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33rd Gas-Lift Workshop
Houston, Texas, USA
February 1 - 5, 2010
deviated wells with Wireline
Tractor Technolo
Espen Osaland, Aker Well Services
. ,
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).
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Snubbing, coiled tubing and WL tractor operations on
Statoil operated fields
140
100
120
Year
40
60
80
Oper
ationspe
0
20
Snubbing CT Tractor LWI
* Images and text courtesy of Statoil
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Intervention Services
88Perfo Guns
Tractor runs by service in 2007
53
Set Plug
48
Gauge
5USIT/CBL
62Other
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Source: Statoil
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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
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PowerTrac Control PanelLaptop view
-
Stroker push GLV into pocket
Surface control system
Mouse click to operate and control Tractor / Stroker
Stroker position indicator
Start/stop tractor
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Start/stop stroker
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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 s rin force in KOT arm
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
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Test Histor November 2007, test of Modification Kit
Sco e
Improve spring force on arm (AWS Patent Technology)
Remove shear pin in knee link
Adjust arm angle
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Test Histor April 2008, verification test in SPM
Sco e
Perform 15 setting/pulling sequences
Perform pressure test between every 5th sequence
Inspect pocket for damage
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Stroker / Kick Over Tool Benefit using Stroker tool to replace Gas-Lift Valves
Wireline Tractor drives GLV into SPM ocket
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
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Accessor E ui ment PowerTrac Orientation sub (AWS Patent Technology)
Saves tool s ace when runnin tractor throu h side ockets. Wireline Tractor in Tandem
not required)
Orientation of Wireline Tractor in Side Pockets
Finger collapse while POOH
Easy connection and setup
Failsafe Orientation finger
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Accessor E ui ment PowerTrac String Shot sub (Patent Pending)
Scale removal around valve lock in SPM
Orientation of detonating cord
String shot sub
with primer cord
Orientation sub
r ng s o su
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Strin Shot Sub TestGLV pocket filled withconcrete to simulate scale
Scale build up aroundGLV lock
GLV pocket after orientatedString shot detonation
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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 highlyev a e we s
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Stroker / KOT Animation
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Questions
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Feb. 1 - 5, 20102010 Gas-Lift Workshop 21
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