GB2240797B - Improvements in cutting elements for rotary drill bits - Google Patents

Improvements in cutting elements for rotary drill bits

Info

Publication number
GB2240797B
GB2240797B GB9002963A GB9002963A GB2240797B GB 2240797 B GB2240797 B GB 2240797B GB 9002963 A GB9002963 A GB 9002963A GB 9002963 A GB9002963 A GB 9002963A GB 2240797 B GB2240797 B GB 2240797B
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
improvements
cutting elements
drill bits
rotary drill
rotary
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
GB9002963A
Other versions
GB2240797A (en )
GB9002963D0 (en )
Inventor
Malcolm Roy Taylor
Jr Thomas Alexander Newton
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
Grant date

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56Button type inserts
    • E21B10/567Button type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
GB9002963A 1990-02-09 1990-02-09 Improvements in cutting elements for rotary drill bits Expired - Fee Related GB2240797B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9002963A GB2240797B (en) 1990-02-09 1990-02-09 Improvements in cutting elements for rotary drill bits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9002963A GB2240797B (en) 1990-02-09 1990-02-09 Improvements in cutting elements for rotary drill bits

Publications (3)

Publication Number Publication Date
GB9002963D0 true GB9002963D0 (en) 1990-04-04
GB2240797A true GB2240797A (en) 1991-08-14
GB2240797B true GB2240797B (en) 1994-03-09

Family

ID=10670726

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9002963A Expired - Fee Related GB2240797B (en) 1990-02-09 1990-02-09 Improvements in cutting elements for rotary drill bits

Country Status (1)

Country Link
GB (1) GB2240797B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5460233A (en) * 1993-03-30 1995-10-24 Baker Hughes Incorporated Diamond cutting structure for drilling hard subterranean formations
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
US5924501A (en) * 1996-02-15 1999-07-20 Baker Hughes Incorporated Predominantly diamond cutting structures for earth boring
US5758733A (en) * 1996-04-17 1998-06-02 Baker Hughes Incorporated Earth-boring bit with super-hard cutting elements
US6068071A (en) * 1996-05-24 2000-05-30 U.S. Synthetic Corporation Cutter with polycrystalline diamond layer and conic section profile
US5871060A (en) * 1997-02-20 1999-02-16 Jensen; Kenneth M. Attachment geometry for non-planar drill inserts
US5979579A (en) * 1997-07-11 1999-11-09 U.S. Synthetic Corporation Polycrystalline diamond cutter with enhanced durability
WO2012149086A3 (en) * 2011-04-26 2013-04-25 Smith International, Inc. Polycrystalline diamond compact cutters with conic shaped end
WO2012149120A3 (en) 2011-04-26 2013-03-14 Smith International, Inc. Methods of attaching rolling cutters in fixed cutter bits using sleeve, compression spring, and/or pin(s)/ball(s)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155026A2 (en) * 1984-02-29 1985-09-18 Shell Internationale Research Maatschappij B.V. Rotary drill bit with cutting elements having a thin abrasive front layer
GB2161849A (en) * 1984-07-19 1986-01-22 Nl Petroleum Prod Improvements in or relating to rotary drill bits
GB2188354A (en) * 1986-03-27 1987-09-30 Shell Int Research Rotary drill bit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0155026A2 (en) * 1984-02-29 1985-09-18 Shell Internationale Research Maatschappij B.V. Rotary drill bit with cutting elements having a thin abrasive front layer
GB2161849A (en) * 1984-07-19 1986-01-22 Nl Petroleum Prod Improvements in or relating to rotary drill bits
GB2188354A (en) * 1986-03-27 1987-09-30 Shell Int Research Rotary drill bit

Also Published As

Publication number Publication date Type
GB2240797A (en) 1991-08-14 application
GB9002963D0 (en) 1990-04-04 application

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Legal Events

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

Effective date: 19960209