GB2353056B - Improvements in or relating to preform cutting elements for rotary drill bits - Google Patents

Improvements in or relating to preform cutting elements for rotary drill bits

Info

Publication number
GB2353056B
GB2353056B GB0026073A GB0026073A GB2353056B GB 2353056 B GB2353056 B GB 2353056B GB 0026073 A GB0026073 A GB 0026073A GB 0026073 A GB0026073 A GB 0026073A GB 2353056 B GB2353056 B GB 2353056B
Authority
GB
United Kingdom
Prior art keywords
relating
cutting elements
drill bits
rotary drill
preform cutting
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
GB0026073A
Other versions
GB0026073D0 (en
GB2353056A (en
Inventor
Malcolm Roy Taylor
Nigel Dennis Griffin
Tom Scott Roberts
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.)
Camco Drilling Group Ltd
Original Assignee
Camco Drilling Group 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 GBGB9621217.0A external-priority patent/GB9621217D0/en
Application filed by Camco Drilling Group Ltd filed Critical Camco Drilling Group Ltd
Publication of GB0026073D0 publication Critical patent/GB0026073D0/en
Publication of GB2353056A publication Critical patent/GB2353056A/en
Application granted granted Critical
Publication of GB2353056B publication Critical patent/GB2353056B/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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
    • E21B10/5671—Button-type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts with chip breaking arrangements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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)
GB0026073A 1996-10-11 1997-10-10 Improvements in or relating to preform cutting elements for rotary drill bits Expired - Lifetime GB2353056B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9621217.0A GB9621217D0 (en) 1996-10-11 1996-10-11 Improvements in or relating to preform cutting elements for rotary drill bits
GB9721407A GB2318140B (en) 1996-10-11 1997-10-10 Improvements in or relating to preform cutting elements for rotary drill bits

Publications (3)

Publication Number Publication Date
GB0026073D0 GB0026073D0 (en) 2000-12-13
GB2353056A GB2353056A (en) 2001-02-14
GB2353056B true GB2353056B (en) 2001-03-28

Family

ID=26310208

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0026073A Expired - Lifetime GB2353056B (en) 1996-10-11 1997-10-10 Improvements in or relating to preform cutting elements for rotary drill bits

Country Status (1)

Country Link
GB (1) GB2353056B (en)

Families Citing this family (4)

* 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
US8739904B2 (en) * 2009-08-07 2014-06-03 Baker Hughes Incorporated Superabrasive cutters with grooves on the cutting face, and drill bits and drilling tools so equipped
US9441422B2 (en) * 2012-08-29 2016-09-13 National Oilwell DHT, L.P. Cutting insert for a rock drill bit
EP3546692B1 (en) 2014-04-16 2021-03-17 National Oilwell DHT, L.P. Downhole drill bit cutting element with chamfered ridge

Also Published As

Publication number Publication date
GB0026073D0 (en) 2000-12-13
GB2353056A (en) 2001-02-14

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Legal Events

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

Expiry date: 20171009