hydril ram annular good diagrams bop products

Blowout PreventersCatalog M-9402 D

Houston, Texas 281.449.2000

www.hydril.com

[email protected]

R E D E F I N I N G R E L I A B I L I T Y T M

Blowout PreventersCATALOG M-9402 D

HYDRIL 41

Reliable Replacement Parts

HYDRIL MANUFACTURES PARTS IN A FULL RANGE OF SIZES, PRESSURE RATINGS AND ELASTOMERS.

Diaphragms for PulsationDampeners

Packing Unit and Seals for Annular Blowout Preventers

Hydril Variable Ram (HVR) Packer

Bonnet Seal for Ram BOP

Top Seal for Hydril Variable Ram (HVR)

Diverter Packing Unit and Seals

LL Packing Unit MD Packing Unit

Ram Blocks and Rubber for Ram Blowout PreventersHydril is a registered trademark and service mark.GK, GL, GX, Checkguard, MSP, Compact and Bettis are registered trademarks.

© 2004 Hydril Company LP All Rights Reserved.

Hydril Company engineers, manufactures and markets premium

connections and pressure control products for oil and gas

drilling and production. Since 1933, Hydril has been redefining

reliability in these markets, developing successive generations of

products that make it safe, practical and profitable to produce

energy, even under the most challenging conditions. Hydril's first

objective is to anticipate the needs of our customers and exceed

their expectations everyday.

HYDRIL 140 HYDRIL

Service

Hydril provides fast delivery and quick turnaround on reman-ufactured equipment by buying used BOPs, rebuilding them,and maintaining an inventory. These BOPs meet Hydril’shigh performance standards for used equipment, but theycost less than a new blowout preventer. Customers receive

value, quality, reliability, and economy.There is no comparison between aHydril remanufactured BOP and otherused BOPs on the market. All Hydrilremanufactured BOPs carry a 12 monthwarranty. An owner’s certification bookdocuments all inspections, charts oftests, and manufacturing procedures.

Hydril buys selected used BOP equip-ment and parts for remanufacturing.Hydril has strict procedures for theremanufacturing process, taking noshortcuts to value, quality, and reliability.All remanufacturing is closely controlledon a dedicated line in Houston, Texas.

Hydril products are supported by a worldwide network ofindependent Authorized Repair Facilities equipped to pro-vide comprehensive service for the company’s ram andannular blowout preventers, pulsation dampeners and drillstem valves.

In most circumstances, Hydril evaluates and services BOPsat regional Repair Service Centers. In remote locations, aHydril serviceman can inspect at the rig site and can oftensupervise local repair work at a selected regional shop. Thisminimizes down time and costly shipping expenses.

Hydril supports its products and its customers through aglobal network of service and manufacturing facilities. InHouston, Hydril operates three manufacturing plants. OtherU.S. based locations offer field service assistance and salesexpertise. Hydril has a worldwide presence with internation-al sales offices, field service personnel, Authorized RepairFacilities and manufacturer’s representatives.

Hydril servicemen install new Hydril rubber packing unit, seals, and head to a remanufactured 21-1/4” annular blowout preventer.

FOR RAM AND ANNULAR BLOWOUT PREVENTERS, PULSATION DAMPENERS, AND DRILL STEM VALVES

For more information,request the brochure,Hydril RemanufacturedEquipment andOverhaul and RepairServices.

On Cover: 18 3/4” 15000 psi CompactTM Ram Subsea BOP Stack with multiplex control pods.

REMANUFACTURED EQUIPMENT ANDOVERHAUL AND REPAIR SERVICES

Table of Contents

DIVERTERS

MSP Diverter . . . . . . . . . . . . . . . . . 14

Diverters . . . . . . . . . . . . . . . . . . . . . 38

BOP/Diverter Control Systems . . . . 39

GAS HANDLER

GH Gas Handler . . . . . . . . . . . . . . . 38

BOP CONTROL PODS


ANNULAR BLOWOUT PREVENTERS

Introduction . . . . . . . . . . . . . . . . . . 4

GX Annular . . . . . . . . . . . . . . . . . . . 6

GK Annular BOP. . . . . . . . . . . . . . . . 10

MSP BOP . . . . . . . . . . . . . . . . . . . . 14

Packing Units . . . . . . . . . . . . . . . . . 20

Service . . . . . . . . . . . . . . . . . . . . . . 40

Replacement Parts . . . . . . . . . . . . . 41

RAM BLOWOUT PREVENTERS

Introduction . . . . . . . . . . . . . . . . . . 21

Ram Locking Systems . . . . . . . . . . . 24

Ram Sizes and Styles. . . . . . . . . . . . 26

Compact Blowout Preventers . . . . . . 28

Sentry Workover Ram . . . . . . . . . . . 36

Service . . . . . . . . . . . . . . . . . . . . . . 40


HYDRIL 392 HYDRIL

Continuing leadership in quality, service and new technology since 1933

Specializing in high pressure and severe applications,Hydril's standard of quality has lead the oil tool industrysince the company was established in 1933. Hydril's innova-tive tradition began in the 1930's when it developed the firsthydraulically operated blowout preventer, the annularblowout preventer, and the 2-step high performance connec-tion. Hydril has continued to invest in substantial researchand development. Hence, Hydril designs and products continue to lead the industry into new frontiers of high pres-sure, high temperature service. When purchasing Hydrilequipment, customers can be assured they are enjoyingvalue and reliability for today's most critical applications.

Advanced engineering means reliable assurance of product performance. Hydril simulates field conditions andtests products for specific applications of high pressure, tem-perature, and stress, supporting Hydril's efforts to innovateand improve product performance.

Extensive computerization provides engineers with the capa-bility to evaluate testing and design equipment systems.Finite element analysis provides computer models to predictproduct performance in the field, which are double checkedby testing. CAD packages size and customize systems forspecific applications. Reliability analysis ensures that sys-tems will function when required.

Customers benefit from reliable engineeringassistance. Hydril engineers help customers select appro-priate equipment, material and design after evaluation offield applications. Hydril's engineering resources includeyears of metallurgical experience in high pressure service. Inmany cases, Hydril engineers evaluate products continuallyafter installation.

Hydril's quality control measures are exacting. Large or small, every partof a Hydril product is checked repeatedly to make sure it is exactly asdesigned.

Hydril's quality management system meets worldwide stan-dards. The ISO 9001 Certificate means Hydril has met acceptedinternational standards for marine and offshore products, structuraland mechanical metal products, and pressure vessels. Other certi-fications include API 16A for the latest, most exacting specificationon drill through equipment; Det Norske Veritas (DNV), AmericanBureau of Shipping (ABS), and Lloyds of London. Hydril's manu-facturing plants are based worldwide to respond to regional needs.

BOP/Diverter Control Systems

Conventional Hydraulic Subsea Control Systems:Based upon proven design concepts, components and subsea experience. This category includes shallow-to-medium-depth systems, generally down to the 3,000foot range of water depth.

SURFACE CONTROL SYSTEMS FORBLOWOUT PREVENTERS

Conventional Surface Control Systems:Hydril offers control for blowout preventers used during surface drilling projects, from workover to stan-dard drilling operations.

• Reliable: Field-proven in worldwide drilling opera-tions, using components which have passedextended life cycle testing.

• Rugged: Hydril’s experience in hostile environments provides the know-how to tailor a system to anyrequirements.

• Serviceable: Field-proven performance also includesdesigns that allow fast, effective service and repair.

MULTIPLEX AND HYDRAULIC CONTROL SYSTEMS FOR SUBSEA BLOWOUT PREVENTER STACKS

Multiplex controlled BOP stack, raised from an underwater depth of morethan 6,000 feet. (Transocean Offshore Inc. Discoverer Seven Seas

Electro-pneumatic system for controlling BOPs.

Multiplex SubseaControl Systems:

State-of-the-art micro-processor-based multiplex control tech-niques use software andmicroelectronic circuitry toprovide fast response and redundancy. Painstakingmechanical design andspecially selected con-struction materials provideeasy maintenance andsuperior protection for thesystem, to water depths of10,000 feet or more.

Hydril BOP stack on Smedvig’s Drillship West Navion rated for10,000 foot water depth.

Product Design. Skilled engineers utilize advanced computer techniques forproduct design and analysis.

HYDRIL 338 HYDRIL

Genuine Hydril rubber replacement parts. Hydril manufactures its own rubber for its blowout preventers and diverters. Hydril Elastomer and Industrial Products has set high industry standards of quality for today's oilfield.The combination of high standards of an original equipment manufacturer and years of specialty rubber experiencemean customers receive quality, durability, and serviceunmatched by general rubber suppliers. Purchasing genuineHydril parts to replace original rubber means customersreceive the reliable performance and long life they canexpect from their Hydril equipment.

Service and product support are based worldwide. Thecompany offers field servicemen at convenient locations toassist in the installation and maintenance of Hydril equip-ment. Hydril engineers evaluate operation of equipment inremote locations. For restoring mechanical equipment,Hydril sends engineers to the rig site, or a Hydril AuthorizedRepair Facility evaluates the condition of equipment andoffers recommendations for overhaul and repair.

Hydril's global base ensures that customers receiveresponsive support. Outside the United States, Hydril hasmajor facil i t ies for manufacturing in Canada,Scotland, Singapore and Mexico. In addition, Hydril has 19sales offices, 17 authorized independent repair facilities, andmanufacturers' representatives in over 60 countries.

In North America, there are 13 locations for repair, manu-facturing, field service, and sales.

At Hydril Elastomer and Industrial Products, modern laboratories use awide range of equipment for testing. Genuine Hydril rubber replacement partsprovide the quality and durability customers expect from their Hydril blowoutpreventers and diverters.

Hydril provides 24-hour-a-day field service after the sale. Hydril fieldservice and sales personnel are available around the clock. In addition,Hydril engineers consult at customer locations to solve technical problems.

A Certified Test Label is on every Hydril packing unit. The label indicatesthe unit was tested at full pressure on pipe and 50 percent of pressure onopen hole. Certifications of other tests are sent with the unit. Packagingresistant to both moisture and sunlight and a reinforced crate provide the bestprotection for shipping and storage. These measures ensure you will have thefinest quality packing unit when you are ready to use it.

Diverters

Hydril diverter systems are designed forstrength and simplicity to provide safeventing of shallow gas flows. Therugged equipment endures sustainedpunishment from erosion, impact, thrustand pressure loads. Hydril systems areactuated by a single hydraulic signal. Byeliminating sequencing malfunctions,integral venting substantially reducesthe risk of catastrophes. In the past,inoperative valves have caused many

accidents. Hydril diverter systems eliminate all these valvesincluding flowline valves, vent line valve, port/starboardvalves and fill-up valves.

Hydril diverters need no insert bushing and the packing elements can close on any pipe in the bore or on the open hole.

Hydril systems have accumulated years of service on numerous world class drilling rigs. Hydril has developed a variety of diverter systems to cover a wide range of rig configurations, well requirements and environmentalconditions.

Rig Survivability. Massive flows of gas and sand can quickly destroy a rig's diverter system. Hydril diverters arestout and built to endure the brutal blast of fluid, rocks andsand. They are thoroughly tested. Valves, insert cartridges, linkages and sequencing processes that frequently causemalfunction are completely eliminated.

Economical, easily installed and maintained.Quick connects, scope and spacer spools enable easy nipple-up and down. Hydril diverters use dependable annular packing units. They are routinely maintained andhandled in the same way as BOP's on the rig.

Hydril diverter equipment can be tailored to any rig,bottom founded, floating or tethered. Arrangements can bemade to permit diverting at the surface and/or subsea. Fullredundancy of surface-subsea options can significantlyenhance reliability.

Simplicity is derived from the patented integral vent designthat eliminates extraneous valves and interconnections.One command, a hydraulic signal, does it all. Upwardmotion of the piston stops the flow of the well fluid andopens the vent line. Fast response time is ensured, sincethere is no waiting for valve functions. Risk of malfunctionduring component sequencing is eliminated.

Subsea diverting provides safety advantages by dissipating destructive forces into the sea, remote from therig. Surface support is spared from impact and erosion.Safety of personnel and rig is enhanced.

For more information, ask for Catalog 9102 on Diverters.

FSP 28-2000 Diverter/BOP, a surface diverter system with integralventing for use on jack-ups, plat-forms, and submersibles.

FS 21-500 Diverter System with integral venting for use on semisub-mersibles, drillships, and platforms.(Available for 49-1/2” and 60” rotarytables.)

SXV Diverter Spool with integralventing for use with large bore(20”-30” range) annular blowoutpreventer. This spool can be usedfor surface or subsea diverting.

GH Gas Handler is a specializedannular closing device for deepwaterfloating drilling. The GH is locatedbelow the telescopic joint, and it hasintegral valving to permit circulatingmud to neutralize a gas intrusiontrapped in the riser above the BOP’s.

R

Subsea Diverter Stack permits subsea diverting, circulation of killmud or shearing of pipe, and dis-connecting of the riser as alternativemeans of dealing with shallow gas from a floating rig.

12’ or 16” Flow Selector is a massive two-position target for selecting port/starboard venting.

HYDRIL 374 HYDRIL

Item Part NumberNo. Qty. Description 7”-3K/5K

1 1 Body 3116561

2 2 Pressure Plate 3116567

3 4 Right Bonnet 3116565

4 4 Left Bonnet 316566

5 4 Poston 3116571

6 4 Piston Rod 3116572

7 4 Cylinder 3116577

8 4 Right End Cover 3116563

9 4 Left End Cover 3116564

10 4 Lock Screw 3116576

11 4 Spool** 3116574

12 4 Spool** 3116575

13 4 Guide Pin 3116573

14 4 Lock Screw Cover 3116578

15 2 Ram Block (Assy.) 3116580-X

16 20 Stud 1900096-10040

17 20 Nut 1900183-10

18 4 Stud 1900195-06012

*19 4 O-Ring 1900002-442

20 8 Stud 1900195-04058

21 8 Hex Nut 1900196-04

22 16 Stud 1900095-08088

23 16 Hex Nut 1900036-08

24 16 Hex Hd. Cap Screw 1900097-04004

25 16 Lock Washer 1900159-09

26 4 Set Screw 1900121-408

27 4 Pipe Plug 1900131-06

26

Annular Blowout Preventers

Hydril 's complete line of annular blowout preventersis based on more than 55 years of applicationexperience in all BOP types, sizes, and pressure ranges.There is a Hydril Annular BOP to meet most operationalrequirements in the petroleum industry today, both on thesurface and subsea.

Hydril designs are durable for dependable and efficientoperation. A standard annular BOP will strip drill pipe andtool joints. The packing unit life is reduced when used forstripping operations. It will also close off the annulus or openhole to full working pressure.

The Hydril Annular BOP provides quick, positive closingaction with simplified controls to keep drilling fluids in thehole when a blowout threatens. The universal seal offfeature of the annular blowout preventer permits closure andseal off on drill pipe, kelly, tool joints, or tubing and wirelineas well as the open hole. Maintenance of the BOP is easy,rapid, and economical with the use of standard tools.

The Low Alloy Steel Pressure Vessel represents Hydril's50 years of experience in producing BOPs to provideoptimum strength and stress distribution control. Full-spectrum testing meeting or exceeding API require-ments ensures that the desired safety factors and reliabilityare provided in each unit.

Finite Element Analysis of the body design is themost advanced, in-depth technique of pressure vesseldesign analysis and ensures a structurally sound bodyconfiguration.

Shell (Hydrostatic) Testing of the BOP body meets theAPI accepted industry standards to provide a safe, reliableblowout preventer.

API 16A is the latest API specification covering drillthrough equipment. Hydril is licensed to manufactureBlowout Preventers to these exacting standards. In addition,Hydril preventers may also be certified by such certifyingauthorities as Det Norske Veritas (DNV), American Bureauor Shipping (ABS), or Lloyds of London.

Operating Chambers are Pressure Tested to ratedworking pressure of the BOP or 3000 psi, whichever isgreater. This ensures strength, reliability, safety, andthe ability to over-pressure the chambers in well-controlsituations.

Stainless Steel and Inconel-lined Ring Grooves are available as options.

Hydril GX™10,000 psi Annular Blowout Preventer

7-1/16” 3000-5000 psi SentryDual Workover Ram BOP Parts List

*Seal Kit Items ** Not Shown

1

2

3

4

56

7

8

9

10

13

14

15

16

17

1819

2021

23

25

27

293033

38

39

40

41

42

35

36

37

3

8

34

3034

22


28 4 Pipe Plug 1900066-03

*29 8 O-Ring 1900002-226

*30 8 O-Ring 1900002-255

*31 32 O-Ring** 1900002-017

*32 4 O-Ring 1900002-339

*33 4 Backup Ring 1920012-339

*34 8 Backup Ring 1920012-255

*35 8 Backup Ring 1920012-226

*36 4 T Seal TP049 1920004-427

*37 4 T Seal TR025 1920070-327

*38 4 T Seal TR029 1920070-331

*39 4 Wiper Ring 1920119-33

*40 8 Seal 1920073-134

*41 4 Energizer Ring 3100234-14

*42 4 Check Valve** 3103199

43 4 Set Screw** 1900056-1616

44 4 Top Seal - Pipe 3116587

44a 4 Top Seal - Variable 3116880

45 4 Front Packer-Pipe 3116586-X

45a 4 Front Packer-Variable 3116874

4 Handwheel** 3120085

4 U-Joint** 3120089

* 4 Ring Plastic Packing 3100233-14

* AR Plastic Packing 3100453

Kit – Seal Kit 3117169

Com. Assem. 7” 3,000 3116560-0101

Com. Assem. 7” 5,000 3116560-0202

HYDRIL 536 HYDRIL

EASY TO MAINTAIN• No special tools required – all maintenance can be done

with standard tools.

• No hydraulic lines to disconnect during ram change.

• External piping eliminated by porting hydraulics through BOP body.

• Piston seal installation simplified by bidirectional seal design.

• Hydraulic fluid contamination eliminated by weep hole between wellbore ram shafts packing and hydraulic seal.

• All parts are interchangeable between 3000psi and 5000 psi Sentry models.

FLEXIBLE OPERATIONS • Visual determination of ram position through slots in

cylinder head and protective cover.

• Operates with a wide range of accumulator systems: less than 1500 psi closes the BOP with full working pressurein the bore.

• All wetted surfaces comply with NACE MR 01-75.

• Rugged, one-piece ram blocks available in a wide range of sizes.

OPTIONS• Two inch side outlet can be provided beneath each set

of rams.

• Double drilled 2000/3000 psi flanges.

• Stainless steel-lined connection ring grooves.

7-1/16” 3000-5000 psi SentryDual Workover Ram BOP

COMBINES EASY MAINTENANCE, OPERATIONAL FLEXIBILITY WITH A RANGE OF OPTIONS

SIZES AND PRESSURE RATINGS OF ANNULAR BLOWOUT PREVENTERS

Bore Size Working Pressure Ratings (psi)

(inches) 500 2,000 3,000 5,000 10,000 15,000 20,000

7-1/6 – MSP GK GK GK GK GK

9 – MSP GK GK – – –

11 – MSP GK GK GX GX –

13-5/8 – – GK GX/GK GX GX –

16-3/4 – – – GK – – –

18-3/4 – – – – GX – –

21-1/4 – MSP – – – – –

29-1/2 MSP – – – – – –

RAM BLOCK SIZES (In.)Pipe Variable

Blind 1.900 2-7/8 4-1/2 2-3/8 – 2-7/8

1.315 2-3/8 3-1/2 5.0

1.660 2-1/16 4.0 5-1/2

GX™ 13 5/8-10,000 psiAnnular BOP

Hydril MSP 21 1/42000 psi Latched Head BOP

Hydril GK™5000 psi Screwed Head BOP

HYDRIL 356 HYDRIL

35

Hydril GX® Annular BOP

THE GX . . . THE FIELD PROVENFLAGSHIP PREVENTER OF HYDRIL'S FLEET

The GX offers extra performance and serviceability whileretaining the field proven features of Hydril annular BOPs.

The GX delivers extended operating service with fewpacking unit changes, with a design that is simple and easyto maintain in both surface and subsea operations.

The GX will close on virtually any drill stem member orseal off the open bore. Operating volumes are lower, resulting in faster closing times and smaller accumulatorrequirements. Packing Unit fatigue and stripping life havebeen increased beyond previous industry levels for equiva-lent sized Annular BOPs.

The GX allows full control of packoff tightness duringstripping operations, regardless of wellbore pressures.

The structural design, quality and testing of the GXcontinues Hydril's state-of-the-art advances.Here are the field proven Hydril features the GX provides:

■ Simple design – only 2 moving parts, thus fewer areasare subjected to wear meaning less maintenance anddowntime.

■ Proven operating principle provides full packing unitseal off at maximum working pressure on open hole, casing, drill pipe, tool joints, kelly or tubing.

■ Long piston design for optimum stability and reliableoperation..

■ Latched Head for fast and easy access to packing unitand seals..

■ Opening Chamber Head to prevent inadvertentcontamination of the hydraulic system during packing unitreplacement.

■ Four large pressure energized lip seals are used fordynamically sealing piston chambers.

■ Replaceable Wear Plate eliminates metal to metal contact between the packing unit inserts and the BOPhead,making field repair fast and economical.

■ State-of-the-art structural design, quality and testingfor optimum reliability.

■ Stainless Steel Lined Connection Ring Grooves forcorrosion resistance.

■ Meets NACE MR-01-75 Material Standards for resistanceto sulfide stress cracking.

■ Fabricated from quench and tempered low alloy steel suitable for service in both low and high tempera-ture applications.

GX 18 3/4"-10,000 psi

7-1/16”-10,000, 7-1/16”-15,000,11”-10,000, 13-5/8”-10,000,13-5/8”-15,000, 16-3/4”-10,000, 18-3/4”-10,000, 18-3/4”-15,000

LATCHEDHEAD

WEARPLATE

PACKINGUNIT

OPENCHAMBER

HEAD

OPENCHAMBER

LIFTING SHACKLES

CLOSINGCHAMBER

BALANCED PISTONPiston stability is assured by Hydril's time proven long pistondesign with contact points providing a length-to-diameterratio approaching 1. This design eliminates any tendency tocock and bind during operations with off-center pipe orunevenly distributed accumulations of sand or cuttings.

The GX piston is completely balanced. The opening andclosing chamber areas are of equal size. This equalizes thehydrostatic forces exerted on the piston by the control fluidcolumn in subsea operations. The result is a BOP that uti-lizes a constant closing pressure regardless of water depthor mud weight. This piston design is such that the closingpressure requirements are virtually independent of well borepressures.

Contoured angulartapers on the pistonbowl compress anddisplace the reser-voir of feedablerubber in the back ofthe packing unit.This design assuresoptimum rubberfeeding and closingefficiency. Movement of the piston to theopen position allowsthe packing unit torelax to ful l openbore.

STRIPPINGThe design of the GX effectively controls positioningof the inserts. When stripping, the inserts remainfixed as the rubber flows in and out, allowing thealternating diameters of pipe and tool joints to passthrough the closed packing unit.

This results in a dramatic increase of the GX pack-ing unit stripping life – to approximately twice that of similar sized annular BOPs.

EXTRA PACKING UNIT LIFEThe heart of any annular BOP is its packing unit – and theGX is no exception. Its packing unit has a greatly increasedreservoir of high-quality feedable rubber. Because the reser-voir of feedable rubber is larger, the GX permits continuousrubber feeding as the boresurface wears.The packing units reinforcing flanged steel inserts are dri-

ven by the rubber during closure and quickly reach a fixedposition where they form a steel ring to support the rubberfrom upward motion under wellbore pressure.

Once the inserts reach their fixed position, rubber contin-ues to flow inward, effecting a positive seal off on the drillstring or the open bore.

The rubber is primarily in compression and is thereforeresistant to tears, cuts and abrasions. The steel inserts sta-bilize the rubber and control the flow pattern to minimize rub-ber stress.Packing unit life due to routine testing at full working pres-

sure has been increased beyond previous levels. BecauseHydril Company manufactures all its own packing units, rigidquality control is assured and field performance enhanced.

MORE PRECISE CONTROLTool joints can be stripped through the closed packing unitwhile a full seal is maintained on the pipe.

The GX packing unit design permits precise control ofpackoff tightness, regardless of wellbore pressures. Thisallows a slight drilling fluid leakage to be achieved duringstripping operations to provide lubrication, optimize pullthrough forces and prolong packing unit life.The result is the ability to strip long strings of pipe and tool

joints in or out of the hole at higher wellbore pressures.

HYDRIL 734 HYDRIL

Hydril Conventional Ram BOP Parts List

7-1/16”-3000 Model A, 7-1/16”-5000 Model A,9”-3000, 9”-5000, 11”-3000, 11”-5000,13-5/8”-3000, 13-5/8”-5000,20-3/4”-3000, 21-1/4”-2000, 21-1/4”-5000

HYDRIL 338 HYDRIL

HOW TO ORDER GX PACKING UNITSThe following information should be included when ordering agenuine Hydril packing unit replacement.1. BOP Type: GX2. Bore Size3. Pressure Rating: 5000, 10,000, 15,000 psi.4. Type of Material: (NR)–Natural Rubber; (NBR)–Nitrile Rubber5. Certification: API 16A, Monogramed, other.

Ram Bop Btm Top Ht. Wt.

18-3/4-10000 DR Flg x Std. 73-3/16 51,300 lb.① 18-3/4-10000 EDR Flg. x Std. 81-11/16 51,800 lb.

18-3/4-15000 DR Flg x Std. 93-1/2 69,900 lb.➁ 18-3/4-15000 EDR Flg x Std 96-1/2 70,400 lb.

GX ENGINEERING DATABORE SIZE (inches) 11" 11" 13-5/8" 13-5/8" 13-5/8" 18-3/4"WORKING PRESSURE (psi) 10,000 15,000 5,000 10,000 15,000 10,000

SHELL TEST PRESSURE (psi) 15,000 22,500 10,000 15,000 22,500 15,000(Factory Test Only)CLOSURE RANGE (inches) 11" to 0 11" to 0 13-5/8" to 0 13-5/8" to 0 13-5/8" to 0 18-3/4" to 0CLOSING CHAMBER VOLUME (U.S. Gal.) 17.9 24.1 15.5 24.1 34.0 58OPENING CHAMBER VOLUME (U.S. Gal.) 17.9 24.1 15.5 24.1 34.0 58FULL PISTON STROKE (inches) 7.00 8.50 7.00 8.50 9.50 11.50HEIGHT FLANGED BOTTOM 5M – – 52.32 – – –

10M 57.12 – 54.31 63.25 – 80.1515M 59.44 – – 65.38 77.00 82.50

HUB BOTTOM 5M – – 51 – – –10M – – – – – 76.3815M – – – – 71.88 74.75

STUDDED BOTTOM 5M – – – – – –10M – – – – – –15M – – – – 64.12 68.44

WEIGHT FLANGED BOTTOM 5M – – – – – –10M 21,385 – – 28,000 – 52,25015M 22,085 – – 28,885 – 54,360

HUB BOTTOM 5M – – 14,375 – – –10M – – – – – 50,62015M – – – – – 50,500

STUDDED BOTTOM 5M – – – – – –10M – – – – – –15M – – – – – 50,840

BODY CLEARANCE DIAMETER (inches) 60.38 67.12 58 64.50 73.25 84

Bore Size (inches)Working Pressure (psi)Old Nominal Sizes (inches)

L (Length, inches) Manual Lock

MPL

W (Width, inches)

Flg x Flg

Single Flg x Std

H (Height, inches) Hub x Hub

Flg x Flg

Double Flg x Std

Hub x Hub

Flanged

D (inches) Centerline Preventer to Outlet Face Hub

Studded

Flanged

E (inches) Centerline Lower Outlet to Lower Connection Hub

Studded

Flanged

F (inches) Centerline Upper Outlet to Lower Connection Hub

Studded

G Centerline to Off-Hinge Side (inches)

J Centerline to Hinge Side (inches)

K Centerline to Body Face (inches)

M Centerline to Hinge Pine Centerline (inches)

N Body Face to Hinge Pin Centerline (inches)

O Ram Cavity (inches)

Flanged

P Top of Cavity to Top Connection Face (inches) Hub

Studded

Q Bottom of Upper Ram to Top of Lower Ram (inches)

R O.D. Cylinder Head or Manual Lock Protector (inches) Manual Lock

MPL

Manual Lock

S Preventer Center Line to End of Bonnet Door Open 90° MPL

Flanged

T Width From Outlet to Outlet (inches) Hub

Studded

U Swing Radius (inches) Manual Lock

MPL

ø Minimum Bonnet Angle to Remove Ram (degrees) (not shown)

Approx. Manual Assembly Weight (lbs.) Single

Flanged Connections Double

Max. Size Pipe Ram

API Flange

Ring Gasket Studded

C.I.W. Hub

Ram Blowout Preventer Dimensional Chart (con’t.)

13-5/8 13-5/8 13-5/8 18-3/4 18-3/4 18-3/4 20-3/4 21-1/4 21-1/45000 10,000 15,000 5000 10,000 15,000 3000 2000 500013-5/8 13-5/8 13-5/8 18-3/4 18-3/4 20 20 21-1/4

116-3/4 124-3/4 N/A 147.88 N/A N/A 151-1/2 151-1/2 148

115-11/16 114 119-1/8 139.60 138-1/4 150-3/4 147

40 50-3/4 47-5/8 46-3/4 59-5/8 59-7/8 52-1/4 52-1/4 46

36-1/4 41-3/4 51-3/8 54-1/4① 65-1/2➁ 38-1/2 35-1/4 47

37.90

30-1/8 31-1/4 39-7/16 43-1/8 51 28-7/8 29-1/4 40

▼58-1/8 66-3/4 80-5/8 85-3/4 103-1/2 83-1/2 60-1/4 75-1/4

66.38

▼52 56-1/4 68-11/16 74-5/8 89 53-7/8 54-1/4 68-1/4

23 28-5/8 29-1/2 26.70 33-3/8 34-1/8 28-1/2 28-1/2 28-5/8

21-3/4 22-1/4 N/A 25-1/4 31-1/2 34-1/8 29-3/16 29-3/16 27-7/16

23 28-5/8 N/A 33-1/8 34-1/8 28-5/8

11-1/8 13-3/4 18-5/8 15.40 18-7/8 21-3/4 13-5/16 11-11/16 15-1/4

8-1/16 8-1/2 12-5/8 12.54 13-5/16 16-1/2 8-1/2 8-11/16 12-7/16

4-1/2 4-3/8 6-5/8 6-5/16 13-3/4 7-1/4

33 38-3/4 47-7/8 50-3/8 61-3/4 42-15/16 36-11/16 44-3/16

29-15/16 33-1/2 41-15/16 41.20 44-13/16 54-1/2 33-1/2 33-11/16 40-3/4

26-3/8 30-3/8 35-9/16 51-3/4 35-1/2

17-13/16 22-1/2 19-5/8 19-1/2 25-1/2 25-5/8 23-1/4 23-1/4 21-1/2

22-3/16 28-1/4 28 27-1/4 34-3/16 34-1/4 29 29 29-1/4

14-5/16 15-1/8 17-7/16 15.63 20-1/2 20-5/8 16-7/8 16-7/8 16-7/8

19-3/4 25-1/2 25 24-1/4 30-3/4 30-7/8 26-1/4 26-1/4 26-1/4

2-3/4 3-1/4 3-1/4 3-1/4 3-1/2 3-1/2 3-1/4 3-1/4 3-1/4

8 8-1/4 8-3/4 7-1/4 10 11 7-1/4 7-1/4 7-1/2

14-1/8 16-3/4 21-15/16 22-1/8 27-1/4 15-5/8 13-15/16 19-5/8

11-1/16 11-1/2 15-7/8 16-9/16 20 10-13/16 10-15/16 16-1/8

6-1/2 6-5/8 9-1/2 11 9-9/16 17-1/4 11

13-7/8 16-3/4 20-1/2 21.40 21-1/2 27 17-11/16 17-11/16 21

7 7 N/A 7 N/A 7 7 7

5-1/2 5-1/2 5-1/2 5.58 5-1/2 5-1/2 5-1/2 5-1/2 6-1/2

66-1/4 75-1/8 N/A 91.78 N/A N/A N/A N/A 86-7/8

64-1/2 71 70-3/8 87.51 84-3/8 89-1/4 88-3/8 88-3/8 86-1/2

46 57-1/4 58-1/4 53.90 66-3/4 68-1/4 57 57 57-1/4

43-1/2 44-1/2 58-1/4 54.10 63 58-1/4 58-3/8 58/38 54-7/8

46 57-1/4 48-1/4 66-3/4 68-1/4 N/A N/A 57-1/4

52-1/4 58-1/4 45-3/8 67.53 62 N/A 59-3/4 59-3/4 66

51-1/2 53-1/4 45-3/8 63.20 62 65-15/16 59-3/4 59-3/4 65-3/4

65° 49° 52° 65° 50° 52° 63° 63° 70°

8850 17,000 **21,150 19,900 28,500 **31,900 14,500 14,000 18,000

16,700 37,000 **41,150 38,300 52,000 **62,750 28,000 27,000 32,000

10-3/4 10-3/4 10-3/4 16 16 16 16 16 16

BX164

BX160 BX159 N/ABX163

BX164 CX-18 R-74 R-73 BX165BX164

BX160 BX159 BX159 Bx164 CX-18 R-73 R-73 BX165

**Hub Connections▼ Height dimensions shown are for integral cast bodies. Heights for fabricated bodies are slightly higher.NOTE: API Clamp Type connection requires the use of SR ring grooves and RX Ring Joint GasketsParagraph 4.3.4.2.2.1 API 16A 2nd Edition.NOTE: Operating Pressure is the same for both Blind Ram and Pipe Ram.

HYDRIL 932 HYDRIL

PARTS LIST GX 11”, 13-5/8" AND 18-3/4" BOPS

ITEM PART GX 11" &13-5/8" GX 18-3/4"NO. NAME Qty. Req'd. Qty. Req'd.

1 Head 1 1*2 Head Gasket – 1▲3 Packing Unit 1 14 Body 1 1*5 U-Seal Ring, Inner 2 2*7 Double U-Seal Ring, Middle 1 1*8 Non-Extrusion Ring, Middle 2 29 Piston 1 1

*10 Double U-Seal Ring, Lower 1 1*11 Non-Extrusion Ring, Lower 2 212 U-Seal Ring, Outer 1 –*15 O-Ring, Head 1 116 Slotted Body Sleeve 1 117 Capscrew, Slotted Body Sleeve 12 12*18 O-Ring, Jaw Operating Screw 16 2019 Jaw Operating Screw 16 2010 Head, Opening Chamber 1 121 Shoulder Screw 16 20

* These parts included in seal kit.▲Recommended Spares for One Year Foreign Service, quantity 1 each.

Conventional Ram Blowout PreventerDimensional Chart


22 Pipe Plug, Jaw Operating Screw 16 2023 Radial Latch 16 2024 Relief Fitting 1 125 Shackle, Anchor 4 426 Wearplate 1 127 Capscrew, Wearplate 6 628 Pulldown Bolt Assembly 4 4▲ Complete Seal Kit

ACCESSORIESProtector Plate 1 1Protector Plate Screws 4 4Chain Sling Assembly 1 1Eyebolts for Piston 3 3Eyebolts for Head 3 3Eyebolt, Opening Chamber Head 3 3

RAM BLOWOUT PREVENTER DIMENSIONAL CHART

Bore Size (inches) 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11 11 13-5/8Working Pressure (psi) 3000 5000 10,000 15,000 3000 5000 3000 5000 20,000 10,000 3000Old Nominal Sizes (inches) 6 6 7-1/16 7-1/16 8 8 10 10 11 11 12

L (Length, inches) Manual Lock 77-1/16 77-1/16 79 86-3/16 82-1/2 82-1/2 95 95 106-1/4 116-3/4

MPL 133.16 104-1/2 115-11/16

W (Width, inches) 24-3/4 24-3/4 31-1/4 32-1/4 30-7/8 30-7/8 37-7/8 37-7/8 52.88 39-3/4 40

Flg x Flg 22-9/16 24-1/4 29-1/4 34-3/16 28-3/16 31-11/16 30-1/4 35-1/2 36-1/4 33-1/4

Single Flg x Std 49.19 28

H (Height, inches) Hub x Hub 21-5/8 25-3/4 23-3/4 24-1/4 25-3/4 20-3/4 22-3/8

Flg x Flg 35-9/16 37-3/8 46 54-5/8 48-9/16 52-1/16 ▼49-3/4 55 56-7/8 ▼55-1/8

Double Flg x Std 84.0 48-5/8

Hub x Hub 38-3/8 46 44-1/8 ▼ 43-3/4 45-1/4 41-3/8 44-1/4

Flanged 16-3/4 16-3/4 19-1/16 23-1/8 *18-25/32 *18-25/32 22-3/16 22-3/16 32.75 25-9/16 23

D (inches) Centerline Preventer to Outlet Face Hub 18-3/16 22-7/8 *17-9//16 *17-9/16 21 21 23-5/8

Studded 19-1/16 24-3/8 *18-25/32 *18-25/32 22-3/16 22-3/16 22.13 25-9/16 23

Flanged 8-7/16 9-7/16 10-9/16 13-1/8 9-29/32 11-21/32 10-1/8 12-3/4 21.6 12-1/2 9-5/8

E (inches) Centerline Lower Outlet to Lower Connection Hub 7-3/16 6-3/4 8-13/16 7-11/16 7-1/8 7-7/8 8-3/8

Studded 5-5/16 5-1/16 6-7/17 4-7/8 4-7/8 6-1/4 6-1/4 4-3/4 4-1/2

Flanged 21-7/16 22-9/16 27-5/16 33-3/8 30-9/32 32-1/32 41-5/8 32-1/4 56.41 33-1/8 31-1/2

F (inches) Centerline Upper Outlet to Lower Connection Hub 20-3/16 23-1/2 29-1/16 28-1/16 28-4/8 27-3/8 29

Studded 18-5/16 18-5/16 21-7/8 26-11/16 25-1/4 25-1/4 27-3/4 25-3/4 25-3/8 26-3/8

G Centerline to Off-Hinge Side (inches) 9-1/4 9-1/4 12-5/8 15-1/2 11-7/8 11-7/8 16-3/4 16-3/4 22.13 17-3/4 17-13/16

J Centerline to Hinge Side (inches) 15-1/2 15-1/2 19 22-1/4 19 19 21-1/8 21-1/8 30.75 25 22-3/16

K Centerline to Body Face (inches) 8 8 9-7/16 10 10 10 11-1/2 11-1/2 20.38 12-7/8 14-5/16

M Centerline to Hinge Pine Centerline (inches) 12 12 17 19-1/8 17 17 18-5/8 18-5/8 27.38 21-3/8 19-3/4

N Body Face to Hinge Pin Centerline (inches) 2-5/8 2-5/8 2-1/4 2-3/4 2-1/4 2-1/4 2-3/4 2-3/4 5.09 2-3/4 2-3/4

O Ram Cavity (inches) 5 5 6 6 5-19/32 5-19/32 6-5/8 6-5/8 17.75 7-1/8 8

Flanged 8-9/16 9-1/8 11-5/8 14-3/16 11-13/32 13-5/32 11-3/4 14-3/8 14-7/8 12-5/8

P Top of Cavity to Top Connection Face (inches) Hub 6-1/2 7-3/16 9-7/8 9-3/16 8-3/4 9-1/2 10-5/8

Studded 4 4 6-3/16 7-1/2 6-3/8 6-3/8 8 8 10.44 7-1/16 6-1/2

Q Bottom of Upper Ram to Top of Lower Ram (inches) 13 13 22-1/2 14-1/2 14-25/32 14-25/32 13-3/32 13-3/32 25.94 13-1/2 13-7/8

R O.D. Cylinder Head or Manual Lock Protector (inches) Manual Lock 5 5 5 7 7 7 7 7 7 7

MPL 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 8.54 5-1/2 5-1/2

Manual Lock 44-5/8 44-5/8 47-3/4 55-5/8 50-13/16 50-13/16 58 58 63-15/16 66-1/4

S Preventer Center Line to End of Bonnet Door Open 90° MPL 46-1/2 46-1/2 49-3/4 55-5/8 50-13/16 50-13/16 58 58 78.67 63-1/2 64-1/2

Flanged 45-1/8 45-1/8 38-1/8 46-1/4 37-9/16 37-9/16 44-3/8 44-3/8 65.50 51-1/8 46

T Width From Outlet to Outlet (inches) Hub N/A N/A 36-3/8 45-3/4 35-1/8 35-1/8 42 42 47-1/4 43-1/2

Studded 38 38 38-1/8 48-3/4 37-9/16 37-9/16 44-3/8 44-3/8 44.26 51-1/8 46

U Swing Radius (inches) Manual Lock 36-3/16 36-3/16 37 42-3/8 N/A N/A 44-5/8 44-5/8 62-1/2 52-1/4

MPL 36-3/16 36-3/16 37 42-3/8 N/A N/A 44-5/8 44-5/8 59.75 49-5/8 51-1/2

ø Minimum Bonnet Angle to Remove Ram (degrees) (not shown) 66° 66° 51° 45° 56° 56° 56° 56° 36° 53° 65°

Approx. Manual Assembly Weight (lbs.) Single 2350 2465 5600 5370 5200 5400 5600 6000 31,000 9750 8450

Flanged Connections Double 4910 4930 10,600 10,200 10,200 10,400 10,800 12,000 59,000 18,100 16,300

Max. Size Pipe Ram 5-1/2 5-1/2 5-1/2 5-1/2 7 7 8-5/8 8-5/8 7-5/8 8-5/8 10-3/4

API Flange BX158

Ring Gasket Studded R-45 R-46 BX156 BX156 R-49 R-50 R-53 R-54 BX158 R-57

C.I.W. Hub BX156 BX156

* Hinge side centerline to outlet face dimensions for 9”-3M & 5M Preventers as follows: 20” & 25-3/32 for 2”-5M and 3”-3M & 5Mstudded outlets; 22-1/2” for 2”-5M flanged outlet; 23” for 3”-3M flanged outlet; 24” for 3-1/8-5M Hub outlet; and 23-1/2” for 3”-5M flanged outlet

▼ Height dimensions shown are for integral cast bodies. Heights for fabricated bodies are slightly higher.NOTE: API Clamp Type connection requires the use of SR ring grooves and RX Ring Joint Gaskets Paragraph 4.3.4.2.2.1 API 16A 2nd Edition.NOTE: Operating Pressure is the same for both Blind Ram and Pipe Ram.

Exploded View of GX, 11", 13-5/8" Exploded View of GX 18-3/4"

HYDRIL 3110 HYDRIL

The GK Annular Blowout Preventer was designed especiallyfor surface installations and is also used on offshoreplatforms and subsea. The GK is a universal annularblowout preventer with a long record of proven, qualityperformance.Only Two Moving Parts (piston and packing unit) on the

Hydril Annular BOP mean few areas are subjected towear. The BOP is safer and more efficient, requiring lessmaintenance and less downtime.A Long Piston with a length to diameter ratio approaching

one eliminates tendencies to cock and bind duringoperations with off-center pipe or unevenly distributedaccumulations of sand, cuttings, or other elements. Thisdesign enhances the ability of the packing unit to reopen tofull bore position.The Conical Bowl Design of the Piston provides a simple

and efficient method of closing the packing unit. With thepiston serving as a sealing surface against the rubberpacking unit, there is no metal-to-metal wear on the sealingsurface and thus longer life results.A Field Replaceable Wear Plate in the BOP Head serves

as an upper non-sealing wear surface for the movement ofthe packing unit, making field repair fast and economical.Maximum Packing Unit Life is possible with the provision

for measuring piston stroke. This measurement indicatesremaining packing unit life without disassembly and ensuresthe longest and safest use of the packing unit.

Two Choices of Packing Unit Rubber Compoundspermit more flexible applications.

The Screwed Head Design of the GK BOP is a simple,efficient, and strong method of connecting the head to thebody for safe operation with no loose parts to be lost downthe hole or overboard.The Latched Head Design is available on the GK, 13-5/8"-

5000 and larger BOPs. It provides fast access to packingunits and seals for minimum downtime with no loose parts tobe lost down hole or overboard.

Large Pressure Energized Seals are used fordynamically sealing piston chambers to provide safeoperation, long seal life, and less maintenance.

Piston Sealing Surfaces Protected by Operating Fluidlowers friction and protects against galling and wear toincrease seal life and reduce maintenance time.

The Operating Chambers are Tested to Full BOPWorking Pressure to ensure strength, reliability, and theability to over-pressurize the chambers in emergencies.Meets NACE MR-01-75 Material Standards for resistance

to sulfide stress cracking.

Hydril GK® Annular Blowout Preventers

Bore Size (in.) 13-5/8 13-5/8 13-5/8 13-5/8 18-3/4 18-3/4 18-3/4 20-3/4 21-1/4 21-1/4

Working Pressure (psi) 3000 5000 10,000 15,000 5000 10,000 15,000 3000 2000 5000

Old Nominal Sizes (in.) 12 13-5/8 13-5/8 13-5/8 18-3/4 18-3/4 18-3/4 20 20 21-1/4

Manual LockPipe Ram 10 10 14-1/4 NA 14-1/4 NA NA 10 10 14-1/4

Shear Ram 14-1/4 14-1/4 14-1/4 NA NA NA NA 14-1/4 14-14 14-1/4Cylinder Bore (in.)

MPLPipe Ram 10 10 14-1/4 14-1/4 14-1/4 14-1/4 15.5 14-1/4 14-1/4 14-1/4

Shear Ram 14-1/4 14-1/4 14-1/4 14-1/4 14-1/4 14-1/4 15.5 14-1/4 14-1/4 14-1/4

Manual LockPipe Ram 5.4 5.4 12.2 NA 17.1 NA NA 8.1 8.1 17.5

Shear Ram 11.5 11.5 12.2 NA 17.1 NA NA 17.2 17.2 17.5Gallons To Close (1 Set)

MPLPipe Ram 5.9 5.9 12.8 12.6 17.9 17.1 19.4 18.0 18.0 19.3

Shear Ram 12.0 12.0 12.8 12.6 17.9 17.1 19.4 18.0 18.0 19.3


Shear Ram 11.2 11.2 11.6 NA 16.1 NA NA 16.3 16.3 16.6Gallons To Open (1 Set)

MPLPipe Ram 4.9 5.2 11.6 11.0 16.1 15.6 16.7 16.3 16.3 16.6

Shear Ram 11.2 11.2 11.6 11.0 16.1 15.6 16.7 16.3 16.3 16.6


Shear Ram 10.1 10.1 10.2 NA 10.1 NA NA 10.14 10.14 10.2Closing Ratio

MPLPipe Ram 5.2 5.2 10.6 7.74 10.6 10.6 7.27 10.6 10.6 10.6

Shear Ram 10.6 10.6 10.6 7.74 10.6 10.6 7.27 10.6 10.6 10.6

Opening Ratio Manual MPLPipe 2.1 2.1 3.8 3.56 1.9 1.9 2.15 .98 .98 1.9

Shear Ram 4.7 4.7 3.8 3.56 2.2 1.9 2.15 2.2 2.2 1.9

Max. Hydraulic Operating Pressure (psi) 3000 3000 3000 3000 3000 3000 3000 3000 3000 3000

Bonnet Bolts 1400 2350 4900 8500 2400 7500 8500 1300 900 2400†Torque Required (Ft. Lbs.) *2000 *2000 *2000 *2000 *2000 *2000

†Based on Hydril Thread Lubricant with coefficient of friction = 0.069

* Low torque bonnet seal

18-3/4”-10,000 psi Ram BOPAutomatic Multiple Position Lock (MPL) illustrated

Cutaway View of Screwed Head GK BOPWith Packing Unit Fully Open

WEARPLATE

PACKINGUNIT

HEAD

OPENCHAMBER

PISTON

CLOSINGCHAMBER

HYDRIL 1130 HYDRIL

The GK BOP has been developed especially for use onsurface installations but it is also used subsea. Standardoperation requires both opening and closing pressure. Sealoff is effected by hydraulic pressure applied to the closingchamber which raises the piston, forcing the packing unitinto a sealing engagement. Any normal closing unit havinga separate pressure regulator valve for the annular BOPand sufficient accumulator volume can be used to operatethe GK.

The GK is designed to be well pressure assisted inmaintaining packing unit seal off once initial seal off hasbeen effected. As well pressure further increases, closureis maintained by well pressure alone. Exceptions are the GK7-1/16"-15,000 and 20,000 psi which are not well pressureassisted and closing pressure must be maintained on theBOP to assure seal off. (Refer to the operators manual forclosing pressure curves.)

STRIPPING OPERATIONSDuring well control operations, drill pipe can be rotated andtool joints stripped through a closed packing unit, whilemaintaining a full seal on the pipe. Longest packing unit lifeis obtained by adjusting the closing chamber pressure justlow enough to maintain a seal on the drill pipe with a slightamount of drilling fluid leakage as the tool joint passesthrough the packing unit. This leakage indicates the lowestusable closing pressure for minimum packing unit wear andprovides lubrication for the drill pipe motion through thepacking unit.The packing unit life is reduced when used forstripping operations.The pressure regulator valve should be set to maintain the

proper closing chamber pressure. If the pressure regulator

valve cannot respond fast enough for effective control, anaccumulator (surge absorber) should be installed in theclosing chamber control l ine adjacent to the BOP –precharge the accumulator to 50% of the closing pressurerequired. In subsea operations it is sometimes advisable toadd an accumulator to the opening chamber line to preventundesirable pressure variations with certain control systemcircuits.

Recommended test pipe for maximum packing unit life.❍ Reference only replaced by GX

Operation of the GK® Blowout Preventer

AVERAGE CLOSING PRESSURE (PSI) TO ESTABLISH INITIAL SEAL OFF INGK BLOWOUT PREVENTERS FOR SURFACE INSTALLATIONS

Pipe ❍ ❍O.D. 7-1/16- 7-1/16- 7-1/16- 7-1/16- 7-1/16- 13-5/8- 13-5/8- 13-5/8- 16-3/4

Inches 3M 5M 10M 15M 20M 9-3M 9-5M 9-10M 11-3M 11-5M 11-10M 3M 5M 10M 16-2M 16-3M 5M 18-2M*

6-5/8 – – – – – – – – – 350 – 700 600 – 350 450 – 500

5 – 400 – – – – – 350 450 450 500 800 650 700 400 500 – 550

4-1/2 350 400 350 2100 2200 400 450 380 450 450 500 900 650 700 500 500 600 600

3-1/2 400 450 550 2100 2200 500 600 570 550 525 700 1000 700 1200 600 600 650 650

2-7/8 400 450 750 2100 2200 550 650 760 650 800 800 1100 750 1400 700 700 750 700

2-3/8 500 500 850 2100 2200 650 750 860 750 900 1100 – 950 1400 800 800 850 740

1 90 600 600 900 – – 750 850 850 920 – – – 1000 1500 900 950 950 850

1 66 700 700 1000 – – 850 950 1000 950 – – – 1000 1500 1000 1000 1050 950

CSO 1000 1000 1150 – – 1050 1150 1150 1150 1150 1500 1200 1150 2200 1150 1150 1150 1150

The pressures above are a guideline. Maximum packing unit life will be realized by theuse of the lowest closing pressure that will maintain a seal. For subsea applications, seethe appropriate Operator's Manual for computation of best closing pressure.

Conventional Ram BOP Operational Data Chart

13-5/8”-10,000 psi Ram BOPManual Lock illustrated

Bore Size (in.) 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11 11

Working Pressure (psi) 3000 5000 10,000 15,000 3000 5000 3000 5000 10,000 20,000

Old Nominal Sizes (in.) 6 6 7-1/16 7-1/16 8 8 10 10 11 11

Manual LockPipe Ram 5-1/2 5-1/2 7-1/2 10 7-1/2 7-1/2 8-1/2 8-1/2 10 –

Shear Ram – – 12-3/4 12-3/4 – – 10-3/4 10-3/4 12-3/4 –Cylinder Bore (in.)

MPLPipe Ram 5-1/2 5-1/2 7-1/2 NA NA NA NA NA 10 14-1/4

Shear Ram 12-3/4 – – 10-3/4 10-3/4 12-3/4 14-1/4

Manual LockPipe Ram 1.0 1.0 1.9 3.7 1.9 1.9 3.3 3.3 5.2 –

Shear Ram – – – – – – 5.5 5.5 8.8 –Gallons To Close (1 Set)

MPLPipe Ram 1.2 1.2 2.0 3.9 – – – – 5.7 12.5

Shear Ram – – – – – – 6.0 6.0 9.3 12.5

Manual LockPipe Ram 93 93 1.8 3.4 1.9 1.9 3.2 3.2 5.0 –

Shear Ram – – – – – – 5.0 5.0 8.2 –Gallons To Open (1 Set)

MPLPipe Ram 93 93 1.8 3.4 – – – – 5.0 11.5

Shear Ram – – – – – – 5.0 5.0 8.2 11.5


Shear Ram – – – – – – 5.6 5.6 11.7 –Closing Ratio

MPLPipe Ram 5.4 5.4 8.2 7.6 – – – – 7.6 12.69

Shear Ram – – – – – – 6.0 6.0 12.4 12.69

Opening Ratio Manual MPLPipe 1.5 1.5 1.7 6.6 2.6 2.6 2.0 2.0 2.4 –

Shear Ram – – – – – – 4.2 4.2 4.0 –


Bonnet Bolts 950 1600 1700 2350 600 1000 850 1400 3100 1500†Torque Required (Ft. Lbs.)


HYDRIL 2912 HYDRIL

BORE SIZE (inches) 11❍ 11❍ 13-5/8 13-5/8 13-5/8 13-5/8 HL 13-5/8 13-5/8❍ 13-5/8❍ 16-3/4▲ 16-3/4▲ 16-3/4 16-3/4

WORKING PRESSURE (psi) 10,000 *10/15,000 3000 3000 5000 5000 5000 10,000 10,000 2000 3000 5000 5000

HEAD TYPE LATCHED LATCHED SCREWED LATCHED SCREWED LATCHED SCREWED SCREWED LATCHED SCREWED SCREWEDSCREWEDLATCHED

OLD NOMINAL SIZE – – 12 12 – – – – – 16 16 – –

SHELL TEST PRESSURE Factory Only 15,000 22,600 6000 6000 10,000 10,000 7500 15,000 15,000 3000 45000 10,000 10,000

OPERATING CHAMBER TEST PRESSURE Factory Only 10,000 10,000 3000 3000 5000 5000 3000 10,000 10,000 3000 3000 5000 5000

• OPERATING

CHAMBER CLOSING 25.10 26.67 11.36 11.36 17.98 17.98 17.98 ††37.18 ††37.18 17.46 21.02 28.70 28.70

VOLUME (Gal.) OPENING 18.97 20.45 8.94 8.94 14.16 14.16 ††26.50 ††26.50 12.59 15.80 15.80 19.93 19.93

(For Full Piston Stroke)

FULL PISTON STROKE (inches) 8 8-1/2 7-1/8 7-1/8 8-1/2 8-1/2 8-1/2 ††10-1/2 ††10-1/2 8-1/2 9 10-1/2 10-1/2

BODY DIAMETER (inches) 58 64-3/4 40-1/2 45-1/4 45-1/2 47-3/4 44 61 63-1/2 46-1/4 48-1/2 53-1/2 54-1/2

CLEARANCE DIAMETER (inches) 60-3/4 69-3/4 47-1/2 47-1/2 52-1/4 52-1/4 48-1/2 68-1/8 68-1/8 53-1/4 55-1/2 59-1/2 59-1/2

FLANGED BOTTOM 10M:63-3/8 72-15/16 45-1/4 45-1/4 5M:54-1/8 5M:54-1/2 – 71-3/8 71-5/16 49-1/2 53-7/8 61-1/4 61-19/6415M• 10M:56-3/16 10M:59-9/16

**HEIGHT (inches) STUDDED BOTTOM 10M:54-7/8 60-7/8 39-3/8 39-3/8 5M:46-1/2 5M• – 60-5/8 61-1/8 43-3/4 47-1/4 53 53-27/6415M 10M:46-1/2 10M•

CIW HUB BOTTOM 10M:61 67-7/8 43 43 5M:51-1/2 5M:51-7/8 46 66-7/8 66-13/16 46-1/2 – 59-7/8 59-59/6415M:60-1/4 10M:51-1/2 10M:51-7/8

FLANGED BOTTOM • • 8784 • 5M:13,800 5M:13,250 – 33,525 • 11,417 14,868 20,835 21,23010M:14,500 10M:13,900

**WEIGHT (lbs.) STUDDED BOTTOM • 35,350 8522 • 5M:13,100 • – 32850 • 11,100 14,470 20,000 20,40010M:

approximate CIW HUB BOTTOM • • 8650 • • • 9400 32,785 33,377 11,317 – 20,545 20.950

FLANGED 10M:BX158 BX158 RX57 RX57 5M:BX160 5M:BX160 – BX159 BX159 RX65 RX66 BX162 BX16215M:BX158 10M:X159 10M:BX159

STANDARD RING GROOVE STUDDED 10M:BX158 BX158 RX57 RX57 5M:BX160 5M:BX160 – BX159 BX159 RX65 RX66 BX162 –10M:BX159 10M:BX159

CIW HUB 10M:BX158 BX158 RX57 RX57 5M::BX160 5M:BX160 BX160 BX159 BX159 RX65 – BX162 BX16215M:BX158 10M:BX159 10M:BX159

*15,000 psi Shell w/10,000 psi Packing Unit ▼ 1" NPT hydraulic connections are standard, 1-1/4" or -1 1/2" available on request.▲ Information Only †Older models may have 8-5/16" bore• Available on Request ††Older models have 9-3/4" piston stroke with 34.53 gallon closing chamber volume and 24.66 opening chamber volume**With standard studded top connection rated to BOP working Pressure ❍ Reference only replaced by GX

WEIGHT (LBS.) OF GK 2000, 3000 AND 5000 PSI

GK ENGINEERING AND DIMENSIONAL DATA

BORE SIZE (inches) 7-1/16 7-1/16 7-1/16 7-1/16 7-1/16 †9 †9 9 11 11 11 11

WORKING PRESSURE (psi) 3,000 5,000 10,000 15,000 20,000 3,000 5,000 10,000 3,000 5,000 5,000 10,000

HEAD TYPE SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED LATCHED SCREWED

OLD NOMINAL SIZE 6" 6" – – – 8" 8" – 10 10 10 –

SHELL TEST PRESSURE Factory Only 6000 10,000 15,000 22,500 30,000 6000 10,000 15,000 6000 10,000 10,000 15,000

OPERATING CHAMBER TEST PRESSURE Factory Only 3000 5000 10,000 15,000 20,000 3000 5000 10,000 3000 5000 5000 10,000

• OPERATING

CHAMBER CLOSING 2.85 3.86 9.42 11.2 10.9 4.33 6.84 15.90 7.43 9.81 9.81 25.10

VOLUME (Gal.) OPENING 2.24 3.30 7.08 7.50 7.20 3.41 5.80 11.95 5.54 7.98 7.98 18.97


FULL PISTON STROKE (inches) 4-1/8 4-1/2 5-1/2 5-1/2 5-1/2 5-3/4 5-3/4 6-3/4 6-1/8 7-1/8 7-1/8 8

BODY DIAMETER (inches) 26 29-1/4 43-3/4 50 55 28 34 50-1/2 33-3/4 37-1/2 42-1/4 56-1/2

CLEARANCE DIAMETER (inches) 32-1/4 35-3/4 49-1/2 61 58 34-1/2 41 56-3/4 40 44-1/4 44-1/4 61-1/2

FLANGED BOTTOM 32 36-7/8 10M:48-1/8 54-1/8 59 37-7/8 41-3/4 55-3/4 39-3/4 5M:47-13/16 5M:48-1/4 10M:63-1/215M:48-3/4 10M:48-9/16 10M:49 15M:65-13/16

**HEIGHT (inches) STUDDED BOTTOM 27-3/4 30-3/4 • 45-7/8 48-5/8 32-3/4 34-3/4 48-1/2 34-3/8 5M:39-5/8 5M:40-1/16 10M:5510M:40-1/4 10M:40-11/16

CIW HUB BOTTOM 31-1/8 34-7/8 10M:47-1/8 • – 5M:36-7/8 • – 38-1/8 5M:44-7/8 45-5/16 10M:61-1/815M• 10M• – 15M:61

FLANGED BOTTOM 2715 4000 12200 14250 23000 3500 6000 18540 5500 5M:8200 • 10M:2614010M• 15M•

**WEIGHT (lbs.) STUDDED BOTTOM 2585 3785 • • 22000 3300 5700 18340 5140 5M:7750 • 2546010M•

approximate CIW HUB BOTTOM 2505 3850 11900 • – 5M:3450 • – 5350 5M:7920 • 10M:2600010M• 15M:26100

FLANGED RX45 RX46 10M:BX156 BX156 BX156 RX49 RX50 BX157 RX53 5M:RX54 5M:RX54 10M:BX15815M:BX156 10M:BX158 10M:BX158 15M:BX158

STANDARD RING GROOVE STUDDED RX45 RX46 – BX156 BX156 RX49 RX50 BX157 RX53 5M:RX54 5M:RX54 10M:BX15810M:BX158 10M:BX158

CIW HUB RX45 BX156 BX156 – – RX49 • – RX53 5M:RX53 5M:RX53 10M:BX15815M:BX158

*Compact Model ▼ Available on Request

TYPE GK BLOWOUT PREVENTERS

GK* GK* GK GK GK GK GK GK GK GK GK GK GK GK GK GK7-1/16 7-1/16 9 9 11 11 11 13-5/8 13-5/8 13-5/8 13-5/8 13-5/8 16-3/4 16-3/4 16-3/4 16-3/43000 5000 3000 5000 3000 5000 5000 3000 3000 5000 5000 5000 2000 3000 5000 5000

Screwed Screwed Screwed Screwed Screwed Screwed Latched Screwed Latched Screwed Latched HL* Screwed Screwed Screwed LatchedHead Head Head Head Head Head Head▼ Head Head▼ Head Head Head Head Head Head

BOP Assembly FLANGED 2715 4000 3560 6000 5300 8250 8784 9550 13800 13250 9400 11417 14868 20830 –

STUDDED 2580 3830 3420 5740 5140 7800 8522 – 13100 – – 11100 14470 2000 –

BOP Head 546 1080 803 1308 1220 1835 2305 2160 3455 2585 2990 4064 5210 6641 3698

PACKING UNIT Natural Rubber 109 135 125 198 206 305 305 355 355 470 470 470 530 560 675 675

Nitrile Rubber 111 138 131 205 213 311 311 361 361 480 480 480 540 572 685 685

Piston 610 793 610 1054 1042 1380 1380 1680 1680 2455 2455 2060 2460 2878 3300 3300

BOP Body FLANGED 1240 2060 1855 3620 2600 4645 4135 4840 7120 7120 3983 5250 7146 9710 –

STUDDED 1000 1925 1710 2990 2400 4112 3910 – – – – 4860 6980 – –

Slotted Body Sleeve – – – – – – 180 180 230 230 190 – – 311 311

BOP Bore Size (in.) 7-1/16 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11 11 13-5/8

Pressure Rating (psi) 3000 5000 10,000 15,000 20,000 3000 5000 3000 5000 10,000 20,000 3000

Bonnet Bolt Size 2-8 UN 2-8 UN 2-1/4-8 UN 2-1/2-8 UN 2-3/8-8 UN 1-7/8-8 UN 1-7/8-8 UN 2-8 UN 2-8 UN 2-3/4-8 UN 3-5/8-8 UN 2-1/4-8 UN

*Bonnet Bolt Torque (ft. lbs.) 950 1,600 1,700 2,350 2,400 600 1,000 850 1,400 3,100 1,500 1,400

Cylinder Nut Size 1-1/4-8 UN 1-1/4-8 UN 1-1/4-8 UN 1-3/8-8 UN 1-3/8-8 UN 1-1/14-8 1-1/4-8 UN 1-3/8-8 UN 1-3/8-8 UN 1-1/2-8 UN 1-1/2-8 UN 1-3/8-8 UN

Cylinder Nut Torque (ft. lbs) 640 640 580 1,500 880 580 580 760 760 960 880 960

Conversion of Hydril High Pressure Ram BOPs toaccept New Bonnet Seal Improves Seal Integrity andLowers Bonnet Bolt Torque.Based on Hydril's record of providing the newest and mostadvanced designs in blowout prevention equipment, Hydrilhas again met the challenge by developing a new patentedbonnet seal that overcomes bonnet gap problems caused byhigh pressures. Minimizing these gaps currently requires theuse of very high BOP bonnet bolt torques on high pressureBOPs. Seal gap problems become more severe in both coldweather and high temperature applications. Standard highpressure seals tend to loose their preload without internalpressure in the BOP which sometimes causes sealing

difficulties at low pressures, especially in cold temperatures.The results of Hydril's new bonnet seal design improves sealintegrity at both low and high pressures and lowers bonnetbolt torque significantly to 1500 - 2000 ft.-lbs.

Hydril's original bonnet seal consists of a single seal ringinstalled in a groove in the bonnet face (see Figure A).Hydril's new bonnet seal design consists of a set of specialcompound O-rings installed in a seal ring carrier. Conversionof the BOPs containing the original style bonnet seal to thenew bonnet seal requires removal of the bonnet, machininga new cavity for the new seal ring carrier, and installing theseal ring carrier and the O-rings in the cavity as shown inFigure B.

BOP Body Bonnet

Figure A. Hydril's Original Bonnet Seal Design

Original Bonnet Seal

Back-Up Ring

O-Ring Seal

BOPBODY

Spring O-Ring

BONNET

SealCarrier

Screw

Figure B. Bonnet Converted to New BonnetSeal Design (U.S. Pat. No. 5255890)

BonnetSeal

*Torque values were determined by using Hydril Thread Lubricant (Coefficient of friction 0.069)

*Conventional RAM **Compact RAM

RAM BOP BOLT TORQUE CHART

Conventional Ram Bonnet Seal Upgrade

BOP Bore Size (in.) 13-5/8 13-5/8 13-5/8 16-3/4 18-3/4* 18-3/4** 18-3/4* 18-3/4** 18-3/4* 18-3/4** 20-3/4 21-1/4 21-1/4

Pressure Rating (psi) 5000 10,000 15,000 10,000 5000 5000 10,000 10,000 15,000 15,000 3000 2000 5000

Bonnet Bolt Size 3-1/4-8 UN 3-1/4-8 UN 3-1/4-8 UN 3-1/2-8 UN 2-3/8-8 UN 3-1/4-8 UN 3-1/2-8 UN 3-1/4-8 UN 3-1/4-8 UN 4-8 UN 2-8 UN 2-8 UN 2-3/8-8 UN

*Bonnet Bolt Torque (ft. lbs.) 2,350 4,900 8,500 6,750 2,400 2,000 7,500 2,000 8,500 2,000 1,300 900 2400

Cylinder Nut Size 1-3/8-8 UN 1-1/2-8 UN 1-1/2-8 UN 1-1/2-8 UN 1-3/8-8 UN 1-1/4-8 UN 1-1/2-8 UN 1-1/4-8 UN 1-1/2-8 UN 1-1/4-8 UN 1-3/8-8 UN 1-3/8-8 UN 1-3/8-8 UN

Cylinder Nut Torque (ft. lbs.) 1,160 880 880 880 880 550 880 550 1,280 550 960 960 880

HYDRIL 1328 HYDRIL

ACCESSORIES FOR HYDRIL GK BLOWOUT PREVENTERSChain Sling Assembly 1 Eyebolts – Piston 2 Eyebolts – Head 2 Protector Plate 1 Protector Plate Screw 4

PARTS LIST – HYDRIL GK BLOWOUT PREVENTERS

GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK-7-1/16 7-1/16 9 9 11 11 11 13-5/8 13-5/8 13-5/8 13-5/8 13-5/8 16-3/4 16-3/4 16-3/4 16-3/43000 5000 3000 5000 3000 5000 5000 3000 3000 5000 5000 5000 2000 3000 5000 5000

Item Screwed Screwed Screwed Screwed Screwed Screwed Latched Screwed Latched Screwed Latched Screwed Screwed Screwed Screwed LatchedNo. Part Name Head Head Head Head Head Head Head Head Head Head Head Head Head Head Head Head

1 Head 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

t2 Packing Unit

Natural, Nitrile or

Neoprene Rubber 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

3 Piston 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

**4 Slotted Body Sleeve 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

5 Body 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

*6 Head Gasket 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

*7 Head Seal – – – – – – 1 – 1 – 1 – – – – 1

*8 U-Seal, Upper 2 2 2 2 2 2 2 2 2 2 2 – 2 2 – –

*9 U-Seal, Middle 2 2 2 2 2 2 2 2 2 2 2 – 2 2 – –

*10 U-Seal, Lower 2 2 2 2 2 2 2 2 2 2 2 – 2 2 – –

*11 Double U-Seal, Upper – – – – – – – – – – – 1 – – 1 1

*12 Non extrusion Ring, Upper – – – – – – – – – – – 2 – – 2 2

*13 Double U-Seal, Middle – – – – – – – – – – – 1 – – 1 1

*14 Non extrusion Ring, Middle – – – – – – – – – – – 2 – – 2 2

*15 Double U-Seal, Lower – – – – – – – – – – – 1 – – 1 1

*16 Non extrusion Ring, Lower – – – – – – – – – – – 2 – – 2 2

17 Pipe Plug, Piston Indicator 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

18 Capscrew, Slotted Body Sleeve 10 12 10 10 12 12 12 12 12 6 6 6 – 12 7 7

19 Head Lock Screw 1 1 1 1 1 1 – 1 – 1 – 1 1 1 1 –

20 Lock Collar – – – – – – – – – – – 1 – – 1 –

21 Jaw – – – – – – 16 – 16 – 20 – – – – 20

22 Jaw Operating Screw – – – – – – 16 – 16 – 20 – – – – 20

23 Capscrew, Jaw Holding – – – – – – – – – – 20 – – – – 20

*24 Seal, Jaw Holding Capscrew – – – – – – – – – – 20 – – – – 20

*25 Non extrusion Ring, Jaw – – – – – – – – – – 20 – – – – 20

Holding Capscrew

*26 O-Ring, Jaw Operating Screw – – – – – – 16 – 16 – 20 – – – – 20

27 Relief Fitting – – – – – – 1 – 1 – 1 – – – – 1

29 Wear Plate 1 1 1 1 1 1 1 1 1 1 1 – – 1 1 1

30 Cap Screw, Wear Plate 6 6 6 6 6 6 6 6 6 6 6 – – 6 6 6

31 Spacer Sleeve – – – – – – 16 – 16 – – – – – – –

32 Sleeve Screw – – – – – – 16 – 16 – – – – – – –

33 Pipe Plug – – – – – – 16 – 16 – – – – – – –

34 Head Clamp – – – – – – 4 – 4 – – – – – – 2

35 Head Clamp Cap Screw – – – – – – 4 – 4 – – – – – – 2

▼ Complete Seal Kit – – – – – – – – – – – – – – – –

* These parts included in Seal Kit. ** Older model BOPs equipped with welded type sleeve.▼ Recommended spares for One Year Foreign Service, quantity 1 each.

GK-13-5/85000HL

ScrewedHead

No compromise in operating capabilities. Hydril’scompact BOPs provide the same reliability andlong service life the industry has come to expectin its standard size ram BOPs.

• Easy field maintenance: Patented bonnet sealpermits low torque makeup, less time to openbonnet and access ram blocks. Fewer bonnetbolts further reduce maintenance time.

• Reduced downtime: Upper seal seats and bottom wear plates can be replaced in service. Noneed to disassemble the stack, remove it from the rig and ship to an offsite repair facility for time-consuming welding, stress-relief and re-machining. The hydraulic manifold is also field replaceable.

• Increased fluid flow capacity: Hydraulic mani-fold design increases fluid flow capacity throughthe hinge by as much as 40 percent.

• Operating flexibility: Hydraulic manifold installson either side of the BOP, permitting change ofbonnet opening side as required to fit variousstack configurations.

COMPACT BLOWOUT PREVENTER SPECIFICATIONS(Values are typical, and may vary with configuration. Studdedtop, flanged bottom, dual ram types are shown)

LIGHTER WEIGHTLOWER HEIGHTIdeal for both rig upgrades and new builds where space is limited. Hydril’s compact blowout preventers aretypically up to 20 percent shorter than comparable conventional dual ram BOPs, and approximately 15 percent lighter. Here’s an example:

Bore Inches 18 3/4 18 3/4 18 3/4 13 5/8

Pressure psi 5,000 10,000 15,000 15,000

Height Inches 59 63 75 60

Weight Pounds 34,000 35,000 53,100 31,000

Conventional Dual RAM BOP18 3/4 inch bore

15,000 psi pressureTypical weight: 70,000 poundsTypical height: 93-1/2 inches

Compact Dual RAM BOP18 3/4 inch bore

15,000 psi pressureTypical weight: 53,100 pounds

Typical height: 75 inches

Type Units Sizes

Compact™ Blowout Preventers

EACH HYDRIL VARIABLE RAM (HVR) IS DESIGNED TO CLOSE AND SEAL ON A RANGE OF PIPE SIZES.

UNIVERSAL SEAL OFFThe HVR gives a universal seal off feature especially

useful on tapered drill strings and drill pipe that does nothave a constant diameter over its length. Two ram BOPswith HVRs can be used on a tapered string to provide abackup for all drill pipe sizes. This application eliminateshaving one pipe ram for small diameter pipe and one forlarge diameter pipe. If a BOP stack is assembled with ablind or blind/shear ram and two sets of Hydril VariableRams 3-1/2"-6" size, the HVRs will seal on the drill pipe from3-1/2" to 5-1/2", providing the backup seal off capabilityneeded on a tapered string. The HVR is therefore ideallysuited for subsea use by expanding the seal off capability ofone ram assembly within a BOP.

INTERLOCKING I-BEAM INSERTSThe HVR has a variable front packer with interlocking

I-beam inserts molded into the rubber. These inserts confinethe rubber within the packer and against the pipe thuspreventing extrusion of the sealing element. During seal offon small diameter pipe, the inserts move radially inward tocontact. On large diameter pipe the inserts are displacedinto the front packer. Application of load by the BOPoperator squeezes the sealing element within the confines ofthe inserts and the pipe O.D. This action establishes a steelcontained sealing element. A key feature is automaticadaptation to the pipe size as the ram closes and seals off.

LARGE VOLUME OFFEEDABLE RUBBER

The ram block upper seal provides a large volume offeedable rubber to deliver a long and dependable servicelife. The HVR operates inside standard Hydril ram blowoutpreventers and utilizes the standard hydraulic operator. Thisdesign permits interchangeability with fixed size pipe rams,casing rams and/or blind rams at any time.

EXCELLENT COMPATIBILITYThe HVR has excellent compatibility with Hydril's proven

automatic Multiple Position Ram Locking Mechanism (MPL)

and the Manual Lock Model. The automatic MPL ensures apositive mechanical lock at all positions of the variable ram. This means the MPL automatically compensates for thedifferent positions the HVR attains when sealing on differentpipe sizes.

LABORATORY TESTED . . .FIELD PROVEN

The Hydril Variable Ram functional reliability has beenproven by extensive field use and testing. HVR field testshave been conducted on wells operated by major oilcompanies. Tests include fatigue testing, which simulatedover a year and a half of service by numerous cyclicoperations and pressure tests of the ram packers.

Ram BOP sizes and applicable HVR seal off ranges arelisted below.

HYDRIL 2714 HYDRIL

Hydril MSP™ Diverters/Blowout Preventers Hydril Variable Ram

HVR FRONT PACKERS

2-3/8"-2-7/8" 3117555

13-5/8"-5,000

13-5/8"-10,000

13-5/8"-15,000

18-3/4"-5,000 Conventional

18-3/4"-5,000Compact

18-3/4"-10,000

18-3/4"-15,000

20-3/4"-3,000

VARIABLE RAM ASSEMBLIESRam BOP Size Seal Off Range Part Number

7-1/16"-3,000/5,000Sentry

2-7/8"-5" 31189353-1/2"-5-1/2" 3104815

3-1/2"-6" 31120854-1/2"-7" 31120832-7/8"-5" 3118954

3-1/2"-5-1/2" 31048173-1/2"-6" 3104348

5"-7" 31176133-1/2"-5" 3112535

5"-7" 31125362-7/8"-5" 31122044-1/2"-7" 3112205

2-7/8"-5 1/2” 31173413-1/2"-5 1/2" 3118836

4-1/2"-7" 31173423-1/2"-5 1/2" 3118836

4-1/2"-7" 31173423-1/2"-5-1/2" 3116833

5"-7" 31168364-1/2"-7" 31188442-7/8"-5" 31122044-1/2"-7" 3112205

21-1/4"-2,000/5,000 2-7/8"-5" 311220421-1/4"-2,000/5,000 4-1/2"-7" 3112205

HVR RAM ASSEMBLY

HYDRIL MSP-2000 PSIThe MSP Annular Blowout Preventer is applicable to subseaor surface installations requiring a 2000 psi universalblowout preventer. As proven by its many field installations,it will deliver long, dependable service life. This BOP willseal off drill pipe, kelly, tool joints or tubing and wireline orcompletely shut off the open hole to full rated pressure.The following outstanding features of the MSP BOP make

it qualified to meet the industry's need for simple and reliableblowout protection. A helicopter lift model of the MSP21-1/4–2000 is also available.The Screwed Head Design of the MSP BOP is a simple,

efficient, and strong method of connecting the head to thebody for safe operation with no loose parts to be lost downthe hole or overboard.The Latched Head Design which is optional on the MSP

21-1/4–2000 BOP provides fast, positive access to thepacking unit and seals for minimum maintenance time.Only Two Moving Parts (piston and packing unit) on the

Hydril Annular BOP mean few areas are subjected to wear.The BOP is thus a safer and more efficient mechanismrequiring less maintenance and less downtime.

Back to Front Feedable Rubber on the Packing Unitenables the packing unit to close and seal on almost anyshape in the drillstring or close off the open bore and to striptool joints under pressure. This safety feature permits confi-dent closure of the BOP at the initial indication of a kick with-out the delay of locating the tool joint.The Conical Bowl Design of the Piston provides a simple

and efficient method of closing the packing unit. With thepiston serving as a sealing surface against the rubberpacking unit, there is no metal-to-metal wear on the sealingsurface and thus longer equipment life results.A Field Replaceable Wear Plate in the BOP Head serves

as an upper non-sealing wear surface for the movement ofthe packing unit, making field repair fast and economical.

HYDRIL MSP 29-1/2-500 PSIThe MSP 29-1/2"-500 psi, developed for use on surfaceinstallations, is a large bore annular type diverter whose 29-1/2" bore permits hole to be drilled full bore with diverter protection. Its large bore permits the setting of large sizesurface casing without removing the diverter. Thus it isalways ready for venting gas flows. Utilizing computerizedfinite element techniques, the original design of the MSP 29-1/2"-500 has been revamped to provide a unit made upof fewer parts to reduce cost. This unit may be ordered foruse in standard service (temperate climates) or for use incold environments such as the North Sea, Siberia, andAlaska where low temperature metallurgy may be required.

This MSP provides an effective means of rerouting the flowof shallow, low-pressure gas. The MSP 29-1/2"-500 can beused either as a diverter or a 500 psi annular BOP.

Only Two Moving Parts (piston and packing unit) on theHydril Annular Diverter mean few surfaces are subjected towear. The Diverter is thus a safer and simpler mechanismrequiring less maintenance and less downtime.

Back to Front Feedable Rubber on the Packing Unitenables the packing unit to close and seal on almost anyshape in the drillstring or close off the open bore and striptool joints under pressure. This safety feature permits confident closure of the MSP-29-1/2"-500 at the initial indica-tion of kick without the delay of locating the tool joint.

The Conical Bowl Design of the Piston provides a simpleand efficient method of closing the packing unit. With thepiston serving as a sealing surface against the rubberpacking unit, there is no metal-to-metal wear on the sealingsurface and thus longer equipment life results.

HYDRIL 1526 HYDRIL

The MSP Diverter/BOP has been developed as a simple,reliable unit for moderate pressure drilling service, remedialwork, and well servicing. It can be used on surface and subsea installations. MSP 21-1/4"-2000 operation requiresboth opening and closing pressure. The MSP 29-1/2"-500requires only closing pressure. Seal off is effected byhydraulic pressure applied to the closing chamber that raises the piston, moving the packing unit radially inwardinto a sealing engagement. Any normal closing unit having aseparate regulator valve for the annular BOP and sufficientaccumulator volume can be used to operate the MSP.

STRIPPINGCylindrical pipe sections can be rotated and standard sizetool joints can be safely stripped though the closed blowoutpreventer packing unit. The pressure applied to the closingchamber should be low enough to allow a slight leakage ofdrilling fluid as the tool joint passes through the closed packing unit. The drilling fluid lubricates and cools the packing unit, reducing wear caused by rotation or strippingof pipe. Overall packing unit life is reduced when used instripping operations.The operation/maintenance manual for the specific MSPmodel provides specifications and functional guidelines.

OPERATION AS A DIVERTERWhen using the MSP as a Diverter during top hole drilling,the primary purpose is to divert well flows away from the rigand personnel. This application avoids shutting in the well,but instead permits routing of the f low to a safe distance on the down wind side of the rig.In this application, the MSP is attached directly to the drive

or conductor pipe. Vent lines typically are installed directlybelow the diverter. The lines should be sized in accordancewith API standards to prevent excessive well bore backpressure buildup. This may be accomplished by using aHydril drilling spool between the diverter and the conductorpipe.

The Hydril SXV Spool, described on page 38 of this catalog provides integral venting without external valves.

If valves are to be used in the diverter system, standardsset forth in API RP64 (Recommended Practice for DiverterSystems Equipment and Operation) should be followed.

OPERATION AS A BOPWhen using the MSP as an Annular Blowout Preventer, it

may be hooked up as shown (above, right). In this mode,well control operations can be conducted within the MSP'sworking pressure range

In either mode, pressure applied to the closing chamberraises the piston closing the packing unit to effect the sealbetween the packing unit and pipe. Well pressure or testpressure also acts on the MSP 21-1/4"-2000 piston belowthe sealed off packing unit and further increases the closingforce acting on the packing unit. The MSP 29-1/2"-500 isnot wellbore assisted.

Operation of the MSP™ Diverter/BOP

FLOW LINE

BELL NIPPLE

MSP

CLOSE OPEN

VENT LINE DRILLING

SPOOL

DRIVE OR

CONDUCTOR PIPE

FULL OPENING VALVE (AUTOMATICALLY OPENS

BEFORE DIVERTER IS CLOSED)DRIVE

OR CONDUCTOR

PIPE

MSP

FLOW LINE

BELL NIPPLE

HYDRAULIC POWER FLUID

SUPPLY


SUPPLY

MSP HOOKED UP AS DIVERTER MSP HOOKED UP AS BOP

Ram Sizes and StylesThese types of rams are available:1. Type: Blind Rams (CSO)-Complete Shut-off; Blind/Shear

Rams; Pipe Rams; Tubing Rams; Casing Rams, VariableRams (HVR's); Single Rams and Single Offset Rams, andDual Offset Rams for multiple completions are alsoavailable. Blind Rams can be provided on all BOPs. Shear Rams may require larger than standardoperator size.

2. Specify location of each set of rams when orderingdouble preventers. Pipe/hanging rams equipped withspecial hardened steel inserts which permit drill pipehangoff are standard for 13-5/8"-15,000, 18-3/4"-10,000,and 18-3/4"-15,000 BOPs and are optional for 13-5/8"-5000 and 10,000, 20-3/4"-3000, 21-1/4"-2000 and 21-1/4"-5000 BOPs.

(C) CENTERLINE DIMENSION (INCHES)

2-1/16 2.781 4.000

2-3/8 3.546 4.000

2-7/8 4.000

3-1/2 5.046

2-1/16 2-3/8 2-7/8 3-1/2

(B) PIPE SIZE DIAMETER (INCHES)

DualOffsetRamCenterDimensions

OPERATOR SIZES MANUAL OR MPL LOCKBOP Bore Size (in.) 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11Pressure Rating (psi) 3000 5000 10,000 15,000 3000 5000 3000 5000 10,000Standard Operator (in.) 5-1/2 5-1/2 7-1/2 10 7-1/2 7-1/2 8-1/2 8-1/2 10Shear Ram Operator (in.) – – 12-3/4 12-3/4 – – 10-3/4 10-3/4 12-3/4BOP Bore Size (in.) 13-5/8 13-5/8 13-5/8 13-5/8 16-3/4 18-3/4 18-3/4 20-3/4 21-1/4 21-1/4Pressure Rating (psi) 3000 5000 10,000 15,000 10,000 10,000 15,000 3000 2000 5000Standard Operator (in.) 10 10 14-1/4 14-1/4 14-1/4 14-1/4 15-1/2 10 10 14-1/4Shear Ram Operator (in.) 14-1/4 14-1/4 14-1/4 14-1/4▼ 14-1/4 14-1/4 15-1/2▼ 14-1/4 14-1/4 14-1/4▼

▼19” and 22” Shear Ram Operators available on special request.

Single Offset Ram Center Dimensions

Ram BOP bore size smaller than 9” centerlineare 1-3/4” (A). Larger Ram bore sizes have a2” centerline (A).

How to use this chart:Locate “A” pipe ram diameter and “B” pipe ram diameter. The square on the chartwhere these diameters meet is the centerline CL (dimension “C”).Example: Dia. “A” Dia. “B” CL

2-3/8” X 2-7/8” = 4.00”

TABLE 1 RAM SIZES FOR HYDRIL BLOWOUT PREVENTERSBoreSize Pipe Size(in.)

BlindShear Blind 1.315 1.660 1.9 2-1/16 2-3/8 2-7/8 3-1/2* 4* 4-1/2* 5* 5-1/2* 5 6-/58 7 7-5/8 8-5/8 9-5/8 10-3/4 13-3/8 16

7-1/16 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

9 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

11 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

13-5/8 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

18-3/4 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

20-3/4 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

21-1/4 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

*Hanging Rams are standard for 13-5/8-15,000, 18-3/4-10,000, 18-3/4-15,000 and are optional for 13-5/8-5000 , 10,000, 20-3/4-3000, 21-1/4-2000, and 21-1/4-5000.


HYDRIL 2516 HYDRIL

PARTS AND ACCESSORIES FOR HYDRIL TYPE MSP-2000 BOPS

▼ Older model BOPs have welded sleeve field replacement kit available on request. Field welding is not recommended.* Three parts in Seal Kit❍ Recommended Spares for One Year Foreign Service, quantity 1 each.

7-1/16- 9- 11- 21-1/4- 21-1/4- 7-1/16- 9- 11- 21-1/4- 21-1/4-2000 2000 2000 2000 2000 2000 2000 2000 2000 2000

Item Screwed Screwed Screwed Screwed Latched Item Screwed Screwed Screwed Screwed LatchedNo. Part Name Head Head Head Head Head No. Part Name Head Head Head Head Head

Standard Assembly 1 1 1 1 1 1 *21 Non extrusion Washer – – – – 20 –1 Preventer Head 1 1 1 1 1 1 *22 O-Ring, Jaw Operating Screw – – – – 20 –2 Pipe Plug Piston Indicator 1 1 1 1 1 1 23 Relief Fitting – – – – 20 –3 Lock Collar 1 1 1 1 – 1 *24 Head O-Ring – – – – 1 –4 Head Lock Screw 1 1 1 1 – 1 *25 Double U-Seal, Lower – – – – – 1

*5 Head Gasket 1 1 1 1 1 1 *26 Non extrusion, Lower – – – – – 2❍ 6 Packing Unit *27 Double U-Seal, Inner – – – – – 1

Natural Rubber or 1 1 1 1 1 1 *28 Non extrusion Ring, Lower – – – – – 2or Nitrile Rubber 29 Body Sleeve, Inner ▼1 ▼1 ▼1 ▼1 ▼1 1

*7 U-Seal, Upper 2 2 2 2 2 – 30 Sleeve Clamping Plate – – – – – 18 Piston 1 1 1 1 1 1 *31 Double U-Seal Ring, Upper – – – – – 1

*9 U-Seal, Lower 2 2 2 2 2 – *32 Non extrusion Ring, Upper – – – – – 2*10 U-Seal, Inner 2 2 2 2 2 – 33 Wear Plate 1 1 1 1 1 –11 Body 1 1 1 1 1 1 34 Capscrew, Wear Plate 6 6 6 6 6 –12 Body Sleeve Outer 1 1 1 1 1 1 35 Capscrew Inner Body Sleeve – – – 16 16 –13 Cap Screw Outer Body Sleeve 8 8 8 16 16 16 M– Complete Seal Kit – – – – – –

*14 O-Ring, Body Sleeve 1 1 1 1 1 1 ACCESSORIES15 Head Clamp – – – – 4 – Chain Sling Assembly 1 1 1 1 1 116 Head Clamp Screws – – – – 4 – Eyebolts for Piston 2 2 2 2 2 217 Jaws – – – – 20 – Eyebolts for Head 2 2 2 2 2 218 Jaw Operating Screw – – – – 20 – Cap Screw (Hex Head) 4 4 4 4 4 –19 Cap Screw, Jaw Holding – – – – 20 – Protector Plate 1 1 1 1 1 –

*20 Seal, Jaw Holding Capscrew – – – – 20 – Piston Assembly Tool – – – – – 4

21-1/4-2000HL

ScrewedHead

21-1/4-2000HL

ScrewedHead

MPL COMPONENTSThe component parts of the MPL utilize basic mechanismsand proven techniques to achieve reliable and positiveautomatic multiple position locking.

The tail rod is threaded with a fast lead, six path, helicalthread. These threads make three turns per foot.The mating lock nut and clutch assembly screws onto the tail

rod. Tail rod linear motion causes the lock nut to rotate as thepiston moves to close or open the ram.

The clutch assembly permits or prevents lock nut rotation.Preventing lock nut rotation prevents piston motion. The clutchassembly allows unrestrained closing motion. Application ofopening pressure disengages the clutchassembly permittingopening motion.

Incorporated in the MPL is provision for testing the lockingmechanism. Manually operated lockout devices preventopening pressure from disengaging the clutch assembly.Application of opening pressure then simulates opening forcesapplied to the ram thus testing proper functioning of the lock.The lockout device position is visually indicated.

MANUAL LOCKINGThe manual type lock is shown fully locked. The manual lockcan be set after the ram has been hydraulically closed, toensure retention of seal-off. Clockwise rotation of the tail rodlocks the ram and counter-clockwise rotation unlocks it. Theram can also be closed manually, should failure of thehydraulic system occur. When the ram is open, clockwiserotation of the tail rod closes the ram and locks it. The rammust be opened hydraulically after it has been unlocked.

The screw on the manual lock uses a left hand heavy-dutyacme-type thread and is located within the BOP, where it isprotected from weather, corrosion and external damage. Thethread is protected and lubricated by hydraulic operating fluidfor minimum torque requirement.

Setting of the manual lock, after having closed the ramshydraulically, is facilitated by reducing the closing pressure. Donot reduce the closing pressure when hanging off drillpipe onthe ram blocks. Ram seal is ensured by the wellbore pressure.

CLUTCH ASSEMBLY

LOCKOUT DEVICE

Motion of the piston and tailrod during closing or openingthe ram causes the lock nut torotate. The fast lead, six pathhelical thread rotates the nutthree turns per foot of travel.

PREVENTER WITH MANUAL LOCK

HYDRIL 1724 HYDRIL

RAM Locking Systems For Conventional BOP

Hydril Ram Blowout Preventers are available with automaticMultiple-Position Ram Locking. Multiple-Position Locking(MPL) allows the ram to seal off with optimum seal squeezeat every closure. MPL automatically locks and maintains theram closed with the optimum rubber pressure required forseal off in the front packer and upper seal.

Front packer seal wear (on any ram BOP) requires adifferent ram locking position with each closure to ensure aneffective seal off. Multiple-Position Locking is required toensure retention of that seal off position.A mechanical lock is automatically set each time the ram is

closed. Ram closure is accomplished by applying hydraulicpressure to the closing chamber which moves the ram to aseal off position. The locking system maintains the rammechanically locked while seal off is retained even afterreleasing closing pressure. The ram is opened only byapplication of opening pressure which releases the lockingsystem automatically and opens the ram, simultaneously.

HOW MPL WORKSThe figure above shows the ram maintained closed andsealed off by the MPL. Hydraulic closing pressure has beenreleased. The Hydril Ram Blowout Preventer with MPL automatically maintains ram closure and seal off. MPL willmaintain the required rubber pressure in the front packerand upper seal to ensure a seal off of rated working pressure. MPL will maintain the seal off without closing pressure and with the opening forces created by hanging thedrill string on the ram.

Locking and unlocking of the MPL are controlled by aunidirectional clutch mechanism and a lock nut. Theunidirectional clutch mechanism maintains the nut andram in a locked position until the clutch is disengaged byapplication of opening pressure.Hydraulic opening pressure disengages the clutch plates to

permit the lock nut to rotate freely and the ram to open.

Hydril MSP™ Blowout Preventers

Closing Pressure 500 psi Wellbore

12” Pipe 5” Pipe CSO

950 psi 1350 psi 1500 psi

AVERAGE CLOSING PRESSURE (PSI)REQUIRED TO ESTABLISH INITIAL SEAL OFF IN MSP-2000 FOR A SURFACE INSTALLATION

OUTSIDE DIAMETER OF PIPE

BOP Size 5-1/2” 4-1/2” 3-1/2” 2-7/8” 2-3/8” 1.90” 1.65” Complete Shut Off

7-1/16”-2000 – 350 400 *400 500 600 700 1,000

9”-2000 – 400 *500 550 650 750 850 1,050

11”-2000 350 450 *550 650 750 850 850 1,150

21-1/4”-2000 500 *700 600 650 700 800 900 1,100

*Recommended test pipe size for maximum packing unit life.

**WEIGHT (lbs.)

approximate

MSP ENGINEERING DIMENSIONAL DATA

HL

BORE SIZE (inches) 7-1/16 †9 11 *20-3/4 *20-3/4 21-1/4 21-1/4 21-1/4 29-1/2

WORKING PRESSURE (psi) 2000 2000 2000 2000 2000 2000 2000 2000 500

HEAD TYPE SCREWED SCREWED SCREWED SCREWED LATCHED SCREWED LATCHED SCREWED LOCKRING

OLD NOMINAL SIZE 6” 8” 10” 20” 20” 20” 20” 20” 29-1/2”

SHELL TEST PRESSURE Factory Only 4000 4000 4000 3000 3000 3000 3000 3000 800

OPERATING CHAMBER TEST PRESSURE Factory Only 3000 3000 3000 3000 3000 3000 3000 3000 2275

• OPERATING

CHAMBER CLOSING 2.85 4.57 7.43 31.05 31.05 31.05 31.05 31.75 60

VOLUME (Gal.) OPENING 1.98 2.95 5.23 18.93 18.93 18.93 18.93 19.25 –


FULL PISTON STROKE (inches) 4-1/8 5-3/4 6-1/8 11-1/4 11-1/4 11-1/4 11-1/4 11-1/2 13-9/16

BODY DIAMETER (inches) 25-3/8 27-1/2 32-3/4 52-3/4 56-5/8 52-3/4 56-5/8 52-1/2 75

CLEARANCE DIAMETER (inches) 29-/78 32 37-1/4 58-3/4 58-3/4 58-3/4 58-3/4 61-1/4 82.5

FLANGED BOTTOM 25-3/4 30-1/4 31-3/4 3M: 54-1/4 3M: ▲ 52 1/2 52 1/2 48 –

**HEIGHT (inches) STUDDED BOTTOM – – – – – ▲ 46 – –

CIW HUB BOTTOM – – – 3M: 50-1/2 3M: ▲ 51 ▲ 48 –

FLANGED BOTTOM 1850 2450 3520 ▲ ▲ 15100 16320 – 24500

STUDDED BOTTOM – – – – – ▲ 15290 – –

CIW HUB BOTTOM – – – ▲ ▲ 15000 ▲ 12700 –

FLANGED RX-45 RX-49 RX-53 3M: RX-74 3M: RX-74 RX-73 RX-73 – R-95

STANDARD RING GROOVE STUDDED – – – – – ▲ RX-73 – –

CIW HUB – – – 3M: RX-73 3M: RX-73 RX-73 ▲ RX-73 –

* 21-1/4-2000 BOP w/3000 psi Bottom ▲ Available on request. *MSP 29-1/2”-500 Blowout Preventers are furnished with 11/4” NPT Closing Ports. 1-1/2” NPT ports are** With Standard Studded Top Connection rated to working pressure of BOP. available on special request.• 1” NPT Hydraulic Connections are standard, 1-1/4” NPT & 1-1/2” NPT available on request. † Older models have 8-15/16” bore.

HYDRIL OFFERS A CHOICE OFAUTOMATIC MULTIPLE POSITIONLOCKING OR MANUAL LOCKING ON RAM BOPS.

LOW HYDRAULICCLOSING FLUID PRESSURE

LOW HYDRAULICOPENING FLUID PRESSURE

INITIAL CLOSING PRESSURE (PSI)REQUIRED FOR MSP 29-1/2”-500 BOP/DIVERTER

HYDRIL 2318 HYDRIL

STUD BOLTSBolting is in accordance with API 16A. Bolting materialshall be of a quality and strength not less than specifiedby ASTM A-193. Grade B7. Nuts shall be of a qualitynot less than ASTM A-194. Grade 2H.

PARTS LIST AND WEIGHTS–MSP 29-1/2"-500 DIVERTER

Approx.Item No. Net WeightNo. Part Name Req'd. Lbs.

– Diverter Assembly 1 24.010

1 Head 1 47100

▼2 Packing Unit - NaturalNitrile 1 2145Neoprene

3 Piston 1 3611

**4 Double U-Seal, Outer 1 12.5

**5 U-Seal, Inner 2 2.5

6 Body 1 11.050

**7 U-Seal Piston 2

8 Pipe Plug 2

9 Lock Ring – Square 6 16

10 Lock Ring – Beveled 6 17

11 Hex Head Cap Screw 12 31

12 Lever Assembly – not shown 1

13 Pointer Assembly – not shown 1

14 Cap Screw – not shown 1

15 Washer – not shown 1

16 Pipe Plug – not shown 1

*17 3-Piece Lock Ring Set – not shown 1

18 Welded Body Sleeve – not shown 1 1205

**19 O-Ring, Body Sleeve – not shown 1

20 Non-Extrusion Ring, Outer 2

21 O-Ring, Head 1 1.5

▼– Seal Set – Complete – 11.5

ACCESSORIES

– Lifting Ear – Piston 2 2.25

– Cap Screw 2 .44

– Eyebolt – Head 2 2.25

– Head Assembly Tool 1consisting of:

Beam, Upper 1 100

Beam, Lower 1 100

Pulldown Studs, Long 2 9

Pulldown Studs, Short 2 6.2

Pulldown Nut 4 .81

Washer 4 .10

▼ Recommended Spares for One Year Foreign Service, quantity 1 each.* Older model diverters may have 3-piece lock ring.** Included in Seal Kit.

MSS* RING JOINT FLANGE CONNECTIONS FOR MSP 29-1/2”-500

BOLTS & STUDSMax FLANGE SEAL RING *LENGTH Bolt

FLANGE Nominal Bore Service Size Stud CircleTYPE* Size Dia. Pressure O.D. Thickness Pitch Dia. API No. Thread Bolts Studs Dia.

Inches Inches Rating Inches Inches “C” Inches Ring No. Required Form “A" “B” Inches

30”-300 MSS 30” 29 1/2” 720 WOG 43” 4 1/8” 33-3/4” R-95 28 1-3/4”-8 UN 12-7/8” 9-1/2” 39-1/4”

30”-600 MSS 30” 30” 1440 WOG 44-1/2” 5” 33-3/4” R-95 28 2”-8 UN 15-3/4” 10-1/2” 40-1/4”

Manufacturer’s Standardization Society of the Valve and Fitting Industry.

11. Manual Locking utilizes a heavy-duty acme thread tomanually lock the ram in a sealed-off position or to manuallyclose the ram if the hydraulic system is inoperative.12. Fluid Connections and Hydraulic Passages areinternal to the bonnets and body and preclude damageduring moving and handling operations.13. Connector Ring Grooves are stainless steel lined forall connectors (top, bottom and side outlets) for corrosionresistance of the sealing surface.14. Ram Compartment is self-draining.15. Bonnet Seal utilizes field proven material in anintegrated seal design which combines the seal and backupring for reliability and long life. An advanced pressure ener-gized bonnet seal for high pressure BOP’s providing improvedseal integrity and lower bolt torques is also available.16. Piston Rod Mud Seal is a rugged, field-proven,integrally designed lip seal and backup ring retained in thebonnet by a stainless steel spiral lock ring.17. Secondary (Emergency) Piston Rod Packing pro-vides an emergency piston rod seal for use in the event ofprimary seal leakage at a time when repair cannot be imme-diately effected, except in Subsea BOPs.18. A Weephole to atmosphere isolates wellbore pressure,indicates when seal is achieved and possible leakage in theprimary seat. (Shown out of position.)

19. Piston Seals are of a lip-type design and are pressure-energized to provide a reliable seal of the piston to form theoperating chambers of the BOP.20. Side Outlets for choke/kill lines are available on alldrilling ram models. Two outlets, one on each side, may beplaced below each ram. In single and double configurations,outlets may be placed below the upper and lower ram,below the bottom ram only, or below the top ram only,therefore providing great versatility in stack design.21. Single and Double Configurations are available witha choice of American Petroleum Institute (API) flanged,studded or clamp hub connections. This allows for the mosteconomical use of space for operation and service. (Notshown.)22. Bonnet Bolts are sized for easy torquing and arrangedfor reliable seal between bonnet and body. This preventsexcessive distortion during high pressure seal off. (SeeTorque Chart on page 35.)23. Bonnet Bolt Retainers keep the bonnet bolts in thebonnet while servicing the BOP.24. Guide Rods align ram with bonnet compartment,preventing damage to the ram, piston rod or bonnets whileretracting the rams.25. Ram Seal Off is retained by wellbore pressure. Closingforces are not required to retain an established ram seal off.

1. Ram Body Casting

20. Side Outlets for Choke/Kill

14. Slopped Ram Compartment

15. Bonnet Seal

16. Piston Rod Mud Seal18. A Weephole

19. Piston Seals

7. ReplaceableCylinder Liner

10. Multiple-PositionLocking (MLP)

8. Piston and Piston Rod Assembly

13. Connector Ring Grooves

2. Ram Assembly

22. Bonnet Bolts

3. Field ReplaceableSeal Seat

18-3/4"-10,000 psi Ram BOPAutomatic Multiple Position Lock

(MPL)illustrated

HYDRIL 1922 HYDRIL

1. The Ram Body has controlled and predictable structuralhardness and strength throughout the pressure vessel.Hydril pressure vessel material has equal strength along allaxes to provide reliable strength and resistance to sulfidestress cracking in hydrogen sulfide service. These materialshave high impact strength for low temperature service.Advanced design techniques such as Finite Element Methodof Structural Analysis give a highly reliable BOP with thedesired safety factors.2. The Ram Assembly provides reliable seal off of thewellbore for security and safety. The Ram accommodates alarge volume of feedable rubber in the front packer andupper seal for long service life.3. The Field Replaceable Seal Seat provides a smoothsealing surface for the ram upper seal. The seal seat utilizesspecially selected and performance effective materials formaximum service life. The field replaceable seal seateliminates shop welding, stress relieving, and machining forrepair, thus reducing downtime and direct repair costs.4. Hinged Bonnets swing completely clear of overheadrestrictions (such as another BOP) and provide easy accessfor rapid ram change to reduce downtime.

5. Load Hinges separate from the fluid hinge and areequipped with self-lubricated bearings to support the full weightof the bonnet for quick and easy opening of the bonnet.6. Fluid Hinges, separate from the load hinges, connect thecontrol fluid passages between the body and bonnets. Thisarrangement provides a reliable hydraulic seal and permitsfull pressure testing and ram operation with the bonnetsopen. The fluid hinges and bonnet hinges contain all theseals necessary for this function and may be removedrapidly for simple, economical repair.7. Replaceable Cylinder Liner has a corrosion and wearresistant bore for reliable piston operation. The cylinder lineris easily f ield replaceable or repairable for reducedmaintenance cost and downtime.8. Piston and Piston Rod Assembly are one piece forstrength and reliability in closing and opening the ram whichresults in a secure operating assembly.9. Choice of Ram Locks – Automatic Multiple-PositionLocking (MPL) or Manual Locking is available on RamBOPs.10. Multiple-Position Locking (MPL) utilizes a reliablehydraulically-actuated mechanical clutch mechanism toautomatically lock the rams in a seal off position.

Outstanding Features Mean Greater Reliability,Longer Service Life, Easier Maintenance

Hydril "LL" Long-Life Packing Units

OUTLASTS OTHER REPLACEMENT UNITS 5-TO-1The Long Life "LL" Packing Unit has been specificallydesigned and tested to provide unsurpassedperformance and durability. In performance tests, itoutlasted other replacement units by a minimum of 5-to-1.The key to this remarkable performance is a revolutionaryasymmetrical insert design which gives the unit dynamics forlonger life and reliability.

INDEPENDENT TESTS CONCLUSIVELY SHOW THEHYDRIL LONG LIFE "LL" UNIT FARSURPASSES OTHER REPLACEMENT UNITS.The GK 13-5/8"-5000 "LL" packing unit was fatigue testedon 5" drill pipe at full working pressure against three othercurrently available replacement packing units for the HydrilGK 13-5/8"-5000 Annular BOP. In this testing, the "LL" Unitoutlasted the other units by a minimum of 5-to-1.

GREATER FATIGUE LIFE MEANS LOWEROPERATING COSTS.Based on list prices for other available GK 13-5/8"-5000replacement packing units, you can save 65% to 70% . . . or more . . . on packing unit costs with the Hydril Long Life

"LL" Packing Unit. WIth a life expectancy five times that ofother replacements tested, Hydril's "LL" Packing Unit wasshown to provide 3-1/2 times more closures per dollar.

OPERATING PRINCIPLES CONTINUE WITH LL DESIGNThe Hydril "LL" Packing Unit is designed to provide greaterfatigue life without compromising the stripping performanceand operating characteristics of the Hydril GK and GL BOPs.

HYDRIL TESTED FOR QUALITY ASSURANCEAs with all Hydril packing units, the "LL" unit is factory testedin a blowout preventer at its rated working pressure. So youcan be sure of reliable performance, closure after closure.

START SAVINGWhen it's time for replacement, there's nothing like the origi-nal. Contact the Hydril representative nearest you and askfor the genuine article – the original equipment Hydril "LL"Packing Unit.

*This is a "MD" Packing Unit

HYDRIL "LL" PACKING UNITS ARE AVAILABLE FOR THE FOLLOWING HYDRIL ANNULAR BOPS

BOP Type/Size "LL" Part Number

GK 13-5/8"-5000 psi 3131189

GK 11"-10000 psi 3104633

GL-13-5/8"-5000 psi 3105077

GL-16-3/4"-5000 psi 3105062

*GL 18-3/4"-5000 psi 3112950

1. Ram Body Casting

6. Fluid Hinges

5. Load Hinges

12. Fluid ConnectionsAnd Hydraulic Passages

20. Side Outlets for Choke/Kill24. Ram Block

Guide Rods14. Sloped Ram Compartment


11. Manual Locking

7. Replaceable Cylinder Liner19. Piston Seals

3. Field Replaceable Seal Seat

22. Bonnet Bolts

17. Secondary(Emergency)Piston Rod Packing


13-5/8"-10,000 psi Ram BOPManual Lock illustrated

2. Ram Assembly

15. Bonnet Seal

HYDRIL 2120 HYDRIL

One of the most important features of Hydril AnnularBlowout Preventers is the packing unit. These reliable unitsare manufactured by Hydril from high-quality rubber materialreinforced with flanged steel segments. Each size packingunit has a large volume of tough, feedable packing materialsufficient to meet most requirements.

The molded-in steel segments have flanges at the top andbottom. These segments anchor the packing unit within theBOP and control rubber extrusion and flow when sealing offwell pressures. Since the rubber is confined and kept undercompression, it is resistant to tears, cuts, and abrasions.In the open position, the inside diameter of the packing unit

is flush with the full bore of the preventer; bits, drill collars, orreamers pass through freely. The packing unit is squeezedinward when closing pressure is applied to the piston. Thebore of the packing unit conforms automatically in size andshape and seals off any part of the drillstring or seals offcompletely if the tools are out of the hole.Hydril manufactures packing units for the annular BOPs at

its own factory. This allows Hydril to maintain rigid qualitycontrol of packing units.

HYDRIL PACKING UNITS –FULLY FACTORY TESTEDEach Hydril packing unit is factory tested in a BOP prior toshipment. The packing unit is tested to 50% of workingpressure on open hole and 100% on pipe. The Certified TestSeal on the packing unit ensures that the unit meets theacceptance requirements based on years of experience anddevelopment in designing blowout preventers for reliablewell control.

SELECTIONBecause of the importance of the packing unit to theoperation of the blowout preventer and to the safety of crewand rig, only genuine Hydril packing units should be used asreplacements for original equipment. All Hydril packing unitsare tested to full rated pressure inside a test BOP at thefactory as part of rigid standard acceptance tests beforebeing furnished to the consumer.

Packing units for Hydril BOPs are manufactured fromcompounded natural rubber or nitrile rubber.Natural Rubber is compounded for drilling with water-base

drilling fluids. Natural rubber can be used at operatingtemperatures between -30°F to 225°F (-35°C to 107°C).When properly applied, the compounded natural rubberpacking unit will usually provide the longest service life. Thisall-black packing unit is identified by a serial number with asuffix "NR".

Nitrile Rubber (a synthetic compound) is for use withoil-base or oil-additive drilling fluids. It provides the bestservice with oil-base muds, when operated at temperaturesbetween 30°F to 180°F (-1°C to 82°C). The nitrile rubberpacking unit is identified by a red color band and a serialnumber with the suffix "NBR".

Seals for Hydril BOPs are manufactured from a specialnitrile rubber material which provides long, trouble-freeservice in sealing against oil, gas, or water.Expected H2S and CO2 service does not affect selection of

packing unit material. H2S and CO2 service will reduce theservice life of rubber products, but the best overall servicelife is obtained by matching the packing unit material with therequirements of the specific drilling fluid.Performance of elastomeric materials can vary significantly,

depending on the nature and extent of exposure to hydrogensulfide. The operator should monitor pressure sealingintegrity frequently to assure no performance degradationhas occurred.

Storage Conditions are important for realizing themaximum life of the packing unit. Packing units should bestored in a cool, dry, dark storage area. Atmosphere, lightand heat accelerate deterioration of rubber goods. It is alsoessential to practice "first-in, first-out" when storing packingunits. Other significant storage factors are covered in theapplicable Operator's Manual.

HOW TO ORDER PACKING UNITSThe following information should be included when orderinga genuine Hydril packing unit replacement:1. BOP Type: GX, GK, GL, MSP, GS, GKS, or RS.2. Bore Size.3. Pressure Rating: 500, 1000, 2000, 3000, 5000, 10,000,

15,000, 20,000 psi.4. Type of Material: NR – Natural Rubber; NBR – Nitrile

Rubber.5. Certifications: API 16A Monogram, other.

Annular BOP Packing Units Ram Blowout Preventers

DESIGNED FOR WORKOVER BLOWOUT PREVENTIONThe Sentry™ blowout preventor is a ram product designed tomeet the special needs of workover operations. It is shorter andlighter than Hydril’s standard BOP’s, but doesn’t sacrifice any of Hydril’s traditional strength and reliability.

There is a Hydril ram-type BOP to meet most operationalrequirements on surface or subsea. Hydril BOPs provide quick, positive closure with simple controls, to keep drilling fluids in the hole when normal orabnormal pressures occur.

• Long life is assured through the use of quality materials and workmanship. Fieldreplaceable seal seats and hinged bonnets provide easy access for ram changes, reducing downtime.

• Flexibility is built inwith a wide selectionof options, includingautomatic or manualram locking, blind, variable, pipe and shearrams, and a choice of positioningfor choke/kill line outlets.

• Preventer integrity is preserved in moving and installa-tion as well as operation in hostile environments because

fluid connections are internal to bonnets.

• Safety and reliability are assuredbecause all Hydril ram BOPs

meet the current revision of NACE.Hydril is alsolicensed to

manufacture to APISpecification 16A, and

its preventers have beencertified to all applicable standards, including DNV,ABS and Lloyds of London.

SIZES AND PRESSURE RATINGS OF HYDRIL RAM BOPS

7 1/16 ● ● ● ●

9 ● ●

11 ● ● ● ●

13 5/8 ● ● ● ●

18 3/4 ● ● ●

20 3/4 ●

21 1/4 ● ●

Bore Sizes(inches)

Working Pressure Ratings (psi)2,000 3,000 5,000 10,000 15,000 20,000

Hydril Compact RAM Type Blowout Preventer

CutawayDrawing ShowingHow Rubber isMoldedAround Steel Segments

HYDRIL 1922 HYDRIL

1. The Ram Body has controlled and predictable structuralhardness and strength throughout the pressure vessel.Hydril pressure vessel material has equal strength along allaxes to provide reliable strength and resistance to sulfidestress cracking in hydrogen sulfide service. These materialshave high impact strength for low temperature service.Advanced design techniques such as Finite Element Methodof Structural Analysis give a highly reliable BOP with thedesired safety factors.2. The Ram Assembly provides reliable seal off of thewellbore for security and safety. The Ram accommodates alarge volume of feedable rubber in the front packer andupper seal for long service life.3. The Field Replaceable Seal Seat provides a smoothsealing surface for the ram upper seal. The seal seat utilizesspecially selected and performance effective materials formaximum service life. The field replaceable seal seateliminates shop welding, stress relieving, and machining forrepair, thus reducing downtime and direct repair costs.4. Hinged Bonnets swing completely clear of overheadrestrictions (such as another BOP) and provide easy accessfor rapid ram change to reduce downtime.

5. Load Hinges separate from the fluid hinge and areequipped with self-lubricated bearings to support the full weightof the bonnet for quick and easy opening of the bonnet.6. Fluid Hinges, separate from the load hinges, connect thecontrol fluid passages between the body and bonnets. Thisarrangement provides a reliable hydraulic seal and permitsfull pressure testing and ram operation with the bonnetsopen. The fluid hinges and bonnet hinges contain all theseals necessary for this function and may be removedrapidly for simple, economical repair.7. Replaceable Cylinder Liner has a corrosion and wearresistant bore for reliable piston operation. The cylinder lineris easily f ield replaceable or repairable for reducedmaintenance cost and downtime.8. Piston and Piston Rod Assembly are one piece forstrength and reliability in closing and opening the ram whichresults in a secure operating assembly.9. Choice of Ram Locks – Automatic Multiple-PositionLocking (MPL) or Manual Locking is available on RamBOPs.10. Multiple-Position Locking (MPL) utilizes a reliablehydraulically-actuated mechanical clutch mechanism toautomatically lock the rams in a seal off position.

Outstanding Features Mean Greater Reliability,Longer Service Life, Easier Maintenance

Hydril "LL" Long-Life Packing Units

OUTLASTS OTHER REPLACEMENT UNITS 5-TO-1The Long Life "LL" Packing Unit has been specificallydesigned and tested to provide unsurpassedperformance and durability. In performance tests, itoutlasted other replacement units by a minimum of 5-to-1.The key to this remarkable performance is a revolutionaryasymmetrical insert design which gives the unit dynamics forlonger life and reliability.

INDEPENDENT TESTS CONCLUSIVELY SHOW THEHYDRIL LONG LIFE "LL" UNIT FARSURPASSES OTHER REPLACEMENT UNITS.The GK 13-5/8"-5000 "LL" packing unit was fatigue testedon 5" drill pipe at full working pressure against three othercurrently available replacement packing units for the HydrilGK 13-5/8"-5000 Annular BOP. In this testing, the "LL" Unitoutlasted the other units by a minimum of 5-to-1.

GREATER FATIGUE LIFE MEANS LOWEROPERATING COSTS.Based on list prices for other available GK 13-5/8"-5000replacement packing units, you can save 65% to 70% . . . or more . . . on packing unit costs with the Hydril Long Life

"LL" Packing Unit. WIth a life expectancy five times that ofother replacements tested, Hydril's "LL" Packing Unit wasshown to provide 3-1/2 times more closures per dollar.

OPERATING PRINCIPLES CONTINUE WITH LL DESIGNThe Hydril "LL" Packing Unit is designed to provide greaterfatigue life without compromising the stripping performanceand operating characteristics of the Hydril GK and GL BOPs.

HYDRIL TESTED FOR QUALITY ASSURANCEAs with all Hydril packing units, the "LL" unit is factory testedin a blowout preventer at its rated working pressure. So youcan be sure of reliable performance, closure after closure.

START SAVINGWhen it's time for replacement, there's nothing like the origi-nal. Contact the Hydril representative nearest you and askfor the genuine article – the original equipment Hydril "LL"Packing Unit.

*This is a "MD" Packing Unit

HYDRIL "LL" PACKING UNITS ARE AVAILABLE FOR THE FOLLOWING HYDRIL ANNULAR BOPS

BOP Type/Size "LL" Part Number

GK 13-5/8"-5000 psi 3131189

GK 11"-10000 psi 3104633

GL-13-5/8"-5000 psi 3105077

GL-16-3/4"-5000 psi 3105062

*GL 18-3/4"-5000 psi 3112950

1. Ram Body Casting

6. Fluid Hinges

5. Load Hinges

12. Fluid ConnectionsAnd Hydraulic Passages

20. Side Outlets for Choke/Kill24. Ram Block

Guide Rods14. Sloped Ram Compartment


11. Manual Locking

7. Replaceable Cylinder Liner19. Piston Seals

3. Field Replaceable Seal Seat

22. Bonnet Bolts

17. Secondary(Emergency)Piston Rod Packing


13-5/8"-10,000 psi Ram BOPManual Lock illustrated

2. Ram Assembly

15. Bonnet Seal

HYDRIL 2318 HYDRIL

STUD BOLTSBolting is in accordance with API 16A. Bolting materialshall be of a quality and strength not less than specifiedby ASTM A-193. Grade B7. Nuts shall be of a qualitynot less than ASTM A-194. Grade 2H.

PARTS LIST AND WEIGHTS–MSP 29-1/2"-500 DIVERTER

Approx.Item No. Net WeightNo. Part Name Req'd. Lbs.

– Diverter Assembly 1 24.010

1 Head 1 47100

▼2 Packing Unit - NaturalNitrile 1 2145Neoprene

3 Piston 1 3611

**4 Double U-Seal, Outer 1 12.5

**5 U-Seal, Inner 2 2.5

6 Body 1 11.050

**7 U-Seal Piston 2

8 Pipe Plug 2

9 Lock Ring – Square 6 16

10 Lock Ring – Beveled 6 17

11 Hex Head Cap Screw 12 31

12 Lever Assembly – not shown 1

13 Pointer Assembly – not shown 1

14 Cap Screw – not shown 1

15 Washer – not shown 1

16 Pipe Plug – not shown 1

*17 3-Piece Lock Ring Set – not shown 1

18 Welded Body Sleeve – not shown 1 1205

**19 O-Ring, Body Sleeve – not shown 1

20 Non-Extrusion Ring, Outer 2

21 O-Ring, Head 1 1.5

▼– Seal Set – Complete – 11.5

ACCESSORIES

– Lifting Ear – Piston 2 2.25

– Cap Screw 2 .44

– Eyebolt – Head 2 2.25

– Head Assembly Tool 1consisting of:

Beam, Upper 1 100

Beam, Lower 1 100

Pulldown Studs, Long 2 9

Pulldown Studs, Short 2 6.2

Pulldown Nut 4 .81

Washer 4 .10

▼ Recommended Spares for One Year Foreign Service, quantity 1 each.* Older model diverters may have 3-piece lock ring.** Included in Seal Kit.

MSS* RING JOINT FLANGE CONNECTIONS FOR MSP 29-1/2”-500

BOLTS & STUDSMax FLANGE SEAL RING *LENGTH Bolt

FLANGE Nominal Bore Service Size Stud CircleTYPE* Size Dia. Pressure O.D. Thickness Pitch Dia. API No. Thread Bolts Studs Dia.

Inches Inches Rating Inches Inches “C” Inches Ring No. Required Form “A" “B” Inches

30”-300 MSS 30” 29 1/2” 720 WOG 43” 4 1/8” 33-3/4” R-95 28 1-3/4”-8 UN 12-7/8” 9-1/2” 39-1/4”

30”-600 MSS 30” 30” 1440 WOG 44-1/2” 5” 33-3/4” R-95 28 2”-8 UN 15-3/4” 10-1/2” 40-1/4”

Manufacturer’s Standardization Society of the Valve and Fitting Industry.

11. Manual Locking utilizes a heavy-duty acme thread tomanually lock the ram in a sealed-off position or to manuallyclose the ram if the hydraulic system is inoperative.12. Fluid Connections and Hydraulic Passages areinternal to the bonnets and body and preclude damageduring moving and handling operations.13. Connector Ring Grooves are stainless steel lined forall connectors (top, bottom and side outlets) for corrosionresistance of the sealing surface.14. Ram Compartment is self-draining.15. Bonnet Seal utilizes field proven material in anintegrated seal design which combines the seal and backupring for reliability and long life. An advanced pressure ener-gized bonnet seal for high pressure BOP’s providing improvedseal integrity and lower bolt torques is also available.16. Piston Rod Mud Seal is a rugged, field-proven,integrally designed lip seal and backup ring retained in thebonnet by a stainless steel spiral lock ring.17. Secondary (Emergency) Piston Rod Packing pro-vides an emergency piston rod seal for use in the event ofprimary seal leakage at a time when repair cannot be imme-diately effected, except in Subsea BOPs.18. A Weephole to atmosphere isolates wellbore pressure,indicates when seal is achieved and possible leakage in theprimary seat. (Shown out of position.)

19. Piston Seals are of a lip-type design and are pressure-energized to provide a reliable seal of the piston to form theoperating chambers of the BOP.20. Side Outlets for choke/kill lines are available on alldrilling ram models. Two outlets, one on each side, may beplaced below each ram. In single and double configurations,outlets may be placed below the upper and lower ram,below the bottom ram only, or below the top ram only,therefore providing great versatility in stack design.21. Single and Double Configurations are available witha choice of American Petroleum Institute (API) flanged,studded or clamp hub connections. This allows for the mosteconomical use of space for operation and service. (Notshown.)22. Bonnet Bolts are sized for easy torquing and arrangedfor reliable seal between bonnet and body. This preventsexcessive distortion during high pressure seal off. (SeeTorque Chart on page 35.)23. Bonnet Bolt Retainers keep the bonnet bolts in thebonnet while servicing the BOP.24. Guide Rods align ram with bonnet compartment,preventing damage to the ram, piston rod or bonnets whileretracting the rams.25. Ram Seal Off is retained by wellbore pressure. Closingforces are not required to retain an established ram seal off.

1. Ram Body Casting

20. Side Outlets for Choke/Kill

14. Slopped Ram Compartment

15. Bonnet Seal


19. Piston Seals

7. ReplaceableCylinder Liner

10. Multiple-PositionLocking (MLP)

8. Piston and Piston Rod Assembly


2. Ram Assembly

22. Bonnet Bolts

3. Field ReplaceableSeal Seat

18-3/4"-10,000 psi Ram BOPAutomatic Multiple Position Lock

(MPL)illustrated

HYDRIL 1724 HYDRIL

RAM Locking Systems For Conventional BOP

Hydril Ram Blowout Preventers are available with automaticMultiple-Position Ram Locking. Multiple-Position Locking(MPL) allows the ram to seal off with optimum seal squeezeat every closure. MPL automatically locks and maintains theram closed with the optimum rubber pressure required forseal off in the front packer and upper seal.

Front packer seal wear (on any ram BOP) requires adifferent ram locking position with each closure to ensure aneffective seal off. Multiple-Position Locking is required toensure retention of that seal off position.A mechanical lock is automatically set each time the ram is

closed. Ram closure is accomplished by applying hydraulicpressure to the closing chamber which moves the ram to aseal off position. The locking system maintains the rammechanically locked while seal off is retained even afterreleasing closing pressure. The ram is opened only byapplication of opening pressure which releases the lockingsystem automatically and opens the ram, simultaneously.

HOW MPL WORKSThe figure above shows the ram maintained closed andsealed off by the MPL. Hydraulic closing pressure has beenreleased. The Hydril Ram Blowout Preventer with MPL automatically maintains ram closure and seal off. MPL willmaintain the required rubber pressure in the front packerand upper seal to ensure a seal off of rated working pressure. MPL will maintain the seal off without closing pressure and with the opening forces created by hanging thedrill string on the ram.

Locking and unlocking of the MPL are controlled by aunidirectional clutch mechanism and a lock nut. Theunidirectional clutch mechanism maintains the nut andram in a locked position until the clutch is disengaged byapplication of opening pressure.Hydraulic opening pressure disengages the clutch plates to

permit the lock nut to rotate freely and the ram to open.

Hydril MSP™ Blowout Preventers

Closing Pressure 500 psi Wellbore

12” Pipe 5” Pipe CSO

950 psi 1350 psi 1500 psi

AVERAGE CLOSING PRESSURE (PSI)REQUIRED TO ESTABLISH INITIAL SEAL OFF IN MSP-2000 FOR A SURFACE INSTALLATION

OUTSIDE DIAMETER OF PIPE

BOP Size 5-1/2” 4-1/2” 3-1/2” 2-7/8” 2-3/8” 1.90” 1.65” Complete Shut Off

7-1/16”-2000 – 350 400 *400 500 600 700 1,000

9”-2000 – 400 *500 550 650 750 850 1,050

11”-2000 350 450 *550 650 750 850 850 1,150

21-1/4”-2000 500 *700 600 650 700 800 900 1,100

*Recommended test pipe size for maximum packing unit life.

**WEIGHT (lbs.)

approximate

MSP ENGINEERING DIMENSIONAL DATA

HL

BORE SIZE (inches) 7-1/16 †9 11 *20-3/4 *20-3/4 21-1/4 21-1/4 21-1/4 29-1/2

WORKING PRESSURE (psi) 2000 2000 2000 2000 2000 2000 2000 2000 500

HEAD TYPE SCREWED SCREWED SCREWED SCREWED LATCHED SCREWED LATCHED SCREWED LOCKRING

OLD NOMINAL SIZE 6” 8” 10” 20” 20” 20” 20” 20” 29-1/2”

SHELL TEST PRESSURE Factory Only 4000 4000 4000 3000 3000 3000 3000 3000 800

OPERATING CHAMBER TEST PRESSURE Factory Only 3000 3000 3000 3000 3000 3000 3000 3000 2275

• OPERATING

CHAMBER CLOSING 2.85 4.57 7.43 31.05 31.05 31.05 31.05 31.75 60

VOLUME (Gal.) OPENING 1.98 2.95 5.23 18.93 18.93 18.93 18.93 19.25 –


FULL PISTON STROKE (inches) 4-1/8 5-3/4 6-1/8 11-1/4 11-1/4 11-1/4 11-1/4 11-1/2 13-9/16

BODY DIAMETER (inches) 25-3/8 27-1/2 32-3/4 52-3/4 56-5/8 52-3/4 56-5/8 52-1/2 75

CLEARANCE DIAMETER (inches) 29-/78 32 37-1/4 58-3/4 58-3/4 58-3/4 58-3/4 61-1/4 82.5

FLANGED BOTTOM 25-3/4 30-1/4 31-3/4 3M: 54-1/4 3M: ▲ 52 1/2 52 1/2 48 –

**HEIGHT (inches) STUDDED BOTTOM – – – – – ▲ 46 – –

CIW HUB BOTTOM – – – 3M: 50-1/2 3M: ▲ 51 ▲ 48 –

FLANGED BOTTOM 1850 2450 3520 ▲ ▲ 15100 16320 – 24500

STUDDED BOTTOM – – – – – ▲ 15290 – –

CIW HUB BOTTOM – – – ▲ ▲ 15000 ▲ 12700 –

FLANGED RX-45 RX-49 RX-53 3M: RX-74 3M: RX-74 RX-73 RX-73 – R-95

STANDARD RING GROOVE STUDDED – – – – – ▲ RX-73 – –

CIW HUB – – – 3M: RX-73 3M: RX-73 RX-73 ▲ RX-73 –

* 21-1/4-2000 BOP w/3000 psi Bottom ▲ Available on request. *MSP 29-1/2”-500 Blowout Preventers are furnished with 11/4” NPT Closing Ports. 1-1/2” NPT ports are** With Standard Studded Top Connection rated to working pressure of BOP. available on special request.• 1” NPT Hydraulic Connections are standard, 1-1/4” NPT & 1-1/2” NPT available on request. † Older models have 8-15/16” bore.

HYDRIL OFFERS A CHOICE OFAUTOMATIC MULTIPLE POSITIONLOCKING OR MANUAL LOCKING ON RAM BOPS.

LOW HYDRAULICCLOSING FLUID PRESSURE

LOW HYDRAULICOPENING FLUID PRESSURE

INITIAL CLOSING PRESSURE (PSI)REQUIRED FOR MSP 29-1/2”-500 BOP/DIVERTER

HYDRIL 2516 HYDRIL

PARTS AND ACCESSORIES FOR HYDRIL TYPE MSP-2000 BOPS

▼ Older model BOPs have welded sleeve field replacement kit available on request. Field welding is not recommended.* Three parts in Seal Kit❍ Recommended Spares for One Year Foreign Service, quantity 1 each.

7-1/16- 9- 11- 21-1/4- 21-1/4- 7-1/16- 9- 11- 21-1/4- 21-1/4-2000 2000 2000 2000 2000 2000 2000 2000 2000 2000

Item Screwed Screwed Screwed Screwed Latched Item Screwed Screwed Screwed Screwed LatchedNo. Part Name Head Head Head Head Head No. Part Name Head Head Head Head Head

Standard Assembly 1 1 1 1 1 1 *21 Non extrusion Washer – – – – 20 –1 Preventer Head 1 1 1 1 1 1 *22 O-Ring, Jaw Operating Screw – – – – 20 –2 Pipe Plug Piston Indicator 1 1 1 1 1 1 23 Relief Fitting – – – – 20 –3 Lock Collar 1 1 1 1 – 1 *24 Head O-Ring – – – – 1 –4 Head Lock Screw 1 1 1 1 – 1 *25 Double U-Seal, Lower – – – – – 1

*5 Head Gasket 1 1 1 1 1 1 *26 Non extrusion, Lower – – – – – 2❍ 6 Packing Unit *27 Double U-Seal, Inner – – – – – 1

Natural Rubber or 1 1 1 1 1 1 *28 Non extrusion Ring, Lower – – – – – 2or Nitrile Rubber 29 Body Sleeve, Inner ▼1 ▼1 ▼1 ▼1 ▼1 1

*7 U-Seal, Upper 2 2 2 2 2 – 30 Sleeve Clamping Plate – – – – – 18 Piston 1 1 1 1 1 1 *31 Double U-Seal Ring, Upper – – – – – 1

*9 U-Seal, Lower 2 2 2 2 2 – *32 Non extrusion Ring, Upper – – – – – 2*10 U-Seal, Inner 2 2 2 2 2 – 33 Wear Plate 1 1 1 1 1 –11 Body 1 1 1 1 1 1 34 Capscrew, Wear Plate 6 6 6 6 6 –12 Body Sleeve Outer 1 1 1 1 1 1 35 Capscrew Inner Body Sleeve – – – 16 16 –13 Cap Screw Outer Body Sleeve 8 8 8 16 16 16 M– Complete Seal Kit – – – – – –

*14 O-Ring, Body Sleeve 1 1 1 1 1 1 ACCESSORIES15 Head Clamp – – – – 4 – Chain Sling Assembly 1 1 1 1 1 116 Head Clamp Screws – – – – 4 – Eyebolts for Piston 2 2 2 2 2 217 Jaws – – – – 20 – Eyebolts for Head 2 2 2 2 2 218 Jaw Operating Screw – – – – 20 – Cap Screw (Hex Head) 4 4 4 4 4 –19 Cap Screw, Jaw Holding – – – – 20 – Protector Plate 1 1 1 1 1 –

*20 Seal, Jaw Holding Capscrew – – – – 20 – Piston Assembly Tool – – – – – 4

21-1/4-2000HL

ScrewedHead

21-1/4-2000HL

ScrewedHead

MPL COMPONENTSThe component parts of the MPL utilize basic mechanismsand proven techniques to achieve reliable and positiveautomatic multiple position locking.

The tail rod is threaded with a fast lead, six path, helicalthread. These threads make three turns per foot.The mating lock nut and clutch assembly screws onto the tail

rod. Tail rod linear motion causes the lock nut to rotate as thepiston moves to close or open the ram.

The clutch assembly permits or prevents lock nut rotation.Preventing lock nut rotation prevents piston motion. The clutchassembly allows unrestrained closing motion. Application ofopening pressure disengages the clutchassembly permittingopening motion.

Incorporated in the MPL is provision for testing the lockingmechanism. Manually operated lockout devices preventopening pressure from disengaging the clutch assembly.Application of opening pressure then simulates opening forcesapplied to the ram thus testing proper functioning of the lock.The lockout device position is visually indicated.

MANUAL LOCKINGThe manual type lock is shown fully locked. The manual lockcan be set after the ram has been hydraulically closed, toensure retention of seal-off. Clockwise rotation of the tail rodlocks the ram and counter-clockwise rotation unlocks it. Theram can also be closed manually, should failure of thehydraulic system occur. When the ram is open, clockwiserotation of the tail rod closes the ram and locks it. The rammust be opened hydraulically after it has been unlocked.

The screw on the manual lock uses a left hand heavy-dutyacme-type thread and is located within the BOP, where it isprotected from weather, corrosion and external damage. Thethread is protected and lubricated by hydraulic operating fluidfor minimum torque requirement.

Setting of the manual lock, after having closed the ramshydraulically, is facilitated by reducing the closing pressure. Donot reduce the closing pressure when hanging off drillpipe onthe ram blocks. Ram seal is ensured by the wellbore pressure.

CLUTCH ASSEMBLY

LOCKOUT DEVICE

Motion of the piston and tailrod during closing or openingthe ram causes the lock nut torotate. The fast lead, six pathhelical thread rotates the nutthree turns per foot of travel.

PREVENTER WITH MANUAL LOCK

HYDRIL 1526 HYDRIL

The MSP Diverter/BOP has been developed as a simple,reliable unit for moderate pressure drilling service, remedialwork, and well servicing. It can be used on surface and subsea installations. MSP 21-1/4"-2000 operation requiresboth opening and closing pressure. The MSP 29-1/2"-500requires only closing pressure. Seal off is effected byhydraulic pressure applied to the closing chamber that raises the piston, moving the packing unit radially inwardinto a sealing engagement. Any normal closing unit having aseparate regulator valve for the annular BOP and sufficientaccumulator volume can be used to operate the MSP.

STRIPPINGCylindrical pipe sections can be rotated and standard sizetool joints can be safely stripped though the closed blowoutpreventer packing unit. The pressure applied to the closingchamber should be low enough to allow a slight leakage ofdrilling fluid as the tool joint passes through the closed packing unit. The drilling fluid lubricates and cools the packing unit, reducing wear caused by rotation or strippingof pipe. Overall packing unit life is reduced when used instripping operations.The operation/maintenance manual for the specific MSPmodel provides specifications and functional guidelines.

OPERATION AS A DIVERTERWhen using the MSP as a Diverter during top hole drilling,the primary purpose is to divert well flows away from the rigand personnel. This application avoids shutting in the well,but instead permits routing of the f low to a safe distance on the down wind side of the rig.In this application, the MSP is attached directly to the drive

or conductor pipe. Vent lines typically are installed directlybelow the diverter. The lines should be sized in accordancewith API standards to prevent excessive well bore backpressure buildup. This may be accomplished by using aHydril drilling spool between the diverter and the conductorpipe.

The Hydril SXV Spool, described on page 38 of this catalog provides integral venting without external valves.

If valves are to be used in the diverter system, standardsset forth in API RP64 (Recommended Practice for DiverterSystems Equipment and Operation) should be followed.

OPERATION AS A BOPWhen using the MSP as an Annular Blowout Preventer, it

may be hooked up as shown (above, right). In this mode,well control operations can be conducted within the MSP'sworking pressure range

In either mode, pressure applied to the closing chamberraises the piston closing the packing unit to effect the sealbetween the packing unit and pipe. Well pressure or testpressure also acts on the MSP 21-1/4"-2000 piston belowthe sealed off packing unit and further increases the closingforce acting on the packing unit. The MSP 29-1/2"-500 isnot wellbore assisted.

Operation of the MSP™ Diverter/BOP

FLOW LINE

BELL NIPPLE

MSP

CLOSE OPEN

VENT LINE DRILLING

SPOOL

DRIVE OR

CONDUCTOR PIPE

FULL OPENING VALVE (AUTOMATICALLY OPENS

BEFORE DIVERTER IS CLOSED)DRIVE

OR CONDUCTOR

PIPE

MSP

FLOW LINE

BELL NIPPLE


SUPPLY


SUPPLY


Ram Sizes and StylesThese types of rams are available:1. Type: Blind Rams (CSO)-Complete Shut-off; Blind/Shear

Rams; Pipe Rams; Tubing Rams; Casing Rams, VariableRams (HVR's); Single Rams and Single Offset Rams, andDual Offset Rams for multiple completions are alsoavailable. Blind Rams can be provided on all BOPs. Shear Rams may require larger than standardoperator size.

2. Specify location of each set of rams when orderingdouble preventers. Pipe/hanging rams equipped withspecial hardened steel inserts which permit drill pipehangoff are standard for 13-5/8"-15,000, 18-3/4"-10,000,and 18-3/4"-15,000 BOPs and are optional for 13-5/8"-5000 and 10,000, 20-3/4"-3000, 21-1/4"-2000 and 21-1/4"-5000 BOPs.

(C) CENTERLINE DIMENSION (INCHES)

2-1/16 2.781 4.000

2-3/8 3.546 4.000

2-7/8 4.000

3-1/2 5.046

2-1/16 2-3/8 2-7/8 3-1/2

(B) PIPE SIZE DIAMETER (INCHES)

DualOffsetRamCenterDimensions

OPERATOR SIZES MANUAL OR MPL LOCKBOP Bore Size (in.) 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11Pressure Rating (psi) 3000 5000 10,000 15,000 3000 5000 3000 5000 10,000Standard Operator (in.) 5-1/2 5-1/2 7-1/2 10 7-1/2 7-1/2 8-1/2 8-1/2 10Shear Ram Operator (in.) – – 12-3/4 12-3/4 – – 10-3/4 10-3/4 12-3/4BOP Bore Size (in.) 13-5/8 13-5/8 13-5/8 13-5/8 16-3/4 18-3/4 18-3/4 20-3/4 21-1/4 21-1/4Pressure Rating (psi) 3000 5000 10,000 15,000 10,000 10,000 15,000 3000 2000 5000Standard Operator (in.) 10 10 14-1/4 14-1/4 14-1/4 14-1/4 15-1/2 10 10 14-1/4Shear Ram Operator (in.) 14-1/4 14-1/4 14-1/4 14-1/4▼ 14-1/4 14-1/4 15-1/2▼ 14-1/4 14-1/4 14-1/4▼

▼19” and 22” Shear Ram Operators available on special request.

Single Offset Ram Center Dimensions

Ram BOP bore size smaller than 9” centerlineare 1-3/4” (A). Larger Ram bore sizes have a2” centerline (A).

How to use this chart:Locate “A” pipe ram diameter and “B” pipe ram diameter. The square on the chartwhere these diameters meet is the centerline CL (dimension “C”).Example: Dia. “A” Dia. “B” CL

2-3/8” X 2-7/8” = 4.00”

TABLE 1 RAM SIZES FOR HYDRIL BLOWOUT PREVENTERSBoreSize Pipe Size(in.)

BlindShear Blind 1.315 1.660 1.9 2-1/16 2-3/8 2-7/8 3-1/2* 4* 4-1/2* 5* 5-1/2* 5 6-/58 7 7-5/8 8-5/8 9-5/8 10-3/4 13-3/8 16

7-1/16 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

9 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

11 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

13-5/8 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

18-3/4 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

20-3/4 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

21-1/4 ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼ ▼

*Hanging Rams are standard for 13-5/8-15,000, 18-3/4-10,000, 18-3/4-15,000 and are optional for 13-5/8-5000 , 10,000, 20-3/4-3000, 21-1/4-2000, and 21-1/4-5000.


EACH HYDRIL VARIABLE RAM (HVR) IS DESIGNED TO CLOSE AND SEAL ON A RANGE OF PIPE SIZES.

UNIVERSAL SEAL OFFThe HVR gives a universal seal off feature especially

useful on tapered drill strings and drill pipe that does nothave a constant diameter over its length. Two ram BOPswith HVRs can be used on a tapered string to provide abackup for all drill pipe sizes. This application eliminateshaving one pipe ram for small diameter pipe and one forlarge diameter pipe. If a BOP stack is assembled with ablind or blind/shear ram and two sets of Hydril VariableRams 3-1/2"-6" size, the HVRs will seal on the drill pipe from3-1/2" to 5-1/2", providing the backup seal off capabilityneeded on a tapered string. The HVR is therefore ideallysuited for subsea use by expanding the seal off capability ofone ram assembly within a BOP.

INTERLOCKING I-BEAM INSERTSThe HVR has a variable front packer with interlocking

I-beam inserts molded into the rubber. These inserts confinethe rubber within the packer and against the pipe thuspreventing extrusion of the sealing element. During seal offon small diameter pipe, the inserts move radially inward tocontact. On large diameter pipe the inserts are displacedinto the front packer. Application of load by the BOPoperator squeezes the sealing element within the confines ofthe inserts and the pipe O.D. This action establishes a steelcontained sealing element. A key feature is automaticadaptation to the pipe size as the ram closes and seals off.

LARGE VOLUME OFFEEDABLE RUBBER

The ram block upper seal provides a large volume offeedable rubber to deliver a long and dependable servicelife. The HVR operates inside standard Hydril ram blowoutpreventers and utilizes the standard hydraulic operator. Thisdesign permits interchangeability with fixed size pipe rams,casing rams and/or blind rams at any time.

EXCELLENT COMPATIBILITYThe HVR has excellent compatibility with Hydril's proven

automatic Multiple Position Ram Locking Mechanism (MPL)

and the Manual Lock Model. The automatic MPL ensures apositive mechanical lock at all positions of the variable ram. This means the MPL automatically compensates for thedifferent positions the HVR attains when sealing on differentpipe sizes.

LABORATORY TESTED . . .FIELD PROVEN

The Hydril Variable Ram functional reliability has beenproven by extensive field use and testing. HVR field testshave been conducted on wells operated by major oilcompanies. Tests include fatigue testing, which simulatedover a year and a half of service by numerous cyclicoperations and pressure tests of the ram packers.

Ram BOP sizes and applicable HVR seal off ranges arelisted below.

HYDRIL 2714 HYDRIL

Hydril MSP™ Diverters/Blowout Preventers Hydril Variable Ram

HVR FRONT PACKERS

2-3/8"-2-7/8" 3117555

13-5/8"-5,000

13-5/8"-10,000

13-5/8"-15,000

18-3/4"-5,000 Conventional

18-3/4"-5,000Compact

18-3/4"-10,000

18-3/4"-15,000

20-3/4"-3,000

VARIABLE RAM ASSEMBLIESRam BOP Size Seal Off Range Part Number

7-1/16"-3,000/5,000Sentry

2-7/8"-5" 31189353-1/2"-5-1/2" 3104815

3-1/2"-6" 31120854-1/2"-7" 31120832-7/8"-5" 3118954

3-1/2"-5-1/2" 31048173-1/2"-6" 3104348

5"-7" 31176133-1/2"-5" 3112535

5"-7" 31125362-7/8"-5" 31122044-1/2"-7" 3112205

2-7/8"-5 1/2” 31173413-1/2"-5 1/2" 3118836

4-1/2"-7" 31173423-1/2"-5 1/2" 3118836

4-1/2"-7" 31173423-1/2"-5-1/2" 3116833

5"-7" 31168364-1/2"-7" 31188442-7/8"-5" 31122044-1/2"-7" 3112205

21-1/4"-2,000/5,000 2-7/8"-5" 311220421-1/4"-2,000/5,000 4-1/2"-7" 3112205

HVR RAM ASSEMBLY

HYDRIL MSP-2000 PSIThe MSP Annular Blowout Preventer is applicable to subseaor surface installations requiring a 2000 psi universalblowout preventer. As proven by its many field installations,it will deliver long, dependable service life. This BOP willseal off drill pipe, kelly, tool joints or tubing and wireline orcompletely shut off the open hole to full rated pressure.The following outstanding features of the MSP BOP make

it qualified to meet the industry's need for simple and reliableblowout protection. A helicopter lift model of the MSP21-1/4–2000 is also available.The Screwed Head Design of the MSP BOP is a simple,

efficient, and strong method of connecting the head to thebody for safe operation with no loose parts to be lost downthe hole or overboard.The Latched Head Design which is optional on the MSP

21-1/4–2000 BOP provides fast, positive access to thepacking unit and seals for minimum maintenance time.Only Two Moving Parts (piston and packing unit) on the

Hydril Annular BOP mean few areas are subjected to wear.The BOP is thus a safer and more efficient mechanismrequiring less maintenance and less downtime.

Back to Front Feedable Rubber on the Packing Unitenables the packing unit to close and seal on almost anyshape in the drillstring or close off the open bore and to striptool joints under pressure. This safety feature permits confi-dent closure of the BOP at the initial indication of a kick with-out the delay of locating the tool joint.The Conical Bowl Design of the Piston provides a simple

and efficient method of closing the packing unit. With thepiston serving as a sealing surface against the rubberpacking unit, there is no metal-to-metal wear on the sealingsurface and thus longer equipment life results.A Field Replaceable Wear Plate in the BOP Head serves

as an upper non-sealing wear surface for the movement ofthe packing unit, making field repair fast and economical.

HYDRIL MSP 29-1/2-500 PSIThe MSP 29-1/2"-500 psi, developed for use on surfaceinstallations, is a large bore annular type diverter whose 29-1/2" bore permits hole to be drilled full bore with diverter protection. Its large bore permits the setting of large sizesurface casing without removing the diverter. Thus it isalways ready for venting gas flows. Utilizing computerizedfinite element techniques, the original design of the MSP 29-1/2"-500 has been revamped to provide a unit made upof fewer parts to reduce cost. This unit may be ordered foruse in standard service (temperate climates) or for use incold environments such as the North Sea, Siberia, andAlaska where low temperature metallurgy may be required.

This MSP provides an effective means of rerouting the flowof shallow, low-pressure gas. The MSP 29-1/2"-500 can beused either as a diverter or a 500 psi annular BOP.

Only Two Moving Parts (piston and packing unit) on theHydril Annular Diverter mean few surfaces are subjected towear. The Diverter is thus a safer and simpler mechanismrequiring less maintenance and less downtime.

Back to Front Feedable Rubber on the Packing Unitenables the packing unit to close and seal on almost anyshape in the drillstring or close off the open bore and striptool joints under pressure. This safety feature permits confident closure of the MSP-29-1/2"-500 at the initial indica-tion of kick without the delay of locating the tool joint.

The Conical Bowl Design of the Piston provides a simpleand efficient method of closing the packing unit. With thepiston serving as a sealing surface against the rubberpacking unit, there is no metal-to-metal wear on the sealingsurface and thus longer equipment life results.

HYDRIL 1328 HYDRIL

ACCESSORIES FOR HYDRIL GK BLOWOUT PREVENTERSChain Sling Assembly 1 Eyebolts – Piston 2 Eyebolts – Head 2 Protector Plate 1 Protector Plate Screw 4

PARTS LIST – HYDRIL GK BLOWOUT PREVENTERS

GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK- GK-7-1/16 7-1/16 9 9 11 11 11 13-5/8 13-5/8 13-5/8 13-5/8 13-5/8 16-3/4 16-3/4 16-3/4 16-3/43000 5000 3000 5000 3000 5000 5000 3000 3000 5000 5000 5000 2000 3000 5000 5000

Item Screwed Screwed Screwed Screwed Screwed Screwed Latched Screwed Latched Screwed Latched Screwed Screwed Screwed Screwed LatchedNo. Part Name Head Head Head Head Head Head Head Head Head Head Head Head Head Head Head Head

1 Head 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

t2 Packing Unit

Natural, Nitrile or

Neoprene Rubber 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

3 Piston 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

**4 Slotted Body Sleeve 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

5 Body 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

*6 Head Gasket 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

*7 Head Seal – – – – – – 1 – 1 – 1 – – – – 1

*8 U-Seal, Upper 2 2 2 2 2 2 2 2 2 2 2 – 2 2 – –

*9 U-Seal, Middle 2 2 2 2 2 2 2 2 2 2 2 – 2 2 – –

*10 U-Seal, Lower 2 2 2 2 2 2 2 2 2 2 2 – 2 2 – –

*11 Double U-Seal, Upper – – – – – – – – – – – 1 – – 1 1

*12 Non extrusion Ring, Upper – – – – – – – – – – – 2 – – 2 2

*13 Double U-Seal, Middle – – – – – – – – – – – 1 – – 1 1

*14 Non extrusion Ring, Middle – – – – – – – – – – – 2 – – 2 2

*15 Double U-Seal, Lower – – – – – – – – – – – 1 – – 1 1

*16 Non extrusion Ring, Lower – – – – – – – – – – – 2 – – 2 2

17 Pipe Plug, Piston Indicator 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1

18 Capscrew, Slotted Body Sleeve 10 12 10 10 12 12 12 12 12 6 6 6 – 12 7 7

19 Head Lock Screw 1 1 1 1 1 1 – 1 – 1 – 1 1 1 1 –

20 Lock Collar – – – – – – – – – – – 1 – – 1 –

21 Jaw – – – – – – 16 – 16 – 20 – – – – 20

22 Jaw Operating Screw – – – – – – 16 – 16 – 20 – – – – 20

23 Capscrew, Jaw Holding – – – – – – – – – – 20 – – – – 20

*24 Seal, Jaw Holding Capscrew – – – – – – – – – – 20 – – – – 20

*25 Non extrusion Ring, Jaw – – – – – – – – – – 20 – – – – 20

Holding Capscrew

*26 O-Ring, Jaw Operating Screw – – – – – – 16 – 16 – 20 – – – – 20

27 Relief Fitting – – – – – – 1 – 1 – 1 – – – – 1

29 Wear Plate 1 1 1 1 1 1 1 1 1 1 1 – – 1 1 1

30 Cap Screw, Wear Plate 6 6 6 6 6 6 6 6 6 6 6 – – 6 6 6

31 Spacer Sleeve – – – – – – 16 – 16 – – – – – – –

32 Sleeve Screw – – – – – – 16 – 16 – – – – – – –

33 Pipe Plug – – – – – – 16 – 16 – – – – – – –

34 Head Clamp – – – – – – 4 – 4 – – – – – – 2

35 Head Clamp Cap Screw – – – – – – 4 – 4 – – – – – – 2

▼ Complete Seal Kit – – – – – – – – – – – – – – – –

* These parts included in Seal Kit. ** Older model BOPs equipped with welded type sleeve.▼ Recommended spares for One Year Foreign Service, quantity 1 each.

GK-13-5/85000HL

ScrewedHead

No compromise in operating capabilities. Hydril’scompact BOPs provide the same reliability andlong service life the industry has come to expectin its standard size ram BOPs.

• Easy field maintenance: Patented bonnet sealpermits low torque makeup, less time to openbonnet and access ram blocks. Fewer bonnetbolts further reduce maintenance time.

• Reduced downtime: Upper seal seats and bottom wear plates can be replaced in service. Noneed to disassemble the stack, remove it from the rig and ship to an offsite repair facility for time-consuming welding, stress-relief and re-machining. The hydraulic manifold is also field replaceable.

• Increased fluid flow capacity: Hydraulic mani-fold design increases fluid flow capacity throughthe hinge by as much as 40 percent.

• Operating flexibility: Hydraulic manifold installson either side of the BOP, permitting change ofbonnet opening side as required to fit variousstack configurations.

COMPACT BLOWOUT PREVENTER SPECIFICATIONS(Values are typical, and may vary with configuration. Studdedtop, flanged bottom, dual ram types are shown)

LIGHTER WEIGHTLOWER HEIGHTIdeal for both rig upgrades and new builds where space is limited. Hydril’s compact blowout preventers aretypically up to 20 percent shorter than comparable conventional dual ram BOPs, and approximately 15 percent lighter. Here’s an example:

Bore Inches 18 3/4 18 3/4 18 3/4 13 5/8

Pressure psi 5,000 10,000 15,000 15,000

Height Inches 59 63 75 60

Weight Pounds 34,000 35,000 53,100 31,000

Conventional Dual RAM BOP18 3/4 inch bore

15,000 psi pressureTypical weight: 70,000 poundsTypical height: 93-1/2 inches

Compact Dual RAM BOP18 3/4 inch bore

15,000 psi pressureTypical weight: 53,100 pounds

Typical height: 75 inches

Type Units Sizes

Compact™ Blowout Preventers

HYDRIL 2912 HYDRIL

BORE SIZE (inches) 11❍ 11❍ 13-5/8 13-5/8 13-5/8 13-5/8 HL 13-5/8 13-5/8❍ 13-5/8❍ 16-3/4▲ 16-3/4▲ 16-3/4 16-3/4

WORKING PRESSURE (psi) 10,000 *10/15,000 3000 3000 5000 5000 5000 10,000 10,000 2000 3000 5000 5000

HEAD TYPE LATCHED LATCHED SCREWED LATCHED SCREWED LATCHED SCREWED SCREWED LATCHED SCREWED SCREWEDSCREWEDLATCHED

OLD NOMINAL SIZE – – 12 12 – – – – – 16 16 – –

SHELL TEST PRESSURE Factory Only 15,000 22,600 6000 6000 10,000 10,000 7500 15,000 15,000 3000 45000 10,000 10,000

OPERATING CHAMBER TEST PRESSURE Factory Only 10,000 10,000 3000 3000 5000 5000 3000 10,000 10,000 3000 3000 5000 5000

• OPERATING

CHAMBER CLOSING 25.10 26.67 11.36 11.36 17.98 17.98 17.98 ††37.18 ††37.18 17.46 21.02 28.70 28.70

VOLUME (Gal.) OPENING 18.97 20.45 8.94 8.94 14.16 14.16 ††26.50 ††26.50 12.59 15.80 15.80 19.93 19.93


FULL PISTON STROKE (inches) 8 8-1/2 7-1/8 7-1/8 8-1/2 8-1/2 8-1/2 ††10-1/2 ††10-1/2 8-1/2 9 10-1/2 10-1/2

BODY DIAMETER (inches) 58 64-3/4 40-1/2 45-1/4 45-1/2 47-3/4 44 61 63-1/2 46-1/4 48-1/2 53-1/2 54-1/2

CLEARANCE DIAMETER (inches) 60-3/4 69-3/4 47-1/2 47-1/2 52-1/4 52-1/4 48-1/2 68-1/8 68-1/8 53-1/4 55-1/2 59-1/2 59-1/2

FLANGED BOTTOM 10M:63-3/8 72-15/16 45-1/4 45-1/4 5M:54-1/8 5M:54-1/2 – 71-3/8 71-5/16 49-1/2 53-7/8 61-1/4 61-19/6415M• 10M:56-3/16 10M:59-9/16

**HEIGHT (inches) STUDDED BOTTOM 10M:54-7/8 60-7/8 39-3/8 39-3/8 5M:46-1/2 5M• – 60-5/8 61-1/8 43-3/4 47-1/4 53 53-27/6415M 10M:46-1/2 10M•

CIW HUB BOTTOM 10M:61 67-7/8 43 43 5M:51-1/2 5M:51-7/8 46 66-7/8 66-13/16 46-1/2 – 59-7/8 59-59/6415M:60-1/4 10M:51-1/2 10M:51-7/8

FLANGED BOTTOM • • 8784 • 5M:13,800 5M:13,250 – 33,525 • 11,417 14,868 20,835 21,23010M:14,500 10M:13,900

**WEIGHT (lbs.) STUDDED BOTTOM • 35,350 8522 • 5M:13,100 • – 32850 • 11,100 14,470 20,000 20,40010M:

approximate CIW HUB BOTTOM • • 8650 • • • 9400 32,785 33,377 11,317 – 20,545 20.950

FLANGED 10M:BX158 BX158 RX57 RX57 5M:BX160 5M:BX160 – BX159 BX159 RX65 RX66 BX162 BX16215M:BX158 10M:X159 10M:BX159

STANDARD RING GROOVE STUDDED 10M:BX158 BX158 RX57 RX57 5M:BX160 5M:BX160 – BX159 BX159 RX65 RX66 BX162 –10M:BX159 10M:BX159

CIW HUB 10M:BX158 BX158 RX57 RX57 5M::BX160 5M:BX160 BX160 BX159 BX159 RX65 – BX162 BX16215M:BX158 10M:BX159 10M:BX159

*15,000 psi Shell w/10,000 psi Packing Unit ▼ 1" NPT hydraulic connections are standard, 1-1/4" or -1 1/2" available on request.▲ Information Only †Older models may have 8-5/16" bore• Available on Request ††Older models have 9-3/4" piston stroke with 34.53 gallon closing chamber volume and 24.66 opening chamber volume**With standard studded top connection rated to BOP working Pressure ❍ Reference only replaced by GX

WEIGHT (LBS.) OF GK 2000, 3000 AND 5000 PSI

GK ENGINEERING AND DIMENSIONAL DATA

BORE SIZE (inches) 7-1/16 7-1/16 7-1/16 7-1/16 7-1/16 †9 †9 9 11 11 11 11

WORKING PRESSURE (psi) 3,000 5,000 10,000 15,000 20,000 3,000 5,000 10,000 3,000 5,000 5,000 10,000

HEAD TYPE SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED SCREWED LATCHED SCREWED

OLD NOMINAL SIZE 6" 6" – – – 8" 8" – 10 10 10 –

SHELL TEST PRESSURE Factory Only 6000 10,000 15,000 22,500 30,000 6000 10,000 15,000 6000 10,000 10,000 15,000

OPERATING CHAMBER TEST PRESSURE Factory Only 3000 5000 10,000 15,000 20,000 3000 5000 10,000 3000 5000 5000 10,000

• OPERATING

CHAMBER CLOSING 2.85 3.86 9.42 11.2 10.9 4.33 6.84 15.90 7.43 9.81 9.81 25.10

VOLUME (Gal.) OPENING 2.24 3.30 7.08 7.50 7.20 3.41 5.80 11.95 5.54 7.98 7.98 18.97


FULL PISTON STROKE (inches) 4-1/8 4-1/2 5-1/2 5-1/2 5-1/2 5-3/4 5-3/4 6-3/4 6-1/8 7-1/8 7-1/8 8

BODY DIAMETER (inches) 26 29-1/4 43-3/4 50 55 28 34 50-1/2 33-3/4 37-1/2 42-1/4 56-1/2

CLEARANCE DIAMETER (inches) 32-1/4 35-3/4 49-1/2 61 58 34-1/2 41 56-3/4 40 44-1/4 44-1/4 61-1/2

FLANGED BOTTOM 32 36-7/8 10M:48-1/8 54-1/8 59 37-7/8 41-3/4 55-3/4 39-3/4 5M:47-13/16 5M:48-1/4 10M:63-1/215M:48-3/4 10M:48-9/16 10M:49 15M:65-13/16

**HEIGHT (inches) STUDDED BOTTOM 27-3/4 30-3/4 • 45-7/8 48-5/8 32-3/4 34-3/4 48-1/2 34-3/8 5M:39-5/8 5M:40-1/16 10M:5510M:40-1/4 10M:40-11/16

CIW HUB BOTTOM 31-1/8 34-7/8 10M:47-1/8 • – 5M:36-7/8 • – 38-1/8 5M:44-7/8 45-5/16 10M:61-1/815M• 10M• – 15M:61

FLANGED BOTTOM 2715 4000 12200 14250 23000 3500 6000 18540 5500 5M:8200 • 10M:2614010M• 15M•

**WEIGHT (lbs.) STUDDED BOTTOM 2585 3785 • • 22000 3300 5700 18340 5140 5M:7750 • 2546010M•

approximate CIW HUB BOTTOM 2505 3850 11900 • – 5M:3450 • – 5350 5M:7920 • 10M:2600010M• 15M:26100

FLANGED RX45 RX46 10M:BX156 BX156 BX156 RX49 RX50 BX157 RX53 5M:RX54 5M:RX54 10M:BX15815M:BX156 10M:BX158 10M:BX158 15M:BX158

STANDARD RING GROOVE STUDDED RX45 RX46 – BX156 BX156 RX49 RX50 BX157 RX53 5M:RX54 5M:RX54 10M:BX15810M:BX158 10M:BX158

CIW HUB RX45 BX156 BX156 – – RX49 • – RX53 5M:RX53 5M:RX53 10M:BX15815M:BX158

*Compact Model ▼ Available on Request

TYPE GK BLOWOUT PREVENTERS

GK* GK* GK GK GK GK GK GK GK GK GK GK GK GK GK GK7-1/16 7-1/16 9 9 11 11 11 13-5/8 13-5/8 13-5/8 13-5/8 13-5/8 16-3/4 16-3/4 16-3/4 16-3/43000 5000 3000 5000 3000 5000 5000 3000 3000 5000 5000 5000 2000 3000 5000 5000

Screwed Screwed Screwed Screwed Screwed Screwed Latched Screwed Latched Screwed Latched HL* Screwed Screwed Screwed LatchedHead Head Head Head Head Head Head▼ Head Head▼ Head Head Head Head Head Head

BOP Assembly FLANGED 2715 4000 3560 6000 5300 8250 8784 9550 13800 13250 9400 11417 14868 20830 –

STUDDED 2580 3830 3420 5740 5140 7800 8522 – 13100 – – 11100 14470 2000 –

BOP Head 546 1080 803 1308 1220 1835 2305 2160 3455 2585 2990 4064 5210 6641 3698

PACKING UNIT Natural Rubber 109 135 125 198 206 305 305 355 355 470 470 470 530 560 675 675

Nitrile Rubber 111 138 131 205 213 311 311 361 361 480 480 480 540 572 685 685

Piston 610 793 610 1054 1042 1380 1380 1680 1680 2455 2455 2060 2460 2878 3300 3300

BOP Body FLANGED 1240 2060 1855 3620 2600 4645 4135 4840 7120 7120 3983 5250 7146 9710 –

STUDDED 1000 1925 1710 2990 2400 4112 3910 – – – – 4860 6980 – –

Slotted Body Sleeve – – – – – – 180 180 230 230 190 – – 311 311

BOP Bore Size (in.) 7-1/16 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11 11 13-5/8

Pressure Rating (psi) 3000 5000 10,000 15,000 20,000 3000 5000 3000 5000 10,000 20,000 3000

Bonnet Bolt Size 2-8 UN 2-8 UN 2-1/4-8 UN 2-1/2-8 UN 2-3/8-8 UN 1-7/8-8 UN 1-7/8-8 UN 2-8 UN 2-8 UN 2-3/4-8 UN 3-5/8-8 UN 2-1/4-8 UN

*Bonnet Bolt Torque (ft. lbs.) 950 1,600 1,700 2,350 2,400 600 1,000 850 1,400 3,100 1,500 1,400

Cylinder Nut Size 1-1/4-8 UN 1-1/4-8 UN 1-1/4-8 UN 1-3/8-8 UN 1-3/8-8 UN 1-1/14-8 1-1/4-8 UN 1-3/8-8 UN 1-3/8-8 UN 1-1/2-8 UN 1-1/2-8 UN 1-3/8-8 UN

Cylinder Nut Torque (ft. lbs) 640 640 580 1,500 880 580 580 760 760 960 880 960

Conversion of Hydril High Pressure Ram BOPs toaccept New Bonnet Seal Improves Seal Integrity andLowers Bonnet Bolt Torque.Based on Hydril's record of providing the newest and mostadvanced designs in blowout prevention equipment, Hydrilhas again met the challenge by developing a new patentedbonnet seal that overcomes bonnet gap problems caused byhigh pressures. Minimizing these gaps currently requires theuse of very high BOP bonnet bolt torques on high pressureBOPs. Seal gap problems become more severe in both coldweather and high temperature applications. Standard highpressure seals tend to loose their preload without internalpressure in the BOP which sometimes causes sealing

difficulties at low pressures, especially in cold temperatures.The results of Hydril's new bonnet seal design improves sealintegrity at both low and high pressures and lowers bonnetbolt torque significantly to 1500 - 2000 ft.-lbs.

Hydril's original bonnet seal consists of a single seal ringinstalled in a groove in the bonnet face (see Figure A).Hydril's new bonnet seal design consists of a set of specialcompound O-rings installed in a seal ring carrier. Conversionof the BOPs containing the original style bonnet seal to thenew bonnet seal requires removal of the bonnet, machininga new cavity for the new seal ring carrier, and installing theseal ring carrier and the O-rings in the cavity as shown inFigure B.

BOP Body Bonnet

Figure A. Hydril's Original Bonnet Seal Design

Original Bonnet Seal

Back-Up Ring

O-Ring Seal

BOPBODY

Spring O-Ring

BONNET

SealCarrier

Screw

Figure B. Bonnet Converted to New BonnetSeal Design (U.S. Pat. No. 5255890)

BonnetSeal

*Torque values were determined by using Hydril Thread Lubricant (Coefficient of friction 0.069)

*Conventional RAM **Compact RAM

RAM BOP BOLT TORQUE CHART

Conventional Ram Bonnet Seal Upgrade

BOP Bore Size (in.) 13-5/8 13-5/8 13-5/8 16-3/4 18-3/4* 18-3/4** 18-3/4* 18-3/4** 18-3/4* 18-3/4** 20-3/4 21-1/4 21-1/4

Pressure Rating (psi) 5000 10,000 15,000 10,000 5000 5000 10,000 10,000 15,000 15,000 3000 2000 5000

Bonnet Bolt Size 3-1/4-8 UN 3-1/4-8 UN 3-1/4-8 UN 3-1/2-8 UN 2-3/8-8 UN 3-1/4-8 UN 3-1/2-8 UN 3-1/4-8 UN 3-1/4-8 UN 4-8 UN 2-8 UN 2-8 UN 2-3/8-8 UN

*Bonnet Bolt Torque (ft. lbs.) 2,350 4,900 8,500 6,750 2,400 2,000 7,500 2,000 8,500 2,000 1,300 900 2400

Cylinder Nut Size 1-3/8-8 UN 1-1/2-8 UN 1-1/2-8 UN 1-1/2-8 UN 1-3/8-8 UN 1-1/4-8 UN 1-1/2-8 UN 1-1/4-8 UN 1-1/2-8 UN 1-1/4-8 UN 1-3/8-8 UN 1-3/8-8 UN 1-3/8-8 UN

Cylinder Nut Torque (ft. lbs.) 1,160 880 880 880 880 550 880 550 1,280 550 960 960 880

HYDRIL 1130 HYDRIL

The GK BOP has been developed especially for use onsurface installations but it is also used subsea. Standardoperation requires both opening and closing pressure. Sealoff is effected by hydraulic pressure applied to the closingchamber which raises the piston, forcing the packing unitinto a sealing engagement. Any normal closing unit havinga separate pressure regulator valve for the annular BOPand sufficient accumulator volume can be used to operatethe GK.

The GK is designed to be well pressure assisted inmaintaining packing unit seal off once initial seal off hasbeen effected. As well pressure further increases, closureis maintained by well pressure alone. Exceptions are the GK7-1/16"-15,000 and 20,000 psi which are not well pressureassisted and closing pressure must be maintained on theBOP to assure seal off. (Refer to the operators manual forclosing pressure curves.)

STRIPPING OPERATIONSDuring well control operations, drill pipe can be rotated andtool joints stripped through a closed packing unit, whilemaintaining a full seal on the pipe. Longest packing unit lifeis obtained by adjusting the closing chamber pressure justlow enough to maintain a seal on the drill pipe with a slightamount of drilling fluid leakage as the tool joint passesthrough the packing unit. This leakage indicates the lowestusable closing pressure for minimum packing unit wear andprovides lubrication for the drill pipe motion through thepacking unit.The packing unit life is reduced when used forstripping operations.The pressure regulator valve should be set to maintain the

proper closing chamber pressure. If the pressure regulator

valve cannot respond fast enough for effective control, anaccumulator (surge absorber) should be installed in theclosing chamber control l ine adjacent to the BOP –precharge the accumulator to 50% of the closing pressurerequired. In subsea operations it is sometimes advisable toadd an accumulator to the opening chamber line to preventundesirable pressure variations with certain control systemcircuits.

Recommended test pipe for maximum packing unit life.❍ Reference only replaced by GX

Operation of the GK® Blowout Preventer

AVERAGE CLOSING PRESSURE (PSI) TO ESTABLISH INITIAL SEAL OFF INGK BLOWOUT PREVENTERS FOR SURFACE INSTALLATIONS

Pipe ❍ ❍O.D. 7-1/16- 7-1/16- 7-1/16- 7-1/16- 7-1/16- 13-5/8- 13-5/8- 13-5/8- 16-3/4

Inches 3M 5M 10M 15M 20M 9-3M 9-5M 9-10M 11-3M 11-5M 11-10M 3M 5M 10M 16-2M 16-3M 5M 18-2M*

6-5/8 – – – – – – – – – 350 – 700 600 – 350 450 – 500

5 – 400 – – – – – 350 450 450 500 800 650 700 400 500 – 550

4-1/2 350 400 350 2100 2200 400 450 380 450 450 500 900 650 700 500 500 600 600

3-1/2 400 450 550 2100 2200 500 600 570 550 525 700 1000 700 1200 600 600 650 650

2-7/8 400 450 750 2100 2200 550 650 760 650 800 800 1100 750 1400 700 700 750 700

2-3/8 500 500 850 2100 2200 650 750 860 750 900 1100 – 950 1400 800 800 850 740

1 90 600 600 900 – – 750 850 850 920 – – – 1000 1500 900 950 950 850

1 66 700 700 1000 – – 850 950 1000 950 – – – 1000 1500 1000 1000 1050 950

CSO 1000 1000 1150 – – 1050 1150 1150 1150 1150 1500 1200 1150 2200 1150 1150 1150 1150

The pressures above are a guideline. Maximum packing unit life will be realized by theuse of the lowest closing pressure that will maintain a seal. For subsea applications, seethe appropriate Operator's Manual for computation of best closing pressure.

Conventional Ram BOP Operational Data Chart

13-5/8”-10,000 psi Ram BOPManual Lock illustrated

Bore Size (in.) 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11 11

Working Pressure (psi) 3000 5000 10,000 15,000 3000 5000 3000 5000 10,000 20,000

Old Nominal Sizes (in.) 6 6 7-1/16 7-1/16 8 8 10 10 11 11

Manual LockPipe Ram 5-1/2 5-1/2 7-1/2 10 7-1/2 7-1/2 8-1/2 8-1/2 10 –

Shear Ram – – 12-3/4 12-3/4 – – 10-3/4 10-3/4 12-3/4 –Cylinder Bore (in.)

MPLPipe Ram 5-1/2 5-1/2 7-1/2 NA NA NA NA NA 10 14-1/4

Shear Ram 12-3/4 – – 10-3/4 10-3/4 12-3/4 14-1/4


Shear Ram – – – – – – 5.5 5.5 8.8 –Gallons To Close (1 Set)

MPLPipe Ram 1.2 1.2 2.0 3.9 – – – – 5.7 12.5

Shear Ram – – – – – – 6.0 6.0 9.3 12.5

Manual LockPipe Ram 93 93 1.8 3.4 1.9 1.9 3.2 3.2 5.0 –

Shear Ram – – – – – – 5.0 5.0 8.2 –Gallons To Open (1 Set)

MPLPipe Ram 93 93 1.8 3.4 – – – – 5.0 11.5

Shear Ram – – – – – – 5.0 5.0 8.2 11.5


Shear Ram – – – – – – 5.6 5.6 11.7 –Closing Ratio

MPLPipe Ram 5.4 5.4 8.2 7.6 – – – – 7.6 12.69

Shear Ram – – – – – – 6.0 6.0 12.4 12.69

Opening Ratio Manual MPLPipe 1.5 1.5 1.7 6.6 2.6 2.6 2.0 2.0 2.4 –

Shear Ram – – – – – – 4.2 4.2 4.0 –


Bonnet Bolts 950 1600 1700 2350 600 1000 850 1400 3100 1500†Torque Required (Ft. Lbs.)


HYDRIL 3110 HYDRIL

The GK Annular Blowout Preventer was designed especiallyfor surface installations and is also used on offshoreplatforms and subsea. The GK is a universal annularblowout preventer with a long record of proven, qualityperformance.Only Two Moving Parts (piston and packing unit) on the

Hydril Annular BOP mean few areas are subjected towear. The BOP is safer and more efficient, requiring lessmaintenance and less downtime.A Long Piston with a length to diameter ratio approaching

one eliminates tendencies to cock and bind duringoperations with off-center pipe or unevenly distributedaccumulations of sand, cuttings, or other elements. Thisdesign enhances the ability of the packing unit to reopen tofull bore position.The Conical Bowl Design of the Piston provides a simple

and efficient method of closing the packing unit. With thepiston serving as a sealing surface against the rubberpacking unit, there is no metal-to-metal wear on the sealingsurface and thus longer life results.A Field Replaceable Wear Plate in the BOP Head serves

as an upper non-sealing wear surface for the movement ofthe packing unit, making field repair fast and economical.Maximum Packing Unit Life is possible with the provision

for measuring piston stroke. This measurement indicatesremaining packing unit life without disassembly and ensuresthe longest and safest use of the packing unit.

Two Choices of Packing Unit Rubber Compoundspermit more flexible applications.

The Screwed Head Design of the GK BOP is a simple,efficient, and strong method of connecting the head to thebody for safe operation with no loose parts to be lost downthe hole or overboard.The Latched Head Design is available on the GK, 13-5/8"-

5000 and larger BOPs. It provides fast access to packingunits and seals for minimum downtime with no loose parts tobe lost down hole or overboard.

Large Pressure Energized Seals are used fordynamically sealing piston chambers to provide safeoperation, long seal life, and less maintenance.

Piston Sealing Surfaces Protected by Operating Fluidlowers friction and protects against galling and wear toincrease seal life and reduce maintenance time.

The Operating Chambers are Tested to Full BOPWorking Pressure to ensure strength, reliability, and theability to over-pressurize the chambers in emergencies.Meets NACE MR-01-75 Material Standards for resistance

to sulfide stress cracking.

Hydril GK® Annular Blowout Preventers

Bore Size (in.) 13-5/8 13-5/8 13-5/8 13-5/8 18-3/4 18-3/4 18-3/4 20-3/4 21-1/4 21-1/4

Working Pressure (psi) 3000 5000 10,000 15,000 5000 10,000 15,000 3000 2000 5000

Old Nominal Sizes (in.) 12 13-5/8 13-5/8 13-5/8 18-3/4 18-3/4 18-3/4 20 20 21-1/4

Manual LockPipe Ram 10 10 14-1/4 NA 14-1/4 NA NA 10 10 14-1/4

Shear Ram 14-1/4 14-1/4 14-1/4 NA NA NA NA 14-1/4 14-14 14-1/4Cylinder Bore (in.)

MPLPipe Ram 10 10 14-1/4 14-1/4 14-1/4 14-1/4 15.5 14-1/4 14-1/4 14-1/4

Shear Ram 14-1/4 14-1/4 14-1/4 14-1/4 14-1/4 14-1/4 15.5 14-1/4 14-1/4 14-1/4


Shear Ram 11.5 11.5 12.2 NA 17.1 NA NA 17.2 17.2 17.5Gallons To Close (1 Set)

MPLPipe Ram 5.9 5.9 12.8 12.6 17.9 17.1 19.4 18.0 18.0 19.3

Shear Ram 12.0 12.0 12.8 12.6 17.9 17.1 19.4 18.0 18.0 19.3


Shear Ram 11.2 11.2 11.6 NA 16.1 NA NA 16.3 16.3 16.6Gallons To Open (1 Set)

MPLPipe Ram 4.9 5.2 11.6 11.0 16.1 15.6 16.7 16.3 16.3 16.6

Shear Ram 11.2 11.2 11.6 11.0 16.1 15.6 16.7 16.3 16.3 16.6


Shear Ram 10.1 10.1 10.2 NA 10.1 NA NA 10.14 10.14 10.2Closing Ratio

MPLPipe Ram 5.2 5.2 10.6 7.74 10.6 10.6 7.27 10.6 10.6 10.6

Shear Ram 10.6 10.6 10.6 7.74 10.6 10.6 7.27 10.6 10.6 10.6

Opening Ratio Manual MPLPipe 2.1 2.1 3.8 3.56 1.9 1.9 2.15 .98 .98 1.9

Shear Ram 4.7 4.7 3.8 3.56 2.2 1.9 2.15 2.2 2.2 1.9


Bonnet Bolts 1400 2350 4900 8500 2400 7500 8500 1300 900 2400†Torque Required (Ft. Lbs.) *2000 *2000 *2000 *2000 *2000 *2000


* Low torque bonnet seal

18-3/4”-10,000 psi Ram BOPAutomatic Multiple Position Lock (MPL) illustrated

Cutaway View of Screwed Head GK BOPWith Packing Unit Fully Open

WEARPLATE

PACKINGUNIT

HEAD

OPENCHAMBER

PISTON

CLOSINGCHAMBER

HYDRIL 932 HYDRIL

PARTS LIST GX 11”, 13-5/8" AND 18-3/4" BOPS


1 Head 1 1*2 Head Gasket – 1▲3 Packing Unit 1 14 Body 1 1*5 U-Seal Ring, Inner 2 2*7 Double U-Seal Ring, Middle 1 1*8 Non-Extrusion Ring, Middle 2 29 Piston 1 1

*10 Double U-Seal Ring, Lower 1 1*11 Non-Extrusion Ring, Lower 2 212 U-Seal Ring, Outer 1 –*15 O-Ring, Head 1 116 Slotted Body Sleeve 1 117 Capscrew, Slotted Body Sleeve 12 12*18 O-Ring, Jaw Operating Screw 16 2019 Jaw Operating Screw 16 2010 Head, Opening Chamber 1 121 Shoulder Screw 16 20

* These parts included in seal kit.▲Recommended Spares for One Year Foreign Service, quantity 1 each.

Conventional Ram Blowout PreventerDimensional Chart


22 Pipe Plug, Jaw Operating Screw 16 2023 Radial Latch 16 2024 Relief Fitting 1 125 Shackle, Anchor 4 426 Wearplate 1 127 Capscrew, Wearplate 6 628 Pulldown Bolt Assembly 4 4▲ Complete Seal Kit

ACCESSORIESProtector Plate 1 1Protector Plate Screws 4 4Chain Sling Assembly 1 1Eyebolts for Piston 3 3Eyebolts for Head 3 3Eyebolt, Opening Chamber Head 3 3

RAM BLOWOUT PREVENTER DIMENSIONAL CHART

Bore Size (inches) 7-1/16 7-1/16 7-1/16 7-1/16 9 9 11 11 11 11 13-5/8Working Pressure (psi) 3000 5000 10,000 15,000 3000 5000 3000 5000 20,000 10,000 3000Old Nominal Sizes (inches) 6 6 7-1/16 7-1/16 8 8 10 10 11 11 12

L (Length, inches) Manual Lock 77-1/16 77-1/16 79 86-3/16 82-1/2 82-1/2 95 95 106-1/4 116-3/4

MPL 133.16 104-1/2 115-11/16

W (Width, inches) 24-3/4 24-3/4 31-1/4 32-1/4 30-7/8 30-7/8 37-7/8 37-7/8 52.88 39-3/4 40

Flg x Flg 22-9/16 24-1/4 29-1/4 34-3/16 28-3/16 31-11/16 30-1/4 35-1/2 36-1/4 33-1/4

Single Flg x Std 49.19 28

H (Height, inches) Hub x Hub 21-5/8 25-3/4 23-3/4 24-1/4 25-3/4 20-3/4 22-3/8

Flg x Flg 35-9/16 37-3/8 46 54-5/8 48-9/16 52-1/16 ▼49-3/4 55 56-7/8 ▼55-1/8

Double Flg x Std 84.0 48-5/8

Hub x Hub 38-3/8 46 44-1/8 ▼ 43-3/4 45-1/4 41-3/8 44-1/4

Flanged 16-3/4 16-3/4 19-1/16 23-1/8 *18-25/32 *18-25/32 22-3/16 22-3/16 32.75 25-9/16 23

D (inches) Centerline Preventer to Outlet Face Hub 18-3/16 22-7/8 *17-9//16 *17-9/16 21 21 23-5/8

Studded 19-1/16 24-3/8 *18-25/32 *18-25/32 22-3/16 22-3/16 22.13 25-9/16 23

Flanged 8-7/16 9-7/16 10-9/16 13-1/8 9-29/32 11-21/32 10-1/8 12-3/4 21.6 12-1/2 9-5/8

E (inches) Centerline Lower Outlet to Lower Connection Hub 7-3/16 6-3/4 8-13/16 7-11/16 7-1/8 7-7/8 8-3/8

Studded 5-5/16 5-1/16 6-7/17 4-7/8 4-7/8 6-1/4 6-1/4 4-3/4 4-1/2

Flanged 21-7/16 22-9/16 27-5/16 33-3/8 30-9/32 32-1/32 41-5/8 32-1/4 56.41 33-1/8 31-1/2

F (inches) Centerline Upper Outlet to Lower Connection Hub 20-3/16 23-1/2 29-1/16 28-1/16 28-4/8 27-3/8 29

Studded 18-5/16 18-5/16 21-7/8 26-11/16 25-1/4 25-1/4 27-3/4 25-3/4 25-3/8 26-3/8

G Centerline to Off-Hinge Side (inches) 9-1/4 9-1/4 12-5/8 15-1/2 11-7/8 11-7/8 16-3/4 16-3/4 22.13 17-3/4 17-13/16

J Centerline to Hinge Side (inches) 15-1/2 15-1/2 19 22-1/4 19 19 21-1/8 21-1/8 30.75 25 22-3/16

K Centerline to Body Face (inches) 8 8 9-7/16 10 10 10 11-1/2 11-1/2 20.38 12-7/8 14-5/16

M Centerline to Hinge Pine Centerline (inches) 12 12 17 19-1/8 17 17 18-5/8 18-5/8 27.38 21-3/8 19-3/4

N Body Face to Hinge Pin Centerline (inches) 2-5/8 2-5/8 2-1/4 2-3/4 2-1/4 2-1/4 2-3/4 2-3/4 5.09 2-3/4 2-3/4

O Ram Cavity (inches) 5 5 6 6 5-19/32 5-19/32 6-5/8 6-5/8 17.75 7-1/8 8

Flanged 8-9/16 9-1/8 11-5/8 14-3/16 11-13/32 13-5/32 11-3/4 14-3/8 14-7/8 12-5/8

P Top of Cavity to Top Connection Face (inches) Hub 6-1/2 7-3/16 9-7/8 9-3/16 8-3/4 9-1/2 10-5/8

Studded 4 4 6-3/16 7-1/2 6-3/8 6-3/8 8 8 10.44 7-1/16 6-1/2

Q Bottom of Upper Ram to Top of Lower Ram (inches) 13 13 22-1/2 14-1/2 14-25/32 14-25/32 13-3/32 13-3/32 25.94 13-1/2 13-7/8

R O.D. Cylinder Head or Manual Lock Protector (inches) Manual Lock 5 5 5 7 7 7 7 7 7 7

MPL 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 5-1/2 8.54 5-1/2 5-1/2

Manual Lock 44-5/8 44-5/8 47-3/4 55-5/8 50-13/16 50-13/16 58 58 63-15/16 66-1/4

S Preventer Center Line to End of Bonnet Door Open 90° MPL 46-1/2 46-1/2 49-3/4 55-5/8 50-13/16 50-13/16 58 58 78.67 63-1/2 64-1/2

Flanged 45-1/8 45-1/8 38-1/8 46-1/4 37-9/16 37-9/16 44-3/8 44-3/8 65.50 51-1/8 46

T Width From Outlet to Outlet (inches) Hub N/A N/A 36-3/8 45-3/4 35-1/8 35-1/8 42 42 47-1/4 43-1/2

Studded 38 38 38-1/8 48-3/4 37-9/16 37-9/16 44-3/8 44-3/8 44.26 51-1/8 46

U Swing Radius (inches) Manual Lock 36-3/16 36-3/16 37 42-3/8 N/A N/A 44-5/8 44-5/8 62-1/2 52-1/4

MPL 36-3/16 36-3/16 37 42-3/8 N/A N/A 44-5/8 44-5/8 59.75 49-5/8 51-1/2

ø Minimum Bonnet Angle to Remove Ram (degrees) (not shown) 66° 66° 51° 45° 56° 56° 56° 56° 36° 53° 65°

Approx. Manual Assembly Weight (lbs.) Single 2350 2465 5600 5370 5200 5400 5600 6000 31,000 9750 8450

Flanged Connections Double 4910 4930 10,600 10,200 10,200 10,400 10,800 12,000 59,000 18,100 16,300

Max. Size Pipe Ram 5-1/2 5-1/2 5-1/2 5-1/2 7 7 8-5/8 8-5/8 7-5/8 8-5/8 10-3/4

API Flange BX158

Ring Gasket Studded R-45 R-46 BX156 BX156 R-49 R-50 R-53 R-54 BX158 R-57

C.I.W. Hub BX156 BX156

* Hinge side centerline to outlet face dimensions for 9”-3M & 5M Preventers as follows: 20” & 25-3/32 for 2”-5M and 3”-3M & 5Mstudded outlets; 22-1/2” for 2”-5M flanged outlet; 23” for 3”-3M flanged outlet; 24” for 3-1/8-5M Hub outlet; and 23-1/2” for 3”-5M flanged outlet

▼ Height dimensions shown are for integral cast bodies. Heights for fabricated bodies are slightly higher.NOTE: API Clamp Type connection requires the use of SR ring grooves and RX Ring Joint Gaskets Paragraph 4.3.4.2.2.1 API 16A 2nd Edition.NOTE: Operating Pressure is the same for both Blind Ram and Pipe Ram.

Exploded View of GX, 11", 13-5/8" Exploded View of GX 18-3/4"

HYDRIL 338 HYDRIL

HOW TO ORDER GX PACKING UNITSThe following information should be included when ordering agenuine Hydril packing unit replacement.1. BOP Type: GX2. Bore Size3. Pressure Rating: 5000, 10,000, 15,000 psi.4. Type of Material: (NR)–Natural Rubber; (NBR)–Nitrile Rubber5. Certification: API 16A, Monogramed, other.

Ram Bop Btm Top Ht. Wt.

18-3/4-10000 DR Flg x Std. 73-3/16 51,300 lb.① 18-3/4-10000 EDR Flg. x Std. 81-11/16 51,800 lb.

18-3/4-15000 DR Flg x Std. 93-1/2 69,900 lb.➁ 18-3/4-15000 EDR Flg x Std 96-1/2 70,400 lb.

GX ENGINEERING DATABORE SIZE (inches) 11" 11" 13-5/8" 13-5/8" 13-5/8" 18-3/4"WORKING PRESSURE (psi) 10,000 15,000 5,000 10,000 15,000 10,000

SHELL TEST PRESSURE (psi) 15,000 22,500 10,000 15,000 22,500 15,000(Factory Test Only)CLOSURE RANGE (inches) 11" to 0 11" to 0 13-5/8" to 0 13-5/8" to 0 13-5/8" to 0 18-3/4" to 0CLOSING CHAMBER VOLUME (U.S. Gal.) 17.9 24.1 15.5 24.1 34.0 58OPENING CHAMBER VOLUME (U.S. Gal.) 17.9 24.1 15.5 24.1 34.0 58FULL PISTON STROKE (inches) 7.00 8.50 7.00 8.50 9.50 11.50HEIGHT FLANGED BOTTOM 5M – – 52.32 – – –

10M 57.12 – 54.31 63.25 – 80.1515M 59.44 – – 65.38 77.00 82.50

HUB BOTTOM 5M – – 51 – – –10M – – – – – 76.3815M – – – – 71.88 74.75

STUDDED BOTTOM 5M – – – – – –10M – – – – – –15M – – – – 64.12 68.44

WEIGHT FLANGED BOTTOM 5M – – – – – –10M 21,385 – – 28,000 – 52,25015M 22,085 – – 28,885 – 54,360

HUB BOTTOM 5M – – 14,375 – – –10M – – – – – 50,62015M – – – – – 50,500

STUDDED BOTTOM 5M – – – – – –10M – – – – – –15M – – – – – 50,840

BODY CLEARANCE DIAMETER (inches) 60.38 67.12 58 64.50 73.25 84

Bore Size (inches)Working Pressure (psi)Old Nominal Sizes (inches)

L (Length, inches) Manual Lock

MPL

W (Width, inches)

Flg x Flg

Single Flg x Std

H (Height, inches) Hub x Hub

Flg x Flg

Double Flg x Std

Hub x Hub

Flanged

D (inches) Centerline Preventer to Outlet Face Hub

Studded

Flanged

E (inches) Centerline Lower Outlet to Lower Connection Hub

Studded

Flanged

F (inches) Centerline Upper Outlet to Lower Connection Hub

Studded

G Centerline to Off-Hinge Side (inches)

J Centerline to Hinge Side (inches)

K Centerline to Body Face (inches)

M Centerline to Hinge Pine Centerline (inches)

N Body Face to Hinge Pin Centerline (inches)

O Ram Cavity (inches)

Flanged

P Top of Cavity to Top Connection Face (inches) Hub

Studded

Q Bottom of Upper Ram to Top of Lower Ram (inches)

R O.D. Cylinder Head or Manual Lock Protector (inches) Manual Lock

MPL

Manual Lock

S Preventer Center Line to End of Bonnet Door Open 90° MPL

Flanged

T Width From Outlet to Outlet (inches) Hub

Studded

U Swing Radius (inches) Manual Lock

MPL

ø Minimum Bonnet Angle to Remove Ram (degrees) (not shown)

Approx. Manual Assembly Weight (lbs.) Single

Flanged Connections Double

Max. Size Pipe Ram

API Flange

Ring Gasket Studded

C.I.W. Hub

Ram Blowout Preventer Dimensional Chart (con’t.)

13-5/8 13-5/8 13-5/8 18-3/4 18-3/4 18-3/4 20-3/4 21-1/4 21-1/45000 10,000 15,000 5000 10,000 15,000 3000 2000 500013-5/8 13-5/8 13-5/8 18-3/4 18-3/4 20 20 21-1/4

116-3/4 124-3/4 N/A 147.88 N/A N/A 151-1/2 151-1/2 148

115-11/16 114 119-1/8 139.60 138-1/4 150-3/4 147

40 50-3/4 47-5/8 46-3/4 59-5/8 59-7/8 52-1/4 52-1/4 46

36-1/4 41-3/4 51-3/8 54-1/4① 65-1/2➁ 38-1/2 35-1/4 47

37.90

30-1/8 31-1/4 39-7/16 43-1/8 51 28-7/8 29-1/4 40

▼58-1/8 66-3/4 80-5/8 85-3/4 103-1/2 83-1/2 60-1/4 75-1/4

66.38

▼52 56-1/4 68-11/16 74-5/8 89 53-7/8 54-1/4 68-1/4

23 28-5/8 29-1/2 26.70 33-3/8 34-1/8 28-1/2 28-1/2 28-5/8

21-3/4 22-1/4 N/A 25-1/4 31-1/2 34-1/8 29-3/16 29-3/16 27-7/16

23 28-5/8 N/A 33-1/8 34-1/8 28-5/8

11-1/8 13-3/4 18-5/8 15.40 18-7/8 21-3/4 13-5/16 11-11/16 15-1/4

8-1/16 8-1/2 12-5/8 12.54 13-5/16 16-1/2 8-1/2 8-11/16 12-7/16

4-1/2 4-3/8 6-5/8 6-5/16 13-3/4 7-1/4

33 38-3/4 47-7/8 50-3/8 61-3/4 42-15/16 36-11/16 44-3/16

29-15/16 33-1/2 41-15/16 41.20 44-13/16 54-1/2 33-1/2 33-11/16 40-3/4

26-3/8 30-3/8 35-9/16 51-3/4 35-1/2

17-13/16 22-1/2 19-5/8 19-1/2 25-1/2 25-5/8 23-1/4 23-1/4 21-1/2

22-3/16 28-1/4 28 27-1/4 34-3/16 34-1/4 29 29 29-1/4

14-5/16 15-1/8 17-7/16 15.63 20-1/2 20-5/8 16-7/8 16-7/8 16-7/8

19-3/4 25-1/2 25 24-1/4 30-3/4 30-7/8 26-1/4 26-1/4 26-1/4

2-3/4 3-1/4 3-1/4 3-1/4 3-1/2 3-1/2 3-1/4 3-1/4 3-1/4

8 8-1/4 8-3/4 7-1/4 10 11 7-1/4 7-1/4 7-1/2

14-1/8 16-3/4 21-15/16 22-1/8 27-1/4 15-5/8 13-15/16 19-5/8

11-1/16 11-1/2 15-7/8 16-9/16 20 10-13/16 10-15/16 16-1/8

6-1/2 6-5/8 9-1/2 11 9-9/16 17-1/4 11

13-7/8 16-3/4 20-1/2 21.40 21-1/2 27 17-11/16 17-11/16 21

7 7 N/A 7 N/A 7 7 7

5-1/2 5-1/2 5-1/2 5.58 5-1/2 5-1/2 5-1/2 5-1/2 6-1/2

66-1/4 75-1/8 N/A 91.78 N/A N/A N/A N/A 86-7/8

64-1/2 71 70-3/8 87.51 84-3/8 89-1/4 88-3/8 88-3/8 86-1/2

46 57-1/4 58-1/4 53.90 66-3/4 68-1/4 57 57 57-1/4

43-1/2 44-1/2 58-1/4 54.10 63 58-1/4 58-3/8 58/38 54-7/8

46 57-1/4 48-1/4 66-3/4 68-1/4 N/A N/A 57-1/4

52-1/4 58-1/4 45-3/8 67.53 62 N/A 59-3/4 59-3/4 66

51-1/2 53-1/4 45-3/8 63.20 62 65-15/16 59-3/4 59-3/4 65-3/4

65° 49° 52° 65° 50° 52° 63° 63° 70°

8850 17,000 **21,150 19,900 28,500 **31,900 14,500 14,000 18,000

16,700 37,000 **41,150 38,300 52,000 **62,750 28,000 27,000 32,000

10-3/4 10-3/4 10-3/4 16 16 16 16 16 16

BX164

BX160 BX159 N/ABX163

BX164 CX-18 R-74 R-73 BX165BX164

BX160 BX159 BX159 Bx164 CX-18 R-73 R-73 BX165

**Hub Connections▼ Height dimensions shown are for integral cast bodies. Heights for fabricated bodies are slightly higher.NOTE: API Clamp Type connection requires the use of SR ring grooves and RX Ring Joint GasketsParagraph 4.3.4.2.2.1 API 16A 2nd Edition.NOTE: Operating Pressure is the same for both Blind Ram and Pipe Ram.

BALANCED PISTONPiston stability is assured by Hydril's time proven long pistondesign with contact points providing a length-to-diameterratio approaching 1. This design eliminates any tendency tocock and bind during operations with off-center pipe orunevenly distributed accumulations of sand or cuttings.

The GX piston is completely balanced. The opening andclosing chamber areas are of equal size. This equalizes thehydrostatic forces exerted on the piston by the control fluidcolumn in subsea operations. The result is a BOP that uti-lizes a constant closing pressure regardless of water depthor mud weight. This piston design is such that the closingpressure requirements are virtually independent of well borepressures.

Contoured angulartapers on the pistonbowl compress anddisplace the reser-voir of feedablerubber in the back ofthe packing unit.This design assuresoptimum rubberfeeding and closingefficiency. Movement of the piston to theopen position allowsthe packing unit torelax to ful l openbore.

STRIPPINGThe design of the GX effectively controls positioningof the inserts. When stripping, the inserts remainfixed as the rubber flows in and out, allowing thealternating diameters of pipe and tool joints to passthrough the closed packing unit.

This results in a dramatic increase of the GX pack-ing unit stripping life – to approximately twice that of similar sized annular BOPs.

EXTRA PACKING UNIT LIFEThe heart of any annular BOP is its packing unit – and theGX is no exception. Its packing unit has a greatly increasedreservoir of high-quality feedable rubber. Because the reser-voir of feedable rubber is larger, the GX permits continuousrubber feeding as the boresurface wears.The packing units reinforcing flanged steel inserts are dri-

ven by the rubber during closure and quickly reach a fixedposition where they form a steel ring to support the rubberfrom upward motion under wellbore pressure.

Once the inserts reach their fixed position, rubber contin-ues to flow inward, effecting a positive seal off on the drillstring or the open bore.

The rubber is primarily in compression and is thereforeresistant to tears, cuts and abrasions. The steel inserts sta-bilize the rubber and control the flow pattern to minimize rub-ber stress.Packing unit life due to routine testing at full working pres-

sure has been increased beyond previous levels. BecauseHydril Company manufactures all its own packing units, rigidquality control is assured and field performance enhanced.

MORE PRECISE CONTROLTool joints can be stripped through the closed packing unitwhile a full seal is maintained on the pipe.

The GX packing unit design permits precise control ofpackoff tightness, regardless of wellbore pressures. Thisallows a slight drilling fluid leakage to be achieved duringstripping operations to provide lubrication, optimize pullthrough forces and prolong packing unit life.The result is the ability to strip long strings of pipe and tool

joints in or out of the hole at higher wellbore pressures.

HYDRIL 734 HYDRIL

Hydril Conventional Ram BOP Parts List

7-1/16”-3000 Model A, 7-1/16”-5000 Model A,9”-3000, 9”-5000, 11”-3000, 11”-5000,13-5/8”-3000, 13-5/8”-5000,20-3/4”-3000, 21-1/4”-2000, 21-1/4”-5000

HYDRIL 356 HYDRIL

35

Hydril GX® Annular BOP

THE GX . . . THE FIELD PROVENFLAGSHIP PREVENTER OF HYDRIL'S FLEET

The GX offers extra performance and serviceability whileretaining the field proven features of Hydril annular BOPs.

The GX delivers extended operating service with fewpacking unit changes, with a design that is simple and easyto maintain in both surface and subsea operations.

The GX will close on virtually any drill stem member orseal off the open bore. Operating volumes are lower, resulting in faster closing times and smaller accumulatorrequirements. Packing Unit fatigue and stripping life havebeen increased beyond previous industry levels for equiva-lent sized Annular BOPs.

The GX allows full control of packoff tightness duringstripping operations, regardless of wellbore pressures.

The structural design, quality and testing of the GXcontinues Hydril's state-of-the-art advances.Here are the field proven Hydril features the GX provides:

■ Simple design – only 2 moving parts, thus fewer areasare subjected to wear meaning less maintenance anddowntime.

■ Proven operating principle provides full packing unitseal off at maximum working pressure on open hole, casing, drill pipe, tool joints, kelly or tubing.

■ Long piston design for optimum stability and reliableoperation..

■ Latched Head for fast and easy access to packing unitand seals..

■ Opening Chamber Head to prevent inadvertentcontamination of the hydraulic system during packing unitreplacement.

■ Four large pressure energized lip seals are used fordynamically sealing piston chambers.

■ Replaceable Wear Plate eliminates metal to metal contact between the packing unit inserts and the BOPhead,making field repair fast and economical.

■ State-of-the-art structural design, quality and testingfor optimum reliability.

■ Stainless Steel Lined Connection Ring Grooves forcorrosion resistance.

■ Meets NACE MR-01-75 Material Standards for resistanceto sulfide stress cracking.

■ Fabricated from quench and tempered low alloy steel suitable for service in both low and high tempera-ture applications.

GX 18 3/4"-10,000 psi

7-1/16”-10,000, 7-1/16”-15,000,11”-10,000, 13-5/8”-10,000,13-5/8”-15,000, 16-3/4”-10,000, 18-3/4”-10,000, 18-3/4”-15,000

LATCHEDHEAD

WEARPLATE

PACKINGUNIT

OPENCHAMBER

HEAD

OPENCHAMBER

LIFTING SHACKLES

CLOSINGCHAMBER

HYDRIL 536 HYDRIL

EASY TO MAINTAIN• No special tools required – all maintenance can be done

with standard tools.

• No hydraulic lines to disconnect during ram change.

• External piping eliminated by porting hydraulics through BOP body.

• Piston seal installation simplified by bidirectional seal design.

• Hydraulic fluid contamination eliminated by weep hole between wellbore ram shafts packing and hydraulic seal.

• All parts are interchangeable between 3000psi and 5000 psi Sentry models.

FLEXIBLE OPERATIONS • Visual determination of ram position through slots in

cylinder head and protective cover.

• Operates with a wide range of accumulator systems: less than 1500 psi closes the BOP with full working pressurein the bore.

• All wetted surfaces comply with NACE MR 01-75.

• Rugged, one-piece ram blocks available in a wide range of sizes.

OPTIONS• Two inch side outlet can be provided beneath each set

of rams.

• Double drilled 2000/3000 psi flanges.

• Stainless steel-lined connection ring grooves.

7-1/16” 3000-5000 psi SentryDual Workover Ram BOP

COMBINES EASY MAINTENANCE, OPERATIONAL FLEXIBILITY WITH A RANGE OF OPTIONS

SIZES AND PRESSURE RATINGS OF ANNULAR BLOWOUT PREVENTERS

Bore Size Working Pressure Ratings (psi)

(inches) 500 2,000 3,000 5,000 10,000 15,000 20,000

7-1/6 – MSP GK GK GK GK GK

9 – MSP GK GK – – –

11 – MSP GK GK GX GX –

13-5/8 – – GK GX/GK GX GX –

16-3/4 – – – GK – – –

18-3/4 – – – – GX – –

21-1/4 – MSP – – – – –

29-1/2 MSP – – – – – –

RAM BLOCK SIZES (In.)Pipe Variable

Blind 1.900 2-7/8 4-1/2 2-3/8 – 2-7/8

1.315 2-3/8 3-1/2 5.0

1.660 2-1/16 4.0 5-1/2

GX™ 13 5/8-10,000 psiAnnular BOP

Hydril MSP 21 1/42000 psi Latched Head BOP

Hydril GK™5000 psi Screwed Head BOP

HYDRIL 374 HYDRIL


1 1 Body 3116561

2 2 Pressure Plate 3116567

3 4 Right Bonnet 3116565

4 4 Left Bonnet 316566

5 4 Poston 3116571

6 4 Piston Rod 3116572

7 4 Cylinder 3116577

8 4 Right End Cover 3116563

9 4 Left End Cover 3116564

10 4 Lock Screw 3116576

11 4 Spool** 3116574

12 4 Spool** 3116575

13 4 Guide Pin 3116573

14 4 Lock Screw Cover 3116578

15 2 Ram Block (Assy.) 3116580-X

16 20 Stud 1900096-10040

17 20 Nut 1900183-10

18 4 Stud 1900195-06012

*19 4 O-Ring 1900002-442

20 8 Stud 1900195-04058

21 8 Hex Nut 1900196-04

22 16 Stud 1900095-08088

23 16 Hex Nut 1900036-08

24 16 Hex Hd. Cap Screw 1900097-04004

25 16 Lock Washer 1900159-09

26 4 Set Screw 1900121-408

27 4 Pipe Plug 1900131-06

26

Annular Blowout Preventers

Hydril 's complete line of annular blowout preventersis based on more than 55 years of applicationexperience in all BOP types, sizes, and pressure ranges.There is a Hydril Annular BOP to meet most operationalrequirements in the petroleum industry today, both on thesurface and subsea.

Hydril designs are durable for dependable and efficientoperation. A standard annular BOP will strip drill pipe andtool joints. The packing unit life is reduced when used forstripping operations. It will also close off the annulus or openhole to full working pressure.

The Hydril Annular BOP provides quick, positive closingaction with simplified controls to keep drilling fluids in thehole when a blowout threatens. The universal seal offfeature of the annular blowout preventer permits closure andseal off on drill pipe, kelly, tool joints, or tubing and wirelineas well as the open hole. Maintenance of the BOP is easy,rapid, and economical with the use of standard tools.

The Low Alloy Steel Pressure Vessel represents Hydril's50 years of experience in producing BOPs to provideoptimum strength and stress distribution control. Full-spectrum testing meeting or exceeding API require-ments ensures that the desired safety factors and reliabilityare provided in each unit.

Finite Element Analysis of the body design is themost advanced, in-depth technique of pressure vesseldesign analysis and ensures a structurally sound bodyconfiguration.

Shell (Hydrostatic) Testing of the BOP body meets theAPI accepted industry standards to provide a safe, reliableblowout preventer.

API 16A is the latest API specification covering drillthrough equipment. Hydril is licensed to manufactureBlowout Preventers to these exacting standards. In addition,Hydril preventers may also be certified by such certifyingauthorities as Det Norske Veritas (DNV), American Bureauor Shipping (ABS), or Lloyds of London.

Operating Chambers are Pressure Tested to ratedworking pressure of the BOP or 3000 psi, whichever isgreater. This ensures strength, reliability, safety, andthe ability to over-pressure the chambers in well-controlsituations.

Stainless Steel and Inconel-lined Ring Grooves are available as options.

Hydril GX™10,000 psi Annular Blowout Preventer

7-1/16” 3000-5000 psi SentryDual Workover Ram BOP Parts List

*Seal Kit Items ** Not Shown

1

2

3

4

56

7

8

9

10

13

14

15

16

17

1819

2021

23

25

27

293033

38

39

40

41

42

35

36

37

3

8

34

3034

22


28 4 Pipe Plug 1900066-03

*29 8 O-Ring 1900002-226

*30 8 O-Ring 1900002-255

*31 32 O-Ring** 1900002-017

*32 4 O-Ring 1900002-339

*33 4 Backup Ring 1920012-339

*34 8 Backup Ring 1920012-255

*35 8 Backup Ring 1920012-226

*36 4 T Seal TP049 1920004-427

*37 4 T Seal TR025 1920070-327

*38 4 T Seal TR029 1920070-331

*39 4 Wiper Ring 1920119-33

*40 8 Seal 1920073-134

*41 4 Energizer Ring 3100234-14

*42 4 Check Valve** 3103199

43 4 Set Screw** 1900056-1616

44 4 Top Seal - Pipe 3116587

44a 4 Top Seal - Variable 3116880

45 4 Front Packer-Pipe 3116586-X

45a 4 Front Packer-Variable 3116874

4 Handwheel** 3120085

4 U-Joint** 3120089

* 4 Ring Plastic Packing 3100233-14

* AR Plastic Packing 3100453

Kit – Seal Kit 3117169

Com. Assem. 7” 3,000 3116560-0101

Com. Assem. 7” 5,000 3116560-0202

HYDRIL 338 HYDRIL

Genuine Hydril rubber replacement parts. Hydril manufactures its own rubber for its blowout preventers and diverters. Hydril Elastomer and Industrial Products has set high industry standards of quality for today's oilfield.The combination of high standards of an original equipment manufacturer and years of specialty rubber experiencemean customers receive quality, durability, and serviceunmatched by general rubber suppliers. Purchasing genuineHydril parts to replace original rubber means customersreceive the reliable performance and long life they canexpect from their Hydril equipment.

Service and product support are based worldwide. Thecompany offers field servicemen at convenient locations toassist in the installation and maintenance of Hydril equip-ment. Hydril engineers evaluate operation of equipment inremote locations. For restoring mechanical equipment,Hydril sends engineers to the rig site, or a Hydril AuthorizedRepair Facility evaluates the condition of equipment andoffers recommendations for overhaul and repair.

Hydril's global base ensures that customers receiveresponsive support. Outside the United States, Hydril hasmajor facil i t ies for manufacturing in Canada,Scotland, Singapore and Mexico. In addition, Hydril has 19sales offices, 17 authorized independent repair facilities, andmanufacturers' representatives in over 60 countries.

In North America, there are 13 locations for repair, manu-facturing, field service, and sales.

At Hydril Elastomer and Industrial Products, modern laboratories use awide range of equipment for testing. Genuine Hydril rubber replacement partsprovide the quality and durability customers expect from their Hydril blowoutpreventers and diverters.

Hydril provides 24-hour-a-day field service after the sale. Hydril fieldservice and sales personnel are available around the clock. In addition,Hydril engineers consult at customer locations to solve technical problems.

A Certified Test Label is on every Hydril packing unit. The label indicatesthe unit was tested at full pressure on pipe and 50 percent of pressure onopen hole. Certifications of other tests are sent with the unit. Packagingresistant to both moisture and sunlight and a reinforced crate provide the bestprotection for shipping and storage. These measures ensure you will have thefinest quality packing unit when you are ready to use it.

Diverters

Hydril diverter systems are designed forstrength and simplicity to provide safeventing of shallow gas flows. Therugged equipment endures sustainedpunishment from erosion, impact, thrustand pressure loads. Hydril systems areactuated by a single hydraulic signal. Byeliminating sequencing malfunctions,integral venting substantially reducesthe risk of catastrophes. In the past,inoperative valves have caused many

accidents. Hydril diverter systems eliminate all these valvesincluding flowline valves, vent line valve, port/starboardvalves and fill-up valves.

Hydril diverters need no insert bushing and the packing elements can close on any pipe in the bore or on the open hole.

Hydril systems have accumulated years of service on numerous world class drilling rigs. Hydril has developed a variety of diverter systems to cover a wide range of rig configurations, well requirements and environmentalconditions.

Rig Survivability. Massive flows of gas and sand can quickly destroy a rig's diverter system. Hydril diverters arestout and built to endure the brutal blast of fluid, rocks andsand. They are thoroughly tested. Valves, insert cartridges, linkages and sequencing processes that frequently causemalfunction are completely eliminated.

Economical, easily installed and maintained.Quick connects, scope and spacer spools enable easy nipple-up and down. Hydril diverters use dependable annular packing units. They are routinely maintained andhandled in the same way as BOP's on the rig.

Hydril diverter equipment can be tailored to any rig,bottom founded, floating or tethered. Arrangements can bemade to permit diverting at the surface and/or subsea. Fullredundancy of surface-subsea options can significantlyenhance reliability.

Simplicity is derived from the patented integral vent designthat eliminates extraneous valves and interconnections.One command, a hydraulic signal, does it all. Upwardmotion of the piston stops the flow of the well fluid andopens the vent line. Fast response time is ensured, sincethere is no waiting for valve functions. Risk of malfunctionduring component sequencing is eliminated.

Subsea diverting provides safety advantages by dissipating destructive forces into the sea, remote from therig. Surface support is spared from impact and erosion.Safety of personnel and rig is enhanced.

For more information, ask for Catalog 9102 on Diverters.

FSP 28-2000 Diverter/BOP, a surface diverter system with integralventing for use on jack-ups, plat-forms, and submersibles.

FS 21-500 Diverter System with integral venting for use on semisub-mersibles, drillships, and platforms.(Available for 49-1/2” and 60” rotarytables.)

SXV Diverter Spool with integralventing for use with large bore(20”-30” range) annular blowoutpreventer. This spool can be usedfor surface or subsea diverting.

GH Gas Handler is a specializedannular closing device for deepwaterfloating drilling. The GH is locatedbelow the telescopic joint, and it hasintegral valving to permit circulatingmud to neutralize a gas intrusiontrapped in the riser above the BOP’s.

R

Subsea Diverter Stack permits subsea diverting, circulation of killmud or shearing of pipe, and dis-connecting of the riser as alternativemeans of dealing with shallow gas from a floating rig.

12’ or 16” Flow Selector is a massive two-position target for selecting port/starboard venting.

HYDRIL 392 HYDRIL

Continuing leadership in quality, service and new technology since 1933

Specializing in high pressure and severe applications,Hydril's standard of quality has lead the oil tool industrysince the company was established in 1933. Hydril's innova-tive tradition began in the 1930's when it developed the firsthydraulically operated blowout preventer, the annularblowout preventer, and the 2-step high performance connec-tion. Hydril has continued to invest in substantial researchand development. Hence, Hydril designs and products continue to lead the industry into new frontiers of high pres-sure, high temperature service. When purchasing Hydrilequipment, customers can be assured they are enjoyingvalue and reliability for today's most critical applications.

Advanced engineering means reliable assurance of product performance. Hydril simulates field conditions andtests products for specific applications of high pressure, tem-perature, and stress, supporting Hydril's efforts to innovateand improve product performance.

Extensive computerization provides engineers with the capa-bility to evaluate testing and design equipment systems.Finite element analysis provides computer models to predictproduct performance in the field, which are double checkedby testing. CAD packages size and customize systems forspecific applications. Reliability analysis ensures that sys-tems will function when required.

Customers benefit from reliable engineeringassistance. Hydril engineers help customers select appro-priate equipment, material and design after evaluation offield applications. Hydril's engineering resources includeyears of metallurgical experience in high pressure service. Inmany cases, Hydril engineers evaluate products continuallyafter installation.

Hydril's quality control measures are exacting. Large or small, every partof a Hydril product is checked repeatedly to make sure it is exactly asdesigned.

Hydril's quality management system meets worldwide stan-dards. The ISO 9001 Certificate means Hydril has met acceptedinternational standards for marine and offshore products, structuraland mechanical metal products, and pressure vessels. Other certi-fications include API 16A for the latest, most exacting specificationon drill through equipment; Det Norske Veritas (DNV), AmericanBureau of Shipping (ABS), and Lloyds of London. Hydril's manu-facturing plants are based worldwide to respond to regional needs.

BOP/Diverter Control Systems

Conventional Hydraulic Subsea Control Systems:Based upon proven design concepts, components and subsea experience. This category includes shallow-to-medium-depth systems, generally down to the 3,000foot range of water depth.

SURFACE CONTROL SYSTEMS FORBLOWOUT PREVENTERS

Conventional Surface Control Systems:Hydril offers control for blowout preventers used during surface drilling projects, from workover to stan-dard drilling operations.

• Reliable: Field-proven in worldwide drilling opera-tions, using components which have passedextended life cycle testing.

• Rugged: Hydril’s experience in hostile environments provides the know-how to tailor a system to anyrequirements.

• Serviceable: Field-proven performance also includesdesigns that allow fast, effective service and repair.

MULTIPLEX AND HYDRAULIC CONTROL SYSTEMS FOR SUBSEA BLOWOUT PREVENTER STACKS

Multiplex controlled BOP stack, raised from an underwater depth of morethan 6,000 feet. (Transocean Offshore Inc. Discoverer Seven Seas

Electro-pneumatic system for controlling BOPs.

Multiplex SubseaControl Systems:

State-of-the-art micro-processor-based multiplex control tech-niques use software andmicroelectronic circuitry toprovide fast response and redundancy. Painstakingmechanical design andspecially selected con-struction materials provideeasy maintenance andsuperior protection for thesystem, to water depths of10,000 feet or more.

Hydril BOP stack on Smedvig’s Drillship West Navion rated for10,000 foot water depth.

Product Design. Skilled engineers utilize advanced computer techniques forproduct design and analysis.

HYDRIL 140 HYDRIL

Service

Hydril provides fast delivery and quick turnaround on reman-ufactured equipment by buying used BOPs, rebuilding them,and maintaining an inventory. These BOPs meet Hydril’shigh performance standards for used equipment, but theycost less than a new blowout preventer. Customers receive

value, quality, reliability, and economy.There is no comparison between aHydril remanufactured BOP and otherused BOPs on the market. All Hydrilremanufactured BOPs carry a 12 monthwarranty. An owner’s certification bookdocuments all inspections, charts oftests, and manufacturing procedures.

Hydril buys selected used BOP equip-ment and parts for remanufacturing.Hydril has strict procedures for theremanufacturing process, taking noshortcuts to value, quality, and reliability.All remanufacturing is closely controlledon a dedicated line in Houston, Texas.

Hydril products are supported by a worldwide network ofindependent Authorized Repair Facilities equipped to pro-vide comprehensive service for the company’s ram andannular blowout preventers, pulsation dampeners and drillstem valves.

In most circumstances, Hydril evaluates and services BOPsat regional Repair Service Centers. In remote locations, aHydril serviceman can inspect at the rig site and can oftensupervise local repair work at a selected regional shop. Thisminimizes down time and costly shipping expenses.

Hydril supports its products and its customers through aglobal network of service and manufacturing facilities. InHouston, Hydril operates three manufacturing plants. OtherU.S. based locations offer field service assistance and salesexpertise. Hydril has a worldwide presence with internation-al sales offices, field service personnel, Authorized RepairFacilities and manufacturer’s representatives.

Hydril servicemen install new Hydril rubber packing unit, seals, and head to a remanufactured 21-1/4” annular blowout preventer.

FOR RAM AND ANNULAR BLOWOUT PREVENTERS, PULSATION DAMPENERS, AND DRILL STEM VALVES

For more information,request the brochure,Hydril RemanufacturedEquipment andOverhaul and RepairServices.

On Cover: 18 3/4” 15000 psi CompactTM Ram Subsea BOP Stack with multiplex control pods.

REMANUFACTURED EQUIPMENT ANDOVERHAUL AND REPAIR SERVICES

Table of Contents

DIVERTERS

MSP Diverter . . . . . . . . . . . . . . . . . 14

Diverters . . . . . . . . . . . . . . . . . . . . . 38


GAS HANDLER

GH Gas Handler . . . . . . . . . . . . . . . 38

BOP CONTROL PODS


ANNULAR BLOWOUT PREVENTERS

Introduction . . . . . . . . . . . . . . . . . . 4

GX Annular . . . . . . . . . . . . . . . . . . . 6

GK Annular BOP. . . . . . . . . . . . . . . . 10

MSP BOP . . . . . . . . . . . . . . . . . . . . 14

Packing Units . . . . . . . . . . . . . . . . . 20

Service . . . . . . . . . . . . . . . . . . . . . . 40


RAM BLOWOUT PREVENTERS

Introduction . . . . . . . . . . . . . . . . . . 21

Ram Locking Systems . . . . . . . . . . . 24

Ram Sizes and Styles. . . . . . . . . . . . 26

Compact Blowout Preventers . . . . . . 28

Sentry Workover Ram . . . . . . . . . . . 36

Service . . . . . . . . . . . . . . . . . . . . . . 40


HYDRIL 41

Reliable Replacement Parts

HYDRIL MANUFACTURES PARTS IN A FULL RANGE OF SIZES, PRESSURE RATINGS AND ELASTOMERS.

Diaphragms for PulsationDampeners

Packing Unit and Seals for Annular Blowout Preventers

Hydril Variable Ram (HVR) Packer

Bonnet Seal for Ram BOP

Top Seal for Hydril Variable Ram (HVR)

Diverter Packing Unit and Seals

LL Packing Unit MD Packing Unit

Ram Blocks and Rubber for Ram Blowout PreventersHydril is a registered trademark and service mark.GK, GL, GX, Checkguard, MSP, Compact and Bettis are registered trademarks.

© 2004 Hydril Company LP All Rights Reserved.

Hydril Company engineers, manufactures and markets premium

connections and pressure control products for oil and gas

drilling and production. Since 1933, Hydril has been redefining

reliability in these markets, developing successive generations of

products that make it safe, practical and profitable to produce

energy, even under the most challenging conditions. Hydril's first

objective is to anticipate the needs of our customers and exceed

their expectations everyday.

Blowout PreventersCatalog M-9402 D

Houston, Texas 281.449.2000

www.hydril.com

[email protected]

R E D E F I N I N G R E L I A B I L I T Y T M

Blowout PreventersCATALOG M-9402 D

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