NO820347L - Verktoey for undergrunnsformasjoner - Google Patents

Verktoey for undergrunnsformasjoner

Info

Publication number
NO820347L
NO820347L NO820347A NO820347A NO820347L NO 820347 L NO820347 L NO 820347L NO 820347 A NO820347 A NO 820347A NO 820347 A NO820347 A NO 820347A NO 820347 L NO820347 L NO 820347L
Authority
NO
Norway
Prior art keywords
tool
hole
base
accordance
cutting
Prior art date
Application number
NO820347A
Other languages
English (en)
Norwegian (no)
Inventor
John Michael Fuller
Original Assignee
Drilling & Service Uk Ltd
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 Drilling & Service Uk Ltd filed Critical Drilling & Service Uk Ltd
Publication of NO820347L publication Critical patent/NO820347L/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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
    • 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
    • E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
    • E21B10/265—Bi-center drill bits, i.e. an integral bit and eccentric reamer used to simultaneously drill and underream the hole
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1092—Gauge section of drill bits

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
NO820347A 1981-02-07 1982-02-05 Verktoey for undergrunnsformasjoner NO820347L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8103820 1981-02-07
GB8104537 1981-02-13

Publications (1)

Publication Number Publication Date
NO820347L true NO820347L (no) 1982-08-09

Family

ID=26278364

Family Applications (1)

Application Number Title Priority Date Filing Date
NO820347A NO820347L (no) 1981-02-07 1982-02-05 Verktoey for undergrunnsformasjoner

Country Status (2)

Country Link
EP (1) EP0058061A3 (fr)
NO (1) NO820347L (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3414206C1 (de) * 1984-04-14 1985-02-21 Norton Christensen, Inc., Salt Lake City, Utah Drehbohrmeissel fuer Tiefbohrungen
US4717290A (en) * 1986-12-17 1988-01-05 Homco International, Inc. Milling tool
FR2678678A1 (fr) * 1991-07-04 1993-01-08 Smf Int Dispositif de reglage de l'azimut de la trajectoire d'un outil de forage en mode rotary.
GB9422022D0 (en) * 1994-10-31 1994-12-21 Red Baron Oil Tools Rental Two stage underreamer
US5992548A (en) * 1995-08-15 1999-11-30 Diamond Products International, Inc. Bi-center bit with oppositely disposed cutting surfaces
US5904213A (en) * 1995-10-10 1999-05-18 Camco International (Uk) Limited Rotary drill bits
US5765653A (en) * 1996-10-09 1998-06-16 Baker Hughes Incorporated Reaming apparatus and method with enhanced stability and transition from pilot hole to enlarged bore diameter
EP1039095B1 (fr) * 1999-03-19 2005-05-18 Diamond Products International, Inc. Trépan de forage
US6269893B1 (en) * 1999-06-30 2001-08-07 Smith International, Inc. Bi-centered drill bit having improved drilling stability mud hydraulics and resistance to cutter damage
US6386302B1 (en) 1999-09-09 2002-05-14 Smith International, Inc. Polycrystaline diamond compact insert reaming tool
US6394200B1 (en) 1999-10-28 2002-05-28 Camco International (U.K.) Limited Drillout bi-center bit
US6622803B2 (en) 2000-03-22 2003-09-23 Rotary Drilling Technology, Llc Stabilizer for use in a drill string
US6926099B2 (en) 2003-03-26 2005-08-09 Varel International, L.P. Drill out bi-center bit and method for using same
GB0820063D0 (en) 2008-11-03 2008-12-10 Reedhycalog Uk Ltd Drilling tool
CN106285512B (zh) * 2016-10-10 2018-10-30 贵州高峰石油机械股份有限公司 一种偏心扶正器及其使用方法
CN114151017A (zh) * 2021-11-23 2022-03-08 中海石油(中国)有限公司 仿生偏心聚晶金刚石复合片

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE513754A (fr) *
DE115257C (fr) *
US2074951A (en) * 1935-12-14 1937-03-23 John A Zublin Bit for drilling a hole larger than the bit
FR1307849A (fr) * 1961-12-12 1962-10-26 Atlantic Refining Co Procédé et appareil pour forer des trous de sonde
US3237705A (en) * 1963-11-13 1966-03-01 Williams Joseph W Reamer for enlarging and straightening bore holes
US3851719A (en) * 1973-03-22 1974-12-03 American Coldset Corp Stabilized under-drilling apparatus
US3871488A (en) * 1974-02-13 1975-03-18 Daniel R Sabre Rock drilling
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations

Also Published As

Publication number Publication date
EP0058061A3 (fr) 1982-09-01
EP0058061A2 (fr) 1982-08-18

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