ZA861407B - Cutting elements for rotary drill bits - Google Patents

Cutting elements for rotary drill bits

Info

Publication number
ZA861407B
ZA861407B ZA861407A ZA861407A ZA861407B ZA 861407 B ZA861407 B ZA 861407B ZA 861407 A ZA861407 A ZA 861407A ZA 861407 A ZA861407 A ZA 861407A ZA 861407 B ZA861407 B ZA 861407B
Authority
ZA
South Africa
Prior art keywords
cutting elements
drill bits
rotary drill
rotary
bits
Prior art date
Application number
ZA861407A
Other languages
English (en)
Inventor
Michael Thomas Wardley
Original Assignee
Nl Petroleum Prod
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 Prod filed Critical Nl Petroleum Prod
Publication of ZA861407B publication Critical patent/ZA861407B/xx

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
    • 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
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
    • B22F7/06—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of composite workpieces or articles from parts, e.g. to form tipped tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B18/00—Layered products essentially comprising ceramics, e.g. refractory products
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/515—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics
    • C04B35/52—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite
    • C04B35/528—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on carbon, e.g. graphite obtained from carbonaceous particles with or without other non-organic components
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    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/64—Burning or sintering processes
    • C04B35/645—Pressure sintering
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
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    • C04B2235/38—Non-oxide ceramic constituents or additives
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    • C04B2235/3813—Refractory metal borides
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    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
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    • C04B2237/58—Forming a gradient in composition or in properties across the laminate or the joined articles
    • C04B2237/588—Forming a gradient in composition or in properties across the laminate or the joined articles by joining layers or articles of the same composition but having different particle or grain sizes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C26/00—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes
    • C22C2026/005—Alloys containing diamond or cubic or wurtzitic boron nitride, fullerenes or carbon nanotubes with additional metal compounds being borides
ZA861407A 1985-03-01 1986-02-25 Cutting elements for rotary drill bits ZA861407B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB858505352A GB8505352D0 (en) 1985-03-01 1985-03-01 Cutting elements

Publications (1)

Publication Number Publication Date
ZA861407B true ZA861407B (en) 1986-10-29

Family

ID=10575298

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA861407A ZA861407B (en) 1985-03-01 1986-02-25 Cutting elements for rotary drill bits

Country Status (7)

Country Link
EP (1) EP0196777B1 (xx)
JP (1) JPS61270496A (xx)
CA (1) CA1258849A (xx)
DE (1) DE3677805D1 (xx)
GB (1) GB8505352D0 (xx)
IE (1) IE57436B1 (xx)
ZA (1) ZA861407B (xx)

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US8627904B2 (en) 2007-10-04 2014-01-14 Smith International, Inc. Thermally stable polycrystalline diamond material with gradient structure
US9297211B2 (en) 2007-12-17 2016-03-29 Smith International, Inc. Polycrystalline diamond construction with controlled gradient metal content
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IE860545L (en) 1986-09-01
JPS61270496A (ja) 1986-11-29
CA1258849A (en) 1989-08-29
GB8505352D0 (en) 1985-04-03
EP0196777A1 (en) 1986-10-08
DE3677805D1 (de) 1991-04-11
IE57436B1 (en) 1992-09-09
EP0196777B1 (en) 1991-03-06

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