GB0709913D0 - Drill bit - Google Patents

Drill bit

Info

Publication number
GB0709913D0
GB0709913D0 GBGB0709913.8A GB0709913A GB0709913D0 GB 0709913 D0 GB0709913 D0 GB 0709913D0 GB 0709913 A GB0709913 A GB 0709913A GB 0709913 D0 GB0709913 D0 GB 0709913D0
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.)
Granted
Application number
GBGB0709913.8A
Other versions
GB2438717B (en
GB2438717A (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.)
Smith International Inc
Original Assignee
Smith International Inc
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 Smith International Inc filed Critical Smith International Inc
Publication of GB0709913D0 publication Critical patent/GB0709913D0/en
Publication of GB2438717A publication Critical patent/GB2438717A/en
Application granted granted Critical
Publication of GB2438717B publication Critical patent/GB2438717B/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
    • 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
    • E21B10/00—Drill bits
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
GB0709913A 2006-05-30 2007-05-23 Drill bit Expired - Fee Related GB2438717B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11443406A 2006-05-30 2006-05-30

Publications (3)

Publication Number Publication Date
GB0709913D0 true GB0709913D0 (en) 2007-07-04
GB2438717A GB2438717A (en) 2007-12-05
GB2438717B GB2438717B (en) 2008-12-31

Family

ID=38265238

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0709913A Expired - Fee Related GB2438717B (en) 2006-05-30 2007-05-23 Drill bit

Country Status (1)

Country Link
GB (1) GB2438717B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5186268A (en) * 1991-10-31 1993-02-16 Camco Drilling Group Ltd. Rotary drill bits
US5937958A (en) * 1997-02-19 1999-08-17 Smith International, Inc. Drill bits with predictable walk tendencies
US6253863B1 (en) * 1999-08-05 2001-07-03 Smith International, Inc. Side cutting gage pad improving stabilization and borehole integrity
US6308790B1 (en) * 1999-12-22 2001-10-30 Smith International, Inc. Drag bits with predictable inclination tendencies and behavior
US6349780B1 (en) * 2000-08-11 2002-02-26 Baker Hughes Incorporated Drill bit with selectively-aggressive gage pads
US20070205024A1 (en) * 2005-11-30 2007-09-06 Graham Mensa-Wilmot Steerable fixed cutter drill bit

Also Published As

Publication number Publication date
GB2438717B (en) 2008-12-31
GB2438717A (en) 2007-12-05

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Legal Events

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

Effective date: 20130523