GB2349405B - Rolling cone bit - Google Patents

Rolling cone bit

Info

Publication number
GB2349405B
GB2349405B GB0019092A GB0019092A GB2349405B GB 2349405 B GB2349405 B GB 2349405B GB 0019092 A GB0019092 A GB 0019092A GB 0019092 A GB0019092 A GB 0019092A GB 2349405 B GB2349405 B GB 2349405B
Authority
GB
United Kingdom
Prior art keywords
cone bit
rolling cone
rolling
bit
cone
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
GB0019092A
Other versions
GB0019092D0 (en
GB2349405A (en
Inventor
Gary Ray Portwood
Gary Edward Garcia
James Carl Minikus
Per Ivar Nese
Dennis Cisneros
Chris Edward Cawthorne
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.)
Smith International Inc
Original Assignee
Smith International Inc
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 US08/630,517 external-priority patent/US6390210B1/en
Application filed by Smith International Inc filed Critical Smith International Inc
Publication of GB0019092D0 publication Critical patent/GB0019092D0/en
Publication of GB2349405A publication Critical patent/GB2349405A/en
Application granted granted Critical
Publication of GB2349405B publication Critical patent/GB2349405B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • E21B10/50—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type
    • E21B10/52—Drill bits characterised by wear resisting parts, e.g. diamond inserts the bit being of roller type with chisel- or button-type 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
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement

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)
GB0019092A 1996-04-10 1997-04-10 Rolling cone bit Expired - Fee Related GB2349405B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/630,517 US6390210B1 (en) 1996-04-10 1996-04-10 Rolling cone bit with gage and off-gage cutter elements positioned to separate sidewall and bottom hole cutting duty
GB9723609A GB2314870B (en) 1996-04-10 1997-04-10 Rolling cone bit

Publications (3)

Publication Number Publication Date
GB0019092D0 GB0019092D0 (en) 2000-09-27
GB2349405A GB2349405A (en) 2000-11-01
GB2349405B true GB2349405B (en) 2000-12-06

Family

ID=26312572

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0019093A Expired - Fee Related GB2349406B (en) 1996-04-10 1997-04-10 Rolling cone bit
GB0019092A Expired - Fee Related GB2349405B (en) 1996-04-10 1997-04-10 Rolling cone bit

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0019093A Expired - Fee Related GB2349406B (en) 1996-04-10 1997-04-10 Rolling cone bit

Country Status (1)

Country Link
GB (2) GB2349406B (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5351768A (en) * 1993-07-08 1994-10-04 Baker Hughes Incorporated Earth-boring bit with improved cutting structure
US5353885A (en) * 1991-05-01 1994-10-11 Smith International, Inc. Rock bit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5353885A (en) * 1991-05-01 1994-10-11 Smith International, Inc. Rock bit
US5351768A (en) * 1993-07-08 1994-10-04 Baker Hughes Incorporated Earth-boring bit with improved cutting structure

Also Published As

Publication number Publication date
GB0019092D0 (en) 2000-09-27
GB0019093D0 (en) 2000-09-27
GB2349405A (en) 2000-11-01
GB2349406A (en) 2000-11-01
GB2349406B (en) 2000-12-06

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Legal Events

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

Effective date: 20150410