GB8514047D0 - Lifting device - Google Patents

Lifting device

Info

Publication number
GB8514047D0
GB8514047D0 GB858514047A GB8514047A GB8514047D0 GB 8514047 D0 GB8514047 D0 GB 8514047D0 GB 858514047 A GB858514047 A GB 858514047A GB 8514047 A GB8514047 A GB 8514047A GB 8514047 D0 GB8514047 D0 GB 8514047D0
Authority
GB
United Kingdom
Prior art keywords
lifting device
lifting
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Withdrawn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
GB858514047A
Other versions
GB2160241A (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.)
Graser J A
Original Assignee
Graser J A
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 Graser J A filed Critical Graser J A
Publication of GB8514047D0 publication Critical patent/GB8514047D0/en
Publication of GB2160241A publication Critical patent/GB2160241A/en
Withdrawn legal-status Critical Current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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0421—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion using multiple hydraulically interconnected pistons
    • 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
    • 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
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0411—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for anchoring tools or the like to the borehole wall or to well tube
    • E21B23/04115—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion specially adapted for anchoring tools or the like to the borehole wall or to well tube using radial pistons
    • 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
    • E21B23/04—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion
    • E21B23/0416—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells operated by fluid means, e.g. actuated by explosion characterised by force amplification arrangements
    • 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

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)
  • Earth Drilling (AREA)
GB08514047A 1984-06-16 1985-06-04 Lifting device Withdrawn GB2160241A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848415407A GB8415407D0 (en) 1984-06-16 1984-06-16 Wireline apparatus

Publications (2)

Publication Number Publication Date
GB8514047D0 true GB8514047D0 (en) 1985-07-10
GB2160241A GB2160241A (en) 1985-12-18

Family

ID=10562548

Family Applications (2)

Application Number Title Priority Date Filing Date
GB848415407A Pending GB8415407D0 (en) 1984-06-16 1984-06-16 Wireline apparatus
GB08514047A Withdrawn GB2160241A (en) 1984-06-16 1985-06-04 Lifting device

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB848415407A Pending GB8415407D0 (en) 1984-06-16 1984-06-16 Wireline apparatus

Country Status (1)

Country Link
GB (2) GB8415407D0 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2003348C (en) * 1988-12-16 1995-05-16 Lionel J. Milberger Casing hanger running and retrieval tools
GB9015037D0 (en) * 1990-07-07 1990-08-29 Well Equip Ltd An impact mechanism
GB9107282D0 (en) * 1991-04-06 1991-05-22 Petroline Wireline Services Retrievable bridge plug and a running tool therefor
US8365826B2 (en) 2009-08-06 2013-02-05 Tiw Corporation Hydraulically powered fishing tool and method
AU2015224487B2 (en) 2014-09-11 2017-04-20 Weatherford Technology Holdings, Llc Downhole casing pulling tool

Also Published As

Publication number Publication date
GB2160241A (en) 1985-12-18
GB8415407D0 (en) 1984-07-18

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)