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GB2318994B - Improvements in or relating to rotary drill bits - Google Patents

Improvements in or relating to rotary drill bits

Info

Publication number
GB2318994B
GB2318994B GB9801905A GB9801905A GB2318994B GB 2318994 B GB2318994 B GB 2318994B GB 9801905 A GB9801905 A GB 9801905A GB 9801905 A GB9801905 A GB 9801905A GB 2318994 B GB2318994 B GB 2318994B
Authority
GB
United Kingdom
Prior art keywords
relating
drill bits
rotary drill
rotary
bits
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.)
Expired - Fee Related
Application number
GB9801905A
Other versions
GB2318994A (en
GB9801905D0 (en
Inventor
David Truax
Douglas Caraway
Stephen Martin Evans
Andrew Murdock
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
Camco Drilling Group 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
Priority claimed from GBGB9500659.9A external-priority patent/GB9500659D0/en
Application filed by Camco Drilling Group Ltd filed Critical Camco Drilling Group Ltd
Priority to GB9801905A priority Critical patent/GB2318994B/en
Publication of GB9801905D0 publication Critical patent/GB9801905D0/en
Publication of GB2318994A publication Critical patent/GB2318994A/en
Application granted granted Critical
Publication of GB2318994B publication Critical patent/GB2318994B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/16—Casting in, on, or around objects which form part of the product for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/06—Casting in, on, or around objects which form part of the product for manufacturing or repairing tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D19/00—Casting in, on, or around objects which form part of the product
    • B22D19/14—Casting in, on, or around objects which form part of the product the objects being filamentary or particulate in form
    • 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
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/12—Both compacting and sintering
    • B22F3/1208—Containers or coating used therefor
    • B22F3/1258—Container manufacturing
    • B22F3/1275—Container manufacturing by coating a model and eliminating the model before consolidation
    • 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
    • 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
    • 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
    • E21B10/54—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of the rotary drag type, e.g. fork-type bits
    • 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
    • B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Manufacturing & Machinery (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Composite Materials (AREA)
  • Chemical & Material Sciences (AREA)
  • Earth Drilling (AREA)
GB9801905A 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits Expired - Fee Related GB2318994B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB9801905A GB2318994B (en) 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GBGB9500659.9A GB9500659D0 (en) 1995-01-13 1995-01-13 Improvements in or relating to rotary drill bits
GB9801905A GB2318994B (en) 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits
GB9600312A GB2296880B (en) 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits

Publications (3)

Publication Number Publication Date
GB9801905D0 GB9801905D0 (en) 1998-03-25
GB2318994A GB2318994A (en) 1998-05-13
GB2318994B true GB2318994B (en) 1998-10-14

Family

ID=26306320

Family Applications (2)

Application Number Title Priority Date Filing Date
GB9801905A Expired - Fee Related GB2318994B (en) 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits
GB9801900A Expired - Fee Related GB2318993B (en) 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB9801900A Expired - Fee Related GB2318993B (en) 1995-01-13 1996-01-08 Improvements in or relating to rotary drill bits

Country Status (1)

Country Link
GB (2) GB2318994B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105849354A (en) * 2013-12-10 2016-08-10 哈里伯顿能源服务公司 Vented blank for producing a matrix bit body

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6655234B2 (en) * 2000-01-31 2003-12-02 Baker Hughes Incorporated Method of manufacturing PDC cutter with chambers or passages
US7493965B1 (en) 2006-04-12 2009-02-24 Us Synthetic Corporation Apparatuses and methods relating to cooling a subterranean drill bit and/or at least one cutting element during use

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667756A (en) * 1986-05-23 1987-05-26 Hughes Tool Company-Usa Matrix bit with extended blades
WO1990001384A1 (en) * 1988-08-02 1990-02-22 Astec Developments Limited Investment casting process

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4884477A (en) * 1988-03-31 1989-12-05 Eastman Christensen Company Rotary drill bit with abrasion and erosion resistant facing

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4667756A (en) * 1986-05-23 1987-05-26 Hughes Tool Company-Usa Matrix bit with extended blades
WO1990001384A1 (en) * 1988-08-02 1990-02-22 Astec Developments Limited Investment casting process

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105849354A (en) * 2013-12-10 2016-08-10 哈里伯顿能源服务公司 Vented blank for producing a matrix bit body
CN105849354B (en) * 2013-12-10 2018-04-06 哈里伯顿能源服务公司 Manufacture the ventilation base substrate of matrix bit body

Also Published As

Publication number Publication date
GB2318993A (en) 1998-05-13
GB2318993B (en) 1998-10-14
GB9801900D0 (en) 1998-03-25
GB2318994A (en) 1998-05-13
GB9801905D0 (en) 1998-03-25

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20070108