GB9910223D0 - Improvements in elements faced with superhard material - Google Patents

Improvements in elements faced with superhard material

Info

Publication number
GB9910223D0
GB9910223D0 GBGB9910223.8A GB9910223A GB9910223D0 GB 9910223 D0 GB9910223 D0 GB 9910223D0 GB 9910223 A GB9910223 A GB 9910223A GB 9910223 D0 GB9910223 D0 GB 9910223D0
Authority
GB
United Kingdom
Prior art keywords
superhard material
elements faced
faced
elements
superhard
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.)
Withdrawn
Application number
GBGB9910223.8A
Other versions
GB2337063A (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.)
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
Application filed by Camco International UK Ltd filed Critical Camco International UK Ltd
Publication of GB9910223D0 publication Critical patent/GB9910223D0/en
Publication of GB2337063A publication Critical patent/GB2337063A/en
Withdrawn legal-status Critical Current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
    • E21B10/5676—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts having a cutting face with different segments, e.g. mosaic-type 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)
  • Drilling Tools (AREA)
  • Powder Metallurgy (AREA)
GB9910223A 1998-05-08 1999-05-05 Preform cutting element Withdrawn GB2337063A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9809690.2A GB9809690D0 (en) 1998-05-08 1998-05-08 Improvements in elements faced with superhard material

Publications (2)

Publication Number Publication Date
GB9910223D0 true GB9910223D0 (en) 1999-06-30
GB2337063A GB2337063A (en) 1999-11-10

Family

ID=10831554

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9809690.2A Ceased GB9809690D0 (en) 1998-05-08 1998-05-08 Improvements in elements faced with superhard material
GB9910223A Withdrawn GB2337063A (en) 1998-05-08 1999-05-05 Preform cutting element

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9809690.2A Ceased GB9809690D0 (en) 1998-05-08 1998-05-08 Improvements in elements faced with superhard material

Country Status (3)

Country Link
EP (1) EP0955446B1 (en)
DE (1) DE69918891T2 (en)
GB (2) GB9809690D0 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9911139D0 (en) * 1999-05-14 1999-07-14 Camco Int Uk Ltd Preform cutting elemenys for rotary drill bits
US6604588B2 (en) * 2001-09-28 2003-08-12 Smith International, Inc. Gage trimmers and bit incorporating the same
US7757793B2 (en) 2005-11-01 2010-07-20 Smith International, Inc. Thermally stable polycrystalline ultra-hard constructions
US9217296B2 (en) 2008-01-09 2015-12-22 Smith International, Inc. Polycrystalline ultra-hard constructions with multiple support members
US7909121B2 (en) 2008-01-09 2011-03-22 Smith International, Inc. Polycrystalline ultra-hard compact constructions
GB2479844B (en) 2009-01-29 2013-06-19 Smith International Brazing methods for PDC cutters

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4784023A (en) 1985-12-05 1988-11-15 Diamant Boart-Stratabit (Usa) Inc. Cutting element having composite formed of cemented carbide substrate and diamond layer and method of making same
US4811801A (en) * 1988-03-16 1989-03-14 Smith International, Inc. Rock bits and inserts therefor
US5120327A (en) 1991-03-05 1992-06-09 Diamant-Boart Stratabit (Usa) Inc. Cutting composite formed of cemented carbide substrate and diamond layer
GB2283772B (en) 1993-11-10 1997-01-15 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB2308143B (en) 1993-11-10 1998-02-25 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
US5435403A (en) * 1993-12-09 1995-07-25 Baker Hughes Incorporated Cutting elements with enhanced stiffness and arrangements thereof on earth boring drill bits
ZA954736B (en) * 1994-06-16 1996-01-26 De Beers Ind Diamond Tool component
GB9412247D0 (en) 1994-06-18 1994-08-10 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB9506079D0 (en) 1995-03-24 1995-05-10 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB9508226D0 (en) 1995-04-22 1995-06-07 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
US5888619A (en) 1995-09-23 1999-03-30 Camco Drilling Group Ltd. Elements faced with superhard material
US5706906A (en) * 1996-02-15 1998-01-13 Baker Hughes Incorporated Superabrasive cutting element with enhanced durability and increased wear life, and apparatus so equipped
GB9701695D0 (en) * 1997-01-28 1997-03-19 De Beers Ind Diamond Insert for an abrasive tool
US5887580A (en) * 1998-03-25 1999-03-30 Smith International, Inc. Cutting element with interlocking feature

Also Published As

Publication number Publication date
EP0955446A3 (en) 2000-08-16
DE69918891D1 (en) 2004-09-02
GB2337063A (en) 1999-11-10
DE69918891T2 (en) 2005-08-04
EP0955446A2 (en) 1999-11-10
GB9809690D0 (en) 1998-07-01
EP0955446B1 (en) 2004-07-28

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)