DE68925439D1 - Drill bits with composite cutting elements - Google Patents

Drill bits with composite cutting elements

Info

Publication number
DE68925439D1
DE68925439D1 DE68925439T DE68925439T DE68925439D1 DE 68925439 D1 DE68925439 D1 DE 68925439D1 DE 68925439 T DE68925439 T DE 68925439T DE 68925439 T DE68925439 T DE 68925439T DE 68925439 D1 DE68925439 D1 DE 68925439D1
Authority
DE
Germany
Prior art keywords
cutting elements
drill bits
composite cutting
composite
drill
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
DE68925439T
Other languages
German (de)
Other versions
DE68925439T2 (en
Inventor
Rainer Dr Juergens
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
Application filed by Baker Hughes Inc filed Critical Baker Hughes Inc
Application granted granted Critical
Publication of DE68925439D1 publication Critical patent/DE68925439D1/en
Publication of DE68925439T2 publication Critical patent/DE68925439T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21B10/5676—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
DE1989625439 1988-07-06 1989-07-06 Drill bits with composite cutting elements Expired - Fee Related DE68925439T2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US21549988A 1988-07-06 1988-07-06

Publications (2)

Publication Number Publication Date
DE68925439D1 true DE68925439D1 (en) 1996-02-29
DE68925439T2 DE68925439T2 (en) 1996-08-22

Family

ID=22803218

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1989625439 Expired - Fee Related DE68925439T2 (en) 1988-07-06 1989-07-06 Drill bits with composite cutting elements

Country Status (3)

Country Link
EP (1) EP0350045B1 (en)
CA (1) CA1311745C (en)
DE (1) DE68925439T2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5238074A (en) * 1992-01-06 1993-08-24 Baker Hughes Incorporated Mosaic diamond drag bit cutter having a nonuniform wear pattern
ZA935525B (en) * 1992-08-06 1994-02-24 De Beers Ind Diamond Tool insert
GB9827600D0 (en) * 1998-12-15 1999-02-10 De Beers Ind Diamond Abrasive product
US6248447B1 (en) * 1999-09-03 2001-06-19 Camco International (Uk) Limited Cutting elements and methods of manufacture thereof
US8991525B2 (en) * 2012-05-01 2015-03-31 Baker Hughes Incorporated Earth-boring tools having cutting elements with cutting faces exhibiting multiple coefficients of friction, and related methods

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3111156C1 (en) * 1981-03-21 1983-04-14 Christensen, Inc., 84115 Salt Lake City, Utah Cutting element for rotary drill bits for deep drilling in earth formations
AU3946885A (en) * 1984-03-26 1985-10-03 Norton Christensen Inc. Cutting element using polycrystalline diamond disks
GB8612012D0 (en) * 1986-05-16 1986-06-25 Nl Petroleum Prod Rotary drill bits

Also Published As

Publication number Publication date
CA1311745C (en) 1992-12-22
DE68925439T2 (en) 1996-08-22
EP0350045A2 (en) 1990-01-10
EP0350045A3 (en) 1990-06-06
EP0350045B1 (en) 1996-01-17

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee