AU3391995A - Improved downhole apparatus - Google Patents

Improved downhole apparatus

Info

Publication number
AU3391995A
AU3391995A AU33919/95A AU3391995A AU3391995A AU 3391995 A AU3391995 A AU 3391995A AU 33919/95 A AU33919/95 A AU 33919/95A AU 3391995 A AU3391995 A AU 3391995A AU 3391995 A AU3391995 A AU 3391995A
Authority
AU
Australia
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.)
Abandoned
Application number
AU33919/95A
Inventor
Clive French
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
Publication of AU3391995A publication Critical patent/AU3391995A/en
Abandoned legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 the 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 the boreholes or wells
    • E21B23/06—Apparatus for displacing, setting, locking, releasing, or removing tools, packers or the like in the boreholes or wells for setting packers
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
AU33919/95A 1995-08-05 1995-08-31 Improved downhole apparatus Abandoned AU3391995A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB9516114 1995-08-05
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

Publications (1)

Publication Number Publication Date
AU3391995A true AU3391995A (en) 1997-03-05

Family

ID=10778842

Family Applications (1)

Application Number Title Priority Date Filing Date
AU33919/95A Abandoned AU3391995A (en) 1995-08-05 1995-08-31 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
US6152224A (en) * 1995-08-05 2000-11-28 French; Clive John 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
WO1997005759A2 (en) 1997-02-20
GB9516114D0 (en) 1995-10-04
WO1997005759A3 (en) 1997-04-17

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