GB8609713D0 - Drill bit & cutter - Google Patents

Drill bit & cutter

Info

Publication number
GB8609713D0
GB8609713D0 GB868609713A GB8609713A GB8609713D0 GB 8609713 D0 GB8609713 D0 GB 8609713D0 GB 868609713 A GB868609713 A GB 868609713A GB 8609713 A GB8609713 A GB 8609713A GB 8609713 D0 GB8609713 D0 GB 8609713D0
Authority
GB
United Kingdom
Prior art keywords
cutter
drill bit
drill
bit
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Withdrawn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
GB868609713A
Other versions
GB2174740A (en
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.)
NL Industries Inc
Original Assignee
NL Industries 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
Priority claimed from US06/693,848 external-priority patent/US4669556A/en
Application filed by NL Industries Inc filed Critical NL Industries Inc
Publication of GB8609713D0 publication Critical patent/GB8609713D0/en
Publication of GB2174740A publication Critical patent/GB2174740A/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Withdrawn legal-status Critical Current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
    • E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
    • E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other 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
    • 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
GB08609713A 1985-01-25 1986-04-21 Improved drill bit and cutter therefor Withdrawn GB2174740A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/693,848 US4669556A (en) 1984-01-31 1985-01-25 Drill bit and cutter therefor

Publications (2)

Publication Number Publication Date
GB8609713D0 true GB8609713D0 (en) 1986-05-29
GB2174740A GB2174740A (en) 1986-11-12

Family

ID=24786363

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08609713A Withdrawn GB2174740A (en) 1985-01-25 1986-04-21 Improved drill bit and cutter therefor

Country Status (1)

Country Link
GB (1) GB2174740A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8025113B2 (en) 2006-11-29 2011-09-27 Baker Hughes Incorporated Detritus flow management features for drag bit cutters and bits so equipped

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE452636B (en) * 1983-09-20 1987-12-07 Santrade Ltd Rock drill bit
US4669556A (en) * 1984-01-31 1987-06-02 Nl Industries, Inc. Drill bit and cutter therefor

Also Published As

Publication number Publication date
GB2174740A (en) 1986-11-12

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)

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