EP2540955A1 - Gasliftabweichungssystem - Google Patents

Gasliftabweichungssystem Download PDF

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Publication number
EP2540955A1
EP2540955A1 EP11172157A EP11172157A EP2540955A1 EP 2540955 A1 EP2540955 A1 EP 2540955A1 EP 11172157 A EP11172157 A EP 11172157A EP 11172157 A EP11172157 A EP 11172157A EP 2540955 A1 EP2540955 A1 EP 2540955A1
Authority
EP
European Patent Office
Prior art keywords
valve
tool
changing system
retrieving
optical cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11172157A
Other languages
English (en)
French (fr)
Inventor
Jørgen HALLUNDBAEK
Helge Halvorsen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welltec AS
Original Assignee
Welltec AS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Welltec AS filed Critical Welltec AS
Priority to EP11172157A priority Critical patent/EP2540955A1/de
Priority to BR112013032672A priority patent/BR112013032672A2/pt
Priority to PCT/EP2012/062698 priority patent/WO2013001062A1/en
Priority to AU2012277781A priority patent/AU2012277781A1/en
Priority to MX2013014575A priority patent/MX2013014575A/es
Priority to CN201280032180.0A priority patent/CN103649453A/zh
Priority to EP12730560.5A priority patent/EP2780535A1/de
Priority to CA2840463A priority patent/CA2840463A1/en
Publication of EP2540955A1 publication Critical patent/EP2540955A1/de
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/03—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting the tools into, or removing the tools from, laterally offset landing nipples or pockets
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
    • E21B43/121—Lifting well fluids
    • E21B43/122—Gas lift
    • E21B43/123—Gas lift valves
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/103—Locating fluid leaks, intrusions or movements using thermal measurements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/10—Locating fluid leaks, intrusions or movements
    • E21B47/107—Locating fluid leaks, intrusions or movements using acoustic means
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B47/00—Survey of boreholes or wells
    • E21B47/12—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling
    • E21B47/13—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency
    • E21B47/135—Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. radio frequency using light waves, e.g. infrared or ultraviolet waves

Definitions

  • the present invention relates to a valve changing system for retrieving and installing a valve in a well. Furthermore, the invention relates to a valve changing method.
  • Gas lift kickover tools are used to take out a gas lift valve in a side pocket in a well and, in a next run, to put in a new gas lift valve.
  • Gas lift valves are arranged in a side pocket in the production casing for letting gas into the casing from the annulus surrounding the casing which is filled with gas.
  • the gas lift valves are, together with the casing, part of the primary barrier in a well and it is therefore extremely important that a gas lift valve is not leaking as pressure is then built up in the annulus. If pressure builds up in the annulus due to a leaking valve or if the production decreases, the valve is changed.
  • a new valve is installed in a next run and the well is tested by taking off the pressure in the annulus to verify that the valve is mounted correctly and functions as intended. If the pressure in the annulus does not increase, the valve does not leak and the primary barrier is maintained. The process of taking off the pressure and pressurising the annulus again lasts around three days in which the well is not producing.
  • the changing of a gas lift valve is performed in two runs if the operation is successful on the first attempt and subsequently, the well is out of production for at least three days to be tested.
  • a valve changing system for retrieving and installing a valve in a well, comprising:
  • replacing of a valve can be performed in one run. Furthermore, by having a fibre optical cable sensor, testing of the well can be made in the same run by submerging the system into the well so that the fibre optical cable sensor is arranged outside the valves and all the valves can be tested without having to decrease the pressure in the annulus. A replacement operation can then be performed in half a day instead of in three days.
  • the valve changing system according to the present invention may further comprise a tool connection for connecting the retrieving tool with the installation tool.
  • the driving tool may be a stroking tool comprising a motor and a pump driven by the motor, the pump pumping fluid into a piston chamber in the stroking tool moving a piston connected with a piston shaft, said shaft being connected with the retrieving tool or installation tool for transferring the axial movement.
  • the driving tool may be a downhole tractor, said driving tool also being capable of driving the system forward in the well.
  • the driving tool may comprise wheels arranged on a wheel arm and may have an electrical motor driving a pump which drives the wheel to moving the system forward in the well.
  • the driving tool may comprise an electrical power device to power the tools.
  • the valve changing system as described above may further comprise a wireline for powering the tools.
  • the fibre optical cable sensor may be part of a wireline, an e-line or a slickline connected to the tool string in order to retrieve the tool string.
  • the fibre optical cable sensor may be a distribution temperature sensor and/or a distribution acoustic sensor.
  • the piston may divide the piston chamber of the stroking tool into a first chamber part and a second chamber part, and the pump may pump fluid into the first chamber part and suck fluid out of the second chamber part.
  • the stroking tool may comprise several pistons, each piston being arranged in a piston chamber.
  • the valve changing system according to the present invention may further comprise an anchoring section.
  • Said valve changing system may comprise sensors arranged to detect if the arm is in its retracted or extending position.
  • the present invention relates to a valve changing method comprising the steps of:
  • the present invention relates to a valve changing method for changing a valve in a well, comprising the steps of:
  • valve changing method as described above may further comprise the step of adjusting the installed valve to be more open or closed.
  • valve changing method as described above may further comprise the step of closing the well while conducting an acoustic detection by means of the fibre optical cable sensor.
  • Fig. 1 shows a valve changing system 1 for retrieving a valve 2 in a well 3 and installing another valve.
  • the valve changing system 1 comprises a retrieving tool 4 for taking out the valve and an installation tool 9 for installing another valve.
  • the installation tool 9 is connected with the retrieving tool forming a tool string 8.
  • the tool string 8 is connected with a driving tool 13 for providing an axial movement in order to install or retrieve the valve.
  • the valve changing system 1 further comprises a fibre optical cable sensor 14 for detecting temperature and/or acoustic variations.
  • the fibre optical cable sensor is arranged in one end of the tool string closest to the top of the well so that when the tools are moved forward in the well, the fibre optical cable sensor can test the valves in the well.
  • This end of the tool string comprises an electrical power device 20 powering a motor 15 which drives a pump 16.
  • the pump 16 is part of the driving tool 13 providing the axial movement of the retrieving tool and the installation tool.
  • the retrieving tool comprises a housing 5 and an arm 6 pivotably connected with the housing.
  • the arm has a connector 7 for connecting to the valve to be retrieved.
  • the installation tool 9 also comprises a housing 10 and an arm 11 pivotably connected with the housing, and the arm has a connector 12 for connection to the new valve.
  • the arms comprises two arm parts pivotably connected so that the first arm part is connected to the housing 10 and the second arm part is connected to the valve 2.
  • Both the retrieving tool and the installation tool are a kind of kickover tool.
  • the installation tool has a tool connection 39 arranged in an end opposite the driving tool transferring the axial movement of the driving tool to the retrieving tool so that only one driving tool is needed. If the retrieving tool is arranged closest to the driving tool, the retrieving tool has a tool connection arranged in an end opposite the driving tool transferring the axial movement of the driving tool to the installation tool.
  • the tool connection 39 comprises a cylindrical tube having an internal thread corresponding to external threads of the retrieving and installation tools, or the tool connection 39 comprises latches hooking onto a corresponding groove or corresponding grooves in the retrieving and installation tools.
  • the driving tool is a downhole tractor which is also capable of driving the system forward in the well.
  • the driving tool comprises wheels arranged on a wheel arm and has an electrical motor 15 driving a pump 16 which drives the wheel to moving the system forward in the well.
  • the wheels thus provide the axial movement needed for retrieving or installing a valve.
  • the arm of the retrieving and installation tool is extending when a latch of the tool hooks onto a trail 25 or groove in the vicinity of the valve and is thus pulled back again by means of the trail 25.
  • the driving tool is a stroking tool which comprises a motor 15 and a pump 16 driven by the motor.
  • the pump pumps fluid into a piston chamber 17 in the stroking tool moving a piston 18 connected with a piston shaft 19, the shaft being connected with the retrieving tool or installation tool for transferring the axial movement.
  • the valve changing system 1 comprises an anchoring section 24 which is activated by the pump before providing the stroking movement.
  • the piston 18 divides the piston chamber of the stroking tool into a first chamber part 22 and a second chamber part 23, and the pump pumps fluid into the first chamber part and sucks fluid out of the second chamber part.
  • the stroking tool comprises several pistons, each piston being arranged in a piston chamber 17 providing greater axial force than one piston as the pump pumps fluid into every first chamber parts to apply pressure on the piston from one side and to pull from the other side by pumping fluid out of the second chamber part.
  • the pump pumps fluid into the second chamber parts and pumps fluid out of the first chamber parts.
  • the fibre optical cable sensor is a distribution temperature sensor and/or a distribution acoustic sensor.
  • the valve changing system is moved back and forth in the well so that the fibre optical cable sensor is located opposite each of the valves in order to detect which valve is leaking or stuck.
  • the fibre optical cable sensor is part of a wireline, e-line or slickline connected to the tool string 8 in order to retrieve the tool string.
  • the wires 26 are arranged on the outside and the optical fibre 14 on the inside.
  • the wireline may also comprise electrical cables 27 as illustrated in Fig. 4 .
  • the valve changing system 1 has the retrieving tool 4, the installation tool 9, the fibre optical cable sensor 14 and two driving tools 13 in the form of a stroking tool and a downhole tractor.
  • the stroking tool provides the axial force to replace the valve and the downhole tractor drives the valve changing system 1 back and forth in the well so as to move the valve changing system 1 into a specific position to perform a certain operation.
  • the valve changing system 1 is thus used to determine if a valve needs to be replaced or which valve needs to be replaced, to replace the valve and verify that the valve has been correctly installed and functions as intended.
  • the valve changing system is entered into the well and the valve changing system is moved to a position in which the retrieving tool is opposite at least one valve in the well. Subsequently, the valve is retrieved by means of the retrieving tool, and the valve changing system is moved so that the installation tool is in the position outside the opening in which the valve is to be installed and the installation tool installs another valve by means of the installation tool, and then the valve changing system is moved backwards so that the fibre optical cable sensor passes the installed valve and detects the temperature and/or acoustic variations opposite the at least one valve by means of the fibre optical cable sensor. If the valve is functioning perfectly, the valve changing system is pulled out of the well.
  • the fibre optical cable sensor is able to detect the flow around the valve by means of acoustic sensing.
  • the fibre optical cable sensor is able to detect the gas flowing in by means of acoustic sensing.
  • Temperature sensing is another way of detecting flow as the temperature will change locally. When having several valves in the well, the defect valve needs to be located.
  • the valve changing system After lowering the system into the well, the valve changing system is moved so that the fibre optical cable sensor passes a plurality of valves in order to detect which valve is defect, and then the valve changing system is moved to a position so that the retrieving tool is opposite the defect valve, the defect valve is retrieved by means of the retrieving tool, and then the valve changing system is moved again so that the installation tool is in the position, and another valve is installed by means of the installation tool. Subsequently, the valve changing system is moved back and forth so that the fibre optical cable sensor passes the installed valve and detects any temperature and/or acoustic variations opposite the at least one valve by means of the fibre optical cable sensor.
  • the retrieving tool 4 is arranged opposite the valve 2 to be replaced.
  • the arm 6 of the retrieving tool 4 is in its extended position, ready to be subjected to an axial movement from the driving tool 13 to engage the valve 2 by the connector of the arm 6.
  • the retrieving tool 4 has been subjected to the axial movement and the arm 6 is connected to the valve 2, ready for retrieval.
  • the retrieving tool 4 is retrieving the valve 2 and the retrieving tool 4 is moved further down the well so that the installation tool 9 is arranged in the position opposite the opening 40 in which the valve is to be installed.
  • Fig. 3A the retrieving tool 4 is arranged opposite the valve 2 to be replaced.
  • the arm 6 of the retrieving tool 4 is in its extended position, ready to be subjected to an axial movement from the driving tool 13 to engage the valve 2 by the connector of the arm 6.
  • the retrieving tool 4 has been subjected to the axial movement and the arm 6 is connected to the valve 2, ready for retrieval.
  • the retrieving tool 4 is retrieving the
  • the arm 11 of the installation tool 9 is extended and the valve is arranged outside the opening 40 into which the valve is to be inserted.
  • the valve is in its inserted position and in Fig. 3H , the installation tool 9 is pulled back in order to retract the arm 11.
  • the tool string 8 is moved forward in the well so that the fibre optic cable sensor is arranged outside the valves to verify that the valve has been installed correctly and is working as intended and that it was in fact that valve that needed to be changed in order to solve the problem.
  • the system may further comprise an adjustment device for adjusting the installed valve to be more open or closed.
  • the well may be closed while conducting an acoustic detection by means of the fibre optical cable sensor.
  • fluid or well fluid any kind of fluid that may be present in oil or gas wells downhole, such as natural gas, oil, oil mud, crude oil, water, etc.
  • gas is meant any kind of gas composition present in a well, completion, or open hole
  • oil is meant any kind of oil composition, such as crude oil, an oil-containing fluid, etc.
  • Gas, oil, and water fluids may thus all comprise other elements or substances than gas, oil, and/or water, respectively.
  • a casing any kind of pipe, tubing, tubular, liner, string etc. used downhole in relation to oil or natural gas production.
  • a downhole tractor can be used to push the tool all the way into position in the well.
  • a downhole tractor is any kind of driving tool capable of pushing or pulling tools in a well downhole, such as a Well Tractor®.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geophysics (AREA)
  • Remote Sensing (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Examining Or Testing Airtightness (AREA)
  • Indication Of The Valve Opening Or Closing Status (AREA)
  • Details Of Valves (AREA)
  • Automatic Tool Replacement In Machine Tools (AREA)
EP11172157A 2011-06-30 2011-06-30 Gasliftabweichungssystem Withdrawn EP2540955A1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP11172157A EP2540955A1 (de) 2011-06-30 2011-06-30 Gasliftabweichungssystem
BR112013032672A BR112013032672A2 (pt) 2011-06-30 2012-06-29 sistema de guia de válvula de elevação com gás
PCT/EP2012/062698 WO2013001062A1 (en) 2011-06-30 2012-06-29 Gas lift kickover system
AU2012277781A AU2012277781A1 (en) 2011-06-30 2012-06-29 Gas lift kickover system
MX2013014575A MX2013014575A (es) 2011-06-30 2012-06-29 Sistema de remocion e instalacion de valvulas de elevacion de gas.
CN201280032180.0A CN103649453A (zh) 2011-06-30 2012-06-29 气举拆换系统
EP12730560.5A EP2780535A1 (de) 2011-06-30 2012-06-29 Austauschsystem für gastriebventil
CA2840463A CA2840463A1 (en) 2011-06-30 2012-06-29 Gas lift kickover system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11172157A EP2540955A1 (de) 2011-06-30 2011-06-30 Gasliftabweichungssystem

Publications (1)

Publication Number Publication Date
EP2540955A1 true EP2540955A1 (de) 2013-01-02

Family

ID=46397286

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11172157A Withdrawn EP2540955A1 (de) 2011-06-30 2011-06-30 Gasliftabweichungssystem
EP12730560.5A Withdrawn EP2780535A1 (de) 2011-06-30 2012-06-29 Austauschsystem für gastriebventil

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12730560.5A Withdrawn EP2780535A1 (de) 2011-06-30 2012-06-29 Austauschsystem für gastriebventil

Country Status (7)

Country Link
EP (2) EP2540955A1 (de)
CN (1) CN103649453A (de)
AU (1) AU2012277781A1 (de)
BR (1) BR112013032672A2 (de)
CA (1) CA2840463A1 (de)
MX (1) MX2013014575A (de)
WO (1) WO2013001062A1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886790A1 (de) * 2013-12-18 2015-06-24 Welltec A/S Bohrlocheinsatzsystem zum Ausstossen eines Tracers und/oder Flüssigkeitsprobeentnahme
CN115162985A (zh) * 2022-06-15 2022-10-11 四川大学 一种深部原位保真取芯率定平台安全监控系统
WO2023060223A3 (en) * 2021-10-08 2023-06-01 Impact Selector International, Llc Kickover tool

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117722176A (zh) * 2023-12-18 2024-03-19 愿景(天津)能源技术有限公司 一种永置分布式光纤下入油气井的工具和工艺

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003445A1 (en) * 2005-02-03 2007-01-11 Philip Head Sensor system for gas lift wells
GB2438202A (en) * 2006-05-18 2007-11-21 Schlumberger Holdings A kickover tool
GB2452416A (en) * 2007-08-31 2009-03-04 Schlumberger Holdings Hydraulically actuated kickover tool
WO2011071391A2 (en) * 2009-12-07 2011-06-16 Petroleum Technology Company As Kick-over tool

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703459A (en) * 1984-12-03 1987-10-27 Exxon Production Research Company Directional acoustic logger apparatus and method
US6955218B2 (en) * 2003-08-15 2005-10-18 Weatherford/Lamb, Inc. Placing fiber optic sensor line
EP2208039B1 (de) * 2007-10-10 2015-09-02 Tecwel AS Verfahren und system zum registrieren und messen von lecks und strömungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007003445A1 (en) * 2005-02-03 2007-01-11 Philip Head Sensor system for gas lift wells
GB2438202A (en) * 2006-05-18 2007-11-21 Schlumberger Holdings A kickover tool
GB2452416A (en) * 2007-08-31 2009-03-04 Schlumberger Holdings Hydraulically actuated kickover tool
WO2011071391A2 (en) * 2009-12-07 2011-06-16 Petroleum Technology Company As Kick-over tool

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886790A1 (de) * 2013-12-18 2015-06-24 Welltec A/S Bohrlocheinsatzsystem zum Ausstossen eines Tracers und/oder Flüssigkeitsprobeentnahme
WO2023060223A3 (en) * 2021-10-08 2023-06-01 Impact Selector International, Llc Kickover tool
US11927063B2 (en) 2021-10-08 2024-03-12 Impact Selector International, Llc Kickover tool
GB2625956A (en) * 2021-10-08 2024-07-03 Impact Selector Int Llc Kickover Tool
CN115162985A (zh) * 2022-06-15 2022-10-11 四川大学 一种深部原位保真取芯率定平台安全监控系统
CN115162985B (zh) * 2022-06-15 2023-06-13 四川大学 一种深部原位保真取芯率定平台安全监控系统

Also Published As

Publication number Publication date
AU2012277781A1 (en) 2013-05-02
CA2840463A1 (en) 2013-01-03
BR112013032672A2 (pt) 2017-01-24
WO2013001062A1 (en) 2013-01-03
MX2013014575A (es) 2014-03-21
EP2780535A1 (de) 2014-09-24
CN103649453A (zh) 2014-03-19

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