GB2451100B - Drill bit - Google Patents

Drill bit

Info

Publication number
GB2451100B
GB2451100B GB0713923.1A GB0713923A GB2451100B GB 2451100 B GB2451100 B GB 2451100B GB 0713923 A GB0713923 A GB 0713923A GB 2451100 B GB2451100 B GB 2451100B
Authority
GB
United Kingdom
Prior art keywords
drill bit
drill
bit
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 - Fee Related
Application number
GB0713923.1A
Other versions
GB0713923D0 (en
GB2451100A (en
Inventor
Geoff Downton
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.)
Gemalto Terminals Ltd
Schlumberger Holdings Ltd
Original Assignee
Gemalto Terminals Ltd
Schlumberger Holdings 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 Gemalto Terminals Ltd, Schlumberger Holdings Ltd filed Critical Gemalto Terminals Ltd
Priority to GB0713923.1A priority Critical patent/GB2451100B/en
Publication of GB0713923D0 publication Critical patent/GB0713923D0/en
Priority to RU2008110524/03A priority patent/RU2492307C2/en
Priority to CNU2008201259263U priority patent/CN201221316Y/en
Priority to CN200810137728.3A priority patent/CN101349144B/en
Publication of GB2451100A publication Critical patent/GB2451100A/en
Application granted granted Critical
Publication of GB2451100B publication Critical patent/GB2451100B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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 DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/04—Directional drilling
    • E21B7/06—Deflecting the direction of boreholes
    • E21B7/064—Deflecting the direction of boreholes specially adapted drill bits therefor
GB0713923.1A 2007-07-18 2007-07-18 Drill bit Expired - Fee Related GB2451100B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0713923.1A GB2451100B (en) 2007-07-18 2007-07-18 Drill bit
RU2008110524/03A RU2492307C2 (en) 2007-07-18 2008-03-20 Drill bit
CNU2008201259263U CN201221316Y (en) 2007-07-18 2008-07-18 Drill bit
CN200810137728.3A CN101349144B (en) 2007-07-18 2008-07-18 Drill bit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0713923.1A GB2451100B (en) 2007-07-18 2007-07-18 Drill bit

Publications (3)

Publication Number Publication Date
GB0713923D0 GB0713923D0 (en) 2007-08-29
GB2451100A GB2451100A (en) 2009-01-21
GB2451100B true GB2451100B (en) 2012-02-15

Family

ID=38476483

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0713923.1A Expired - Fee Related GB2451100B (en) 2007-07-18 2007-07-18 Drill bit

Country Status (3)

Country Link
CN (2) CN101349144B (en)
GB (1) GB2451100B (en)
RU (1) RU2492307C2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451100B (en) * 2007-07-18 2012-02-15 Schlumberger Holdings Drill bit
US9926779B2 (en) 2011-11-10 2018-03-27 Schlumberger Technology Corporation Downhole whirl detection while drilling
US10562109B2 (en) * 2017-11-22 2020-02-18 The Boeing Company Tapered drill bit and automated process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006224A1 (en) * 1980-02-20 1981-08-27 Hermann-Dietrich 2300 Kiel Molsner Ram-type test boring system - with leading point comprising concentric disc with diameters decreasing towards end
EP1627985A1 (en) * 2004-08-18 2006-02-22 ReedHycalog UK Limited Rotary drill bit
US20070062736A1 (en) * 2005-09-21 2007-03-22 Smith International, Inc. Hybrid disc bit with optimized PDC cutter placement

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1430493A1 (en) * 1986-07-14 1988-10-15 Среднеазиатский Научно-Исследовательский Институт Геологии И Минерального Сырья Rotary bit drill
US5147000A (en) * 1990-06-19 1992-09-15 Norvic S.A. Disc drill bit
CN2076152U (en) * 1990-10-23 1991-05-01 四川石油管理局钻采工艺研究所 Pilot bit
CN2718211Y (en) * 2004-04-16 2005-08-17 辽河石油勘探局 Reconditioning casing probe milling awl
GB2451100B (en) * 2007-07-18 2012-02-15 Schlumberger Holdings Drill bit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3006224A1 (en) * 1980-02-20 1981-08-27 Hermann-Dietrich 2300 Kiel Molsner Ram-type test boring system - with leading point comprising concentric disc with diameters decreasing towards end
EP1627985A1 (en) * 2004-08-18 2006-02-22 ReedHycalog UK Limited Rotary drill bit
US20070062736A1 (en) * 2005-09-21 2007-03-22 Smith International, Inc. Hybrid disc bit with optimized PDC cutter placement

Also Published As

Publication number Publication date
CN201221316Y (en) 2009-04-15
CN101349144A (en) 2009-01-21
GB0713923D0 (en) 2007-08-29
GB2451100A (en) 2009-01-21
CN101349144B (en) 2014-01-01
RU2008110524A (en) 2009-09-27
RU2492307C2 (en) 2013-09-10

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20170718