BE869758A - ROTATIONAL DRILLING TREPAN - Google Patents

ROTATIONAL DRILLING TREPAN

Info

Publication number
BE869758A
BE869758A BE189899A BE189899A BE869758A BE 869758 A BE869758 A BE 869758A BE 189899 A BE189899 A BE 189899A BE 189899 A BE189899 A BE 189899A BE 869758 A BE869758 A BE 869758A
Authority
BE
Belgium
Prior art keywords
rotational drilling
trepan
drilling trepan
rotational
drilling
Prior art date
Application number
BE189899A
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 BE869758A publication Critical patent/BE869758A/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
    • 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
    • E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
    • E21B10/602—Drill bits characterised by conduits or nozzles for drilling fluids the bit being a rotary drag type bit with blades

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)
BE189899A 1977-08-17 1978-08-16 ROTATIONAL DRILLING TREPAN BE869758A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3452777A GB1537000A (en) 1977-08-17 1977-08-17 Rotary drilling bit

Publications (1)

Publication Number Publication Date
BE869758A true BE869758A (en) 1979-02-16

Family

ID=10366748

Family Applications (1)

Application Number Title Priority Date Filing Date
BE189899A BE869758A (en) 1977-08-17 1978-08-16 ROTATIONAL DRILLING TREPAN

Country Status (6)

Country Link
BE (1) BE869758A (en)
CA (1) CA1086299A (en)
DE (1) DE2835660C2 (en)
FR (1) FR2400610A1 (en)
GB (1) GB1537000A (en)
MX (1) MX146381A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113109C2 (en) * 1981-04-01 1983-11-17 Christensen, Inc., 84115 Salt Lake City, Utah Rotary drill bit for deep drilling
GB2148978B (en) * 1983-10-29 1987-01-07 Nl Petroleum Prod Improvements in or relating to rotary drill bits
GB8628168D0 (en) * 1986-11-22 1986-12-31 Nl Petroleum Prod Rotary drill bits
GB9310500D0 (en) * 1993-05-21 1993-07-07 De Beers Ind Diamond Cutting tool
DE9308444U1 (en) * 1993-06-05 1993-08-19 Bilfinger + Berger Bauaktiengesellschaft, 68165 Mannheim Drill bit for drilling in drilling ground with pressurized water

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1582332A (en) * 1923-12-08 1926-04-27 William V Seifert Roller-bits drilling tool
US2371489A (en) * 1943-08-09 1945-03-13 Sam P Daniel Drill bit
US2371490A (en) * 1944-04-10 1945-03-13 Jr Edward B Williams Step-cut drill bit
US3308896A (en) * 1964-08-20 1967-03-14 Homer I Henderson Drilling bit
US3420324A (en) * 1966-04-15 1969-01-07 Herbert J Vesper Air rotary drill bit
US3416617A (en) * 1966-08-22 1968-12-17 Walker Neer Mfg Company Inc Drill bit
DE1483782A1 (en) * 1966-10-26 1969-04-03 Reed Internat Inc Drill bits
US3416618A (en) * 1966-10-28 1968-12-17 Dresser Ind Shrouded bit
US3439757A (en) * 1968-03-12 1969-04-22 Wayland D Elenburg Drilling apparatus
FR2029963A5 (en) * 1969-03-19 1970-10-23 Petroles Cie Francaise
US3709308A (en) * 1970-12-02 1973-01-09 Christensen Diamond Prod Co Diamond drill bits
GB1348694A (en) * 1971-05-10 1974-03-20 Shell Int Research Diamond bit
FR2231845A1 (en) * 1973-06-01 1974-12-27 Shell Int Research Diamond drill bit - with single row of diamonds along each mud channel
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations

Also Published As

Publication number Publication date
FR2400610B1 (en) 1983-05-13
FR2400610A1 (en) 1979-03-16
GB1537000A (en) 1978-12-29
DE2835660C2 (en) 1986-10-16
MX146381A (en) 1982-06-17
DE2835660A1 (en) 1979-03-01
CA1086299A (en) 1980-09-23

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.

Effective date: 19890831