LORD® SoftShoeTM Isolator Use and Maintenance Manual

USER MANUAL

OIL & GAS TECHNOLOGY | LORD CORPORATION

ii

SoftShoe Isolator Use and Maintenance Manual

Table of Contents1.0 Introduction ................................................................................1

2.0 Function .....................................................................................1

3.0 Assembly into MWD/LWD Tool String ......................................13.1 Mechanical .............................................................................13.2 O-Ring Placement ..................................................................13.3 UBHO Requirements .............................................................23.4 Muleshoe Landing Sleeve Requirements ..............................33.5 Location in MWD String ..........................................................4

4.0 Operating Parameters ...............................................................44.1 Maximum Operating Conditions .............................................44.2 Maximum Static Loads ...........................................................44.3 Explosive Decompression ......................................................4

5.0 Parts List ....................................................................................5

6.0 Redress Kits ..............................................................................6

7.0 Recommended Service Kit Stock ............................................7

8.0 Field Checks and Maintenance ................................................78.1 Overall Length (OAL) Inspection [Shoulder-to-Shoulder] ......7

9.0 Service Tools ..............................................................................89.1 Standard Tools ........................................................................89.2 Special Tools ..........................................................................9

10.0 Service Instructions ................................................................1010.1 Disassembly .........................................................................1010.2 Assembly ..............................................................................12

Listing of TablesTable 1: UBHO Drawings ........................................2Table 2: Muleshoe Landing Sleeve Drawings .........3Table 3: Maximum Operating Conditions ................4Table 4: Maximum Static Loads ..............................4Table 5: Medium SoftShoe Parts List .......................5Table 6: Large SoftShoe Parts List ..........................5Table 7: Medium SoftShoe Basic Redress Kits .......6Table 8: Large SoftShoe Basic Redress Kits ...........6Table 9: Suggested Stock .......................................7Table 10: OAL Shoulder-to-Shoulder .......................7Table 11: Installation Torque ....................................8Table 12: Thread Lubricants & Locker ....................8Table 13: Required Standard Tools .........................8Table 14: Special Tools ............................................9

Listing of FiguresFigure 1: O-Ring Placement .........................................1Figure 2: SoftShoe Assembly in UBHO ........................2Figure 3: UBHO Critical Geometry ...............................2Figure 4: Y-65057-3-1/ Y-65248-3-1 Altered Muleshoe, 1-Piece Bottom Sleeve ..............3Figure 5: Y-65057-2-1/ Y-65248-2-1 Altered Muleshoe, 1-Piece Bottom Sleeve ..............3Figure 6: Y-65057-2-1/ Y-65248-2-1 Altered Muleshoe, Bottom Sleeve with Insert ..........3Figure 7: SoftShoe Isolator Location in UBHO .............4Figure 8: J-28542-31/ -35 SoftShoe Shoulder-to- Shoulder Length ..........................................7Figure 9: Internal Joints ...............................................8Figure 10: External Joints ............................................8Figure 11: Torque Wrench, Assembly Tool, Pin Wrench (Preferred Tools) ..........................................8Figure 12: Friction Vise (ZV55-54) (Preferred Tool) ......9Figure 13: Chain Vise (Optional Tool) ...........................9Figure 14: Gearench C27-34-F Chain Wrench (Optional Tool) .............................................9Figure 15: FAS-64603-2 / -3 Assembly Tool ..................9

1

SoftShoe Isolator Use and Maintenance Manual

1.0 IntroductionLORD® J-28542-31 and J-28542-35 MWD Tool SoftShoeTM

Isolators (patent pending) are designed for service in air, foam, or

mud drilling operations. The use and maintenance requirements

are summarized in this document. The Medium and Large

SoftShoe Isolator components differ slightly to ensure that the

most appropriate design is used to yield the highest reliability and

longevity.

2.0 FunctionThe LORD J-28542-31 / J-28542-35 MWD Tool SoftShoe Isolator

(herein referred to as the SoftShoe Isolator) is designed to protect

the sensitive electronics in an MWD string by isolating these

components from mid-range and high frequency vibrations. The

isolator will also attenuate certain levels of shock inputs.

3.0 Assembly into MWD/LWD Tool String

3.1 MechanicalThe Isolator has been designed to be assembled into the UBHO

using standard 3/4-10 UNC grub screws and standard o-rings.

3.2 O-Ring PlacementRefer to Figure 1.

Figure 1: O-Ring Placement(4) O-rings No O-rings

2

3.3 UBHO RequirementsThe SoftShoe Isolator requires the use of a UBHO that has a

sufficient bore depth to accommodate the additional 8.25" of

length added to the Muleshoe Landing Sleeve, such that it will

not protrude into the connection. This ensures that the MWD and

Muleshoe Landing Sleeve itself are not subject to high wash.

The standard UBHO o-ring gland area without the SoftShoe is

approximately 4 inches long. When adding the SoftShoe Isolator in

the UBHO, the gland area is increased to 7 inches in length. The

o-rings are now installed on the SoftShoe instead of the Muleshoe

Landing Sleeve. This allows the Muleshoe Landing Sleeve to

move freely. The gland geometry is critical in order to sufficiently

seal. UBHO drawings are available through LORD.

Figure 2: SoftShoe Assembly in UBHO

Figure 3: UBHO Critical GeometryCritical Geometry

Gap to allow Movement

Table 1: UBHO Drawings

Medium Drawing Number

Large Drawing Number

Short Description

Y-65248-1 Y-65057-1 UBHO

3

3.4 Muleshoe Landing Sleeve RequirementsThe Isolator requires the use of a standard muleshoe landing

sleeve that has been altered. The modification involves adding

threads to the downstream end of the Muleshoe Landing Sleeve

to attach to the SoftShoe Isolator. Alternatively, Muleshoe Sleeves

can be made new in this configuration, in which case, the external

o-ring grooves may be eliminated. Drawings detailing this

modification are available from LORD.

Table 2: Muleshoe Landing Sleeve Drawings

Medium Drawing Number

Large Drawing Number

Short Description

Y-65248-2-1 Y-65057-2-1 Altered Muleshoe Landing Sleeve

Y-65248-3-1* Y-65057-3-1* Altered Muleshoe Landing Sleeve

*The 3-1 configurations are recommended for optimum performance.

There are two acceptable modifications for both the large and

medium altered muleshoe landing sleeves. The Y-65248-2-1

(Medium) and Y-65057-2-1 (Large) utilize the standard snap ring

to retain the Bottom Sleeve into the Muleshoe Landing Sleeve.

The Y-65248-3-1 (Medium) and Y-65057-3-1 (Large) are sized

such as to trap the Bottom Sleeve in the Muleshoe Landing Sleeve

by shouldering on the SoftShoe Isolator [Joint B]. The Y-65248-3-1

and Y-65057-3-1 are recommended for use as they have the most

consistent ID, minimizing wash. In either configuration, a solid

Bottom Sleeve is recommended in lieu of a Bottom Sleeve and

Insert, again due to wash considerations.

Best

Figure 4: Y-65057-3-1 / Y-65248-3-1 Altered Muleshoe, 1-Piece Bottom Sleeve

Better

Figure 5: Y-65057-2-1 / Y-65248-2-1 Altered Muleshoe, 1-Piece Bottom Sleeve

NotRecommended

Figure 6: Y-65057-2-1 / Y-65248-2-1 Altered Muleshoe, Bottom Sleeve with Insert

4

Figure 7: SoftShoe Isolator Location in UBHO

3.5 Location in MWD StringThe Isolator has been designed to support the MWD string and

attach directly to the downstream end of the Muleshoe Landing

Sleeve located in the UBHO sub. This can be seen in detail in the

illustrated view drawings available from LORD.

4.0 Operating Parameters

4.1 Maximum Operating ConditionsThe Isolator was designed for the operating conditions shown in

Table 3.

Table 3: Maximum Operating Conditions

Temperature 350°F maximum

Pressure N/A

The Isolator can withstand temperatures of 350°F and beyond;

however, extended periods of exposure to this extreme condition

should be avoided. Prolonged exposure to consistent elevated

temperatures (>280°F) will accelerate the degradation of the

elastomer package, reducing the elastomer’s overall useful life.

Elastomer Kits rated for high temperature use are available,

please contact your LORD representative for details.

The Isolator has no pressure rating limitations as it is pressure

compensated with the downhole environment.

4.2 Maximum Static LoadsThe maximum loads for the Isolator are shown in Table 4. Note

that the recommended assembly torque is 350 ft-lbs, well below

the maximum torque.

Table 4: Maximum Static Loads

Maximum Torque 500 ft-lb

Axial Load (Fishing Load) 20,000 lb

4.3 Explosive DecompressionThe Isolator was not designed to function following an explosive

decompression event. If any such event should occur, the Isolator

should be removed from use, completely broken down, assessed

for damage, and any damaged components replaced.

Downhole

UBHO

SoftShoe Isolator

Altered Muleshoe Landing Sleeve

5

5.0 Parts ListThe Isolator consists of the items shown below, in Table 5 or 6. Full

Exploded Views and Installation Views are available as part of the

Customer Copy drawings available from LORD.

Table 5: Medium SoftShoe Parts List

Part Number Qty Full Item Description

J-28542-31 X SoftShoe Isolator, Generation 5.1

J-28460-41 1 Elastomer Kit

J-28460-44*** 0 Elastomer Kit, High Temperature

J-28460-43 1 Hardware Kit

J-28460-37 1 Dowel Pin Kit (6 Pins)

Y-64554-64-1 1 Wear Band

Y-64554-78-1 1 Seal

Y-64554-42-1 1 Housing

Y-64554-55-1 1 UBHO Adapter

Y-64554-60-1 1 Drive Washer

Y-64554-61-1 1 Sleeve

Y-64554-63-1 1 Upper Muleshoe Adapter

- KOPR KOTE

- DOW Corning 111 Lubricant

- LOCTITE 243

*** Alternative to J-28460-41 Elastomer Kit.

Table 6: Large SoftShoe Parts List

Part Number Qty Full Item Description

J-28542-35 X SoftShoe Isolator, Generation 5.1

J-28460-60 1 Elastomer Kit

J-28460-61*** 0 Elastomer Kit, High Temperature

J-28460-62 1 Hardware Kit

J-28460-37 1 Dowel Pin Kit (6 Pins)

Y-64554-70-1 1 Wear Band

Y-64554-77-1 1 Seal

Y-64554-72-1 1 Housing

Y-64554-71-1 1 UBHO Adapter

Y-64554-75-1 1 Drive Washer

Y-64554-73-1 1 Sleeve

Y-64554-74-1 1 Upper Muleshoe Adapter

Y-64554-76-1* 1 Ceramic Insert

- KOPR KOTE

- DOW Corning 111 Lubricant

- LOCTITE 243

* Component unique to the large J-28542-35 SoftShoe.

*** Alternative to J-28460-61 Elastomer Kit.

6

6.0 Redress KitsCertain components on the Isolator are intended to be replaced

on a regular basis. These items can be purchased as part of a

basic redress kit, see Table 7 or 8. Additionally, major metals are

available for purchase - refer to the Y-64554-XX Part Numbers

listed in Table 5 or 6.

Table 7: Medium SoftShoe Basic Redress Kits

Kit Number Kit Description Qty Component Part Number

Description

J-28460-41 Elastomer Kit1 J-28542-24 Elastomer Stack, Compression

1 J-28542-25 Elastomer Stack, Rebound

J-28460-44 HT Elastomer Kit1 J-28542-33 HT Elastomer Stack, Compression

1 J-28542-34 HT Elastomer Stack, Rebound

J-28460-43 Hardware Kit

1 Y-64554-64 Wear Band

1 J-28460-37 Dowel Pin Kit

1 Y-64554-78 Seal

J-28460-37 Pin Kit 6 LSTP9-18-10 Dowel Pins

Table 8: Large SoftShoe Basic Redress Kits

Kit Number Kit Description Qty Component Part Number

Description

J-28460-60 Elastomer Kit1 J-28542-36 Elastomer Stack, Compression

1 J-28542-237 Elastomer Stack, Rebound

J-28460-61 HT Elastomer Kit1 J-28542-38 HT Elastomer Stack, Compression

1 J-28542-39 HT Elastomer Stack, Rebound

J-28460-62 Hardware Kit

1 Y-64554-70 Wear Band

1 J-28460-37 Dowel Pin Kit

1 Y-64554-77 Seal

J-28460-37 Pin Kit 6 LSTP9-18-10 Dowel Pins

7

7.0 Recommended Service Kit StockLORD recommends that certain service kit items be put in stock

by the users of the Isolator to facilitate quick repair or replacement

of wear items. This section will detail the recommended kits and

quantities that should be kept on hand.

Quantities of each kit are given per number of Isolators in service

(see Table 9). For example, for each SoftShoe Isolator in service,

two (2) Hardware Kits are recommended to be kept in stock. For

some lower wear items, a single kit can support several Isolators.

Table 9: Suggested Stock

Medium SoftShoe Part Number

Large SoftShoe Part Number

Short DescriptionSuggested Stock

Quantity per Isolator(s)

J-28460-41 J-28460-60** Elastomer Kit 1 2

J-28460-43 J-28460-62* Hardware Kit 2 1

Y-64554-42-1 Y-64554-72-1 Housing 1 5

Y-64554-55-1 Y-64554-71-1 UBHO Adapter 1 5

Y-64554-63-1 Y-64554-74-1 Muleshoe Adapter 1 5

Y-64554-61-1 Y-64554-73-1 Sleeve 2 1

Y-64554-60-1 Y-64554-75-1 Drive Washer 1 5

N/A Y-64554-76-1 Ceramic Insert 1 5

* Customer’s discretion to be used, alternatively individual components could be stocked in lieu of hardware kit.

**Alternative versions could be stocked in place.

8.0 Field Checks and Maintenance

8.1 Overall Length (OAL) Inspection [Shoulder-to-Shoulder]The nominal starting gap between the Housing and Muleshoe

Adapter on the Isolator is 0.395-0.375 inches long when measured

shoulder-to-shoulder as shown in Figure 8. Between runs, the

length can be checked as a reference using the below method.

The tool should be fully inspected and evaluated in between runs

or after 400 hours, whichever comes first.

Table 10: OAL Shoulder-to-Shoulder

Nominal 0.395 - 0.375 inches

Minimum 0.280 inches

The anti-rotation feature should also be checked before the

Isolator is run below the rotary table. To do so, attempt to manually

rotate the Isolator. If the part rotates, tear down the Isolator and

ensure pins are installed and are in working condition.

Figure 8: J-28542-31 / -35 SoftShoe Shoulder-to-Shoulder

Length

8

Table 11: Installation Torque

Joint Installation Torque

A 350 ft-lb

B 350 ft-lb

C 150 ft-lb

Table 12: Thread Lubricants & Locker/Sealant

Joint Lubricant/Thread Locker/Thread Sealant

A KOPR KOTE

B KOPR KOTE* or LOCTITE 243

C LOCTITE 243

*KOPR KOTE recommended.

9.0 SERVICE TOOLS

9.1 Standard ToolsThe Isolator was designed to be assembled and disassembled

using primarily standard tools.

Pipe wrenches shall NOT be used during assembly or

disassembly of the Isolator. Additionally, torches or similar heat

generating devices shall NOT be used in an attempt to loosen

joints.

Table 13: Required Standard Tools

SoftShoe Size

Size Tool Description Part Number

Large 3.75 inch Friction Vise Petol Gearench: ZV55-54

Large 3.75 inch Friction Vise Inserts Petol Gearench: ZUV55:3.750 – modified, trimmed to OAL of 4.5"

Medium 3.125 inch Friction Vise Inserts Petol Gearench: ZUV55:3.125 - modified, trimmed to OAL of 4.5"

Both — Chain Vise

Both 3/8 dia Pin Pin Wrench LORD: J-28542-5

Both — Chain Wrench Petol Gearench: C27-34-F

Large 3.75 inch Friction Tong Petol Gearench: ZT5:3.750

Medium 3.125 inch Friction Tong Petol Gearench: ZT5:3.125

Both 1/2 Drive Breaker Bar or Ratchet

Both 1/2 Drive Torque Wrench

Preferred Tool Alternate Tool

Figure 9: Internal Joints Figure 10: External Joints

Joint C

Joint A

Joint B

Figure 11: Torque Wrench, Assembly Tool, Pin Wrench (Preferred Tools)

9

9.2 Special ToolsSpecialized tools are used to assist in the assembly of the Isolator

and are available directly from LORD. These tools are shown in

Table 14.

Table 14: Special Tools

SoftShoe Tool No. Tool Description

J-28542-31 (Medium) FAS-64603-2 Drive Nut Socket, Medium

J-28542-35 (Large) FAS-64603-3 Drive Nut Socket, Large

FAS-64603-2 / -3 is a socket used to install the drive washer.

(FAS-64603-2, Medium is pictured)

Figure 12: Friction Vise (ZV55-54) (Preferred Tool) Figure 13: Chain Vise (Optional Tool)

Figure 14: Gearench C27-34-F Chain Wrench (Optional Tool)

Figure 15: FAS-64603-2 / -3 Assembly Tool

10

10.0 SERVICE INSTRUCTIONSThis section provides detailed instructions on assembling,

disassembling, and servicing the Isolator. Included are

photographs depicting these processes.

Note: Varying part materials are shown in the following images,

but the product’s actual materials are consistent with previous

assembly representations.

10.1 Disassembly1. Secure Housing (Y-64554-42 / -72) in vise. Remove the

Muleshoe Landing Sleeve from the SoftShoe.

2. Secure Housing (Y-64554-42 / -72) in vise. Housing must be

the only component in contact with the vise.

3. Remove the UBHO Adapter (Y-64554-55 / -71) [Joint A].

11

4. Remove the Compression Elastomer Stack (J-28542-24 / -33,

J-28542-36 / -38).

5. Remove the Drive Washer (Y-64554-60 / -75) and Sleeve

(Y-64554-61 / -73) using the Assembly Tool (FAS-64603-2 / -3)

[Joint B].

6. Remove the Rebound Elastomer Stack (J-28542-25 / -34,

J-28542-37 / -39).

12

7. Slide apart the Muleshoe Adapter (Y-64554-63 / -74) from the

Housing.

8. Remove the (6) Dowel Pins (J-28460-37) and Seal (Y-64554-77

/ -78).

9. Remove Wear Band (Y-64554-64 / -70) from UBHO Adapter

(Y-64554-55 / -71).

10.2 Assembly1. Install Wear Band (Y-64554-64 / -70) into UBHO Adapter

(Y-64554-55 / -71).

13

2. **Large SoftShoe (J-28542-35) Only**

Install the Wash Insert (Y-64554-76) into the Muleshoe Adapter

(Y-64554-74) using Blue Loctite 243.

3. Install the Seal (Y-64554-77 / -78) onto the Muleshoe Adapter

(Y-64554-63 / -74).

4. Grease Dowel Pin Grooves, Install (6) Pins (J-28460-37) into

Muleshoe Adapter (Y-64554-63 / -74).

5. Slide the Housing (Y-64554-42 / -72) onto the Muleshoe

Adapter (Y-64554-63 / -74).

6. Install the Rebound Elastomer Stack (J-28542-25 / -34,

J-28542-37 / -39).

7. Install the Sleeve (Y-64554-61 / -73) into the Drive Washer

(Y-64554-60 / -75).

14

8. Apply Loctite 243 to the Drive washer (Y-64554-60 / -75) and

install.

9. Torque Drive Washer (Y-64554-60 / -75) to 150 ft-lbs with

Assembly Tool (FAS-64603-2 / -3).

15

10. Install the Compression Elastomer Stack (J-28542-24 / -33,

J-28542-36 / -38).

11. Install the UBHO Adapter (Y-64554-55 / -71) with Kopr Kote

and torque to 350 ft-lbs.

LORD provides valuable expertise in adhesives and coatings, vibration and motion control, and magnetically responsive technologies. Our people work in collaboration with our customers to help them increase the value of their products. Innovative and responsive in an ever-changing marketplace, we are focused on providing solutions for our customers worldwide.

LORD Corporation World Headquarters111 Lord DriveCary, NC 27511-7923 USA

Customer Support Center (in United States & Canada)+1 877 ASK LORD (275 5673)

www.lord.com

For a listing of our worldwide locations, visit LORD.com.

Houston Area Office 2455 FM 2920Suite BSpring, TX 77388

Phone: +1 855 796 1595

©2019 LORD Corporation OD UM1003 | MRO-00004 (Rev.0 4/19)

No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system or translated into any language in any form by any means without written permission of LORD Corporation.

LORD and SoftShoe are trademarks of LORD Corporation or one of its subsidiaries.