GB1556562A - Earthboring drill bits - Google Patents

Earthboring drill bits

Info

Publication number
GB1556562A
GB1556562A GB28257/77A GB2825777A GB1556562A GB 1556562 A GB1556562 A GB 1556562A GB 28257/77 A GB28257/77 A GB 28257/77A GB 2825777 A GB2825777 A GB 2825777A GB 1556562 A GB1556562 A GB 1556562A
Authority
GB
United Kingdom
Prior art keywords
earthboring
drill bits
drill
bits
earthboring 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
GB28257/77A
Other languages
English (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.)
Norton Christensen Inc
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 GB1556562A publication Critical patent/GB1556562A/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

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)
  • Holo Graphy (AREA)
  • Surgical Instruments (AREA)
  • Drilling Tools (AREA)
GB28257/77A 1976-07-12 1977-07-06 Earthboring drill bits Expired GB1556562A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1556562A true GB1556562A (en) 1979-11-28

Family

ID=24829415

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28257/77A Expired GB1556562A (en) 1976-07-12 1977-07-06 Earthboring drill bits

Country Status (12)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2136035A (en) * 1983-02-22 1984-09-12 Nl Industries Inc Improved pcd cutter and bit
US4505342A (en) * 1982-11-22 1985-03-19 Nl Industries, Inc. Drill bit

Families Citing this family (12)

* 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
US4593777A (en) * 1983-02-22 1986-06-10 Nl Industries, Inc. Drag bit and cutters
JPS5998982U (ja) * 1983-07-26 1984-07-04 大成建設株式会社 ビツトの構造
JPS60246985A (ja) * 1984-05-21 1985-12-06 住友電気工業株式会社 ドリルビツト
US20050133276A1 (en) 2003-12-17 2005-06-23 Azar Michael G. Bits and cutting structures
DE102006031243A1 (de) * 2005-09-30 2007-04-05 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Sämaschine
JP5800587B2 (ja) * 2011-06-16 2015-10-28 株式会社斜面対策研究所 削孔装置
RU2615660C1 (ru) * 2016-02-16 2017-04-06 Товарищество С Ограниченной Ответственностью "Научно-Внедренческий Центр Алмас" Буровое долото
CN113445925B (zh) * 2021-08-02 2023-01-10 新疆格瑞迪斯石油技术股份有限公司 一种石油钻井用辅助钻杆稳定且提高清渣效率的牙轮钻头

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 (de) * 1938-02-03 1939-12-30 Edelstahlwerke Akt Ges Deutsch Mehrfluegeliger Drehbohrer mit Schneidentraegern aus Hertmetall
DE878477C (de) * 1939-05-17 1953-06-01 Diamantwerkzeugfabrik Rudolf H Steinbearbeitungswerkzeug, insbesondere Steinsaege, Steinbohrer, Abdrehwerkzeug od. dgl.
US2381415A (en) * 1943-11-19 1945-08-07 Jr Edward B Williams Drill bit
FR1340987A (fr) * 1962-09-15 1963-10-25 Turbodrill Internat Corp Trépan pour le forage des roches
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 (de) * 1971-03-20 1972-09-21 Richard Karnebogen Schlagbohrkrone zum Bohren von Gestein u.dgl.
US3825083A (en) * 1972-02-02 1974-07-23 Christensen Diamond Prod Co Drill bit and stabilizer combination
DE2327379C2 (de) * 1973-05-29 1982-12-30 Shell Internationale Research Maatschappij B.V., 2501 's-Gravenhage Drehbohrmeißel zum Gesteinsbohren mit Diamanten als Schneidelementen
GB1466036A (en) * 1974-02-13 1977-03-02 Sabre D R Rotary earth-cutting tools

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4505342A (en) * 1982-11-22 1985-03-19 Nl Industries, Inc. Drill bit
GB2136035A (en) * 1983-02-22 1984-09-12 Nl Industries Inc Improved pcd cutter and bit

Also Published As

Publication number Publication date
NL172477B (nl) 1983-04-05
NL172477C (nl) 1983-09-01
DE2730602B2 (de) 1981-02-05
DE2730602C3 (de) 1981-10-29
MX144441A (es) 1981-10-15
BR7704531A (pt) 1978-05-02
JPS5614832B2 (fr) 1981-04-07
NO771015L (no) 1978-01-13
FR2358537B1 (fr) 1983-03-25
FR2358537A1 (fr) 1978-02-10
AU504704B2 (en) 1979-10-25
JPS539205A (en) 1978-01-27
DE2730602A1 (de) 1978-01-19
CA1074779A (fr) 1980-04-01
NO149181B (no) 1983-11-21
AU2639577A (en) 1979-01-04
BE856697A (fr) 1978-01-11
SU946410A3 (ru) 1982-07-23
NL7706233A (nl) 1978-01-16
NO149181C (no) 1984-02-29

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
732 Registration of transactions, instruments or events in the register (sect. 32/1977)
PE20 Patent expired after termination of 20 years

Effective date: 19970705