BE855238A - ROTATIONAL DRILLING TREPAN - Google Patents

ROTATIONAL DRILLING TREPAN

Info

Publication number
BE855238A
BE855238A BE178073A BE178073A BE855238A BE 855238 A BE855238 A BE 855238A BE 178073 A BE178073 A BE 178073A BE 178073 A BE178073 A BE 178073A BE 855238 A BE855238 A BE 855238A
Authority
BE
Belgium
Prior art keywords
rotational drilling
trepan
drilling trepan
rotational
drilling
Prior art date
Application number
BE178073A
Other languages
French (fr)
Original Assignee
Shell Int Research
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 Int Research filed Critical Shell Int Research
Publication of BE855238A publication Critical patent/BE855238A/en

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)
BE178073A 1976-06-02 1977-05-31 ROTATIONAL DRILLING TREPAN BE855238A (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 (1)

Publication Number Publication Date
BE855238A true BE855238A (en) 1977-11-30

Family

ID=10185200

Family Applications (1)

Application Number Title Priority Date Filing Date
BE178073A BE855238A (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

Family Cites Families (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
FR2353702B1 (en) 1983-01-14
DE2724547A1 (en) 1977-12-15
GB1546198A (en) 1979-05-16
FR2353702A1 (en) 1977-12-30
CA1063095A (en) 1979-09-25

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

Effective date: 19850531