FR2029550A1 - - Google Patents

Info

Publication number
FR2029550A1
FR2029550A1 FR7002760A FR7002760A FR2029550A1 FR 2029550 A1 FR2029550 A1 FR 2029550A1 FR 7002760 A FR7002760 A FR 7002760A FR 7002760 A FR7002760 A FR 7002760A FR 2029550 A1 FR2029550 A1 FR 2029550A1
Authority
FR
France
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
FR7002760A
Other languages
French (fr)
Other versions
FR2029550B1 (cs
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.)
Dresser Industries Inc
Original Assignee
Dresser Industries 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
Application filed by Dresser Industries Inc filed Critical Dresser Industries Inc
Publication of FR2029550A1 publication Critical patent/FR2029550A1/fr
Application granted granted Critical
Publication of FR2029550B1 publication Critical patent/FR2029550B1/fr
Expired 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
    • 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

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)
FR7002760A 1969-01-28 1970-01-27 Expired FR2029550B1 (cs)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79451569A 1969-01-28 1969-01-28

Publications (2)

Publication Number Publication Date
FR2029550A1 true FR2029550A1 (cs) 1970-10-23
FR2029550B1 FR2029550B1 (cs) 1973-12-21

Family

ID=25162862

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7002760A Expired FR2029550B1 (cs) 1969-01-28 1970-01-27

Country Status (3)

Country Link
CA (1) CA938605A (cs)
FR (1) FR2029550B1 (cs)
GB (1) GB1269579A (cs)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425532A1 (fr) * 1978-05-12 1979-12-07 Dresser Ind Trepan pour roches rotatif a pas inegal
FR2677699A1 (fr) * 1991-06-11 1992-12-18 Total Petroles Outil de forage a molettes coniques rotatives.
EP0511547A3 (en) * 1991-05-01 1993-04-14 Smith International, Inc. Rock bit
US6241035B1 (en) 1998-12-07 2001-06-05 Smith International, Inc. Superhard material enhanced inserts for earth-boring bits

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2327443B (en) * 1997-06-30 2001-12-19 Smith International Drill bit, cutting insert and method of manufacture

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038386A (en) * 1935-03-09 1936-04-21 Hughes Tool Co Cutter for well drills
US2148372A (en) * 1936-03-21 1939-02-21 Hughes Tool Co Offset tricone bit
US2774571A (en) * 1954-07-06 1956-12-18 Hughes Tool Co Cone type well drill
US3134447A (en) * 1962-01-31 1964-05-26 Hughes Tool Co Rolling cone rock bit with wraparound spearpoints
US3388757A (en) * 1967-03-23 1968-06-18 Smith Ind International Inc Hardened inserts for drill bits

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2038386A (en) * 1935-03-09 1936-04-21 Hughes Tool Co Cutter for well drills
US2148372A (en) * 1936-03-21 1939-02-21 Hughes Tool Co Offset tricone bit
US2774571A (en) * 1954-07-06 1956-12-18 Hughes Tool Co Cone type well drill
US3134447A (en) * 1962-01-31 1964-05-26 Hughes Tool Co Rolling cone rock bit with wraparound spearpoints
US3388757A (en) * 1967-03-23 1968-06-18 Smith Ind International Inc Hardened inserts for drill bits

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2425532A1 (fr) * 1978-05-12 1979-12-07 Dresser Ind Trepan pour roches rotatif a pas inegal
EP0511547A3 (en) * 1991-05-01 1993-04-14 Smith International, Inc. Rock bit
FR2677699A1 (fr) * 1991-06-11 1992-12-18 Total Petroles Outil de forage a molettes coniques rotatives.
US5282512A (en) * 1991-06-11 1994-02-01 Total Drilling tool with rotating conical rollers
US6241035B1 (en) 1998-12-07 2001-06-05 Smith International, Inc. Superhard material enhanced inserts for earth-boring bits

Also Published As

Publication number Publication date
GB1269579A (en) 1972-04-06
CA938605A (en) 1973-12-18
FR2029550B1 (cs) 1973-12-21

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Legal Events

Date Code Title Description
ST Notification of lapse