GB2283773B - Improvements in or relating to elements faced with superhard material - Google Patents

Improvements in or relating to elements faced with superhard material

Info

Publication number
GB2283773B
GB2283773B GB9422427A GB9422427A GB2283773B GB 2283773 B GB2283773 B GB 2283773B GB 9422427 A GB9422427 A GB 9422427A GB 9422427 A GB9422427 A GB 9422427A GB 2283773 B GB2283773 B GB 2283773B
Authority
GB
United Kingdom
Prior art keywords
relating
superhard material
elements faced
faced
elements
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
GB9422427A
Other versions
GB2283773A (en
GB9422427D0 (en
Inventor
Terry Richard Matthias
Nigel Dennis Griffin
John Fuller
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 GB939323207A external-priority patent/GB9323207D0/en
Priority claimed from GB9412267A external-priority patent/GB9412267D0/en
Priority to GB9422427A priority Critical patent/GB2283773B/en
Application filed by Camco Drilling Group Ltd filed Critical Camco Drilling Group Ltd
Priority to GB9702404A priority patent/GB2308142B/en
Priority to GB9702412A priority patent/GB2308144B/en
Priority to GB9702411A priority patent/GB2308143B/en
Publication of GB9422427D0 publication Critical patent/GB9422427D0/en
Publication of GB2283773A publication Critical patent/GB2283773A/en
Publication of GB2283773B publication Critical patent/GB2283773B/en
Application granted granted Critical
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
    • E21B10/573—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B27/00—Tools for turning or boring machines; Tools of a similar kind in general; Accessories therefor
    • B23B27/14—Cutting tools of which the bits or tips or cutting inserts are of special material
    • B23B27/141—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness
    • B23B27/145—Specially shaped plate-like cutting inserts, i.e. length greater or equal to width, width greater than or equal to thickness characterised by having a special shape
    • B23B27/146—Means to improve the adhesion between the substrate and the coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24D—TOOLS FOR GRINDING, BUFFING OR SHARPENING
    • B24D3/00—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents
    • B24D3/001—Physical features of abrasive bodies, or sheets, e.g. abrasive surfaces of special nature; Abrasive bodies or sheets characterised by their constituents the constituent being used as supporting member
    • 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
    • E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
    • E21B17/10—Wear protectors; Centralising devices, e.g. stabilisers
    • E21B17/1092—Gauge section of drill bits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2222/00—Materials of tools or workpieces composed of metals, alloys or metal matrices
    • B23B2222/28—Details of hard metal, i.e. cemented carbide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/12—Boron nitride
    • B23B2226/125—Boron nitride cubic [CBN]
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B2226/00—Materials of tools or workpieces not comprising a metal
    • B23B2226/31—Diamond
    • B23B2226/315—Diamond polycrystalline [PCD]
GB9422427A 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material Expired - Fee Related GB2283773B (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB9702411A GB2308143B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9422427A GB2283773B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9702404A GB2308142B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9702412A GB2308144B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB939323207A GB9323207D0 (en) 1993-11-10 1993-11-10 Improvements in or relating to elements faced with superhard material
GB9412267A GB9412267D0 (en) 1994-06-18 1994-06-18 Improvements in or relating to elements faced with superhard material
GB9422427A GB2283773B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material

Publications (3)

Publication Number Publication Date
GB9422427D0 GB9422427D0 (en) 1995-01-04
GB2283773A GB2283773A (en) 1995-05-17
GB2283773B true GB2283773B (en) 1998-02-25

Family

ID=27266926

Family Applications (4)

Application Number Title Priority Date Filing Date
GB9702404A Expired - Fee Related GB2308142B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9422427A Expired - Fee Related GB2283773B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9702411A Expired - Lifetime GB2308143B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9702412A Expired - Fee Related GB2308144B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB9702404A Expired - Fee Related GB2308142B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB9702411A Expired - Lifetime GB2308143B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material
GB9702412A Expired - Fee Related GB2308144B (en) 1993-11-10 1994-11-07 Improvements in or relating to elements faced with superhard material

Country Status (1)

Country Link
GB (4) GB2308142B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9412247D0 (en) * 1994-06-18 1994-08-10 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB2295837B (en) * 1994-12-10 1998-09-02 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB9506079D0 (en) * 1995-03-24 1995-05-10 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
GB2331538B (en) * 1995-03-24 1999-07-14 Camco Drilling Group Ltd Improvemnts in or relating to elements faced with superhard material
GB9508226D0 (en) * 1995-04-22 1995-06-07 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material
US6077591A (en) * 1995-09-23 2000-06-20 Camco International (Uk) Limited Elements faced with superhard material
DE69611810T2 (en) * 1995-09-23 2001-08-23 Camco Drilling Group Ltd Cutting insert for milling chisels
US6571891B1 (en) * 1996-04-17 2003-06-03 Baker Hughes Incorporated Web cutter
US5788001A (en) * 1996-04-18 1998-08-04 Camco Drilling Group Limited Of Hycalog Elements faced with superhard material
US6082474A (en) * 1997-07-26 2000-07-04 Camco International Limited Elements faced with superhard material
DE69820349T2 (en) 1997-07-26 2004-10-28 Camco International (Uk) Ltd., Stonehouse Improvements to cutting elements with a surface made of super hard material
GB2327690B (en) * 1997-07-26 2002-02-27 Camco Internat Improvements in or relating to the manufacture of elements faced with superhard material
EP0902159A3 (en) * 1997-09-02 2000-03-08 Tempo Technology Corporation Cutting element with a non-planar, non-linear interface
FR2774420A1 (en) * 1998-02-05 1999-08-06 D A T C Diamond And Tungsten C Cutter for a drill bit with tungsten carbide support and asymmetric polycrystalline diamond coating
GB9809690D0 (en) 1998-05-08 1998-07-01 Camco Int Uk Ltd Improvements in elements faced with superhard material
GB2375129B (en) * 2000-06-27 2003-04-23 Baker Hughes Inc Cutter for a drill bit
US6488106B1 (en) 2001-02-05 2002-12-03 Varel International, Inc. Superabrasive cutting element

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4784023A (en) * 1985-12-05 1988-11-15 Diamant Boart-Stratabit (Usa) Inc. Cutting element having composite formed of cemented carbide substrate and diamond layer and method of making same
US5120327A (en) * 1991-03-05 1992-06-09 Diamant-Boart Stratabit (Usa) Inc. Cutting composite formed of cemented carbide substrate and diamond layer
GB2275068A (en) * 1993-02-10 1994-08-17 Baker Hughes Inc Polycrystalline diamond cutting element

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2283772B (en) * 1993-11-10 1997-01-15 Camco Drilling Group Ltd Improvements in or relating to elements faced with superhard material

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4784023A (en) * 1985-12-05 1988-11-15 Diamant Boart-Stratabit (Usa) Inc. Cutting element having composite formed of cemented carbide substrate and diamond layer and method of making same
US5120327A (en) * 1991-03-05 1992-06-09 Diamant-Boart Stratabit (Usa) Inc. Cutting composite formed of cemented carbide substrate and diamond layer
GB2275068A (en) * 1993-02-10 1994-08-17 Baker Hughes Inc Polycrystalline diamond cutting element

Also Published As

Publication number Publication date
GB2308142B (en) 1998-02-25
GB2308144B (en) 1998-02-25
GB2308143B (en) 1998-02-25
GB2283773A (en) 1995-05-17
GB9702412D0 (en) 1997-03-26
GB2308144A (en) 1997-06-18
GB9422427D0 (en) 1995-01-04
GB2308142A (en) 1997-06-18
GB9702404D0 (en) 1997-03-26
GB9702411D0 (en) 1997-03-26
GB2308143A (en) 1997-06-18

Similar Documents

Publication Publication Date Title
GB2283772B (en) Improvements in or relating to elements faced with superhard material
GB2290326B (en) Improvements in or relating to elements faced with superhard material
GB2290570B (en) Improvements in or relating to elements faced with superhard material
GB2295837B (en) Improvements in or relating to elements faced with superhard material
GB2299109B (en) Improvements in or relating to elements faced with superhard material
GB2327692B (en) Improvements in or relating to elements faced with superhard material
GB2305449B (en) Improvements in or relating to elements faced with superhard material
GB2308142B (en) Improvements in or relating to elements faced with superhard material
GB2300016B (en) Improvements in or relating to elements faced with superhard material
GB2331538B (en) Improvemnts in or relating to elements faced with superhard material
ZA948858B (en) Improvements in or relating to elements faced with superhard material
GB9412267D0 (en) Improvements in or relating to elements faced with superhard material
GB9412248D0 (en) Improvements in or relating to elements faced with superhard material
GB9519484D0 (en) Improvements in or relating to elements faced with superhard material
GB9617520D0 (en) Improvements in or relating to elements faced with superhard material

Legal Events

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

Effective date: 20061107