DE3569956D1 - Rotary drill bit with cutting elements having a thin abrasive front layer - Google Patents

Rotary drill bit with cutting elements having a thin abrasive front layer

Info

Publication number
DE3569956D1
DE3569956D1 DE8585200184T DE3569956T DE3569956D1 DE 3569956 D1 DE3569956 D1 DE 3569956D1 DE 8585200184 T DE8585200184 T DE 8585200184T DE 3569956 T DE3569956 T DE 3569956T DE 3569956 D1 DE3569956 D1 DE 3569956D1
Authority
DE
Germany
Prior art keywords
drill bit
cutting elements
rotary drill
front layer
thin abrasive
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
Application number
DE8585200184T
Other languages
English (en)
Inventor
Djurre Hans Zijsling
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Application granted granted Critical
Publication of DE3569956D1 publication Critical patent/DE3569956D1/de
Expired 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • E21B10/55—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits with preformed cutting elements
    • 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
DE8585200184T 1984-02-29 1985-02-12 Rotary drill bit with cutting elements having a thin abrasive front layer Expired DE3569956D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB848405267A GB8405267D0 (en) 1984-02-29 1984-02-29 Rotary drill bit

Publications (1)

Publication Number Publication Date
DE3569956D1 true DE3569956D1 (en) 1989-06-08

Family

ID=10557348

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585200184T Expired DE3569956D1 (en) 1984-02-29 1985-02-12 Rotary drill bit with cutting elements having a thin abrasive front layer

Country Status (6)

Country Link
US (1) US4607711A (de)
EP (1) EP0155026B1 (de)
CA (1) CA1244820A (de)
DE (1) DE3569956D1 (de)
GB (1) GB8405267D0 (de)
NO (1) NO172602C (de)

Families Citing this family (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5373900A (en) 1988-04-15 1994-12-20 Baker Hughes Incorporated Downhole milling tool
US4682663A (en) * 1986-02-18 1987-07-28 Reed Tool Company Mounting means for cutting elements in drag type rotary drill bit
US4907662A (en) * 1986-02-18 1990-03-13 Reed Tool Company Rotary drill bit having improved mounting means for multiple cutting elements
US4830123A (en) * 1986-02-18 1989-05-16 Reed Tool Company Mounting means for cutting elements in drag type rotary drill bit
GB2188354B (en) * 1986-03-27 1989-11-22 Shell Int Research Rotary drill bit
GB8607701D0 (en) * 1986-03-27 1986-04-30 Shell Int Research Rotary drill bit
EP0295045A3 (de) * 1987-06-09 1989-10-25 Reed Tool Company Drehfräsmeissel mit Reinigungsdüsen
GB2240797B (en) * 1990-02-09 1994-03-09 Reed Tool Co Improvements in cutting elements for rotary drill bits
US5007493A (en) * 1990-02-23 1991-04-16 Dresser Industries, Inc. Drill bit having improved cutting element retention system
US5025875A (en) * 1990-05-07 1991-06-25 Ingersoll-Rand Company Rock bit for a down-the-hole drill
US5282513A (en) * 1992-02-04 1994-02-01 Smith International, Inc. Thermally stable polycrystalline diamond drill bit
US5437343A (en) * 1992-06-05 1995-08-01 Baker Hughes Incorporated Diamond cutters having modified cutting edge geometry and drill bit mounting arrangement therefor
US5373908A (en) * 1993-03-10 1994-12-20 Baker Hughes Incorporated Chamfered cutting structure for downhole drilling
US5460233A (en) * 1993-03-30 1995-10-24 Baker Hughes Incorporated Diamond cutting structure for drilling hard subterranean formations
NO179954C (no) * 1994-06-07 1997-01-15 Lyng Drilling Products As Anordning ved borekrone
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
US5881830A (en) * 1997-02-14 1999-03-16 Baker Hughes Incorporated Superabrasive drill bit cutting element with buttress-supported planar chamfer
US7000715B2 (en) 1997-09-08 2006-02-21 Baker Hughes Incorporated Rotary drill bits exhibiting cutting element placement for optimizing bit torque and cutter life
US6230828B1 (en) 1997-09-08 2001-05-15 Baker Hughes Incorporated Rotary drilling bits for directional drilling exhibiting variable weight-on-bit dependent cutting characteristics
US5960896A (en) * 1997-09-08 1999-10-05 Baker Hughes Incorporated Rotary drill bits employing optimal cutter placement based on chamfer geometry
US6672406B2 (en) 1997-09-08 2004-01-06 Baker Hughes Incorporated Multi-aggressiveness cuttting face on PDC cutters and method of drilling subterranean formations
ATE312680T1 (de) * 2000-06-13 2005-12-15 Element Six Pty Ltd Verbunddiamantkörper
US6935444B2 (en) * 2003-02-24 2005-08-30 Baker Hughes Incorporated Superabrasive cutting elements with cutting edge geometry having enhanced durability, method of producing same, and drill bits so equipped
US8727045B1 (en) 2011-02-23 2014-05-20 Us Synthetic Corporation Polycrystalline diamond compacts, methods of making same, and applications therefor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3745623A (en) * 1971-12-27 1973-07-17 Gen Electric Diamond tools for machining
SU483863A1 (ru) * 1973-01-03 1980-06-15 Всесоюзный Научно-Исследоваельский И Проектный Институт Тугоплавких Металлов И Твердых Сплавов Способ изготовлени алмазного бурового инструмента
GB2084219A (en) * 1980-09-25 1982-04-07 Nl Industries Inc Mounting of cutters on cutting tools
US4396077A (en) * 1981-09-21 1983-08-02 Strata Bit Corporation Drill bit with carbide coated cutting face
CA1216158A (en) * 1981-11-09 1987-01-06 Akio Hara Composite compact component and a process for the production of the same

Also Published As

Publication number Publication date
NO850779L (no) 1985-08-30
EP0155026A3 (en) 1986-05-21
GB8405267D0 (en) 1984-04-04
EP0155026B1 (de) 1989-05-03
EP0155026A2 (de) 1985-09-18
NO172602C (no) 1993-08-11
CA1244820A (en) 1988-11-15
NO172602B (no) 1993-05-03
US4607711A (en) 1986-08-26

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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