GB1248863A - A releasing device for a locking mechanism in wire line core drills - Google Patents

A releasing device for a locking mechanism in wire line core drills

Info

Publication number
GB1248863A
GB1248863A GB33365/69A GB3336569A GB1248863A GB 1248863 A GB1248863 A GB 1248863A GB 33365/69 A GB33365/69 A GB 33365/69A GB 3336569 A GB3336569 A GB 3336569A GB 1248863 A GB1248863 A GB 1248863A
Authority
GB
United Kingdom
Prior art keywords
core tube
sleeve
latch
head
support
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
GB33365/69A
Other languages
English (en)
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 GB1248863A publication Critical patent/GB1248863A/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
    • 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)
GB33365/69A 1968-07-02 1969-07-02 A releasing device for a locking mechanism in wire line core drills Expired GB1248863A (en)

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
GB1248863A true GB1248863A (en) 1971-10-06

Family

ID=20275860

Family Applications (1)

Application Number Title Priority Date Filing Date
GB33365/69A Expired GB1248863A (en) 1968-07-02 1969-07-02 A releasing device for a locking mechanism in wire line core drills

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
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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2817194C2 (de) * 1977-05-03 1984-05-03 Diamant Boart S.A., Bruxelles Kernbohrgerät
SE517190C2 (sv) * 1999-08-24 2002-05-07 Atlas Copco Rocktech Ab Spärranordning för en linkärnborr, linkärnborranordning samt förfarande vid linkärnborrning
RU2635702C2 (ru) * 2013-03-01 2017-11-15 Сандвик Интеллекчуал Проперти Аб Инструмент по типу овершота, имеющий средство управления фиксатора
CN106499341A (zh) * 2015-09-04 2017-03-15 钟建华 便携式防滑摆取芯钻头

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
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

Also Published As

Publication number Publication date
FR2014486A1 (fr) 1970-04-17
DE1933481B2 (de) 1970-06-18
SE320942B (fr) 1970-02-23
US3610675A (en) 1971-10-05
DE1933481A1 (fr) 1970-06-18

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