GB9802230D0 - Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty - Google Patents

Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty

Info

Publication number
GB9802230D0
GB9802230D0 GBGB9802230.4A GB9802230A GB9802230D0 GB 9802230 D0 GB9802230 D0 GB 9802230D0 GB 9802230 A GB9802230 A GB 9802230A GB 9802230 D0 GB9802230 D0 GB 9802230D0
Authority
GB
United Kingdom
Prior art keywords
enhancements
materials
corner cutting
cutter element
element placement
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.)
Granted
Application number
GBGB9802230.4A
Other versions
GB2319549B (en
GB2319549A (en
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 GB9802230D0 publication Critical patent/GB9802230D0/en
Publication of GB2319549A publication Critical patent/GB2319549A/en
Application granted granted Critical
Publication of GB2319549B publication Critical patent/GB2319549B/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)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Control Of Metal Rolling (AREA)
GB9802230A 1996-04-10 1997-04-10 Earth boring bit Expired - Fee Related GB2319549B (en)

Applications Claiming Priority (3)

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
US08/667,758 US5833020A (en) 1996-04-10 1996-06-21 Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty
PCT/US1997/005948 WO1997038205A1 (en) 1996-04-10 1997-04-10 Rolling cone bit with enhancements in cutter element placement and materials to optimize borehole corner cutting duty

Publications (3)

Publication Number Publication Date
GB9802230D0 true GB9802230D0 (en) 1998-04-01
GB2319549A GB2319549A (en) 1998-05-27
GB2319549B GB2319549B (en) 2000-09-06

Family

ID=27091174

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9802230A Expired - Fee Related GB2319549B (en) 1996-04-10 1997-04-10 Earth boring bit

Country Status (5)

Country Link
AU (1) AU2725997A (en)
CA (1) CA2228156C (en)
GB (1) GB2319549B (en)
SE (1) SE9800295L (en)
WO (1) WO1997038205A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5979575A (en) * 1998-06-25 1999-11-09 Baker Hughes Incorporated Hybrid rock bit
US6345673B1 (en) 1998-11-20 2002-02-12 Smith International, Inc. High offset bits with super-abrasive cutters
GB2378725B (en) * 1998-11-20 2003-06-11 Smith International Earth boring bit
CA2348188C (en) 2000-05-18 2006-08-01 Smith International, Inc. Rolling cone bit with elements fanned along the gage curve

Family Cites Families (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
US5542485A (en) * 1993-07-08 1996-08-06 Baker Hughes Incorporated Earth-boring bit with improved cutting structure

Also Published As

Publication number Publication date
AU2725997A (en) 1997-10-29
SE9800295D0 (en) 1998-02-02
GB2319549B (en) 2000-09-06
GB2319549A (en) 1998-05-27
SE9800295L (en) 1998-02-10
CA2228156A1 (en) 1997-10-16
WO1997038205A1 (en) 1997-10-16
CA2228156C (en) 2006-08-22

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Legal Events

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

Effective date: 20150410