GB2330605B - Cutter element adapted to withstand tensile stress - Google Patents

Cutter element adapted to withstand tensile stress

Info

Publication number
GB2330605B
GB2330605B GB9826997A GB9826997A GB2330605B GB 2330605 B GB2330605 B GB 2330605B GB 9826997 A GB9826997 A GB 9826997A GB 9826997 A GB9826997 A GB 9826997A GB 2330605 B GB2330605 B GB 2330605B
Authority
GB
United Kingdom
Prior art keywords
tensile stress
element adapted
cutter element
withstand tensile
withstand
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
GB9826997A
Other versions
GB9826997D0 (en
GB2330605A (en
Inventor
Gary Ray Portwood
Scott D Mcdonough
Dennis Cisneros
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 US08/668,109 external-priority patent/US5813485A/en
Application filed by Smith International Inc filed Critical Smith International Inc
Publication of GB9826997D0 publication Critical patent/GB9826997D0/en
Publication of GB2330605A publication Critical patent/GB2330605A/en
Application granted granted Critical
Publication of GB2330605B publication Critical patent/GB2330605B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • E21B10/08—Roller bits
    • E21B10/16—Roller bits characterised by tooth form or arrangement
    • 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
    • E21B10/50—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

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)
  • Excavating Of Shafts Or Tunnels (AREA)
GB9826997A 1996-06-21 1997-06-20 Cutter element adapted to withstand tensile stress Expired - Fee Related GB2330605B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/668,109 US5813485A (en) 1996-06-21 1996-06-21 Cutter element adapted to withstand tensile stress
US08/833,366 US5915486A (en) 1996-06-21 1997-04-04 Cutter element adapted to withstand tensile stress
PCT/US1997/010778 WO1997048874A2 (en) 1996-06-21 1997-06-20 Cutter element adapted to withstand tensile stress

Publications (3)

Publication Number Publication Date
GB9826997D0 GB9826997D0 (en) 1999-02-03
GB2330605A GB2330605A (en) 1999-04-28
GB2330605B true GB2330605B (en) 2000-08-16

Family

ID=27099840

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9826997A Expired - Fee Related GB2330605B (en) 1996-06-21 1997-06-20 Cutter element adapted to withstand tensile stress

Country Status (4)

Country Link
AU (1) AU3497597A (en)
CA (1) CA2257932C (en)
GB (1) GB2330605B (en)
WO (1) WO1997048874A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7743855B2 (en) * 2006-09-05 2010-06-29 Smith International, Inc. Drill bit with cutter element having multifaceted, slanted top cutting surface
US7730976B2 (en) * 2007-10-31 2010-06-08 Baker Hughes Incorporated Impregnated rotary drag bit and related methods

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058177A (en) * 1976-03-29 1977-11-15 Dresser Industries, Inc. Asymmetric gage insert for an earth boring apparatus
US4334586A (en) * 1980-06-05 1982-06-15 Reed Rock Bit Company Inserts for drilling bits
US5201376A (en) * 1992-04-22 1993-04-13 Dresser Industries, Inc. Rock bit with improved gage insert
US5322138A (en) * 1991-08-14 1994-06-21 Smith International, Inc. Chisel insert for rock bits
US5421423A (en) * 1994-03-22 1995-06-06 Dresser Industries, Inc. Rotary cone drill bit with improved cutter insert
US5592995A (en) * 1995-06-06 1997-01-14 Baker Hughes Incorporated Earth-boring bit having shear-cutting heel elements

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058177A (en) * 1976-03-29 1977-11-15 Dresser Industries, Inc. Asymmetric gage insert for an earth boring apparatus
US4334586A (en) * 1980-06-05 1982-06-15 Reed Rock Bit Company Inserts for drilling bits
US5322138A (en) * 1991-08-14 1994-06-21 Smith International, Inc. Chisel insert for rock bits
US5201376A (en) * 1992-04-22 1993-04-13 Dresser Industries, Inc. Rock bit with improved gage insert
US5421423A (en) * 1994-03-22 1995-06-06 Dresser Industries, Inc. Rotary cone drill bit with improved cutter insert
US5592995A (en) * 1995-06-06 1997-01-14 Baker Hughes Incorporated Earth-boring bit having shear-cutting heel elements

Also Published As

Publication number Publication date
AU3497597A (en) 1998-01-07
CA2257932A1 (en) 1997-12-24
GB9826997D0 (en) 1999-02-03
WO1997048874A3 (en) 1998-02-05
CA2257932C (en) 2006-01-24
GB2330605A (en) 1999-04-28
WO1997048874A2 (en) 1997-12-24

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Legal Events

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

Effective date: 20150620