NO862642L - Borkrone og fremgangsmaate for kjerneboring. - Google Patents

Borkrone og fremgangsmaate for kjerneboring.

Info

Publication number
NO862642L
NO862642L NO862642A NO862642A NO862642L NO 862642 L NO862642 L NO 862642L NO 862642 A NO862642 A NO 862642A NO 862642 A NO862642 A NO 862642A NO 862642 L NO862642 L NO 862642L
Authority
NO
Norway
Prior art keywords
core
crown
circular
bit
drill bit
Prior art date
Application number
NO862642A
Other languages
English (en)
Norwegian (no)
Other versions
NO862642D0 (no
Inventor
John Fuller
Original Assignee
Nl Petroleum Prod
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 Nl Petroleum Prod filed Critical Nl Petroleum Prod
Publication of NO862642D0 publication Critical patent/NO862642D0/no
Publication of NO862642L publication Critical patent/NO862642L/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
    • E21B10/00—Drill bits
    • E21B10/02—Core bits
    • 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
    • E21B10/00—Drill bits
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/605—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a core-bit
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
  • Drilling Tools (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
NO862642A 1985-07-02 1986-07-01 Borkrone og fremgangsmaate for kjerneboring. NO862642L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858516776A GB8516776D0 (en) 1985-07-02 1985-07-02 Rotary drill bits

Publications (2)

Publication Number Publication Date
NO862642D0 NO862642D0 (no) 1986-07-01
NO862642L true NO862642L (no) 1987-01-05

Family

ID=10581696

Family Applications (1)

Application Number Title Priority Date Filing Date
NO862642A NO862642L (no) 1985-07-02 1986-07-01 Borkrone og fremgangsmaate for kjerneboring.

Country Status (5)

Country Link
US (1) US4790396A (fr)
EP (1) EP0212809B1 (fr)
DE (1) DE3677855D1 (fr)
GB (1) GB8516776D0 (fr)
NO (1) NO862642L (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1005201A4 (fr) * 1991-08-28 1993-05-25 Diamant Boart Stratabit S A En Couronne de carottier.
US6412575B1 (en) * 2000-03-09 2002-07-02 Schlumberger Technology Corporation Coring bit and method for obtaining a material core sample
US7431107B2 (en) * 2003-01-22 2008-10-07 Schlumberger Technology Corporation Coring bit with uncoupled sleeve
RU2244091C1 (ru) * 2003-06-05 2005-01-10 Совместное предприятие Закрытое Акционерное Общество "УДОЛ" Долото для отбора керна
US7628231B2 (en) * 2006-09-21 2009-12-08 Baker Hughes Incorporated Protector for rock bit seals
US20100252331A1 (en) * 2009-04-01 2010-10-07 High Angela D Methods for forming boring shoes for wellbore casing, and boring shoes and intermediate structures formed by such methods
US8613330B2 (en) 2011-07-05 2013-12-24 Schlumberger Technology Corporation Coring tools and related methods
US10260295B2 (en) 2017-05-26 2019-04-16 Saudi Arabian Oil Company Mitigating drilling circulation loss
CN108930517B (zh) * 2018-08-13 2024-03-22 四川大学 硬岩取芯钻具

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1484527A (en) * 1921-05-07 1924-02-19 Pace Jefferson Davis Well-drilling bit
US1703390A (en) * 1924-03-04 1929-02-26 Peter J Duffy Drill
US2657016A (en) * 1950-01-20 1953-10-27 Donovan B Grable Fluid circulation head for drill strings
US2713473A (en) * 1953-06-29 1955-07-19 Jack E Talbot Cleanable core barrel
US3095935A (en) * 1958-09-25 1963-07-02 Jersey Prod Res Co Coring bit
US3207240A (en) * 1961-10-31 1965-09-21 Tiefbohr Messdienst Leutert & Apparatus for the drilling of and the protection of drill cores in deep-welldrilling operations
SU574520A1 (ru) * 1975-03-18 1977-09-30 Всесоюзный Научно-Исследовательский Институт Методики И Техники Разведки Колонковый снар д
US4296822A (en) * 1979-11-26 1981-10-27 Omega Tools International Multipurpose fluid flow assisted downhole tool
US4512423A (en) * 1983-09-09 1985-04-23 Christensen, Inc. Coring device with an improved weighted core sleeve and anti-gripping collar

Also Published As

Publication number Publication date
DE3677855D1 (de) 1991-04-11
US4790396A (en) 1988-12-13
NO862642D0 (no) 1986-07-01
EP0212809A2 (fr) 1987-03-04
EP0212809A3 (en) 1988-02-24
EP0212809B1 (fr) 1991-03-06
GB8516776D0 (en) 1985-08-07

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