NO931865L - Core drilling device - Google Patents

Core drilling device

Info

Publication number
NO931865L
NO931865L NO931865A NO931865A NO931865L NO 931865 L NO931865 L NO 931865L NO 931865 A NO931865 A NO 931865A NO 931865 A NO931865 A NO 931865A NO 931865 L NO931865 L NO 931865L
Authority
NO
Norway
Prior art keywords
drilling device
core drilling
core
drilling
Prior art date
Application number
NO931865A
Other languages
Norwegian (no)
Other versions
NO177646C (en
NO931865D0 (en
NO177646B (en
Inventor
Egil Berg
Tor Torgrimsen
Original Assignee
Egil Berg
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 Egil Berg filed Critical Egil Berg
Priority to NO931865A priority Critical patent/NO177646C/en
Publication of NO931865D0 publication Critical patent/NO931865D0/en
Priority to PCT/NO1994/000095 priority patent/WO1994028281A1/en
Priority to GB9524033A priority patent/GB2294716A/en
Priority to CA002163787A priority patent/CA2163787A1/en
Priority to AU68589/94A priority patent/AU6858994A/en
Publication of NO931865L publication Critical patent/NO931865L/en
Publication of NO177646B publication Critical patent/NO177646B/en
Publication of NO177646C publication Critical patent/NO177646C/en

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

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)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Soft Magnetic Materials (AREA)
NO931865A 1993-05-24 1993-05-24 Core drilling device NO177646C (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
NO931865A NO177646C (en) 1993-05-24 1993-05-24 Core drilling device
PCT/NO1994/000095 WO1994028281A1 (en) 1993-05-24 1994-05-19 A device for core drill
GB9524033A GB2294716A (en) 1993-05-24 1994-05-19 A device for core drill
CA002163787A CA2163787A1 (en) 1993-05-24 1994-05-19 A device for core drill
AU68589/94A AU6858994A (en) 1993-05-24 1994-05-19 A device for core drill

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO931865A NO177646C (en) 1993-05-24 1993-05-24 Core drilling device

Publications (4)

Publication Number Publication Date
NO931865D0 NO931865D0 (en) 1993-05-24
NO931865L true NO931865L (en) 1994-11-25
NO177646B NO177646B (en) 1995-07-17
NO177646C NO177646C (en) 1995-11-01

Family

ID=19896114

Family Applications (1)

Application Number Title Priority Date Filing Date
NO931865A NO177646C (en) 1993-05-24 1993-05-24 Core drilling device

Country Status (5)

Country Link
AU (1) AU6858994A (en)
CA (1) CA2163787A1 (en)
GB (1) GB2294716A (en)
NO (1) NO177646C (en)
WO (1) WO1994028281A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6009960A (en) * 1998-01-27 2000-01-04 Diamond Products International, Inc. Coring tool
BE1014459A3 (en) * 2001-11-06 2003-10-07 Halliburton Energy Serv Inc Corer comprises outer tube carrying drill bit at front end and inner tube containing two sleeves through which core sample can slide, locking means preventing sleeves sliding in inner tube
US7055626B2 (en) * 2002-03-15 2006-06-06 Baker Hughes Incorporated Core bit having features for controlling flow split
WO2014018737A1 (en) * 2012-07-26 2014-01-30 National Oilwell Varco L.P. Telescoping core barrel
US9580982B2 (en) * 2014-02-18 2017-02-28 Baker Hughes Incorporated Coring tools with improved reliability during core jams, and related methods
US9540896B2 (en) * 2014-04-01 2017-01-10 National Oilwell Varco, L.P. Frangible core barrel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2032423A (en) * 1935-02-18 1936-03-03 Lewis A Larson Core barrel
US2929612A (en) * 1957-05-20 1960-03-22 Le Bus Royalty Company Telescoping core drill
DE1167286B (en) * 1961-09-01 1964-04-09 Bergwerksverband Gmbh Core drilling tool
FR1474299A (en) * 1966-03-22 1967-03-24 Huber Corp J M Core drill bit

Also Published As

Publication number Publication date
NO177646C (en) 1995-11-01
WO1994028281A1 (en) 1994-12-08
CA2163787A1 (en) 1994-12-08
AU6858994A (en) 1994-12-20
GB2294716A (en) 1996-05-08
NO931865D0 (en) 1993-05-24
GB9524033D0 (en) 1996-02-21
NO177646B (en) 1995-07-17

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Legal Events

Date Code Title Description
MM1K Lapsed by not paying the annual fees

Free format text: LAPSED IN NOVEMBER 2000