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GB8624852D0 - Locking mechanism - Google Patents

Locking mechanism

Info

Publication number
GB8624852D0
GB8624852D0 GB868624852A GB8624852A GB8624852D0 GB 8624852 D0 GB8624852 D0 GB 8624852D0 GB 868624852 A GB868624852 A GB 868624852A GB 8624852 A GB8624852 A GB 8624852A GB 8624852 D0 GB8624852 D0 GB 8624852D0
Authority
GB
United Kingdom
Prior art keywords
locking mechanism
locking
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.)
Granted
Application number
GB868624852A
Other versions
GB2184760A (en
GB2184760B (en
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.)
VOLKER STEVIN OFFSHORE UK Ltd
Original Assignee
VOLKER STEVIN OFFSHORE UK 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
Application filed by VOLKER STEVIN OFFSHORE UK Ltd filed Critical VOLKER STEVIN OFFSHORE UK Ltd
Publication of GB8624852D0 publication Critical patent/GB8624852D0/en
Publication of GB2184760A publication Critical patent/GB2184760A/en
Application granted granted Critical
Publication of GB2184760B publication Critical patent/GB2184760B/en
Expired legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/12Grappling tools, e.g. tongs or grabs
    • E21B31/18Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B31/00Fishing for or freeing objects in boreholes or wells
    • E21B31/12Grappling tools, e.g. tongs or grabs
    • E21B31/16Grappling tools, e.g. tongs or grabs combined with cutting or destroying means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Marine Sciences & Fisheries (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
GB8624852A 1985-10-25 1986-10-16 Improved well tool Expired GB2184760B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858526360A GB8526360D0 (en) 1985-10-25 1985-10-25 Well tool

Publications (3)

Publication Number Publication Date
GB8624852D0 true GB8624852D0 (en) 1986-11-19
GB2184760A GB2184760A (en) 1987-07-01
GB2184760B GB2184760B (en) 1989-04-05

Family

ID=10587251

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858526360A Pending GB8526360D0 (en) 1985-10-25 1985-10-25 Well tool
GB8624852A Expired GB2184760B (en) 1985-10-25 1986-10-16 Improved well tool

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858526360A Pending GB8526360D0 (en) 1985-10-25 1985-10-25 Well tool

Country Status (1)

Country Link
GB (2) GB8526360D0 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5085479A (en) * 1988-11-28 1992-02-04 Taylor William T Vertically manipulated ratchet fishing tool
US5398754A (en) * 1994-01-25 1995-03-21 Baker Hughes Incorporated Retrievable whipstock anchor assembly
US7311346B2 (en) 2001-09-26 2007-12-25 Bakke Technology As Arrangement in a gripper mechanism for a free pipe/rodlike end portion of a downhole tool
CN104929558B (en) * 2015-06-23 2017-10-20 中国石油集团渤海钻探工程有限公司 Fixed point takes set process
CN106761520B (en) * 2016-12-13 2023-07-11 中国石油化工股份有限公司 Mechanical sleeving and fishing integrated tool and using method thereof
CN108729871B (en) * 2017-04-25 2022-05-03 中国石油化工股份有限公司 Fishing tool
GB201710082D0 (en) * 2017-06-23 2017-08-09 Sparrow Roger Lionel David Adjustable seat post

Also Published As

Publication number Publication date
GB8526360D0 (en) 1985-11-27
GB2184760A (en) 1987-07-01
GB2184760B (en) 1989-04-05

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Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 20061015