completion solutions - welltec · welltec’s completion solutions ... at the heart of the...

1

COMPLETION SOLUTIONS

2 3

Welltec’s Completion Solutions (WCS) segment is pleased to in-troduce the Flex-Well®, a completion technology architecture that provides operators the flexibility to design and install the optimal completion for their budgets and reservoirs.

At the heart of the Flex-Well® completion is the Welltec® Annular Barrier, a rugged, large expansion ratio, expandable metal barrier that can be used for a wide variety of applications including zonal isolation, cement assurance and sustained casing pressure protec-tion. Qualified in accordance with ISO14310 V3 (or V0) validation grade and manufactured in accordance with ISO9001 the WAB® is designed to deliver outstanding performance across a wide range of operating conditions.

EXPLORE YOUR OPTIONS!

FLEX-WELL® TRANSFORM YOUR WELL

Architecture 4

Welltec® Annular Barrier 6

Qualifications 8

Welltec® Flow valve 10

Applications 12

Welltec® Data Monitoring 14

Case Stories 16

SPE Papers 22

COMPLETION SOLUTIONS

LOWER COST,REDUCED CAPEX,HIGHER PRODUCTION – ABSOLUTELY.

At Welltec’s Transformation Center,

based in Denmark’s energy capital, Esbjerg, we have the manufacturing capacity and

facilities to deliver high quality completion products and

components on short notice

LOWER COST,REDUCED CAPEX,HIGHER PRODUCTION – ABSOLUTELY.

4 5

SECONDARY PRODUCTION

Optimize production over the life of the well for maximum

recovery

ABANDONMENTCost effective

approach built in from the start

Noun ...COMPLETION TECHNOLOGY

ARCHITECTURE

Definition... The process of devel-oping completion methods which incorporate the latest technologi-cal advancements within a holistic

framework to achieve the best completion design

5

HOW TO TRANSFORM THE INDUSTRY

COMPLETION TECHNOLOGY ARCHITECTURE

FLEX-WELL®

Fast track and build wells which produce more, drain larger areas and won’t require interventions for years to come. The higher pro-duction and drainage per well enables you to reduce the number of platforms or pad sites required, significantly reducing overall CAPEX.

The Flex-Well® completion design provides all these benefits while simultaneously offering an approach that results in fewer people re-quired, less complex operations and smaller amounts of equipment deployed for shorter amounts of time.

Simply put, higher recovery in a safer, more sustainable way.

EXPLORATION

Mitigate theuncertainties

due to reservoir characterization

PRIMARY PRODUCTION

Higher initial pro-duction rates gener-ate better return on

invested capital

DEVELOPMENTReduce overall CAPEX and fast track produc-tion while drilling and

completing wells faster and safer

The Flex-Well® design provides unique benefits throughout

the life of the well

4

FLEX-WELL®

Fast track and build wells which produce more, drain larger areas and won’t require interventions for years to come. The higher pro-duction and drainage per well enables you to reduce the number of platforms or pad sites required, significantly reducing overall CAPEX.

The Flex-Well® completion design provides all these benefits while simultaneously offering an approach that results in fewer people re-quired, less complex operations and smaller amounts of equipment deployed for shorter amounts of time.

Simply put, higher recovery in a safer, more sustainable way.

5

6 7

The WAB’s metal construction provides a fast, high expansion, rugged seal against the open hole or casing irrespective of the fluid in the well. Furthermore, as shown in the chart, there is no degradation of the maximum delta P capability versus ex-pansion diameter.

mounted on base pipe

hydraulic expansion controlled from surface

in place for the life of the well

HOW IT WORKS...

PRODUCT OVERVIEWWELLTEC® ANNULAR BARRIER

WAB® FOR ZONAL ISOLATION, WELL INTEGRITY & CEMENT ASSURANCE

The Welltec® Annular Barrier (WAB®) offers the oil and gas industry the next generation annular barrier solution, providing an expand-able metal based barrier to prevent annular flow and to ensure well integrity.

The WAB® is a rugged, large expansion ratio metal barrier that can be used for a wide variety of applications. The standard product is qualified in accordance with ISO14310 V3 (or V0) validation grade and manufactured in accordance with ISO9001. It is designed to de-liver outstanding performance across a wide range of operating con-ditions for reduced risk and well construction costs. The WAB® can be run standalone or in combination with other Flex-Well® compo-nents and is designed for life of well applications. Welltec® Annular Barrier’s for surface casing pressure mitigation have been qualified in accordance with ISO14310 V0 validation grade and compliance with NORSOK D10 guidelines.

APPLICATIONS · Zonal isolation within the reservoir or between adjacent zones · Well integrity providing a standalone or combined primary /

secondary well barrier

· Open hole, cased hole and hostile environmentsFEATURES: · Rapid, surface controlled, hydraulic expansion · Large, stable differential pressure rating across full setting range · Low profile, small running OD · High expansion ratio · Rugged, metallic construction · NACE compliant material selection for life-of-well performance · Full bore diameter throughout

BENEFITS · No waiting on swell and no risk of premature setting · Seals in gauge, oval or washed-out holes · Minimal impact on ECD · Removes the need for cement · Designed for rotation during deployment · Deployable through milled window · Applicable for ultra-short radius sidetracks · Maximum fluid circulation · Enables future access and re-entry to TD · Removes channels or leak paths at set depth

Max Delta P

OH Diameter

THE WAB® DELIVERS MAX DELTA Pover a wide range of hole sizes

...while CONVENTIONAL annular barriers have a DECREASING MAX DELTA P as the hole size increases

12”12 1/4”0

WAB® Delta PConventional annular barrier Delta P

12 1/2” 14”

8 9

QUALIFIED PRODUCTS – WAB® ALL THE NUMBERS

8

Just like the many challenges to which it has been successfully applied, the number of quali-fied Welltec® Annular Barrier products just keeps growing.

Welltec® Completion Solutions provides a wide range of WAB’s, available off-the-shelf and ready to run in nomi-nal hole sizes from 5 ¾” to 12 1/4” ID, open hole or cased. All our WAB’s are qualified to ISO14310 V3 and manufactured to ISO9001. Several WAB’s have also been qualified to ISO14310 V0 validation grade standards for unmatchable well integrity capabilities.

And if there isn’t an existing WAB® to fulfill your exact needs, Welltec® has the flexibility to make and qualify new products using in-house design, engineering and manufacturing resources.

Our facilities at the Esbjerg Transformation Center incorporate state-of-the-art quality

processes including full material traceability, controlled time/work/material interaction with

full record keeping, robotic manufacturing and 24 hour, anytime/anywhere video witnessing.

Built to deliver outstanding performance across a wide range of op-erating conditions for reduced risk and well construction costs, the Welltec® Annular Barrier stands alone.

The chart on the right demonstrates the different, nominal hole sizes for which WAB’s have been qualified while the text provides an overview description of the main properties that the WAB® is ca-pable of delivering for that hole size. In many of the sizes, multiple versions have been developed for different applications.

9

Nominal hole size: 12 1/4"Expands up to: 14"Max Delta P (inject:produce) kpsi: 6:6Max Temp: 275º F Number of versions:

Nominal hole size: 5 3/4"Expands up to: 6.5"Max Delta P (inject:produce) kpsi: 10:10Max Temp: 320º F

Nominal hole size: 6"Expands up to: 7"Max Delta P (inject:produce) kpsi: 10:9Max Temp: 320º F Number of versions:

Nominal hole size: 6 1/4"Expands up to: 7.5"Max Delta P (inject:produce) kpsi: 4.5:2.5Max Temp: 275º F


Nominal hole size: 8 1/2"Expands up to: 10"Max Delta P (inject:produce) kpsi: 10:10Max Temp: 572º FNumber of versions:


Nominal hole size: 12 1/4"Expands up to: 14"Max Delta P (inject:produce) kpsi: 6:6Max Temp: 275º F Number of versions:


Nominal hole size: 6"Expands up to: 7"Max Delta P (inject:produce) kpsi: 10:9Max Temp: 320º F Number of versions:

Nominal hole size: 6 1/4"Expands up to: 7.5"Max Delta P (inject:produce) kpsi: 4.5:2.5Max Temp: 275º F


CALL US – WELLTEC® CAN

QUICKLY MANUFACTURE AND QUALIFY NEW, CUSTOM

PRODUCTS ACCORDING TO YOUR WELL CHALLENGES


10 11

WFV™ FOR MAXIMUM RESERVOIR DRAINAGE OR PRESSURE SUPPORT

PRODUCT OVERVIEWWELLTEC® FLOW VALVE

The Welltec® Flow Valve is a full-bore valve (fixed or variable choke)that can be used for both production and injection purposes withinthe lower completion. The rugged design enables rotation of the lower completion during liner deployment.

With specially designed inlets and a novel sealing system, the Welltec® Flow Valve is qualified to open and close multiple times un-der differential pressure while maintaining flow, from both injection and production scenarios.

The full-bore design allows for hydraullic optimization of the well and together with a Welltec® Annular Barrier providing high pressure zonal isolation, the Welltec® Flow Valve forms an integral partof the Flex-Well® completion.

APPLICATIONS

· Zonal stimulation · Production with variable rate control · Water injection with variable rate control · Water choking and shut-off

FEATURES

· Superior seal system · Full bore causing least pressure drop from flow · Variable choke capability · Wireline operated in main bore and lateral · Position detection · High torque connections

BENEFITS

· Low profile with minimum impact on ECD · No limitation on the qty / well, main bore or laterals · Short in length with optimal design for life of well reliability · Combinable with screens for sand control · Enables rotation during completion · Simple, reliable manipulation

12 13

WELL INTEGRITY APPLICATIONS

Solid liner capability ena-bles full circulations

complete well control and increased

safety

WAB® set in cap rock for later well abandonment. A cement

collar run above can combine with the WAB®

to improve cement placement

WAB® set in B-annulus to elimi-nate sustained casing

pressure (SCP)

REDUCE RISK

WDMTM

provides annular P & T to confirm set-

ting and provide reservoir data

12

LOWER COMPLETION APPLICATIONS

WAB’sused for reservoir

compartmentaliza-tion and reduction

of geological uncertainty

WFVTM

for injection or production

No control lines means smaller hole sizes, smaller rigs,

less time to drill and complete

Cementless completion reduces

skin, maximizes production and

lowers cost

Drilling optimization

supported by a ream-er shoe, which allows

fluid circulation, rotating while drilling and mud

clean-out

Full bore completion increases

production and allows for future re-entry and

optimization

Compartments can be created in

any size at any depth facilitating well testing

13

MAXIMIZE PRODUCTION

14 15

WDMTM FOR RESERVOIR AND PRODUCTION MONITORING

Welltec® Data Monitoring (WDM™) sensor packages open up the capability to measure annular pressures and temperatures over time. Installed with the Welltec® Annular Barriers, these compact sensor packages provide the industry a novel means of obtaining valuable, time-lapse data about the completion and well construction without the limitations and costs imposed by control lines.

The WDM’s are in constant data acquisition mode, recording high resolution pressure and temperature, beginning with installation on the rig floor. When desired, they are downloaded via wireless receiv-ers in pass-by, e-line tools which can be incorporated into any stan-dard e-line operation; ie. cement bond evaluation, productionlogging, caliper run, plug/packer setting, ICD adjustment.

APPLICATIONS

· Stimulation data recording · Long term reservoir monitoring · Monitor surface / sustained annular pressure build-up · Verification of well barrier integrity

FEATURES

· No control lines · No limit to the number of sensors placed in the completion · External pressure and temperature readings (annulus) · Robust, simple design · Years of battery life · Large data storage · Fast download

BENEFITS

· Reduced cost and CAPEX · Simpler well designs · Greater reservoir understanding · Insight to completion fundamentals (stimulation, cement) · WDM data can be used for documenting annular isolation

PRODUCT OVERVIEWWELLTEC® DATA MONITORING

16 17

ACHIEVEMENTSThis installation marks the first time that something other than ce-ment has been installed in a well completion as a primary barrier. Based on the testing and qualification accomplished, the operator was able to install the WAB® as a primary barrier without the need for a dispensation from the authorities. Since this first operation, a further two wells have been completed and a fourth well is in plan-ning for the client.

WORLD’S FIRST ANNULAR BARRIER INSTALLED IN A SUBSEA, DEEPWATER WELL WITHOUT THE USE OF CEMENT

BACKGROUND As wells get deeper and well trajectories get more complex, the challenge to establish effective ce-ment for a barrier between reservoirs increases. An operator in Latin America was challenged by high cement losses in a number of zones in the formation, which made it difficult to de-liver barrier isolation between zones to prevent co-mingling production/injection. The operator decided to install Welltec® Annular Barriers (WAB’s) for Zonal Isolation (ZI) between three distinct reservoir sections on this carbonate reservoir well. The WAB’s required quali-fication to meet the challenging environment conditions and prove

life-of-well reliability to the local governmental agency. As well as meeting the ISO standards, individual components were subjected to repeated cyclic testing, replicating 30 years life of well simulation with a methodology defined as ‘Accelerated Life Testing’.

OPERATIONFour WAB’s were installed within the deepwater, pre salt, subsea well, run on the 9 5/8” production liner within a 12 1/4” hole to ap-prox. 20,000 ft TVD. The liner was deployed safely and circulated to total depth (TD). A dart was dropped to shut off the shoe, then the liner hanger was set and the WAB’s expanded quickly under surface control. The shallowest WAB® was set within the 13 3/8” casing.

Since the 9 5/8” production liner was not cemented, the WAB’s will provide the barrier elements between the reservoir units

over the life of the well. The three lowermost WAB’s were installed to provide barriers between three, distinctive reservoir units. The 9 5/8” was subsequently perforated with large diameter TCP guns and the zones stimulated with a shallow hydrocarbon zone tested to surface. WAB® expansion and sealing verification was delivered via battery

powered, zonal annular pressure and temperature sensors positioned between the 9 5/8” and the 12 1/4” annulus. The

Delta P across the WAB’s was recorded during both the acid stimu-lation (designed up to 5,000 psi) and subsequent water injection, in all cases showing no leaks.

FOR COMPLETION SOLUTIONS

FIRST WELLTEC® ANNULAR BARRIER RUN AS PRIMARY WELL BARRIER, PREVENTING SCP

BACKGROUNDThe annulus between the 9-5/8” and the 13-3/8” casing strings within a Norwegian field development had historically exhibited pres-sure buildup at surface on many wells. It had been determined that the source of the pressure was a gas charged formation just below the 13-3/8” shoe. Obviously, for the operator, eliminating sustained casing pressure (SCP) was a priority along with easy barrier verifica-tion over the lifetime of the well. To eliminate the SCP several meth-ods had been trialed over the years including single stage cementing, second stage cementing, external casing packers and liner tie back solutions. All of these solutions had failed to resolve the problem. Meanwhile, the Welltec® Annular Barrier, WAB®, had been success-fully deployed by the operator for zonal isolation in a number of wells across various reservoir sections. Subsequently, it was proposed by Welltec® as a possible, alternative solution to eliminate the SCP. In order to be utilized as a primary well barrier, replacing cement, the solution had to pass a number of significant criteria. It was carefully reviewed by the operator’s Well Integrity team to ensure that the system complied with their own company standards and the Norsok D10 guidelines.Meanwhile, further qualification of the intended so-lution, a 12-1/4” WAB®, was completed to extend its certifications from the ISO 14310 V3 standard to V0 validation grade.

OPERATIONPrior to the installation, modeling on the impact to ECD during ce-menting was evaluated. The WAB® is designed to be relatively trans-parent to cementing operations; it has a small OD, runs slick and is rugged enough to be rotated with low torque and drag effects. The modeling confirmed there was minimal risk to the primary cement job associated with the inclusion of the WAB®. The 12-1/4” WAB® was run in the well as part of the 9-5/8” casing string to a depth of 5,210 ft (1,588 m). This placed the WAB® close to the shoe of the 13-3/8” casing. The primary cement operation focused on establish-ing good cement around the shoe of the 9-5/8” and cement quality was ensured by keeping the cement top deep within the 12-1/4” hole.

Once the cementing operation was completed, the cement dart was bumped and additional pressure applied from surface to expand the WAB®. The well was pressurized in steps up to 5,072 psi (345 bar), which hydraulically expanded the WAB® without compromising the casing integrity. Verification of the WAB® as the primary barrier was achieved via application of surface pressure down the 13-3/8” x 9-5/8” annulus; pressure equivalent to the fracture gradient of the formation below the 13-3/8” shoe plus a 1,030 psi (70 bar) surplus. The pressure was held for 10 minutes to confirm isolation and verify the barrier.

CASE STORIES

18 19

FIRST INSTALLATION OF WELLTEC® FLOW VALVES FOR NEW WELL STIMULATION AND PRODUCTION

An operator in West Africa expanded the objectives of their first well in a new field from producing first gas to producing first gas and first oil. This change in goals shortly before spudding challenged the drilling team to find and deliver the best solution for an optimum completion. Welltec® proposed incorporating the 4-1/2” Welltec® Flow Valves (WFV™) with multiple flow area (choking) configura-tions. These would enable the client to retain maximum control of the dual zone completion without having to make major alterations to their previous, single zone well design. In addition to multiple choke settings, the WFV™ is ISO14998 V3 qualified to 8,000 PSI burst at 135°C and can be manufactured with varying specifications to meet operators’ needs. It is operated via a reliable, e-line conveyed tool-string consisting of the Well Tractor®, Well Stroker® and Well Key®. Within six weeks of initial discussion, five Welltec® Flow Valves with three different, customer specified flow areas (chokes) were delivered for the operation. Additionally, the Well Stroker® and Well Key® re-ceived design modifications (for high expansion) implemented within this same time period to function within the 4-1/2” WFV™ after passing through a 2.75” restriction in the previously planned upper completion.

OPERATIONFour, 4-1/2” Welltec® Flow Valves were run as part of the lower completion inside the previously run, cemented, and perforated 7” liner. One WFV™ was positioned in the planned oil zone at 9,285 ft (2,830m) MD along with a third party fracking sleeve and three

additional WFVs were positioned in the planned gas zone between 8,907 – 9,005 ft MD (2,715m MD and 2,745m MD) with 50 ft (15m) spacing. The two zones were separated by hydraulically set packers. The lower completion was run on a 4-1/2” frac string with the planned purpose of facilitat-ing the fracing operation before being pulled and replaced by the upper completion. The lower completion and frac string were run to TD without incident. But prior to the frac operation the 3rd party frac sleeve failed to open despite multiple attempts using coil-tubing. Welltec® used computation fluid dynamics (CFD) modeling to evalu-ate the option of fracing through the WFV™ and determined the valves function would not be affected by this operation. Deciding to proceed with this option, the Well Tractor®, Well Stroker® and Well Key® were used to quickly open the WFV™ within the oil zone. The operator then continued with the planned frac without having to pull the completion or resort to other, alternative deconstructive solutions. A proppant frac was initiated through the WFV™ using x-linked flu-ids and proppants. A total of 723 bbls was pumped up to maximum surface pressure of 7,100 psi (490 bar). After completion and clean-up of the oil zone, Welltec® opened all three WFV’s in the shallower gas zone on a single descent. This allowed the operator to evaluate the full flowing gas production prior to determining their desired choke settings. The three, different flow configurations on each of the WFV’s across the gas zone gave the operator multiple options to choke the flow as desired for optimum production.

ACHIEVEMENTSThe operation was successful with the WAB’s preventing fluid com-munication within the different reservoirs units.∙∙ It is the world’s first deployment of a cementless liner installed across multiple reservoir units meeting well barrier policy.∙∙ Tangible, high value cost savings were achieved with the removal of the cementing and clean out runs.∙∙ Significant, intangible benefits were delivered via achieving effective barriers between the reservoir units, ultimately delivering increased production from nearby wells and increasing overall recoverables.

9 1/2” WELLTEC® ANNULAR BARRIERS ENABLE HIGH PRESSURE, CEMENTLESS, ZONAL ACID STIMULATION

BACKGROUND

In the North Sea an operator needed to deploy a liner across an 8,000 ft. horizontal section within a selected reservoir comprised of eight zones. The challenges were that the zones had to be completely com-partmentalized from each other and able to withhold up to 6,000 psi Delta P during an extensive acid stimulation job, as well as isolate a nearby, water-bearing zone. Reliable barriers to achieve these objec-tives were required.

To improve economics and maximize reservoir exposure to the acid, cement was avoided as part of this solution. The baseline operation was built up from an extensive drilling and production database; and using this novel completion, the well was projected to deliver 2,900 barrels/day.

OPERATION

After an extensive engineering study, six-teen Welltec® Annular Barriers (WAB’s) were installed on the operators line assembly and de-ployed in the well, sealing off the selected eight zones.

Once the entire liner / WAB® assembly reached the desired TD, pres-sure inside the liner was increased to a pre-engineered level and subsequently all the WAB’s were expanded as designed in less than 30 min. With the zones completely isolated, an acid stimulation job took place reaching the desired maximum Delta P of up to 6,000 psi between each zone. The pressure was successfully contained within each compartment while the stimulation job went from one zone to the next as designed. The zonal compartmentalization and WAB® in-tegrity were confirmed by temperature and pressure sensors located within each of the zones using independent surface readout.

ACHIEVEMENTS

The application of the WAB’s removed the need for cement in this project and enabled the operator to achieve the desired, extended reach drilling target while overcoming the limiting ECD (equivalent circulating density) concerns. Furthermore, the operator benefited from a lower completion with a high degree of compartmental con-trol while maintaining a low skin factor.

20 21

CONTINGENCYIn the event there was communication to the depleted zone during the drilling or the subsequent cement operation, contingency plans had been established to capitalize further on the WAB’s characteristics. The primary cement opera-tion would still have been attempted and the WAB® expanded as described previously, but now without cement around it. Next a second stage cement operation would have been conducted through the port collar, the WAB® iso-lating the cement from the depleted zone below while diverting the cement upwards and acting as a base for the cement.

ACHIEVEMENTS

Capitalizing on the unique capabilities of the Welltec® Annular Barrier, an operator in the North Sea overcame a longstanding, well integrity challenge which had resulted in excessive contingency cost and risk over the years. Incorporating the 9 5/8” WAB® into the well construction allowed them to achieve a primary well barrier between the 9 5/8” and the 12 1/4” open hole efficiently and effectively despite a heavily depleted reservoir section. Proper contingency planning was accomplished ahead of time, and although not re-quired, aided in risk mitigation and cost control. The capability of the WAB® to expand quickly from surface, despite the presence or lack of cement enabled the use of a port collar to increase the success of a secondary cement job for primary barrier construction.

AND THIS IS JUST THE BEGINNING ...

AS WE CONTINUE TO TRANSFORM THE INDUSTRY, SO THAT IT BECOMES SAFER AND MORE SUSTAINABLE, WHILE PROVIDING HIGHER

RECOVERY

MORE CASE STORIES CAN BE FOUND AT WWW.WELLTEC.COM/COMPLETION SOLUTIONS

ACHIEVEMENTSIncorporating this new product, the operator was quickly able to overcome the challenges presented both by the new objective of producing oil as well as that from the malfunctioning, 3rd party frac sleeve. This was the world’s first installation of Welltec’s Flow Valves and demonstrated the flexibility and ease by which it can be ordered, delivered, deployed and operated. Within six weeks the WFV’s were manufactured and delivered along with the modified Well Stroker® and Well Key®. Shortly thereafter they were run in this new well com-pletion and performed flawlessly, despite being subject to unplanned contingency operations. ∙∙ First WFV™ installation∙∙ First prop frac through a WFV™∙∙ Three WFV’s opened in one run∙∙ First job using newly modified, high expansion Well Stroker® & Well Key® toolstring

WELLTEC® ANNULAR BARRIER OVERCOMES DEPLETED ZONE TO DELIVER A PRIMARY WELL BARRIER

BACKGROUNDA Norwegian Operator was experiencing major challenges in posi-tioning the 9 5/8” production casing shoe within the top of a heav-ily depleted reservoir. The low pore pressure in the depleted zone had repeatedly caused severe losses during the cementing opera-tion which resulted in difficulties to construct a primary barrier using cement within the 9 5/8” to 12 ¼” annulus. Many solutions had been trialed with varying degrees of success; the majority resulting

in reliance upon contingency plans, bringing increased cost and risk. Continuing to look for a solution, the operator screened and subse-quently elected to trial the Welltec® Annular Barrier, (WAB®), a rug-ged, fullbore annular barrier, in combination with cement to provide the primary well barrier pressure seal. The Welltec® Annular Barrier (product code1214WAB5:5) fit the application in that it can provide a 5,000 psi, bi-directional ΔP rating across the barrier within the an-nulus. It runs slick with a 11.37” running OD, opens to a maximum 13.8” setting diameter and is qualified to 5,000 psi V3 leak criteria under ISO14310 standards.

OPERATIONThe WAB® was assembled on the OD of the 9 5/8” casing string along with a 3rd party cement port collar positioned shallow of it. The casing was run to a depth of 2,655m without incident, the rugged WAB® able to withstand liner rotation as needed. The setting depth was 14m shallow of the depleted zone formation top. Because of its slick, nominal upset OD, the WAB® is generally transparent to the pri-mary cementing operation and poses limited to no risk. The primary cementing job was completed with liner rotation, the cement top plug bumped and pressure applied gradually from surface to expand the WAB®. At 5,000 psi surface pressure, the WAB was fully expand-ed and the port within the 9 5/8” casing was isolated. This returns the full burst and collapse pressure rating of the 9 5/8” casing. On completion of the job, the operator confirmed a successful primary well barrier had been established comprised of both the cement and the WAB®.

FIRST NORSOK

COMPLIANT,

CEMENTLESS,

PRIMARY WELL

BARRIER

22 23

ON COMPLETION SOLUTIONS SPE PAPERSON COMPLETION SOLUTIONS

22

ACHIEVEMENTS FIRST NON-CEMENTED

B ANNULUS WELL BARRIER COMPLIANT TO WELL

INTEGRITY STANDARDS

SPE-173835: (2015 – SPE Bergen, Welltec) A New Approach that Enables Simpler Well Completion and Higher Recovery By Johnny Bårdsen, Terke Skeie, Neil Hannah (Welltec) presented at the SPE Bergen One Day Seminar held in Bergen, 22 April 2015.

SPE-177633: (2015 ADIPEC, Welltec and Statoil) A Novel Approach to Combat the B-Annulus Pressure Build-up Challenge by Johnny Bårdsen, Vibjørn Dagestad (Welltec), Britt Sliper, Line Hoff Nilsen, Daniel Eshraghi, Siddhartha Lunkad (Statoil) presented at the Abu Dhabi International Petroleum Exhibition and Conference held in Abu Dhabi, UAE, 9–12 November 2015.

SPE-169190: (2014 – SPE Bergen, Welltec and Statoil) Improved Zonal Isolation in Open Hole Applications by Johnny Bårdsen, Paul Hazel, Ricardo R. Vasques, Øyvind Hjorteland (Welltec) and Øystein Eikeskog (Statoil). Presented at the SPE Bergen One Day Seminar held in Bergen, 22 April 2015.

SPE-163511: (2013 – IADC, Welltec and Statoil) Qualification and Field Trial of a Metal Expandable Well Annular Barrierby Jan Roar Drechsler and Øystein Eikeskog (Statoil) and Paul Hazel, Ricardo Vasques, Boris Filev, Johnny Bårdsen, and Øyvind Hjorteland (Welltec). Presented at the SPE/IADC Drilling Conference and Exhibiton held in Amsterdam, The Netherlands, 5-7 March 2013.

SPE-166391: (2013 – ATCE, Welltec and Total) Open Hole Packers Provide Zonal Isolation for High Pressure Acid Stimulation within a Chalk Reservoir by P. Hazel (Welltec), H. Singh (Total) and J. Bårdsen, R. Vasques, R. Pearcy, N. Hannah, (Welltec). Presented at the SPE Annual Technology Conference and Exhibition in New Orleans, LA, USA, 30 September – 2 October 2013.

SPE-147082: (2011 – ATCE, Welltec) A novel well annular bar-rier solution alternative to swellable casing packers written by Hans Plessing & Michael Macdonald Arnskov (Welltec). Presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA, 2011.

SPE-173835: (2015 – SPE Bergen, Welltec) A New Approach that Enables Simpler Well Completion and Higher Recovery By Johnny Bårdsen, Terke Skeie, Neil Hannah (Welltec) presented at the SPE Bergen One Day Seminar held in Bergen, 22 April 2015.

SPE-177633: (2015 ADIPEC, Welltec and Statoil) A Novel Approach to Combat the B-Annulus Pressure Build-up Challenge by Johnny Bårdsen, Vibjørn Dagestad (Welltec), Britt Sliper, Line Hoff Nilsen, Daniel Eshraghi, Siddhartha Lunkad (Statoil) presented at the Abu Dhabi International Petroleum Exhibition and Conference held in Abu Dhabi, UAE, 9–12 November 2015.

SPE-169190: (2014 – SPE Bergen, Welltec and Statoil) Improved Zonal Isolation in Open Hole Applications by Johnny Bårdsen, Paul Hazel, Ricardo R. Vasques, Øyvind Hjorteland (Welltec) and Øystein Eikeskog (Statoil). Presented at the SPE Bergen One Day Seminar held in Bergen, 22 April 2015.

SPE-163511: (2013 – IADC, Welltec and Statoil) Qualification and Field Trial of a Metal Expandable Well Annular Barrierby Jan Roar Drechsler and Øystein Eikeskog (Statoil) and Paul Hazel, Ricardo Vasques, Boris Filev, Johnny Bårdsen, and Øyvind Hjorteland (Welltec). Presented at the SPE/IADC Drilling Conference and Exhibiton held in Amsterdam, The Netherlands, 5-7 March 2013.

SPE-166391: (2013 – ATCE, Welltec and Total) Open Hole Packers Provide Zonal Isolation for High Pressure Acid Stimulation within a Chalk Reservoir by P. Hazel (Welltec), H. Singh (Total) and J. Bårdsen, R. Vasques, R. Pearcy, N. Hannah, (Welltec). Presented at the SPE Annual Technology Conference and Exhibition in New Orleans, LA, USA, 30 September – 2 October 2013.

SPE-147082: (2011 – ATCE, Welltec) A novel well annular bar-rier solution alternative to swellable casing packers written by Hans Plessing & Michael Macdonald Arnskov (Welltec). Presented at the SPE Annual Technical Conference and Exhibition, Denver, Colorado, USA, 2011.

Copyright © 2017 Welltec A/SAll rights reserved. No part of this publication may be reproduced in any form without the written permission of Welltec A/S.Welltec, Well Tractor, Well Stroker, Well Key, Well Cleaner, Well Miller, Welltec Release Device, Well Cutter, Welltec Puncher, Welltec Flow Valve, Welltec Data Monitoring and Welltec Annular Barrier are trademarks of Welltec A/S and may be registered in Denmark and/or in other countries. All products are protected by patents or patent pending.

Copyright © 2017 Welltec A/SAll rights reserved. No part of this publication may be reproduced in any form without the written permission of Welltec A/S.Welltec, Well Tractor, Well Stroker, Well Key, Well Cleaner, Well Miller, Welltec Release Device, Well Cutter, Welltec Puncher, Welltec Flow Valve, Welltec Data Monitoring and Welltec Annular Barrier are trademarks of Welltec A/S and may be registered in Denmark and/or in other countries. All products are protected by patents or patent pending.

completion solutions - welltec · welltec’s completion solutions ... at the heart of the...

Documents