NO771015L - BORKRONE. - Google Patents

BORKRONE.

Info

Publication number
NO771015L
NO771015L NO771015A NO771015A NO771015L NO 771015 L NO771015 L NO 771015L NO 771015 A NO771015 A NO 771015A NO 771015 A NO771015 A NO 771015A NO 771015 L NO771015 L NO 771015L
Authority
NO
Norway
Prior art keywords
borkrone
Prior art date
Application number
NO771015A
Other languages
Norwegian (no)
Other versions
NO149181C (en
NO149181B (en
Inventor
David S Rowley
Bruce H Walker
Coy M Fielder
Original Assignee
Christensen 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
Application filed by Christensen Inc filed Critical Christensen Inc
Publication of NO771015L publication Critical patent/NO771015L/en
Publication of NO149181B publication Critical patent/NO149181B/en
Publication of NO149181C publication Critical patent/NO149181C/en

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

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Surgical Instruments (AREA)
  • Drilling Tools (AREA)
  • Holo Graphy (AREA)
NO771015A 1976-07-12 1977-03-22 drill bit NO149181C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US70442476A 1976-07-12 1976-07-12

Publications (3)

Publication Number Publication Date
NO771015L true NO771015L (en) 1978-01-13
NO149181B NO149181B (en) 1983-11-21
NO149181C NO149181C (en) 1984-02-29

Family

ID=24829415

Family Applications (1)

Application Number Title Priority Date Filing Date
NO771015A NO149181C (en) 1976-07-12 1977-03-22 drill bit

Country Status (12)

Country Link
JP (1) JPS539205A (en)
AU (1) AU504704B2 (en)
BE (1) BE856697A (en)
BR (1) BR7704531A (en)
CA (1) CA1074779A (en)
DE (1) DE2730602C3 (en)
FR (1) FR2358537A1 (en)
GB (1) GB1556562A (en)
MX (1) MX144441A (en)
NL (1) NL172477C (en)
NO (1) NO149181C (en)
SU (1) SU946410A3 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
ZA781154B (en) * 1978-02-28 1979-09-26 De Beers Ind Diamond Abrasive bodies
GB2060735B (en) * 1979-10-16 1983-06-22 Christensen Inc Diamond drill bits for drilling bore holes in earth formations
US4453605A (en) * 1981-04-30 1984-06-12 Nl Industries, Inc. Drill bit and method of metallurgical and mechanical holding of cutters in a drill bit
US4505342A (en) * 1982-11-22 1985-03-19 Nl Industries, Inc. Drill bit
US4593777A (en) * 1983-02-22 1986-06-10 Nl Industries, Inc. Drag bit and cutters
US4538690A (en) * 1983-02-22 1985-09-03 Nl Industries, Inc. PDC cutter and bit
JPS5998982U (en) * 1983-07-26 1984-07-04 大成建設株式会社 Bit structure
JPS60246985A (en) * 1984-05-21 1985-12-06 住友電気工業株式会社 Drill bit
US20050133276A1 (en) 2003-12-17 2005-06-23 Azar Michael G. Bits and cutting structures
DE102006031243A1 (en) * 2005-09-30 2007-04-05 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Seed sowing machine, has set of sowing ploughs, and two rollers, which are viewed in top view, inclined oppositely and engaged to opening that is inclined in driving direction, are arranged behind each sowing plough
JP5800587B2 (en) * 2011-06-16 2015-10-28 株式会社斜面対策研究所 Drilling device
RU2615660C1 (en) * 2016-02-16 2017-04-06 Товарищество С Ограниченной Ответственностью "Научно-Внедренческий Центр Алмас" Drilling bit
CN113445925B (en) * 2021-08-02 2023-01-10 新疆格瑞迪斯石油技术股份有限公司 Roller bit with stable auxiliary drill rod and improved slag removal efficiency for petroleum drilling

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1388490A (en) * 1920-09-18 1921-08-23 John R Suman Rotary earth-boring drill
US1506119A (en) * 1923-02-01 1924-08-26 Ingersoll Rand Co Core-drill bit
DE686029C (en) * 1938-02-03 1939-12-30 Edelstahlwerke Akt Ges Deutsch Multi-blade rotary drill with cutting blades made of Hertmetall
DE878477C (en) * 1939-05-17 1953-06-01 Diamantwerkzeugfabrik Rudolf H Stone working tool, in particular stone saw, stone drill, turning tool or the like.
US2381415A (en) * 1943-11-19 1945-08-07 Jr Edward B Williams Drill bit
FR1340987A (en) * 1962-09-15 1963-10-25 Turbodrill Internat Corp Drill bit for rock drilling
US3311181A (en) * 1964-05-04 1967-03-28 John B Fowler Bi-metal drilling tooth
US3709308A (en) * 1970-12-02 1973-01-09 Christensen Diamond Prod Co Diamond drill bits
DE2113577A1 (en) * 1971-03-20 1972-09-21 Richard Karnebogen Percussion bit for drilling rock and the like.
US3825083A (en) * 1972-02-02 1974-07-23 Christensen Diamond Prod Co Drill bit and stabilizer combination
DE2327379C2 (en) * 1973-05-29 1982-12-30 Shell Internationale Research Maatschappij B.V., 2501 's-Gravenhage Rotary drill bit for rock drilling with diamonds as cutting elements
GB1466036A (en) * 1974-02-13 1977-03-02 Sabre D R Rotary earth-cutting tools

Also Published As

Publication number Publication date
GB1556562A (en) 1979-11-28
JPS5614832B2 (en) 1981-04-07
NO149181C (en) 1984-02-29
NO149181B (en) 1983-11-21
JPS539205A (en) 1978-01-27
BR7704531A (en) 1978-05-02
DE2730602B2 (en) 1981-02-05
DE2730602C3 (en) 1981-10-29
NL172477C (en) 1983-09-01
FR2358537A1 (en) 1978-02-10
FR2358537B1 (en) 1983-03-25
MX144441A (en) 1981-10-15
DE2730602A1 (en) 1978-01-19
BE856697A (en) 1978-01-11
AU2639577A (en) 1979-01-04
NL172477B (en) 1983-04-05
AU504704B2 (en) 1979-10-25
NL7706233A (en) 1978-01-16
SU946410A3 (en) 1982-07-23
CA1074779A (en) 1980-04-01

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