WO2004038171A1 - Method for releasing cables from an attached well tool and apparatus for exercising the method - Google Patents
Method for releasing cables from an attached well tool and apparatus for exercising the method Download PDFInfo
- Publication number
- WO2004038171A1 WO2004038171A1 PCT/DK2002/000708 DK0200708W WO2004038171A1 WO 2004038171 A1 WO2004038171 A1 WO 2004038171A1 DK 0200708 W DK0200708 W DK 0200708W WO 2004038171 A1 WO2004038171 A1 WO 2004038171A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- cable
- cutter
- timer
- well tool
- tool
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000003990 capacitor Substances 0.000 claims description 4
- 239000002360 explosive Substances 0.000 description 8
- 238000010304 firing Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000010420 art technique Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000002144 chemical decomposition reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/02—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground by explosives or by thermal or chemical 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
- E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
- E21B29/04—Cutting of wire lines or the like
Definitions
- the present invention relates to a method for releasing cables from an attached well tool, where a cable cutter is arranged between the main part of a cable and a well tool, said cable cutter being controlled by a timer.
- the invention relates also to an apparatus for exercising the method.
- a well bore apparatus being adapted for being releasably coupled to suspension cables is disclosed in the US Patent 4,237,972 in the name of C.P. Lanmon.
- the inventor explains the idea of cutting the cable when the tool has fastened in the well.
- the basic idea is to avoid a long piece of a cable being left and destroyed between the tool and the fishing tool. Therefore, it is necessary to cut the cable close to the tool, and the cutting device is in this prior art controlled by a time delaying retaining means for preventing the actuation of the cutter, said retaining means having a chemically-corrodible element within a chamber, where a corrosive chemical can act upon the chemically-corrodible element.
- the chemically- corrodible element is a metal and the corrosive chemical is either an acid or a caustic.
- the corrosive element when released by the chemical degradation fires an explosive driving the cutting blade.
- a corrosive chemical is released in the apparatus for causing the failure of a restraining means only after the elapse of a predetermined time interval that is ordinarily more than sufficient for carrying out the intended operation of the apparatus.
- a normal procedure for using tools in a well bore is to send down the tool suspended in a cable.
- the cable is capable to carry a certain load before being destruc- ted by the tensile stress.
- the tool has a mass far below the limiting tensile stress of the cable. If the tool one way another is stuck in the well bore, it is important to release the tool and pull up the cable, as exerting further tensile stress will pass the yield point of the cable material thereby permanently reducing the cross section of the cable and its possible ability to carry large electrical currents.
- the inventor has suggested that at least three parameters are used for controlling the cutter, e.g. a pulling force exerted by the cable on the well tool, the pressure in the well location, and time, where the timer is working electronically.
- the term "cutting" is to be interpreted in a broad sense to include any intended disconnection between the cable and the well tool, except rupture.
- the temperature can also be used as a controlling parameter.
- the electronic timer is controlling a cutter of any appropriate type being driven by explosives or any other means.
- the cutting can only be performed, when the cable for some time is without any current and the conditions given by the surroundings are according to the set values of the pressure, the force, or temperature, respectively. Further, by being able to reset the timing device by changing the current through the cable, the cutting can be avoided at any time before the cutting is performed.
- the timer is reset from currents in the cable through the use of an interface pick-up. Thereby, a steady detection of the currents in the cable will be possible for both large currents, i.e. measured in A or kA, or smaller currents as measured in mA.
- the delay will be too long, if the tool must be retrieved in a short time.
- the electronic timer ⁇ in an advantageous embodiment — can be con- trolled by pulses smaller than the reset pulses, thereby making it possible to the operative crew to remotely control the preset timer delay and the triggering of the cutter.
- a capacitor can be arranged between the cable and ground so that small pulses or their flanks can be directed to the timer, without seriously influencing the circuits for the larger working currents.
- an electronic timer comprises a receiver for receiving reset signals generated by the currents in the cable, an auxiliary inlets for signals from sensors for physical parameters, and an outlet for the control of a cutter control.
- the physical parameters could be the pressure, temperature, or tensile stress.
- a signal is given to the timer, which - after the preset timer period - fires the cutter control and thereby disconnects the cable from the tool.
- the cutter control can comprise explosives or other cutting effective arrangements to secure the cutting of the cable, when needed. Such cutting effective arrangements could be springs working directly with knives, scissors or shears.
- an electronic timer device 1 is in connection with the cable 2 through a pick-up 3. Under influence from not directly shown sensors information about the pressure and the force exerted on the cable is directed to the timing device 1 ,
- the explosives control 4 will fire and activate the cutter 6, which thereby will cut the cable close to the attached well tool so as to leave as little cable as possible with the attached well tool. This measure should secure a safe fishing of the tool, as earlier such left-over of the cable could both be a waste of the cable and impede the fishing of the tool.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Geology (AREA)
- Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chemical & Material Sciences (AREA)
- Electric Cable Installation (AREA)
- Removal Of Insulation Or Armoring From Wires Or Cables (AREA)
- Processing Of Terminals (AREA)
- Scissors And Nippers (AREA)
- Ropes Or Cables (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
- Disintegrating Or Milling (AREA)
- Geophysics And Detection Of Objects (AREA)
- Earth Drilling (AREA)
- Catching Or Destruction (AREA)
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/532,215 US7588084B2 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
AT02785080T ATE322606T1 (en) | 2002-10-24 | 2002-10-24 | METHOD FOR RELEASE CABLE FROM A CONNECTED DRILLING TOOL AND DEVICE FOR PERFORMING THIS METHOD |
DK02785080T DK1570152T3 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from a pendant tool and apparatus for practicing the method |
AU2002350408A AU2002350408B2 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
DE60210516T DE60210516T2 (en) | 2002-10-24 | 2002-10-24 | CABLE RELEASE METHOD FROM A CONNECTED DRILLING TOOL AND DEVICE FOR CARRYING OUT THIS METHOD |
CNB02829789XA CN1329620C (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
PCT/DK2002/000708 WO2004038171A1 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
EP02785080A EP1570152B1 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
CA2502006A CA2502006C (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
BRPI0215916-3A BR0215916B8 (en) | 2002-10-24 | 2002-10-24 | Method and apparatus for releasing cables attached to a well tool. |
ES02785080T ES2261755T3 (en) | 2002-10-24 | 2002-10-24 | METHOD TO RELEASE CABLES FROM AN ANCIENT WELL TOOL AND APPLIANCE TO PERFORM THE METHOD. |
PT02785080T PT1570152E (en) | 2002-10-24 | 2002-10-24 | METHOD FOR RELEASING THE CABLES OF A TOOL FIXED IN A FEW AND APPARATUS FOR EXECUTING THE METHOD |
NO20051787A NO331886B1 (en) | 2002-10-24 | 2005-04-12 | Method for releasing cables from a connected source tool and device for exerting the method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DK2002/000708 WO2004038171A1 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004038171A1 true WO2004038171A1 (en) | 2004-05-06 |
Family
ID=32116164
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DK2002/000708 WO2004038171A1 (en) | 2002-10-24 | 2002-10-24 | Method for releasing cables from an attached well tool and apparatus for exercising the method |
Country Status (13)
Country | Link |
---|---|
US (1) | US7588084B2 (en) |
EP (1) | EP1570152B1 (en) |
CN (1) | CN1329620C (en) |
AT (1) | ATE322606T1 (en) |
AU (1) | AU2002350408B2 (en) |
BR (1) | BR0215916B8 (en) |
CA (1) | CA2502006C (en) |
DE (1) | DE60210516T2 (en) |
DK (1) | DK1570152T3 (en) |
ES (1) | ES2261755T3 (en) |
NO (1) | NO331886B1 (en) |
PT (1) | PT1570152E (en) |
WO (1) | WO2004038171A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO20073205A (en) * | 2007-06-22 | 2008-08-11 | Aker Well Service As | Device and method for separating a tool string arranged in an oil / gas well |
WO2012138231A1 (en) * | 2011-04-08 | 2012-10-11 | Deepwell As | Cutting tool for use in fluid-filled cavities and use of the tool |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8573294B2 (en) | 2009-07-31 | 2013-11-05 | Schlumberger Technology Corporation | Cable bypass and method for controlled entry of a tubing string and a cable adjacent thereto |
GB2479778A (en) | 2010-04-22 | 2011-10-26 | Sondex Wireline Ltd | Downhole releasable connector with electric contacts |
US8607872B1 (en) * | 2013-05-30 | 2013-12-17 | Adrian Bugariu | Fire prevention blow-out valve |
CN105971546B (en) * | 2016-07-12 | 2019-05-24 | 泸州聚源石油科技有限公司 | Preventer suitable for steel wire and cable |
US10760362B2 (en) | 2017-12-04 | 2020-09-01 | Schlumberger Technology Corporation | Systems and methods for a release device |
CN114363132A (en) | 2020-10-13 | 2022-04-15 | 三星电子株式会社 | Communication method |
US20230212921A1 (en) * | 2022-01-03 | 2023-07-06 | Timesaver Downhole Products, LLC | Time-Controlled-PRV Cable-Head Cutter For Line Conveyed Tools |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1764222A (en) * | 1923-09-15 | 1930-06-17 | William J Cheley | Well-shooting device |
US3073388A (en) * | 1960-06-21 | 1963-01-15 | Louis W Chenault | Wire line cutter |
US4572288A (en) * | 1984-06-15 | 1986-02-25 | J. C. Kinley Co. | Time-delayed ignition system for a down-hole explosive tool |
US5513570A (en) * | 1995-02-21 | 1996-05-07 | Western Atlas International, Inc. | Pressure actuated pipe cutting tool |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5369579A (en) * | 1994-01-24 | 1994-11-29 | Anderson; Otis R. | Electronic blast control system for downhole well operations |
-
2002
- 2002-10-24 AU AU2002350408A patent/AU2002350408B2/en not_active Ceased
- 2002-10-24 US US10/532,215 patent/US7588084B2/en not_active Expired - Fee Related
- 2002-10-24 DE DE60210516T patent/DE60210516T2/en not_active Expired - Lifetime
- 2002-10-24 CN CNB02829789XA patent/CN1329620C/en not_active Expired - Fee Related
- 2002-10-24 DK DK02785080T patent/DK1570152T3/en active
- 2002-10-24 AT AT02785080T patent/ATE322606T1/en active
- 2002-10-24 EP EP02785080A patent/EP1570152B1/en not_active Expired - Lifetime
- 2002-10-24 ES ES02785080T patent/ES2261755T3/en not_active Expired - Lifetime
- 2002-10-24 WO PCT/DK2002/000708 patent/WO2004038171A1/en not_active Application Discontinuation
- 2002-10-24 BR BRPI0215916-3A patent/BR0215916B8/en not_active IP Right Cessation
- 2002-10-24 PT PT02785080T patent/PT1570152E/en unknown
- 2002-10-24 CA CA2502006A patent/CA2502006C/en not_active Expired - Fee Related
-
2005
- 2005-04-12 NO NO20051787A patent/NO331886B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1764222A (en) * | 1923-09-15 | 1930-06-17 | William J Cheley | Well-shooting device |
US3073388A (en) * | 1960-06-21 | 1963-01-15 | Louis W Chenault | Wire line cutter |
US4572288A (en) * | 1984-06-15 | 1986-02-25 | J. C. Kinley Co. | Time-delayed ignition system for a down-hole explosive tool |
US5513570A (en) * | 1995-02-21 | 1996-05-07 | Western Atlas International, Inc. | Pressure actuated pipe cutting tool |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
NO20073205A (en) * | 2007-06-22 | 2008-08-11 | Aker Well Service As | Device and method for separating a tool string arranged in an oil / gas well |
NO325904B1 (en) * | 2007-06-22 | 2008-08-11 | Aker Well Service As | Apparatus and method for separating a tool string arranged in an oil / gas well |
WO2009002181A1 (en) * | 2007-06-22 | 2008-12-31 | Aker Well Service As | Arrangement and method for separation of tool string |
WO2012138231A1 (en) * | 2011-04-08 | 2012-10-11 | Deepwell As | Cutting tool for use in fluid-filled cavities and use of the tool |
NO334976B1 (en) * | 2011-04-08 | 2014-08-11 | Deepwell As | Cutting tool for use in fluid-filled cavities and method of cutting an elongated body in the fluid-filled cavity with the cutting tool |
Also Published As
Publication number | Publication date |
---|---|
DE60210516T2 (en) | 2006-11-30 |
BR0215916B1 (en) | 2013-01-08 |
CN1688788A (en) | 2005-10-26 |
DE60210516D1 (en) | 2006-05-18 |
AU2002350408B2 (en) | 2009-03-12 |
CA2502006C (en) | 2010-08-24 |
AU2002350408A1 (en) | 2004-05-13 |
ATE322606T1 (en) | 2006-04-15 |
EP1570152B1 (en) | 2006-04-05 |
US7588084B2 (en) | 2009-09-15 |
ES2261755T3 (en) | 2006-11-16 |
BR0215916A (en) | 2006-02-07 |
DK1570152T3 (en) | 2006-08-07 |
BR0215916B8 (en) | 2013-02-19 |
US20060011338A1 (en) | 2006-01-19 |
NO20051787D0 (en) | 2005-04-12 |
CA2502006A1 (en) | 2004-05-06 |
CN1329620C (en) | 2007-08-01 |
EP1570152A1 (en) | 2005-09-07 |
PT1570152E (en) | 2006-08-31 |
NO20051787L (en) | 2005-05-23 |
NO331886B1 (en) | 2012-04-30 |
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