GB0126519D0 - Drill bit - Google Patents

Drill bit

Info

Publication number
GB0126519D0
GB0126519D0 GBGB0126519.8A GB0126519A GB0126519D0 GB 0126519 D0 GB0126519 D0 GB 0126519D0 GB 0126519 A GB0126519 A GB 0126519A GB 0126519 D0 GB0126519 D0 GB 0126519D0
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
GBGB0126519.8A
Other versions
GB2365902A (en
GB2365902B (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
Priority claimed from GB9817054A external-priority patent/GB2327962B/en
Publication of GB0126519D0 publication Critical patent/GB0126519D0/en
Publication of GB2365902A publication Critical patent/GB2365902A/en
Application granted granted Critical
Publication of GB2365902B publication Critical patent/GB2365902B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B10/08—Roller bits
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement

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)
GB0126519A 1997-08-05 1998-08-05 Drill bit with ridge-cutting cutter element(s) Expired - Fee Related GB2365902B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US5484497P 1997-08-05 1997-08-05
GB9817054A GB2327962B (en) 1997-08-05 1998-08-05 Drill bit with ridge-cutting cutter element

Publications (3)

Publication Number Publication Date
GB0126519D0 true GB0126519D0 (en) 2002-01-02
GB2365902A GB2365902A (en) 2002-02-27
GB2365902B GB2365902B (en) 2002-04-17

Family

ID=26314167

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0126519A Expired - Fee Related GB2365902B (en) 1997-08-05 1998-08-05 Drill bit with ridge-cutting cutter element(s)
GB0126520A Expired - Fee Related GB2365903B (en) 1997-08-05 1998-08-05 Downhole assembly incorporating drill bit with ridge-cutting cutter element(s)
GB0126517A Expired - Fee Related GB2365901B (en) 1997-08-05 1998-08-05 Drill bit with ridge-cutting cutter element(s)

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB0126520A Expired - Fee Related GB2365903B (en) 1997-08-05 1998-08-05 Downhole assembly incorporating drill bit with ridge-cutting cutter element(s)
GB0126517A Expired - Fee Related GB2365901B (en) 1997-08-05 1998-08-05 Drill bit with ridge-cutting cutter element(s)

Country Status (1)

Country Link
GB (3) GB2365902B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7086488B2 (en) * 2002-11-04 2006-08-08 Smith International, Inc. Cutting element having enhanced cutting geometry

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1193717A (en) * 1967-09-08 1970-06-03 Inst Burovoi Tekhnik Improvements in or relating to Roller Cutter Boring Bits
US4436168A (en) * 1982-01-12 1984-03-13 Dismukes Newton B Thrust generator for boring tools

Also Published As

Publication number Publication date
GB2365901B (en) 2002-04-17
GB2365902A (en) 2002-02-27
GB2365903A (en) 2002-02-27
GB0126517D0 (en) 2002-01-02
GB2365903B (en) 2002-04-17
GB2365902B (en) 2002-04-17
GB0126520D0 (en) 2002-01-02
GB2365901A (en) 2002-02-27

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Legal Events

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

Effective date: 20150805