FR2014486A1 - - Google Patents

Info

Publication number
FR2014486A1
FR2014486A1 FR6921772A FR6921772A FR2014486A1 FR 2014486 A1 FR2014486 A1 FR 2014486A1 FR 6921772 A FR6921772 A FR 6921772A FR 6921772 A FR6921772 A FR 6921772A FR 2014486 A1 FR2014486 A1 FR 2014486A1
Authority
FR
France
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.)
Withdrawn
Application number
FR6921772A
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.)
Atlas Copco AB
Original Assignee
Atlas Copco 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 Atlas Copco AB filed Critical Atlas Copco AB
Publication of FR2014486A1 publication Critical patent/FR2014486A1/fr
Withdrawn legal-status Critical Current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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells
    • E21B23/02—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in boreholes or wells for locking the tools or the like in landing nipples or in recesses between adjacent sections of tubing
    • 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
    • E21B23/00—Apparatus for displacing, setting, locking, releasing or removing tools, packers or the like in 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 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 Tools (AREA)
FR6921772A 1968-07-02 1969-06-27 Withdrawn FR2014486A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9109/68A SE320942B (fr) 1968-07-02 1968-07-02

Publications (1)

Publication Number Publication Date
FR2014486A1 true FR2014486A1 (fr) 1970-04-17

Family

ID=20275860

Family Applications (1)

Application Number Title Priority Date Filing Date
FR6921772A Withdrawn FR2014486A1 (fr) 1968-07-02 1969-06-27

Country Status (5)

Country Link
US (1) US3610675A (fr)
DE (1) DE1933481B2 (fr)
FR (1) FR2014486A1 (fr)
GB (1) GB1248863A (fr)
SE (1) SE320942B (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389754A1 (fr) * 1977-05-03 1978-12-01 Diamant Boart Sa

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE517190C2 (sv) * 1999-08-24 2002-05-07 Atlas Copco Rocktech Ab Spärranordning för en linkärnborr, linkärnborranordning samt förfarande vid linkärnborrning
EP2961917B1 (fr) * 2013-03-01 2018-09-19 Sandvik Intellectual Property AB Outil de repêchage comportant un moyen de commande de verrouillage
CN106499341A (zh) * 2015-09-04 2017-03-15 钟建华 便携式防滑摆取芯钻头
CN112595226A (zh) * 2020-12-31 2021-04-02 中国矿业大学 一种煤矿井下被保护层膨胀变形量的测定装置

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2018414A (en) * 1934-05-11 1935-10-22 Everett B Hand Core barrel retriever

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2389754A1 (fr) * 1977-05-03 1978-12-01 Diamant Boart Sa

Also Published As

Publication number Publication date
US3610675A (en) 1971-10-05
DE1933481B2 (de) 1970-06-18
SE320942B (fr) 1970-02-23
DE1933481A1 (fr) 1970-06-18
GB1248863A (en) 1971-10-06

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse