FR2353702A1 - ROTATIONAL DRILLING TREPAN - Google Patents

ROTATIONAL DRILLING TREPAN

Info

Publication number
FR2353702A1
FR2353702A1 FR7716479A FR7716479A FR2353702A1 FR 2353702 A1 FR2353702 A1 FR 2353702A1 FR 7716479 A FR7716479 A FR 7716479A FR 7716479 A FR7716479 A FR 7716479A FR 2353702 A1 FR2353702 A1 FR 2353702A1
Authority
FR
France
Prior art keywords
rotational drilling
trepan
drilling trepan
rotational
drilling
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
FR7716479A
Other languages
French (fr)
Other versions
FR2353702B1 (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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of FR2353702A1 publication Critical patent/FR2353702A1/en
Application granted granted Critical
Publication of FR2353702B1 publication Critical patent/FR2353702B1/fr
Granted 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
    • E21B10/58—Chisel-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
    • E21B10/46—Drill bits characterised by wear resisting parts, e.g. diamond 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)
FR7716479A 1976-06-02 1977-05-31 ROTATIONAL DRILLING TREPAN Granted FR2353702A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2279676A GB1546198A (en) 1976-06-02 1976-06-02 Rotary earth boring bit

Publications (2)

Publication Number Publication Date
FR2353702A1 true FR2353702A1 (en) 1977-12-30
FR2353702B1 FR2353702B1 (en) 1983-01-14

Family

ID=10185200

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7716479A Granted FR2353702A1 (en) 1976-06-02 1977-05-31 ROTATIONAL DRILLING TREPAN

Country Status (5)

Country Link
BE (1) BE855238A (en)
CA (1) CA1063095A (en)
DE (1) DE2724547A1 (en)
FR (1) FR2353702A1 (en)
GB (1) GB1546198A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3039633C2 (en) * 1980-10-21 1983-08-18 Christensen, Inc., 84115 Salt Lake City, Utah Rotary drill bits, in particular for deep drilling
GB2185506B (en) * 1986-01-21 1989-03-30 Shell Int Research Rotary drill bit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365941A (en) * 1942-08-31 1944-12-26 Shell Dev Oil well drill bit
DE1054039B (en) * 1958-02-03 1959-04-02 Salzgitter Maschinen Ag Drill bits
FR1265943A (en) * 1960-05-25 1961-07-07 Europ De Turboforage Soc Drill bit for soil drilling
US3153458A (en) * 1962-10-08 1964-10-20 Drilling & Service Inc Blade-type drill bit
US3191698A (en) * 1962-05-17 1965-06-29 Drilling & Service Inc Blade-type drill bit

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2365941A (en) * 1942-08-31 1944-12-26 Shell Dev Oil well drill bit
DE1054039B (en) * 1958-02-03 1959-04-02 Salzgitter Maschinen Ag Drill bits
FR1265943A (en) * 1960-05-25 1961-07-07 Europ De Turboforage Soc Drill bit for soil drilling
US3191698A (en) * 1962-05-17 1965-06-29 Drilling & Service Inc Blade-type drill bit
US3153458A (en) * 1962-10-08 1964-10-20 Drilling & Service Inc Blade-type drill bit

Also Published As

Publication number Publication date
BE855238A (en) 1977-11-30
DE2724547A1 (en) 1977-12-15
FR2353702B1 (en) 1983-01-14
CA1063095A (en) 1979-09-25
GB1546198A (en) 1979-05-16

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Legal Events

Date Code Title Description
ST Notification of lapse