AWS Replacing Gas lift valve.ppt - ALRDC - Home - Artificial Lift …€¦ · · 2012-11-2033rd Gas-Lift Workshop Houston, Texas, USA February 1 - 5, 2010 Replacing Gas Lift Valves

33rd Gas-Lift WorkshopHouston, Texas, USAFebruary 1 - 5, 2010

Replacing Gas Lift Valves in highlyReplacing Gas Lift Valves in highly deviated wells with Wireline Tractor TechnologygyEspen Osaland, Aker Well Services

Jørn A Carlsen StatoilJørn A. Carlsen, Statoil

This presentation is the property of the author(s) and his/her/their company(ies).It may not be used for any purpose other than viewing by Workshop attendees without the expressed written permission of the author(s).

Agendag

• Intervention Method• Intervention Method

• Case History

• Test History

• Accessory Equipment

• Conclusion

• Animation

Feb. 1 - 5, 2010 2010 Gas-Lift Workshop 2

Animation

Statoil Wells in 1996• Vertical depth vs. horizontal reach of Statoil wells in 1996

0

500

1000

1500Vertical depth 1500

2000

Vertical depth(meters RKB)

2000 4000 6000 80000

2500

3000


Horizontal reach (meters)

Snubbing, coiled tubing and WL tractor operations on Statoil operated fields

140

100

120

r Yea

r

40

60

80

Ope

ratio

ns p

er

0

20

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

O

1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006

Snubbing CT Tractor LWI* Images and text courtesy of Statoil


Intervention Services

88Perfo Guns

Tractor runs by service in 2007

53

44

Perfo Guns

Set Plug

Pull Plug 44

48

43

Pull Plug

Gauge

PLT/RST 43

5

59

PLT/RST

USIT/CBL

Applications 59

62

0 10 20 30 40 50 60 70 80 90 100

Applications

Other


0 10 20 30 40 50 60 70 80 90 100Source: Statoil

Intervention Methods • The Wireline tractor system is designed for conveyance of Wireline

logging and intervention equipment, into horizontal or highly deviated wells

– PowerTrac® Advance™ 318

Electronics Motor and Pump Drive Sections Compensator


Intervention Methods • The Stroker tool is design to perform heavy duty push/pull operation

down hole– PowerTrac® Stroker 318

Electronics Motor,Pump/Compensator Anchor Stroke Unit


PowerTrac Control Panel

Current increase indicate GLV in No Go

Laptop view

Current increase indicate GLV in No-Go

Stroker push GLV into pocket

Surface control systemMouse click to operate and control Tractor / Stroker

Stroker position indicator

Start/stop tractor


Start/stop stroker

p

Experience Before KOT Modification• Norne field /Statoil

– Well G-01, replace worn out GLV in SPM @ 2635 MD• MD: 2635 meter, 2677 meter, Deg: 66°, 68°• 4 run • Problem latching GLV

– Problem could be related to spring force in KOT armp g

– Well G-04, replace GLV in SPM @ 2454 MD• MD: 2409 meter, 2454 meter, Deg: 64°, 65°• 2 run• Operation was performed successfully

– Well J-02, replace GLV in SPM @ 2758 MD• MD: 2715 meter, 2758 meter, Deg: 59°, 59°• 2 run• Operation was performed successfully

SPM @ 2635 MD


GLV Change Out Challengesg g• Challenges before Kick Over Tool (KOT) modification

• Experienced damage on GLV packing stack on standard Slick line operationsExperienced damage on GLV packing stack on standard Slick line operations

• Packing damage due to shear pin in KOT knee link

• Negative angle on KOT arm, not enough spring force

• After Kick Over Tool modification• Improved KOT arm force with link arm system

• Improved tool orientation

• Improved GLV installation line up, no bending to install


Test History y• November 2007, test of Modification Kit

– ScopeScope

• Improve spring force on arm (AWS Patent Technology)

• Remove shear pin in knee link

• Adjust arm angle


Test History y• April 2008, verification test in SPM

– ScopeScope

• Perform 15 setting/pulling sequences

• Perform pressure test between every 5th sequence

• Inspect pocket for damagep p g


Stroker / Kick Over Tool • Benefit using Stroker tool to replace Gas-Lift Valves

– Wireline Tractor drives GLV into SPM pocketWireline Tractor drives GLV into SPM pocket

– Stroker pushes GLV into locked position, no jarring applied

– Surface readout

• Position control

• Current increase when GLV lands in No-go

– Stroker shears off running tool


Accessory Equipment y q p• PowerTrac® Orientation sub (AWS Patent Technology)

– Saves tool space when running tractor through side pockets. (Wireline Tractor in TandemSaves tool space when running tractor through side pockets. (Wireline Tractor in Tandem not required)

– Orientation of Wireline Tractor in Side Pockets

– Finger collapse while POOH

– Easy connection and setup

– Failsafe Orientation finger


Accessory Equipment y q p• PowerTrac® String Shot sub (Patent Pending)

– Scale removal around valve lock in SPMScale removal around valve lock in SPM

• Orientation of detonating cord

String shot sub with primer cord 5 ½” SPM with inspection slot5 ½ SPM with inspection slot

St i h t b

Orientation sub

String shot sub


String Shot Sub TestgGLV pocket filled with concrete to simulate scale

Scale build up around GLV lock

GLV pocket after orientated String shot detonation


Conclusions

• GLV change out with Wireline Tractor and Stroker is field proven

• Stroker technology is a more controlled way of setting/pulling GLV without the need of mechanical jarring

• KOT modification kit lead to an accurate displacement of KOT arm

• KOT modification kit has been field proven with standard slick line operation

• Wireline Tractor / Stroker technology makes it possible to install SPM in highly d i t d lldeviated wells


Stroker / KOT Animation


Questions


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DisclaimerThe following disclaimer shall be included as the last page of a Technical Presentation or Continuing Education Course. A similar disclaimer is included on the front page of the Gas-Lift Workshop Web Site.The Artificial Lift Research and Development Council and its officers and trustees, and the Gas-Lift Workshop Steering Committee members, and their supporting organizations and companies (here-in-after referred to as the Sponsoring Organizations), and the author(s) of this Technical Presentation or Continuing Education Training Course and their company(ies), provide this presentation and/or training material at the Gas-Lift Workshop "as is" without any warranty of any kind, express or implied as to the accuracy of the information or the products or services referred to by any presenterimplied, as to the accuracy of the information or the products or services referred to by any presenter (in so far as such warranties may be excluded under any relevant law) and these members and their companies will not be liable for unlawful actions and any losses or damage that may result from use of any presentation as a consequence of any inaccuracies in, or any omission from, the information which therein may be contained.The views opinions and conclusions expressed in these presentations and/or training materials areThe views, opinions, and conclusions expressed in these presentations and/or training materials are those of the author and not necessarily those of the Sponsoring Organizations. The author is solely responsible for the content of the materials.The Sponsoring Organizations cannot and do not warrant the accuracy of these documents beyond the source documents, although we do make every attempt to work from authoritative sources. The Sponsoring Organizations provide these presentations and/or training materials as a service TheSponsoring Organizations provide these presentations and/or training materials as a service. The Sponsoring Organizations make no representations or warranties, express or implied, with respect to the presentations and/or training materials, or any part thereof, including any warrantees of title, non-infringement of copyright or patent rights of others, merchantability, or fitness or suitability for any purpose.

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AWS Replacing Gas lift valve.ppt - ALRDC - Home - Artificial Lift …€¦ · · 2012-11-2033rd Gas-Lift Workshop Houston, Texas, USA February 1 - 5, 2010 Replacing Gas Lift Valves