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GB2380501B - Flat profile cutting structure for roller cone drill bits - Google Patents

Flat profile cutting structure for roller cone drill bits

Info

Publication number
GB2380501B
GB2380501B GB0215415A GB0215415A GB2380501B GB 2380501 B GB2380501 B GB 2380501B GB 0215415 A GB0215415 A GB 0215415A GB 0215415 A GB0215415 A GB 0215415A GB 2380501 B GB2380501 B GB 2380501B
Authority
GB
United Kingdom
Prior art keywords
drill bits
cutting structure
roller cone
flat profile
cone drill
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
GB0215415A
Other versions
GB2380501A (en
GB0215415D0 (en
Inventor
Amardeep Singh
Sujian Huang
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 US09/593,690 external-priority patent/US6604587B1/en
Application filed by Smith International Inc filed Critical Smith International Inc
Publication of GB0215415D0 publication Critical patent/GB0215415D0/en
Publication of GB2380501A publication Critical patent/GB2380501A/en
Application granted granted Critical
Publication of GB2380501B publication Critical patent/GB2380501B/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
    • E21B10/08—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)
GB0215415A 2000-06-14 2001-06-04 Flat profile cutting structure for roller cone drill bits Expired - Fee Related GB2380501B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/593,690 US6604587B1 (en) 2000-06-14 2000-06-14 Flat profile cutting structure for roller cone drill bits
GB0113536A GB2363409B (en) 2000-06-14 2001-06-04 Flat profile cutting structure for roller cone drill bits

Publications (3)

Publication Number Publication Date
GB0215415D0 GB0215415D0 (en) 2002-08-14
GB2380501A GB2380501A (en) 2003-04-09
GB2380501B true GB2380501B (en) 2003-08-13

Family

ID=26246149

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0215415A Expired - Fee Related GB2380501B (en) 2000-06-14 2001-06-04 Flat profile cutting structure for roller cone drill bits

Country Status (1)

Country Link
GB (1) GB2380501B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807190A (en) * 1956-10-01 1959-01-07 Unternehmungen Der Eisenund St Rotary cutter for drilling earth and rock
GB1088860A (en) * 1964-12-23 1967-10-25 Ts K Bjuro Double-roller bit
US4231438A (en) * 1978-10-10 1980-11-04 Smith International, Inc. Straight hole insert drill bit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807190A (en) * 1956-10-01 1959-01-07 Unternehmungen Der Eisenund St Rotary cutter for drilling earth and rock
GB1088860A (en) * 1964-12-23 1967-10-25 Ts K Bjuro Double-roller bit
US4231438A (en) * 1978-10-10 1980-11-04 Smith International, Inc. Straight hole insert drill bit

Also Published As

Publication number Publication date
GB2380501A (en) 2003-04-09
GB0215415D0 (en) 2002-08-14

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Legal Events

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

Effective date: 20110604