DK0405799T3 - Stødmekanisme - Google Patents

Stødmekanisme

Info

Publication number
DK0405799T3
DK0405799T3 DK90306542.3T DK90306542T DK0405799T3 DK 0405799 T3 DK0405799 T3 DK 0405799T3 DK 90306542 T DK90306542 T DK 90306542T DK 0405799 T3 DK0405799 T3 DK 0405799T3
Authority
DK
Denmark
Prior art keywords
piston
jar
release device
jar member
fluid chamber
Prior art date
Application number
DK90306542.3T
Other languages
English (en)
Inventor
Michael Adam Reid
Original Assignee
Well Equip Ltd
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
Priority claimed from GB898914932A external-priority patent/GB8914932D0/en
Priority claimed from GB909003372A external-priority patent/GB9003372D0/en
Application filed by Well Equip Ltd filed Critical Well Equip Ltd
Application granted granted Critical
Publication of DK0405799T3 publication Critical patent/DK0405799T3/da

Links

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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
    • 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
    • E21B31/00—Fishing for or freeing objects in boreholes or wells
    • E21B31/107—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars
    • E21B31/113—Fishing for or freeing objects in boreholes or wells using impact means for releasing stuck parts, e.g. jars hydraulically-operated
    • E21B31/1135—Jars with a hydraulic impedance mechanism, i.e. a restriction, for initially delaying escape of a restraining fluid

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Engineering & Computer Science (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Fluid-Damping Devices (AREA)
  • Actuator (AREA)
  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
  • Earth Drilling (AREA)
  • Vending Machines For Individual Products (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Surgical Instruments (AREA)
DK90306542.3T 1989-06-29 1990-06-15 Stødmekanisme DK0405799T3 (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB898914932A GB8914932D0 (en) 1989-06-29 1989-06-29 A jar mechanism
GB909003372A GB9003372D0 (en) 1990-02-14 1990-02-14 A jar mechanism

Publications (1)

Publication Number Publication Date
DK0405799T3 true DK0405799T3 (da) 1995-08-14

Family

ID=26295554

Family Applications (1)

Application Number Title Priority Date Filing Date
DK90306542.3T DK0405799T3 (da) 1989-06-29 1990-06-15 Stødmekanisme

Country Status (5)

Country Link
US (1) US5052485A (da)
EP (1) EP0405799B1 (da)
AT (1) ATE120255T1 (da)
DE (1) DE69017958T2 (da)
DK (1) DK0405799T3 (da)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217070A (en) * 1992-05-06 1993-06-08 Anderson Clifford J Drill string jarring and bumping tool
US5338822A (en) * 1992-10-02 1994-08-16 Cargill, Incorporated Melt-stable lactide polymer composition and process for manufacture thereof
US5411107A (en) * 1993-08-03 1995-05-02 Hailey; Charles D. Coil tubing hydraulic jar device
US5495902A (en) * 1993-08-03 1996-03-05 Hailey; Charles D. Coil tubing hydraulic jar device
US6308779B1 (en) * 1999-09-16 2001-10-30 Mcneilly A. Keith Hydraulically driven fishing jars
GB2362904B (en) * 2000-05-12 2004-08-11 Bd Kendle Engineering Ltd Improved jar mechanism
RU2190080C2 (ru) * 2000-11-29 2002-09-27 Открытое акционерное общество "Научно-производственное объединение "Бурение" Глубинный гидродомкрат для ликвидации прихватов
AU2002220833A1 (en) * 2001-11-27 2003-06-17 Weatherford/Lamb, Inc. Hydraulic-mechanical jar tool
US6948560B2 (en) 2004-02-25 2005-09-27 Varco I/P, Inc. Jar for use in a downhole toolstring
US9631446B2 (en) 2013-06-26 2017-04-25 Impact Selector International, Llc Impact sensing during jarring operations
RU2669415C2 (ru) 2013-06-26 2018-10-11 Импэкт Силектор Интернэшнл, Ллк Скважинное регулировочное воздействующее устройство и способы его действия
US9951602B2 (en) 2015-03-05 2018-04-24 Impact Selector International, Llc Impact sensing during jarring operations
CN107676054B (zh) * 2017-10-25 2023-11-28 中国石油天然气股份有限公司 一种井下节流器打捞工具及操作方法
US10844683B2 (en) 2018-04-03 2020-11-24 Weatherford Technology Holdings, Llc Hydraulic drilling jar with hydraulic lock piston

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1005810A (en) * 1975-03-03 1977-02-22 Jarco Services Ltd. Drill string jarring and bumping tool with piston disconnect
US4007798A (en) * 1975-10-06 1977-02-15 Otis Engineering Corporation Hydraulic jar
US4142597A (en) * 1977-04-08 1979-03-06 Otis Engineering Corporation Mechanical detent jars
GB1600999A (en) * 1977-10-24 1981-10-21 Wenzel K H Hydraulic bumper jar
US4181186A (en) * 1978-09-05 1980-01-01 Dresser Industries, Inc. Sleeve valve hydraulic jar tool
US4478284A (en) * 1982-02-25 1984-10-23 Bralorne Resources Limited Jar tool
GB8333957D0 (en) * 1983-12-21 1984-02-01 Zwart K Wireline jar
GB8620770D0 (en) * 1986-08-28 1986-10-08 Bryant E E Downhole tool

Also Published As

Publication number Publication date
ATE120255T1 (de) 1995-04-15
US5052485A (en) 1991-10-01
DE69017958T2 (de) 1995-12-14
EP0405799B1 (en) 1995-03-22
EP0405799A1 (en) 1991-01-02
DE69017958D1 (de) 1995-04-27

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