GB2325481B - Elements faced with superhard material - Google Patents

Elements faced with superhard material

Info

Publication number
GB2325481B
GB2325481B GB9810215A GB9810215A GB2325481B GB 2325481 B GB2325481 B GB 2325481B GB 9810215 A GB9810215 A GB 9810215A GB 9810215 A GB9810215 A GB 9810215A GB 2325481 B GB2325481 B GB 2325481B
Authority
GB
United Kingdom
Prior art keywords
superhard material
elements faced
faced
elements
superhard
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 - Lifetime
Application number
GB9810215A
Other versions
GB2325481A (en
GB9810215D0 (en
Inventor
Nigel Dennis Griffin
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.)
ReedHycalog UK Ltd
Original Assignee
Camco International UK 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 Camco International UK Ltd filed Critical Camco International UK Ltd
Publication of GB9810215D0 publication Critical patent/GB9810215D0/en
Publication of GB2325481A publication Critical patent/GB2325481A/en
Application granted granted Critical
Publication of GB2325481B publication Critical patent/GB2325481B/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
GB9810215A 1997-05-16 1998-05-14 Elements faced with superhard material Expired - Lifetime GB2325481B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9709861.0A GB9709861D0 (en) 1997-05-16 1997-05-16 Elements faced with superhard material

Publications (3)

Publication Number Publication Date
GB9810215D0 GB9810215D0 (en) 1998-07-08
GB2325481A GB2325481A (en) 1998-11-25
GB2325481B true GB2325481B (en) 2001-12-12

Family

ID=10812351

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB9709861.0A Pending GB9709861D0 (en) 1997-05-16 1997-05-16 Elements faced with superhard material
GB9810215A Expired - Lifetime GB2325481B (en) 1997-05-16 1998-05-14 Elements faced with superhard material

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB9709861.0A Pending GB9709861D0 (en) 1997-05-16 1997-05-16 Elements faced with superhard material

Country Status (3)

Country Link
EP (1) EP0878602A3 (en)
GB (2) GB9709861D0 (en)
ZA (1) ZA984058B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6527069B1 (en) * 1998-06-25 2003-03-04 Baker Hughes Incorporated Superabrasive cutter having optimized table thickness and arcuate table-to-substrate interfaces
RU2013102914A (en) * 2010-06-24 2014-07-27 Бейкер Хьюз Инкорпорейтед CUTTING ELEMENTS FOR DRILLING TOOLS, DRILLING TOOLS WITH SUCH CUTTING ELEMENTS AND METHODS FOR FORMING CUTTING ELEMENTS FOR DRILLING TOOLS
US9138872B2 (en) 2013-03-13 2015-09-22 Diamond Innovations, Inc. Polycrystalline diamond drill blanks with improved carbide interface geometries
CN103670284A (en) * 2013-12-03 2014-03-26 常州深倍超硬材料有限公司 Impact-resisting wear resisting tool

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629373A (en) * 1983-06-22 1986-12-16 Megadiamond Industries, Inc. Polycrystalline diamond body with enhanced surface irregularities
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
US5011515A (en) * 1989-08-07 1991-04-30 Frushour Robert H Composite polycrystalline diamond compact with improved impact resistance
US5120327A (en) * 1991-03-05 1992-06-09 Diamant-Boart Stratabit (Usa) Inc. Cutting composite formed of cemented carbide substrate and diamond layer
GB2270493A (en) * 1992-09-11 1994-03-16 Gen Electric Encapsulation of segmented diamond compact
US5355969A (en) * 1993-03-22 1994-10-18 U.S. Synthetic Corporation Composite polycrystalline cutting element with improved fracture and delamination resistance
GB2299109A (en) * 1995-03-24 1996-09-25 Camco Drilling Group Ltd Preform elements faced with superhard material

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 (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4629373A (en) * 1983-06-22 1986-12-16 Megadiamond Industries, Inc. Polycrystalline diamond body with enhanced surface irregularities
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
US5011515A (en) * 1989-08-07 1991-04-30 Frushour Robert H Composite polycrystalline diamond compact with improved impact resistance
US5011515B1 (en) * 1989-08-07 1999-07-06 Robert H Frushour Composite polycrystalline diamond compact with improved impact resistance
US5120327A (en) * 1991-03-05 1992-06-09 Diamant-Boart Stratabit (Usa) Inc. Cutting composite formed of cemented carbide substrate and diamond layer
GB2270493A (en) * 1992-09-11 1994-03-16 Gen Electric Encapsulation of segmented diamond compact
US5355969A (en) * 1993-03-22 1994-10-18 U.S. Synthetic Corporation Composite polycrystalline cutting element with improved fracture and delamination resistance
GB2299109A (en) * 1995-03-24 1996-09-25 Camco Drilling Group Ltd Preform elements faced with superhard material

Also Published As

Publication number Publication date
GB9709861D0 (en) 1997-07-09
EP0878602A3 (en) 1999-08-25
ZA984058B (en) 1998-11-25
GB2325481A (en) 1998-11-25
EP0878602A2 (en) 1998-11-18
GB9810215D0 (en) 1998-07-08

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Expiry date: 20180513