GB2335960B - A release equipment for a drill string - Google Patents

A release equipment for a drill string

Info

Publication number
GB2335960B
GB2335960B GB9914900A GB9914900A GB2335960B GB 2335960 B GB2335960 B GB 2335960B GB 9914900 A GB9914900 A GB 9914900A GB 9914900 A GB9914900 A GB 9914900A GB 2335960 B GB2335960 B GB 2335960B
Authority
GB
United Kingdom
Prior art keywords
drill string
release equipment
release
equipment
drill
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 - Fee Related
Application number
GB9914900A
Other versions
GB9914900D0 (en
GB2335960A (en
Inventor
Thor Bjornstad
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 GB9914900D0 publication Critical patent/GB9914900D0/en
Publication of GB2335960A publication Critical patent/GB2335960A/en
Application granted granted Critical
Publication of GB2335960B publication Critical patent/GB2335960B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/023—Arrangements for connecting cables or wirelines to downhole devices
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/02—Couplings; joints
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/042—Threaded
    • E21B17/043—Threaded with locking means

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
GB9914900A 1997-01-27 1998-01-14 A release equipment for a drill string Expired - Fee Related GB2335960B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO970335A NO970335A (en) 1997-01-27 1997-01-27 Drill string release equipment
PCT/NO1998/000012 WO1998032946A1 (en) 1997-01-27 1998-01-14 A release equipment for a drill string

Publications (3)

Publication Number Publication Date
GB9914900D0 GB9914900D0 (en) 1999-08-25
GB2335960A GB2335960A (en) 1999-10-06
GB2335960B true GB2335960B (en) 2001-03-07

Family

ID=19900298

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9914900A Expired - Fee Related GB2335960B (en) 1997-01-27 1998-01-14 A release equipment for a drill string

Country Status (4)

Country Link
AU (1) AU5885998A (en)
GB (1) GB2335960B (en)
NO (1) NO970335A (en)
WO (1) WO1998032946A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0029097D0 (en) * 2000-11-29 2001-01-10 B D Kendle Engineering Ltd Dimple disconnect
US7100696B2 (en) * 2001-10-01 2006-09-05 Weatherford/Lamb, Inc. Disconnect for use in a wellbore
NO318013B1 (en) 2003-03-21 2005-01-17 Bakke Oil Tools As Device and method for disconnecting a tool from a pipe string
NO339511B1 (en) * 2013-11-28 2016-12-27 4Subsea As Safety release device
CN103924920B (en) * 2014-04-24 2016-03-16 王岳 Drilling tool is with brill safety device
CN106869847A (en) * 2015-12-11 2017-06-20 贵州高峰石油机械股份有限公司 A kind of underground right-hand thread drilling tool Refloatation method and the back-off joint for being used
WO2018140462A1 (en) * 2017-01-24 2018-08-02 Enventure Global Technology, Inc. Hydraulically actuated safety sub
WO2021097011A1 (en) * 2019-11-14 2021-05-20 Schlumberger Technology Corporation Torque transfer system

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE528255C (en) * 1928-12-27 1931-06-26 Doheny Stone Drill Co Safety connection for pipe rods in deep boreholes with detachable locking device
US3895829A (en) * 1974-02-04 1975-07-22 Halliburton Co Releasable pipe connector
EP0244194A2 (en) * 1986-04-28 1987-11-04 Mobil Oil Corporation Anti-rotation tubular connection for flowlines or the like

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE528255C (en) * 1928-12-27 1931-06-26 Doheny Stone Drill Co Safety connection for pipe rods in deep boreholes with detachable locking device
US3895829A (en) * 1974-02-04 1975-07-22 Halliburton Co Releasable pipe connector
EP0244194A2 (en) * 1986-04-28 1987-11-04 Mobil Oil Corporation Anti-rotation tubular connection for flowlines or the like

Also Published As

Publication number Publication date
NO303351B1 (en) 1998-06-29
GB9914900D0 (en) 1999-08-25
NO970335A (en) 1998-06-29
GB2335960A (en) 1999-10-06
NO970335D0 (en) 1997-01-27
AU5885998A (en) 1998-08-18
WO1998032946A1 (en) 1998-07-30

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20160114