CA1182441A - Releasing device in core barrel grapplers - Google Patents

Releasing device in core barrel grapplers

Info

Publication number
CA1182441A
CA1182441A CA000387561A CA387561A CA1182441A CA 1182441 A CA1182441 A CA 1182441A CA 000387561 A CA000387561 A CA 000387561A CA 387561 A CA387561 A CA 387561A CA 1182441 A CA1182441 A CA 1182441A
Authority
CA
Canada
Prior art keywords
grappling
drill rod
sleeve
core barrel
disengaging
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
CA000387561A
Other languages
English (en)
French (fr)
Inventor
Sune W. Eriksson
Gunnar K. Egnelov
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.)
Craelius AB
Original Assignee
Craelius AB
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 Craelius AB filed Critical Craelius AB
Application granted granted Critical
Publication of CA1182441A publication Critical patent/CA1182441A/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
    • E21B25/00—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors
    • E21B25/02—Apparatus for obtaining or removing undisturbed cores, e.g. core barrels or core extractors the core receiver being insertable into, or removable from, the borehole without withdrawing the drilling pipe

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)
  • Earth Drilling (AREA)
  • Drilling And Boring (AREA)
CA000387561A 1980-10-08 1981-10-08 Releasing device in core barrel grapplers Expired CA1182441A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8007045A SE423924B (sv) 1980-10-08 1980-10-08 Anordning for frikoppling av en fangstanordning fran ett kernror i ett borror
SE8007045-1 1980-10-08

Publications (1)

Publication Number Publication Date
CA1182441A true CA1182441A (en) 1985-02-12

Family

ID=20341934

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000387561A Expired CA1182441A (en) 1980-10-08 1981-10-08 Releasing device in core barrel grapplers

Country Status (9)

Country Link
US (1) US4431225A (enExample)
EP (1) EP0049698B1 (enExample)
JP (1) JPS5792294A (enExample)
AU (1) AU539058B2 (enExample)
CA (1) CA1182441A (enExample)
DE (1) DE3175763D1 (enExample)
IN (1) IN154260B (enExample)
SE (1) SE423924B (enExample)
ZA (1) ZA816909B (enExample)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5041020A (en) * 1990-07-10 1991-08-20 Amp Incorporated F series coaxial cable adapter
US5551196A (en) * 1993-06-17 1996-09-03 Rylock Company Ltd. Window assembly having dead air spaces formed by non conductive members
RU2159321C1 (ru) * 1999-04-13 2000-11-20 Санкт-Петербургский государственный горный институт им. Г.В. Плеханова (Технический университет) Распорный узел колонкового набора
DE102008002835B4 (de) 2008-04-30 2012-09-06 Universität Bremen vertreten durch den Rektor Hakenfänger
AU2014222873B2 (en) * 2013-03-01 2017-06-29 Sandvik Intellectual Property Ab Overshot tool having latch control means
CN113513282B (zh) * 2021-08-10 2022-08-05 中国船舶科学研究中心 一种深部原位岩芯抓取装置及其操作方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB286101A (en) * 1927-03-21 1928-03-01 Matvey Alcunovitch Capeliushni Bore-hole apparatus
US2948340A (en) * 1954-07-09 1960-08-09 Otis Eng Co Well tools
US2893693A (en) * 1957-09-11 1959-07-07 Clark Wallace Down-hole motor positioning device
US2980185A (en) * 1958-07-11 1961-04-18 Camco Inc Retrievable well tool hanger
US3319719A (en) * 1964-06-16 1967-05-16 Perry J Decuir Cam biased well anchor with detachable setting means
US3537743A (en) * 1966-08-10 1970-11-03 Boyles Bros Drilling Co Core drilling system
US3441098A (en) * 1966-08-10 1969-04-29 Boyles Bros Drilling Co Core drilling system
SE332402B (enExample) * 1970-04-30 1971-02-08 Atlas Copco Ab

Also Published As

Publication number Publication date
JPS5792294A (en) 1982-06-08
AU7605381A (en) 1982-04-22
EP0049698B1 (en) 1986-12-30
EP0049698A2 (en) 1982-04-14
IN154260B (enExample) 1984-10-13
EP0049698A3 (en) 1984-08-01
ZA816909B (en) 1982-09-29
SE423924B (sv) 1982-06-14
DE3175763D1 (en) 1987-02-05
SE8007045L (sv) 1982-04-09
US4431225A (en) 1984-02-14
AU539058B2 (en) 1984-09-06

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Legal Events

Date Code Title Description
MKEX Expiry