EP0197741A3 - Drehbohrmeissel und Verfahren zu deren Herstellung - Google Patents

Drehbohrmeissel und Verfahren zu deren Herstellung Download PDF

Info

Publication number
EP0197741A3
EP0197741A3 EP86302375A EP86302375A EP0197741A3 EP 0197741 A3 EP0197741 A3 EP 0197741A3 EP 86302375 A EP86302375 A EP 86302375A EP 86302375 A EP86302375 A EP 86302375A EP 0197741 A3 EP0197741 A3 EP 0197741A3
Authority
EP
European Patent Office
Prior art keywords
cast iron
mould
bit body
rotary drill
iron
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Withdrawn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
EP86302375A
Other languages
English (en)
French (fr)
Other versions
EP0197741A2 (de
Inventor
Nigel Dennis Griffin
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.)
Camco Drilling Group Ltd
Original Assignee
NL Petroleum Products Ltd
Reed Tool Co 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 NL Petroleum Products Ltd, Reed Tool Co Ltd filed Critical NL Petroleum Products Ltd
Publication of EP0197741A2 publication Critical patent/EP0197741A2/de
Publication of EP0197741A3 publication Critical patent/EP0197741A3/de
Withdrawn legal-status Critical Current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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/20—Measures not previously mentioned for influencing the grain structure or texture; Selection of compositions therefor
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (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)
  • Heat Treatment Of Articles (AREA)
EP86302375A 1985-04-02 1986-04-01 Drehbohrmeissel und Verfahren zu deren Herstellung Withdrawn EP0197741A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB858508622A GB8508622D0 (en) 1985-04-02 1985-04-02 Rotary drill bits
GB8508622 1985-04-02

Publications (2)

Publication Number Publication Date
EP0197741A2 EP0197741A2 (de) 1986-10-15
EP0197741A3 true EP0197741A3 (de) 1988-03-16

Family

ID=10577095

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86302375A Withdrawn EP0197741A3 (de) 1985-04-02 1986-04-01 Drehbohrmeissel und Verfahren zu deren Herstellung

Country Status (3)

Country Link
EP (1) EP0197741A3 (de)
CA (1) CA1256423A (de)
GB (1) GB8508622D0 (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2793174B1 (fr) * 1999-05-07 2001-06-29 Renault Procede et dispositif pour la realisation par moulage d'une culasse de moteur a combustion interne
US6588487B2 (en) 2000-07-17 2003-07-08 Consolidated Engineering Company, Inc. Methods and apparatus for utilization of chills for casting
CN103273042B (zh) * 2013-05-24 2015-04-15 成都工业学院 一种碳化钒钛合金钻井钻头的制造方法
CN108588768B (zh) * 2018-05-29 2019-03-01 广州市华番盛化工科技有限公司 钢铁件碱性深孔镀镍添加剂、预镀液及预镀工艺

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029140A (en) * 1975-04-01 1977-06-14 The British Cast Iron Research Association Method of and means for obtaining white cast iron
WO1984000385A1 (en) * 1982-07-19 1984-02-02 Giw Ind Inc Abrasive resistant white cast iron
US4499795A (en) * 1983-09-23 1985-02-19 Strata Bit Corporation Method of drill bit manufacture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5575874A (en) * 1978-11-30 1980-06-07 Yanmar Diesel Engine Co Ltd Production of tough cast iron casting

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029140A (en) * 1975-04-01 1977-06-14 The British Cast Iron Research Association Method of and means for obtaining white cast iron
WO1984000385A1 (en) * 1982-07-19 1984-02-02 Giw Ind Inc Abrasive resistant white cast iron
US4499795A (en) * 1983-09-23 1985-02-19 Strata Bit Corporation Method of drill bit manufacture

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
MACHINE DESIGN, vol. 55, no. 8, April 1983, pages 10-12,22, Cleveland, Ohio, US; "The five types of cast iron" *
PATENT ABSTRACTS OF JAPAN, vol. 4, no. 116, (M-27)(598), 19th August 1980; & JP-A-55-075874 (YANMAR DIESEL ENGINE K.K.) 07-06-1980 *

Also Published As

Publication number Publication date
EP0197741A2 (de) 1986-10-15
GB8508622D0 (en) 1985-05-09
CA1256423A (en) 1989-06-27

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Owner name: REED TOOL COMPANY LIMITED

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Effective date: 19891219

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Inventor name: GRIFFIN, NIGEL DENNIS