EP0291314A3 - Cutting structure and rotary drill bit comprising such a structure - Google Patents

Cutting structure and rotary drill bit comprising such a structure Download PDF

Info

Publication number
EP0291314A3
EP0291314A3 EP88304325A EP88304325A EP0291314A3 EP 0291314 A3 EP0291314 A3 EP 0291314A3 EP 88304325 A EP88304325 A EP 88304325A EP 88304325 A EP88304325 A EP 88304325A EP 0291314 A3 EP0291314 A3 EP 0291314A3
Authority
EP
European Patent Office
Prior art keywords
drill bit
stud
rotary drill
cutting
cutting structure
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Withdrawn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
EP88304325A
Other languages
German (de)
French (fr)
Other versions
EP0291314A2 (en
Inventor
John Denzil Barr
Malcolm Roy Taylor
Terry Richard Matthias
Michael Thomas Wardley
Michael Colin Regan
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
Reed Tool Co 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 Reed Tool Co Ltd filed Critical Reed Tool Co Ltd
Publication of EP0291314A2 publication Critical patent/EP0291314A2/en
Publication of EP0291314A3 publication Critical patent/EP0291314A3/en
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools

Abstract

A cutting structure, for use in a rotary drill bit for drilling or coring holes in subsurface formations, comprises an elongate stud 17 of hard material, such as cemented tungsten carbide, there being at least partly embedded in the stud, at one end thereof, one or more thermally stable polycrystalline diamond cutting elements 14, 15, 16. The diamond elements, which may be in the form of small rectangular blocks or cylinders, are bonded into the stud by a hot pressing or an infiltration process.
EP88304325A 1987-05-13 1988-05-12 Cutting structure and rotary drill bit comprising such a structure Withdrawn EP0291314A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB878711255A GB8711255D0 (en) 1987-05-13 1987-05-13 Rotary drill bits
GB8711255 1987-05-13

Publications (2)

Publication Number Publication Date
EP0291314A2 EP0291314A2 (en) 1988-11-17
EP0291314A3 true EP0291314A3 (en) 1989-09-20

Family

ID=10617240

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88304325A Withdrawn EP0291314A3 (en) 1987-05-13 1988-05-12 Cutting structure and rotary drill bit comprising such a structure

Country Status (2)

Country Link
EP (1) EP0291314A3 (en)
GB (2) GB8711255D0 (en)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4981184A (en) * 1988-11-21 1991-01-01 Smith International, Inc. Diamond drag bit for soft formations
US5314033A (en) * 1992-02-18 1994-05-24 Baker Hughes Incorporated Drill bit having combined positive and negative or neutral rake cutters
GB2273946B (en) * 1992-12-31 1996-10-09 Camco Drilling Group Ltd Improvements in or relating to rotary drill bits
GB2274474B (en) * 1993-01-21 1996-07-31 Camco Drilling Group Ltd Improvements in or relating to cutter assemblies for rotary drill bits
FR2735522B1 (en) * 1995-06-16 1997-09-05 Total Sa MONOBLOCK DRILLING TOOL SIZE
US5667028A (en) * 1995-08-22 1997-09-16 Smith International, Inc. Multiple diamond layer polycrystalline diamond composite cutters
BE1010801A3 (en) 1996-12-16 1999-02-02 Dresser Ind Drilling tool and / or core.
US5979578A (en) * 1997-06-05 1999-11-09 Smith International, Inc. Multi-layer, multi-grade multiple cutting surface PDC cutter
US6843333B2 (en) 1999-11-29 2005-01-18 Baker Hughes Incorporated Impregnated rotary drag bit
US6510906B1 (en) * 1999-11-29 2003-01-28 Baker Hughes Incorporated Impregnated bit with PDC cutters in cone area
US7726420B2 (en) 2004-04-30 2010-06-01 Smith International, Inc. Cutter having shaped working surface with varying edge chamfer
US7533740B2 (en) 2005-02-08 2009-05-19 Smith International Inc. Thermally stable polycrystalline diamond cutting elements and bits incorporating the same
US8028771B2 (en) 2007-02-06 2011-10-04 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
US7942219B2 (en) 2007-03-21 2011-05-17 Smith International, Inc. Polycrystalline diamond constructions having improved thermal stability
US7730976B2 (en) 2007-10-31 2010-06-08 Baker Hughes Incorporated Impregnated rotary drag bit and related methods
US9297211B2 (en) 2007-12-17 2016-03-29 Smith International, Inc. Polycrystalline diamond construction with controlled gradient metal content
US8083012B2 (en) 2008-10-03 2011-12-27 Smith International, Inc. Diamond bonded construction with thermally stable region
US8771389B2 (en) * 2009-05-06 2014-07-08 Smith International, Inc. Methods of making and attaching TSP material for forming cutting elements, cutting elements having such TSP material and bits incorporating such cutting elements
US9739097B2 (en) 2011-04-26 2017-08-22 Smith International, Inc. Polycrystalline diamond compact cutters with conic shaped end
CN103635654B (en) 2011-04-26 2017-07-07 史密斯国际有限公司 The method of the attached scroll-diced device of sleeve pipe, compression spring, and/or pin/ball is used in fixed cutter drill bit
US11492852B2 (en) 2015-12-14 2022-11-08 Schlumberger Technology Corporation Mechanical locking of cutting element with carbide matrix

Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
US4148368A (en) * 1976-09-27 1979-04-10 Smith International, Inc. Rock bit with wear resistant inserts
EP0029535A1 (en) * 1979-11-19 1981-06-03 General Electric Company Compacts for diamond drill and saw applications
US4339009A (en) * 1979-03-27 1982-07-13 Busby Donald W Button assembly for rotary rock cutters
GB2138864A (en) * 1983-04-28 1984-10-31 Sumitomo Metal Mining Co Roller drill bits
US4491188A (en) * 1983-03-07 1985-01-01 Norton Christensen, Inc. Diamond cutting element in a rotating bit
US4499959A (en) * 1983-03-14 1985-02-19 Christensen, Inc. Tooth configuration for an earth boring bit
US4529047A (en) * 1983-02-24 1985-07-16 Norton Christensen, Inc. Cutting tooth and a rotating bit having a fully exposed polycrystalline diamond element
EP0156235A2 (en) * 1984-03-26 1985-10-02 Eastman Christensen Company Multi-component cutting element using consolidated rod-like polycrystalline diamond
EP0169683A2 (en) * 1984-07-19 1986-01-29 Reed Tool Company Limited Improvements in or relating to rotary drill bits
EP0211642A2 (en) * 1985-08-06 1987-02-25 Nl Industries Inc. Improved drag type drill bit
US4646857A (en) * 1985-10-24 1987-03-03 Reed Tool Company Means to secure cutting elements on drag type drill bits
EP0246789A2 (en) * 1986-05-16 1987-11-25 Nl Petroleum Products Limited Cutter for a rotary drill bit, rotary drill bit with such a cutter, and method of manufacturing such a cutter

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3106973A (en) * 1960-09-26 1963-10-15 Christensen Diamond Prod Co Rotary drill bits
US4148368A (en) * 1976-09-27 1979-04-10 Smith International, Inc. Rock bit with wear resistant inserts
US4339009A (en) * 1979-03-27 1982-07-13 Busby Donald W Button assembly for rotary rock cutters
EP0029535A1 (en) * 1979-11-19 1981-06-03 General Electric Company Compacts for diamond drill and saw applications
US4529047A (en) * 1983-02-24 1985-07-16 Norton Christensen, Inc. Cutting tooth and a rotating bit having a fully exposed polycrystalline diamond element
US4491188A (en) * 1983-03-07 1985-01-01 Norton Christensen, Inc. Diamond cutting element in a rotating bit
US4499959A (en) * 1983-03-14 1985-02-19 Christensen, Inc. Tooth configuration for an earth boring bit
GB2138864A (en) * 1983-04-28 1984-10-31 Sumitomo Metal Mining Co Roller drill bits
EP0156235A2 (en) * 1984-03-26 1985-10-02 Eastman Christensen Company Multi-component cutting element using consolidated rod-like polycrystalline diamond
EP0169683A2 (en) * 1984-07-19 1986-01-29 Reed Tool Company Limited Improvements in or relating to rotary drill bits
EP0211642A2 (en) * 1985-08-06 1987-02-25 Nl Industries Inc. Improved drag type drill bit
US4646857A (en) * 1985-10-24 1987-03-03 Reed Tool Company Means to secure cutting elements on drag type drill bits
EP0246789A2 (en) * 1986-05-16 1987-11-25 Nl Petroleum Products Limited Cutter for a rotary drill bit, rotary drill bit with such a cutter, and method of manufacturing such a cutter

Also Published As

Publication number Publication date
GB8711255D0 (en) 1987-06-17
EP0291314A2 (en) 1988-11-17
GB2204625A (en) 1988-11-16
GB8811390D0 (en) 1988-06-15

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