ZA935114B - Abrasive tools - Google Patents

Abrasive tools

Info

Publication number
ZA935114B
ZA935114B ZA935114A ZA935114A ZA935114B ZA 935114 B ZA935114 B ZA 935114B ZA 935114 A ZA935114 A ZA 935114A ZA 935114 A ZA935114 A ZA 935114A ZA 935114 B ZA935114 B ZA 935114B
Authority
ZA
South Africa
Prior art keywords
abrasive tools
abrasive
tools
Prior art date
Application number
ZA935114A
Inventor
Bernard Alan Jennings
Original Assignee
De Beers Ind Diamond
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 De Beers Ind Diamond filed Critical De Beers Ind Diamond
Publication of ZA935114B publication Critical patent/ZA935114B/en

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
    • E21B10/56—Button-type inserts
    • 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
    • E21B10/62—Drill bits characterised by parts, e.g. cutting elements, which are detachable or adjustable
ZA935114A 1992-07-23 1993-07-15 Abrasive tools ZA935114B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA925550 1992-07-23

Publications (1)

Publication Number Publication Date
ZA935114B true ZA935114B (en) 1994-02-08

Family

ID=25581917

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA935114A ZA935114B (en) 1992-07-23 1993-07-15 Abrasive tools

Country Status (3)

Country Link
EP (1) EP0581534B1 (en)
DE (1) DE69309178T2 (en)
ZA (1) ZA935114B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6170576B1 (en) * 1995-09-22 2001-01-09 Weatherford/Lamb, Inc. Mills for wellbore operations
US5678645A (en) * 1995-11-13 1997-10-21 Baker Hughes Incorporated Mechanically locked cutters and nozzles
DE50202009D1 (en) 2001-08-01 2005-02-17 Techmo Entw & Vertriebs Gmbh drill bit
AU2007201463B2 (en) * 2003-08-13 2010-09-09 Sandvik Intellectual Property Ab Shaped inserts with increased retention force
US8011456B2 (en) * 2007-07-18 2011-09-06 Baker Hughes Incorporated Rotationally indexable cutting elements and drill bits therefor
US9481033B2 (en) 2013-10-25 2016-11-01 Baker Hughes Incorporated Earth-boring tools including cutting elements with alignment features and related methods

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2614813A (en) * 1949-07-08 1952-10-21 Ingersoll Rand Co Rock drilling tool
US3749190A (en) * 1971-05-06 1973-07-31 Ingersoll Rand Co Retaining carbide in rock drill bits
US4199035A (en) * 1978-04-24 1980-04-22 General Electric Company Cutting and drilling apparatus with threadably attached compacts
US4323131A (en) * 1980-09-08 1982-04-06 Baker Service Company, Inc. Removable anti-wear insert
US4381825A (en) * 1981-08-27 1983-05-03 Strata Bit Corporation Drill bit nozzle
US4660659A (en) * 1983-02-22 1987-04-28 Nl Industries, Inc. Drag type drill bit
DE3500931A1 (en) * 1984-01-31 1985-08-08 De Beers Industrial Diamond Division (Proprietary) Ltd., Johannesburg, Transvaal CUTTING TOOL
DE3421676A1 (en) * 1984-06-09 1985-12-12 Belzer-Dowidat Gmbh Werkzeug-Union, 5600 Wuppertal WHEEL CHISEL
FR2609750B1 (en) * 1987-01-19 1989-04-07 Vennin Henri ROTARY MONOBLOCK DRILL BIT

Also Published As

Publication number Publication date
DE69309178D1 (en) 1997-04-30
DE69309178T2 (en) 1997-10-16
EP0581534A1 (en) 1994-02-02
EP0581534B1 (en) 1997-03-26

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