NO870917L - SkjŸteanordning for borerŸr. - Google Patents

SkjŸteanordning for borerŸr.

Info

Publication number
NO870917L
NO870917L NO870917A NO870917A NO870917L NO 870917 L NO870917 L NO 870917L NO 870917 A NO870917 A NO 870917A NO 870917 A NO870917 A NO 870917A NO 870917 L NO870917 L NO 870917L
Authority
NO
Norway
Prior art keywords
drills
joint device
joint
Prior art date
Application number
NO870917A
Other languages
English (en)
Other versions
NO870917D0 (no
Inventor
Herve Righi
Georges Obrecht
Original Assignee
Alsthom Sa
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 Alsthom Sa filed Critical Alsthom Sa
Publication of NO870917D0 publication Critical patent/NO870917D0/no
Publication of NO870917L publication Critical patent/NO870917L/no

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
    • E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
    • E21B17/06—Releasing-joints, e.g. safety joints
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S285/00—Pipe joints or couplings
    • Y10S285/922—Safety and quick release for drill pipes

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)
NO870917A 1986-03-10 1987-03-05 SkjŸteanordning for borerŸr. NO870917L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8603377A FR2595404B1 (fr) 1986-03-10 1986-03-10 Raccord pour forage

Publications (2)

Publication Number Publication Date
NO870917D0 NO870917D0 (no) 1987-03-05
NO870917L true NO870917L (no) 1987-09-11

Family

ID=9332950

Family Applications (1)

Application Number Title Priority Date Filing Date
NO870917A NO870917L (no) 1986-03-10 1987-03-05 SkjŸteanordning for borerŸr.

Country Status (6)

Country Link
US (1) US4728124A (no)
EP (1) EP0236915A1 (no)
JP (1) JPS62220690A (no)
BR (1) BR8701085A (no)
FR (1) FR2595404B1 (no)
NO (1) NO870917L (no)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63268895A (ja) * 1987-04-08 1988-11-07 インコ、リミテッド ドリル刃と衝撃ハンマ、および刃保持リング
US5141014A (en) * 1991-05-28 1992-08-25 M. Carder Industries, Inc. Breakaway coupling
US5158142A (en) * 1991-06-27 1992-10-27 Schlumberger Technology Corporation Apparatus for releasing a pipe string from an object stuck downhole by continuously applying tension to said apparatus
GB2317629B (en) * 1996-09-27 2001-03-28 Red Baron Safety joint
EG21606A (en) * 1997-02-25 2001-12-31 Shell Int Research Drill string tool
US6311790B1 (en) 2000-05-23 2001-11-06 The Charles Machines Works, Inc. Removable boring head with tapered shank connector
GB0101014D0 (en) * 2001-01-15 2001-02-28 Neyrfor Weir Ltd Improved downhole tool
GB2380746B (en) * 2001-10-09 2006-02-15 Smith International Wellbore recovery operation
US20120306196A1 (en) * 2011-06-01 2012-12-06 Smith International, Inc. Anti-back off device for down hole tools and drive systems
US9869138B2 (en) * 2014-08-20 2018-01-16 Schlumberger Technology Corporation Methods and apparatus for releasably connecting a cable with a tool
CN112031670B (zh) * 2020-08-21 2022-01-28 中煤科工集团西安研究院有限公司 一种具有防掉钻功能的矿用钻杆
CN112227975B (zh) * 2020-09-29 2022-03-15 中煤科工集团西安研究院有限公司 一种仿动物筋-骨结构的双连接钻杆
CN113700441B (zh) * 2021-11-01 2021-12-31 中煤科工集团西安研究院有限公司 一种具有断裂自锁功能的矿用钻杆公接头及钻杆

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1839690A (en) * 1929-06-17 1932-01-05 Malinowski Chester Twist-off safety coupling
US3387863A (en) * 1966-09-12 1968-06-11 Dresser Ind Safety joint
US3499664A (en) * 1968-07-29 1970-03-10 Bruns Tool Co Releasing collar
US3842914A (en) * 1973-05-14 1974-10-22 Hydril Co Safety joint method and apparatus
US4139059A (en) * 1977-12-12 1979-02-13 W-K-M Wellhead Systems, Inc. Well casing hanger assembly
US4459060A (en) * 1981-10-13 1984-07-10 Patterson Bert D Safety shear tool for fiberglass sucker rod
US4473125A (en) * 1982-11-17 1984-09-25 Fansteel Inc. Insert for drill bits and drill stabilizers
US4484633A (en) * 1983-04-11 1984-11-27 Halliburton Company Safety joint

Also Published As

Publication number Publication date
FR2595404B1 (fr) 1988-07-08
US4728124A (en) 1988-03-01
EP0236915A1 (fr) 1987-09-16
FR2595404A1 (fr) 1987-09-11
BR8701085A (pt) 1987-12-29
JPS62220690A (ja) 1987-09-28
NO870917D0 (no) 1987-03-05

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