Replacing Gas_lift Valve

7/29/2019 Replacing Gas_lift Valve

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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

Feb. 1 - 5, 20102010 Gas-Lift Workshop 4


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Intervention Services

88Perfo Guns

Tractor runs by service in 2007

53

Set Plug

48

Gauge

5USIT/CBL

62Other


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


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


2 run

Operation was performed successfully

Well J-02, replace GLV in SPM @ 2758 MD


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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e as- or s op, ey gran o e or s op, e r c a

Research and Development Council (ALRDC), and the AmericanSociety of Mechanical Engineers (ASME), rights to:

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Place it on the www.alrdc.com web site, with access to the site to be asdirected by the Workshop Steering Committee.

Steering Committee.

Other uses of this presentation are prohibited without the expressedwritten ermission of the com an ies and/or author s who own it

and the Workshop Steering Committee.




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The Arti ficial Lift Research and Development Council and its off icers and trustees, and the Gas-Lift

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Replacing Gas_lift Valve

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