GB2361496B - Improvements in or relating to rotary drill bits - Google Patents

Improvements in or relating to rotary drill bits

Info

Publication number
GB2361496B
GB2361496B GB0116223A GB0116223A GB2361496B GB 2361496 B GB2361496 B GB 2361496B GB 0116223 A GB0116223 A GB 0116223A GB 0116223 A GB0116223 A GB 0116223A GB 2361496 B GB2361496 B GB 2361496B
Authority
GB
United Kingdom
Prior art keywords
relating
drill bits
rotary drill
rotary
bits
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 - Lifetime
Application number
GB0116223A
Other versions
GB0116223D0 (en
GB2361496A (en
Inventor
Malcolm Roy Taylor
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.)
ReedHycalog UK Ltd
Original Assignee
Camco International 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
Priority claimed from GBGB9712342.6A external-priority patent/GB9712342D0/en
Application filed by Camco International UK Ltd filed Critical Camco International UK Ltd
Publication of GB0116223D0 publication Critical patent/GB0116223D0/en
Publication of GB2361496A publication Critical patent/GB2361496A/en
Application granted granted Critical
Publication of GB2361496B publication Critical patent/GB2361496B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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

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)
  • Drilling Tools (AREA)
  • Earth Drilling (AREA)
GB0116223A 1997-06-14 1998-06-08 Improvements in or relating to rotary drill bits Expired - Lifetime GB2361496B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9712342.6A GB9712342D0 (en) 1997-06-14 1997-06-14 Improvements in or relating to rotary drill bits
GB9812114A GB2326659B (en) 1997-06-14 1998-06-08 Improvements in or relating to rotary drill bits

Publications (3)

Publication Number Publication Date
GB0116223D0 GB0116223D0 (en) 2001-08-29
GB2361496A GB2361496A (en) 2001-10-24
GB2361496B true GB2361496B (en) 2002-02-20

Family

ID=26311715

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0116223A Expired - Lifetime GB2361496B (en) 1997-06-14 1998-06-08 Improvements in or relating to rotary drill bits

Country Status (1)

Country Link
GB (1) GB2361496B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8448725B2 (en) 2004-12-10 2013-05-28 Smith International, Inc. Impact resistant PDC drill bit
GB2537260B (en) * 2013-12-26 2018-04-04 Halliburton Energy Services Inc Multilevel force balanced downhole drilling tools including cutting elements in a step profile configuration
GB2536821B (en) 2013-12-26 2018-04-18 Halliburton Energy Services Inc Multilevel force balanced downhole drilling tools including cutting elements in a track-set configuration
CN116517475B (en) * 2023-06-30 2023-10-03 西南石油大学 Novel wear-resistant and anti-collision beak-shaped tooth multi-blade PDC drill bit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244039A (en) * 1991-10-31 1993-09-14 Camco Drilling Group Ltd. Rotary drill bits
GB2292163A (en) * 1994-08-10 1996-02-14 Smith International Drill bit having enhanced cutting structure and stabilizing features
US5531281A (en) * 1993-07-16 1996-07-02 Camco Drilling Group Ltd. Rotary drilling tools
GB2317195A (en) * 1994-08-10 1998-03-18 Smith International A fixed cutter drill bit
GB2323868A (en) * 1997-02-19 1998-10-07 Smith International Drill bit with predictable walk tendency

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5244039A (en) * 1991-10-31 1993-09-14 Camco Drilling Group Ltd. Rotary drill bits
US5531281A (en) * 1993-07-16 1996-07-02 Camco Drilling Group Ltd. Rotary drilling tools
GB2292163A (en) * 1994-08-10 1996-02-14 Smith International Drill bit having enhanced cutting structure and stabilizing features
GB2317195A (en) * 1994-08-10 1998-03-18 Smith International A fixed cutter drill bit
GB2323868A (en) * 1997-02-19 1998-10-07 Smith International Drill bit with predictable walk tendency

Also Published As

Publication number Publication date
GB0116223D0 (en) 2001-08-29
GB2361496A (en) 2001-10-24

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20180607