GB2379231B - Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped - Google Patents

Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped

Info

Publication number
GB2379231B
GB2379231B GB0226094A GB0226094A GB2379231B GB 2379231 B GB2379231 B GB 2379231B GB 0226094 A GB0226094 A GB 0226094A GB 0226094 A GB0226094 A GB 0226094A GB 2379231 B GB2379231 B GB 2379231B
Authority
GB
United Kingdom
Prior art keywords
tensile stress
drill bits
earth boring
residual tensile
reduced residual
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
GB0226094A
Other versions
GB0226094D0 (en
GB2379231A (en
Inventor
Arthur Chaves
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.)
Baker Hughes Holdings LLC
Original Assignee
Baker Hughes 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
Priority claimed from US09/082,221 external-priority patent/US5971087A/en
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Publication of GB0226094D0 publication Critical patent/GB0226094D0/en
Publication of GB2379231A publication Critical patent/GB2379231A/en
Application granted granted Critical
Publication of GB2379231B publication Critical patent/GB2379231B/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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • 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
    • E21B10/56—Button-type inserts
    • E21B10/567—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • E21B10/573—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts characterised by support details, e.g. the substrate construction or the interface between the substrate and the cutting element
    • E21B10/5735—Interface between the substrate and the cutting element

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
GB0226094A 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped Expired - Fee Related GB2379231B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/082,221 US5971087A (en) 1998-05-20 1998-05-20 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped
GB9910562A GB2337543B (en) 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped

Publications (3)

Publication Number Publication Date
GB0226094D0 GB0226094D0 (en) 2002-12-18
GB2379231A GB2379231A (en) 2003-03-05
GB2379231B true GB2379231B (en) 2003-04-30

Family

ID=26315520

Family Applications (3)

Application Number Title Priority Date Filing Date
GB0226096A Expired - Fee Related GB2379232B (en) 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped
GB0226216A Expired - Fee Related GB2379233B (en) 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped
GB0226094A Expired - Fee Related GB2379231B (en) 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped

Family Applications Before (2)

Application Number Title Priority Date Filing Date
GB0226096A Expired - Fee Related GB2379232B (en) 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped
GB0226216A Expired - Fee Related GB2379233B (en) 1998-05-20 1999-05-10 Reduced residual tensile stress superabrasive cutters for earth boring and drill bits so equipped

Country Status (1)

Country Link
GB (3) GB2379232B (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9412779D0 (en) * 1994-06-24 1994-08-17 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard materials
GB2316698B (en) * 1996-08-26 2000-10-18 Smith International PDC cutter element having improved substrate configuration

Also Published As

Publication number Publication date
GB2379232A (en) 2003-03-05
GB0226094D0 (en) 2002-12-18
GB2379233A (en) 2003-03-05
GB2379232B (en) 2003-04-30
GB2379231A (en) 2003-03-05
GB2379233B (en) 2003-05-21
GB0226216D0 (en) 2002-12-18
GB0226096D0 (en) 2002-12-18

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Legal Events

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

Effective date: 20120510