GB2438717B - Drill bit - Google Patents

Drill bit

Info

Publication number
GB2438717B
GB2438717B GB0709913A GB0709913A GB2438717B GB 2438717 B GB2438717 B GB 2438717B GB 0709913 A GB0709913 A GB 0709913A GB 0709913 A GB0709913 A GB 0709913A GB 2438717 B GB2438717 B GB 2438717B
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
GB0709913A
Other versions
GB2438717A (en
GB0709913D0 (en
Inventor
Peter T Cariveau
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 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
    • E21B10/46—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

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)
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 GB0709913D0 (en) 2007-07-04
GB2438717A GB2438717A (en) 2007-12-05
GB2438717B true 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)

Citations (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
GB2323868A (en) * 1997-02-19 1998-10-07 Smith International Drill bit with predictable walk tendency
GB2352748A (en) * 1999-08-05 2001-02-07 Smith International Side-cutting drill bit
GB2357534A (en) * 1999-12-22 2001-06-27 Smith International Drill Bit With A Predictable Tendency To Reduce Its Angle of Inclination
GB2365893A (en) * 2000-08-11 2002-02-27 Baker Hughes Inc Rotary drill bit with gauge elements of differing aggressiveness
GB2432860A (en) * 2005-11-30 2007-06-06 Smith International Drag bit having active and passive gauge pad structures

Patent Citations (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
GB2323868A (en) * 1997-02-19 1998-10-07 Smith International Drill bit with predictable walk tendency
GB2352748A (en) * 1999-08-05 2001-02-07 Smith International Side-cutting drill bit
GB2357534A (en) * 1999-12-22 2001-06-27 Smith International Drill Bit With A Predictable Tendency To Reduce Its Angle of Inclination
GB2365893A (en) * 2000-08-11 2002-02-27 Baker Hughes Inc Rotary drill bit with gauge elements of differing aggressiveness
GB2432860A (en) * 2005-11-30 2007-06-06 Smith International Drag bit having active and passive gauge pad structures

Also Published As

Publication number Publication date
GB2438717A (en) 2007-12-05
GB0709913D0 (en) 2007-07-04

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Legal Events

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

Effective date: 20130523