GB2309991B - A method of making multiple diamond layer polycrystalline diamond composite cutters - Google Patents

A method of making multiple diamond layer polycrystalline diamond composite cutters

Info

Publication number
GB2309991B
GB2309991B GB9707686A GB9707686A GB2309991B GB 2309991 B GB2309991 B GB 2309991B GB 9707686 A GB9707686 A GB 9707686A GB 9707686 A GB9707686 A GB 9707686A GB 2309991 B GB2309991 B GB 2309991B
Authority
GB
Grant status
Grant
Patent type
Prior art keywords
method
making multiple
layer polycrystalline
polycrystalline diamond
composite cutters
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
GB9707686A
Other versions
GB2309991A (en )
GB9707686D0 (en )
Inventor
David Truax
Scott M Packer
Roger Brown
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.)
Smith International Inc
Original Assignee
Smith International 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
Grant date

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
    • E21B10/56Button type inserts
    • E21B10/567Button type inserts with preformed cutting elements mounted on a distinct support, e.g. polycrystalline inserts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23POTHER WORKING OF METAL; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P15/00Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
    • B23P15/28Making specific metal objects by operations not covered by a single other subclass or a group in this subclass cutting tools
GB9707686A 1995-08-22 1996-08-22 A method of making multiple diamond layer polycrystalline diamond composite cutters Expired - Fee Related GB2309991B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08518036 US5667028A (en) 1995-08-22 1995-08-22 Multiple diamond layer polycrystalline diamond composite cutters
GB9617637A GB2304358B (en) 1995-08-22 1996-08-22 Multiple diamond layer polycrystalline diamond composite cutters and a method for making the same

Publications (3)

Publication Number Publication Date
GB9707686D0 true GB9707686D0 (en) 1997-06-04
GB2309991A true GB2309991A (en) 1997-08-13
GB2309991B true GB2309991B (en) 1997-10-29

Family

ID=26309907

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9707686A Expired - Fee Related GB2309991B (en) 1995-08-22 1996-08-22 A method of making multiple diamond layer polycrystalline diamond composite cutters

Country Status (1)

Country Link
GB (1) GB2309991B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20140231151A1 (en) * 2013-01-28 2014-08-21 National Oilwell Varco, L.P. Optimum powder placement in polycrystalline diamond cutters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156264A2 (en) * 1984-03-26 1985-10-02 Eastman Christensen Company Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks
EP0177466A2 (en) * 1984-10-04 1986-04-09 Strata Bit Corporation Cutting element for drill bits
GB2190412A (en) * 1986-05-16 1987-11-18 Nl Petroleum Prod Improvements in or relating to rotary drill bits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0156264A2 (en) * 1984-03-26 1985-10-02 Eastman Christensen Company Multi-component cutting element using triangular, rectangular and higher order polyhedral-shaped polycrystalline diamond disks
EP0177466A2 (en) * 1984-10-04 1986-04-09 Strata Bit Corporation Cutting element for drill bits
GB2190412A (en) * 1986-05-16 1987-11-18 Nl Petroleum Prod Improvements in or relating to rotary drill bits

Also Published As

Publication number Publication date Type
GB2309991A (en) 1997-08-13 application
GB9707686D0 (en) 1997-06-04 application

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Legal Events

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

Effective date: 20130822