DE3175194D1 - Rotary drill bits - Google Patents

Rotary drill bits

Info

Publication number
DE3175194D1
DE3175194D1 DE8181300062T DE3175194T DE3175194D1 DE 3175194 D1 DE3175194 D1 DE 3175194D1 DE 8181300062 T DE8181300062 T DE 8181300062T DE 3175194 T DE3175194 T DE 3175194T DE 3175194 D1 DE3175194 D1 DE 3175194D1
Authority
DE
Germany
Prior art keywords
drill bits
rotary drill
rotary
bits
drill
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
Application number
DE8181300062T
Other languages
German (de)
Inventor
John Denzil Barr
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.)
Stonehouse Uk Ltd
Original Assignee
Stonehouse 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 Stonehouse Uk Ltd filed Critical Stonehouse Uk Ltd
Application granted granted Critical
Publication of DE3175194D1 publication Critical patent/DE3175194D1/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK 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
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00—Drill bits
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Earth Drilling (AREA)
DE8181300062T 1980-01-10 1981-01-08 Rotary drill bits Expired DE3175194D1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8000606 1980-01-10

Publications (1)

Publication Number Publication Date
DE3175194D1 true DE3175194D1 (en) 1986-10-02

Family

ID=10510518

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8181300062T Expired DE3175194D1 (en) 1980-01-10 1981-01-08 Rotary drill bits

Country Status (3)

Country Link
EP (1) EP0032428B1 (en)
AU (1) AU547017B2 (en)
DE (1) DE3175194D1 (en)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2118227B (en) * 1982-04-08 1985-11-06 Kennametal Inc Earthworking tool and method for protecting from abnormally high cutting loads
US4542943A (en) * 1982-04-08 1985-09-24 Kennametal Inc. Earthworking tool for protecting from abnormally high cutting loads
AU578637B2 (en) * 1983-12-03 1988-11-03 N.L. Petroleum Products Ltd. Rotary drill bits and cutting elements for such bits
GB8332342D0 (en) * 1983-12-03 1984-01-11 Nl Petroleum Prod Rotary drill bits
AU3592584A (en) * 1983-12-03 1985-06-06 N.L. Petroleum Products Ltd. Rotary drill bit
AU612224B2 (en) * 1988-01-28 1991-07-04 Norton Christensen Inc. Reinforced rotary drill bit
EP0511200A1 (en) * 1991-05-16 1992-10-28 ROCBO Werkzeug Gesellschaft m.b.H. Drill bit respectively cutter
US5213171A (en) * 1991-09-23 1993-05-25 Smith International, Inc. Diamond drag bit
ZA93584B (en) * 1992-05-27 1993-09-01 De Beers Ind Diamond Abrasive tools.
GB2279677B (en) * 1993-07-07 1996-08-21 Camco Drilling Group Ltd Improvements in or relating to cutting elements for rotary drill bits
US6009963A (en) * 1997-01-14 2000-01-04 Baker Hughes Incorporated Superabrasive cutting element with enhanced stiffness, thermal conductivity and cutting efficiency
US20050133276A1 (en) * 2003-12-17 2005-06-23 Azar Michael G. Bits and cutting structures

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB683018A (en) * 1950-04-21 1952-11-19 Sandvikens Jernverks Ab Insert for rock drills
US2889138A (en) * 1955-07-06 1959-06-02 Sandvikens Jernverks Ab Rock drill cutting insert
FR1340987A (en) * 1962-09-15 1963-10-25 Turbodrill Internat Corp Drill bit for rock drilling
US3168925A (en) * 1963-04-26 1965-02-09 Ingersoll Rand Co Cutting inserts for rock drill bits
US3311181A (en) * 1964-05-04 1967-03-28 John B Fowler Bi-metal drilling tooth
US3362489A (en) * 1965-10-15 1968-01-09 Alaskaug Inc Earth auger bifurcated point
US3697137A (en) * 1969-12-15 1972-10-10 Cincinnati Mine Machinery Co Resilient mounting for cutting tools of mining machines and the like
US3717209A (en) * 1971-06-10 1973-02-20 Pacific Tooling & Eng Co Replaceable wear-resistant element and method for replacing same
US3745623A (en) * 1971-12-27 1973-07-17 Gen Electric Diamond tools for machining
US3771612A (en) * 1972-07-17 1973-11-13 Pacific Tooling Eng Co Replaceable wear-resistant element assembly
US4148368A (en) * 1976-09-27 1979-04-10 Smith International, Inc. Rock bit with wear resistant inserts
US4108260A (en) * 1977-04-01 1978-08-22 Hughes Tool Company Rock bit with specially shaped inserts
US4156329A (en) * 1977-05-13 1979-05-29 General Electric Company Method for fabricating a rotary drill bit and composite compact cutters therefor
US4168923A (en) * 1977-10-21 1979-09-25 Smith International, Inc. Electron beam welding of carbide inserts
US4199035A (en) * 1978-04-24 1980-04-22 General Electric Company Cutting and drilling apparatus with threadably attached compacts

Also Published As

Publication number Publication date
EP0032428B1 (en) 1986-08-27
AU547017B2 (en) 1985-10-03
EP0032428A1 (en) 1981-07-22
AU6618681A (en) 1981-07-16

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee