GB9516114D0 - Improved downhole apparatus - Google Patents

Improved downhole apparatus

Info

Publication number
GB9516114D0
GB9516114D0 GBGB9516114.7A GB9516114A GB9516114D0 GB 9516114 D0 GB9516114 D0 GB 9516114D0 GB 9516114 A GB9516114 A GB 9516114A GB 9516114 D0 GB9516114 D0 GB 9516114D0
Authority
GB
United Kingdom
Prior art keywords
downhole apparatus
improved downhole
improved
downhole
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.)
Pending
Application number
GBGB9516114.7A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GBGB9516114.7A priority Critical patent/GB9516114D0/en
Priority to PCT/GB1995/002046 priority patent/WO1997005759A2/en
Priority to AU33919/95A priority patent/AU3391995A/en
Publication of GB9516114D0 publication Critical patent/GB9516114D0/en
Priority to EP96927752A priority patent/EP0846218A1/en
Priority to CA002228840A priority patent/CA2228840A1/en
Priority to AU67458/96A priority patent/AU6745896A/en
Priority to US09/011,030 priority patent/US6152224A/en
Priority to PCT/GB1996/001907 priority patent/WO1997006344A1/en
Priority to GB9802495A priority patent/GB2319550B/en
Priority to GB9616404A priority patent/GB2304132B/en
Priority to NO980507A priority patent/NO980507L/en
Pending 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
    • E21B23/004—Indexing systems for guiding relative movement between telescoping parts of downhole tools
    • E21B23/006—"J-slot" systems, i.e. lug and slot indexing mechanisms
    • 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
    • E21B23/042—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 a single piston or multiple mechanically 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
    • E21B23/06—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for setting packers
    • 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
    • E21B33/00—Sealing or packing boreholes or wells
    • E21B33/10—Sealing or packing boreholes or wells in the borehole
    • E21B33/12—Packers; Plugs
    • E21B33/127—Packers; Plugs with inflatable sleeve

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)
  • Pipe Accessories (AREA)
  • Lift Valve (AREA)
  • Details Of Valves (AREA)
GBGB9516114.7A 1995-08-05 1995-08-05 Improved downhole apparatus Pending GB9516114D0 (en)

Priority Applications (11)

Application Number Priority Date Filing Date Title
GBGB9516114.7A GB9516114D0 (en) 1995-08-05 1995-08-05 Improved downhole apparatus
PCT/GB1995/002046 WO1997005759A2 (en) 1995-08-05 1995-08-31 Improved downhole apparatus
AU33919/95A AU3391995A (en) 1995-08-05 1995-08-31 Improved downhole apparatus
GB9616404A GB2304132B (en) 1995-08-05 1996-08-05 Downhole apparatus
CA002228840A CA2228840A1 (en) 1995-08-05 1996-08-05 Downhole apparatus
EP96927752A EP0846218A1 (en) 1995-08-05 1996-08-05 Downhole apparatus
AU67458/96A AU6745896A (en) 1995-08-05 1996-08-05 Downhole apparatus
US09/011,030 US6152224A (en) 1995-08-05 1996-08-05 Downhole apparatus
PCT/GB1996/001907 WO1997006344A1 (en) 1995-08-05 1996-08-05 Downhole apparatus
GB9802495A GB2319550B (en) 1995-08-05 1996-08-05 Downhole apparatus
NO980507A NO980507L (en) 1995-08-05 1998-02-05 Downhole apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9516114.7A GB9516114D0 (en) 1995-08-05 1995-08-05 Improved downhole apparatus

Publications (1)

Publication Number Publication Date
GB9516114D0 true GB9516114D0 (en) 1995-10-04

Family

ID=10778842

Family Applications (1)

Application Number Title Priority Date Filing Date
GBGB9516114.7A Pending GB9516114D0 (en) 1995-08-05 1995-08-05 Improved downhole apparatus

Country Status (3)

Country Link
AU (1) AU3391995A (en)
GB (1) GB9516114D0 (en)
WO (1) WO1997005759A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2228840A1 (en) * 1995-08-05 1997-02-20 Clive John French Downhole apparatus
GB9721496D0 (en) 1997-10-09 1997-12-10 Ocre Scotland Ltd Downhole valve
GB9913557D0 (en) 1999-06-10 1999-08-11 French Oilfield Services Ltd Hydraulic control assembly
CN102900394B (en) * 2011-07-25 2015-07-22 中国石油天然气集团公司 Packer capable of washing well and examining seal

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3823773A (en) * 1972-10-30 1974-07-16 Schlumberger Technology Corp Pressure controlled drill stem tester with reversing valve
RO89841A (en) * 1983-02-04 1986-07-30 Van Gils Adrianus W.,Nl BLOW-OUT PREVENTER
GB8514887D0 (en) * 1985-06-12 1985-07-17 Smedvig Peder As Down-hole blow-out preventers
US4817723A (en) * 1987-07-27 1989-04-04 Halliburton Company Apparatus for retaining axial mandrel movement relative to a cylindrical housing
US5291947A (en) * 1992-06-08 1994-03-08 Atlantic Richfield Company Tubing conveyed wellbore straddle packer system
GB2272774B (en) * 1992-11-13 1996-06-19 Clive French Completion test tool
US5396953A (en) * 1993-07-30 1995-03-14 Halliburton Company Positive circulating valve with retrievable standing valve

Also Published As

Publication number Publication date
AU3391995A (en) 1997-03-05
WO1997005759A3 (en) 1997-04-17
WO1997005759A2 (en) 1997-02-20

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Legal Events

Date Code Title Description
730 Substitution of applicants allowed (sect. 30/1977)