EP0370199A1 - Bohrmeissel mit polykristallinem Diamantsand - Google Patents

Bohrmeissel mit polykristallinem Diamantsand Download PDF

Info

Publication number
EP0370199A1
EP0370199A1 EP19890117669 EP89117669A EP0370199A1 EP 0370199 A1 EP0370199 A1 EP 0370199A1 EP 19890117669 EP19890117669 EP 19890117669 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Withdrawn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
EP19890117669
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
Priority to US26291088A priority Critical
Priority to US262910 priority
Application filed by General Electric Co filed Critical General Electric Co
Publication of EP0370199A1 publication Critical patent/EP0370199A1/de
Application status is Withdrawn legal-status Critical

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B10/00Drill bits
    • E21B10/46Drill bits characterised by wear resisting parts, e.g. diamond inserts
EP19890117669 1988-10-25 1989-09-25 Bohrmeissel mit polykristallinem Diamantsand Withdrawn EP0370199A1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US26291088A true 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
EP19890117669 Withdrawn EP0370199A1 (de) 1988-10-25 1989-09-25 Bohrmeissel mit polykristallinem Diamantsand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
CA2549061C (en) * 2003-12-11 2012-05-15 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 (en) 1990-07-03

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Legal Events

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AK Designated contracting states:

Kind code of ref document: A1

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

17P Request for examination filed

Effective date: 19901026

17Q First examination report

Effective date: 19910806

18D Deemed to be withdrawn

Effective date: 19911217