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GB2178091B - Apparatus for cutting a drill collar - Google Patents

Apparatus for cutting a drill collar

Info

Publication number
GB2178091B
GB2178091B GB08615905A GB8615905A GB2178091B GB 2178091 B GB2178091 B GB 2178091B GB 08615905 A GB08615905 A GB 08615905A GB 8615905 A GB8615905 A GB 8615905A GB 2178091 B GB2178091 B GB 2178091B
Authority
GB
United Kingdom
Prior art keywords
cutting
drill collar
drill
collar
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
GB08615905A
Other versions
GB8615905D0 (en
GB2178091A (en
Inventor
James Nigel Smetham
Lazaris Lazari
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.)
Vetco Ltd C E
Baker Hughes Energy Technology UK Ltd
Original Assignee
Vetco Ltd C E
CE Vetco UK Ltd
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 Vetco Ltd C E, CE Vetco UK Ltd filed Critical Vetco Ltd C E
Publication of GB8615905D0 publication Critical patent/GB8615905D0/en
Publication of GB2178091A publication Critical patent/GB2178091A/en
Application granted granted Critical
Publication of GB2178091B publication Critical patent/GB2178091B/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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1014—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well
    • E21B17/1021—Flexible or expansible centering means, e.g. with pistons pressing against the wall of the well with articulated arms or arcuate springs
    • 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
    • E21B29/00—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/02—Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground by explosives or by thermal or chemical means

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Earth Drilling (AREA)
GB08615905A 1985-07-25 1986-06-30 Apparatus for cutting a drill collar Expired GB2178091B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858518808A GB8518808D0 (en) 1985-07-25 1985-07-25 Cutting drill collar

Publications (3)

Publication Number Publication Date
GB8615905D0 GB8615905D0 (en) 1986-08-06
GB2178091A GB2178091A (en) 1987-02-04
GB2178091B true GB2178091B (en) 1988-07-20

Family

ID=10582850

Family Applications (2)

Application Number Title Priority Date Filing Date
GB858518808A Pending GB8518808D0 (en) 1985-07-25 1985-07-25 Cutting drill collar
GB08615905A Expired GB2178091B (en) 1985-07-25 1986-06-30 Apparatus for cutting a drill collar

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB858518808A Pending GB8518808D0 (en) 1985-07-25 1985-07-25 Cutting drill collar

Country Status (5)

Country Link
EP (1) EP0210758A3 (en)
CN (1) CN86105695A (en)
DK (1) DK315686A (en)
GB (2) GB8518808D0 (en)
NO (1) NO862981L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109236200A (en) * 2018-09-28 2019-01-18 西南石油大学 A kind of adjustable centralizer of explosion driving

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5730218A (en) * 1996-01-31 1998-03-24 Fmc Corporation Tool protection guide with energy absorbing bumper
CN108555357A (en) * 2016-07-11 2018-09-21 乌鲁木齐九品芝麻信息科技有限公司 Drill bit, drilling equipment, boring method
CN114893135B (en) * 2022-05-07 2025-01-10 中建材岩土工程江苏有限公司 An intelligent drilling system for railway construction

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2761384A (en) * 1951-02-26 1956-09-04 William G Sweetman Device for cutting a pipe inside of a well
US3196951A (en) * 1962-04-30 1965-07-27 Schlumberger Well Surv Corp Centralizers
US3192857A (en) * 1962-10-08 1965-07-06 Jet Res Ct Inc Well tubing cutting device
US3568053A (en) * 1968-10-15 1971-03-02 Sinclair Oil Corp Apparatus for establishing electrical contact with the casing in a wellbore
US4042019A (en) * 1976-03-15 1977-08-16 Henning Jack A Wireline actuated tubing cutter
US4352397A (en) * 1980-10-03 1982-10-05 Jet Research Center, Inc. Methods, apparatus and pyrotechnic compositions for severing conduits
US4506219A (en) * 1982-07-30 1985-03-19 Schlumberger Technology Corporation Borehole tool outrigger arm displacement control mechanism
FR2545872B1 (en) * 1983-05-10 1985-07-26 Schlumberger Prospection APPARATUS FOR CENTERING A TOOL IN A TUBE WELL, PARTICULARLY FOR DEVIE WELLS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109236200A (en) * 2018-09-28 2019-01-18 西南石油大学 A kind of adjustable centralizer of explosion driving

Also Published As

Publication number Publication date
DK315686A (en) 1987-01-26
GB8518808D0 (en) 1985-08-29
GB8615905D0 (en) 1986-08-06
GB2178091A (en) 1987-02-04
EP0210758A3 (en) 1989-07-26
NO862981D0 (en) 1986-07-24
CN86105695A (en) 1987-01-21
NO862981L (en) 1987-01-26
EP0210758A2 (en) 1987-02-04
DK315686D0 (en) 1986-07-02

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Legal Events

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

Effective date: 19930630