EP0370199A1 - Bohrmeissel mit polykristallinem Diamantsand - Google Patents

Bohrmeissel mit polykristallinem Diamantsand Download PDF

Info

Publication number
EP0370199A1
EP0370199A1 EP89117669A EP89117669A EP0370199A1 EP 0370199 A1 EP0370199 A1 EP 0370199A1 EP 89117669 A EP89117669 A EP 89117669A EP 89117669 A EP89117669 A EP 89117669A EP 0370199 A1 EP0370199 A1 EP 0370199A1
Authority
EP
European Patent Office
Prior art keywords
bit
polycrystalline diamond
abrasive grit
diamond abrasive
diamond
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Withdrawn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
EP89117669A
Other languages
English (en)
French (fr)
Inventor
Luther Lamar White
Paul Donald Whalen
Paul Donald Gigl
David Earl Slutz
Harold Paul Bovenkerk
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.)
General Electric Co
Original Assignee
General Electric Co
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 General Electric Co filed Critical General Electric Co
Publication of EP0370199A1 publication Critical patent/EP0370199A1/de
Withdrawn legal-status Critical Current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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond inserts

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
EP89117669A 1988-10-25 1989-09-25 Bohrmeissel mit polykristallinem Diamantsand Withdrawn EP0370199A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26291088A 1988-10-25 1988-10-25
US262910 1988-10-25

Publications (1)

Publication Number Publication Date
EP0370199A1 true EP0370199A1 (de) 1990-05-30

Family

ID=22999592

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117669A Withdrawn EP0370199A1 (de) 1988-10-25 1989-09-25 Bohrmeissel mit polykristallinem Diamantsand

Country Status (2)

Country Link
EP (1) EP0370199A1 (de)
JP (1) JPH02171491A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270118A1 (de) * 2001-06-29 2003-01-02 Turbolite AG Schneidelemente
GB2419617A (en) * 2004-10-18 2006-05-03 Smith International Drill insert with diamond particle contiguity less than 15%
US7866419B2 (en) 2006-07-19 2011-01-11 Smith International, Inc. Diamond impregnated bits using a novel cutting structure
US20110291461A1 (en) * 2006-08-11 2011-12-01 Hall David R High Impact Resistant Degradation Element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005061181A2 (en) * 2003-12-11 2005-07-07 Element Six (Pty) Ltd Polycrystalline diamond abrasive elements

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718130A (en) * 1970-12-28 1973-02-27 F Wing Free core grinding drill
US3938599A (en) * 1974-03-27 1976-02-17 Hycalog, Inc. Rotary drill bit
US4173457A (en) * 1978-03-23 1979-11-06 Alloys, Incorporated Hardfacing composition of nickel-bonded sintered chromium carbide particles and tools hardfaced thereof
US4224380A (en) * 1978-03-28 1980-09-23 General Electric Company Temperature resistant abrasive compact and method for making same
EP0046374A2 (de) * 1980-08-14 1982-02-24 De Beers Industrial Diamond Division (Proprietary) Limited Schneideinsatzplatte
US4460053A (en) * 1981-08-14 1984-07-17 Christensen, Inc. Drill tool for deep wells
EP0116403A1 (de) * 1983-01-10 1984-08-22 De Beers Industrial Diamond Division (Proprietary) Limited Schleifprodukt
EP0137711A1 (de) * 1983-08-29 1985-04-17 General Electric Company Verfahren zur Herstellung von Schleifkörnern
EP0237359A2 (de) * 1986-03-13 1987-09-16 Smith International, Inc. Fräsdrehbohrmeissel
EP0264024A1 (de) * 1986-10-16 1988-04-20 General Electric Company Überzogener oxydationsbeständiger Schleifkörper und Verfahren zu seiner Herstellung

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3718130A (en) * 1970-12-28 1973-02-27 F Wing Free core grinding drill
US3938599A (en) * 1974-03-27 1976-02-17 Hycalog, Inc. Rotary drill bit
US4173457A (en) * 1978-03-23 1979-11-06 Alloys, Incorporated Hardfacing composition of nickel-bonded sintered chromium carbide particles and tools hardfaced thereof
US4224380A (en) * 1978-03-28 1980-09-23 General Electric Company Temperature resistant abrasive compact and method for making same
EP0046374A2 (de) * 1980-08-14 1982-02-24 De Beers Industrial Diamond Division (Proprietary) Limited Schneideinsatzplatte
US4460053A (en) * 1981-08-14 1984-07-17 Christensen, Inc. Drill tool for deep wells
EP0116403A1 (de) * 1983-01-10 1984-08-22 De Beers Industrial Diamond Division (Proprietary) Limited Schleifprodukt
EP0137711A1 (de) * 1983-08-29 1985-04-17 General Electric Company Verfahren zur Herstellung von Schleifkörnern
EP0237359A2 (de) * 1986-03-13 1987-09-16 Smith International, Inc. Fräsdrehbohrmeissel
EP0264024A1 (de) * 1986-10-16 1988-04-20 General Electric Company Überzogener oxydationsbeständiger Schleifkörper und Verfahren zu seiner Herstellung

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1270118A1 (de) * 2001-06-29 2003-01-02 Turbolite AG Schneidelemente
GB2419617A (en) * 2004-10-18 2006-05-03 Smith International Drill insert with diamond particle contiguity less than 15%
GB2419617B (en) * 2004-10-18 2007-08-22 Smith International Impregnated diamond cutting structures
US7350599B2 (en) 2004-10-18 2008-04-01 Smith International, Inc. Impregnated diamond cutting structures
US7866419B2 (en) 2006-07-19 2011-01-11 Smith International, Inc. Diamond impregnated bits using a novel cutting structure
US20110291461A1 (en) * 2006-08-11 2011-12-01 Hall David R High Impact Resistant Degradation Element
US9316061B2 (en) * 2006-08-11 2016-04-19 David R. Hall High impact resistant degradation element

Also Published As

Publication number Publication date
JPH02171491A (ja) 1990-07-03

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Legal Events

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

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Designated state(s): BE DE ES FR GB SE

17P Request for examination filed

Effective date: 19901026

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Effective date: 19910806

STAA Information on the status of an ep patent application or granted ep patent

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18D Application deemed to be withdrawn

Effective date: 19911217