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GB2185279B - Improved well tool - Google Patents

Improved well tool

Info

Publication number
GB2185279B
GB2185279B GB08623952A GB8623952A GB2185279B GB 2185279 B GB2185279 B GB 2185279B GB 08623952 A GB08623952 A GB 08623952A GB 8623952 A GB8623952 A GB 8623952A GB 2185279 B GB2185279 B GB 2185279B
Authority
GB
United Kingdom
Prior art keywords
well tool
improved well
improved
tool
well
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.)
Expired
Application number
GB08623952A
Other versions
GB8623952D0 (en
GB2185279A (en
Inventor
Alexander Charles Inglis
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
Original Assignee
VOLKER STEVIN OFFSHORE
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 GB858524619A external-priority patent/GB8524619D0/en
Application filed by VOLKER STEVIN OFFSHORE filed Critical VOLKER STEVIN OFFSHORE
Priority to GB08623952A priority Critical patent/GB2185279B/en
Publication of GB8623952D0 publication Critical patent/GB8623952D0/en
Publication of GB2185279A publication Critical patent/GB2185279A/en
Application granted granted Critical
Publication of GB2185279B publication Critical patent/GB2185279B/en
Expired legal-status Critical Current

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
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/20—Grappling tools, e.g. tongs or grabs gripping internally, e.g. fishing spears
    • 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
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • 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
    • E21B31/12—Grappling tools, e.g. tongs or grabs
    • E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Marine Sciences & Fisheries (AREA)
GB08623952A 1985-10-05 1986-10-06 Improved well tool Expired GB2185279B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08623952A GB2185279B (en) 1985-10-05 1986-10-06 Improved well tool

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858524619A GB8524619D0 (en) 1985-10-05 1985-10-05 Well tool
GB08623952A GB2185279B (en) 1985-10-05 1986-10-06 Improved well tool

Publications (3)

Publication Number Publication Date
GB8623952D0 GB8623952D0 (en) 1986-11-12
GB2185279A GB2185279A (en) 1987-07-15
GB2185279B true GB2185279B (en) 1988-12-29

Family

ID=26289855

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08623952A Expired GB2185279B (en) 1985-10-05 1986-10-06 Improved well tool

Country Status (1)

Country Link
GB (1) GB2185279B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2303864B (en) * 1995-08-02 1999-03-03 Philip Head Object retrieving device
WO2003027434A1 (en) 2001-09-26 2003-04-03 Bakke Technology As Arrangement in a gripper mechanism for a free pipe/rodlike end portion of a downhole tool
CN112145112B (en) * 2020-11-10 2022-04-15 西南石油大学 Electric drive throwing-fishing type milling-fishing combined tool

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4113012A (en) * 1977-10-27 1978-09-12 Halliburton Company Reclosable circulation valve for use in oil well testing

Also Published As

Publication number Publication date
GB8623952D0 (en) 1986-11-12
GB2185279A (en) 1987-07-15

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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: 20061005