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CA1086299A - Foret rotatif - Google Patents

Foret rotatif

Info

Publication number
CA1086299A
CA1086299A CA306,633A CA306633A CA1086299A CA 1086299 A CA1086299 A CA 1086299A CA 306633 A CA306633 A CA 306633A CA 1086299 A CA1086299 A CA 1086299A
Authority
CA
Canada
Prior art keywords
bit
bit body
drilling
blank
gauge side
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
Application number
CA306,633A
Other languages
English (en)
Inventor
Heino Rohde
Rainer Jurgens
Robijn Feenstra
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 Canada Ltd
Original Assignee
Shell Canada Ltd
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 Canada Ltd filed Critical Shell Canada Ltd
Application granted granted Critical
Publication of CA1086299A publication Critical patent/CA1086299A/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
    • E21B10/46—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)
CA306,633A 1977-08-17 1978-06-30 Foret rotatif Expired CA1086299A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB34527/77 1977-08-17
GB3452777A GB1537000A (en) 1977-08-17 1977-08-17 Rotary drilling bit

Publications (1)

Publication Number Publication Date
CA1086299A true CA1086299A (fr) 1980-09-23

Family

ID=10366748

Family Applications (1)

Application Number Title Priority Date Filing Date
CA306,633A Expired CA1086299A (fr) 1977-08-17 1978-06-30 Foret rotatif

Country Status (6)

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

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3113109C2 (de) * 1981-04-01 1983-11-17 Christensen, Inc., 84115 Salt Lake City, Utah Drehbohrmeißel für Tiefbohrungen
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 (de) * 1993-06-05 1993-08-19 Bilfinger + Berger Bauaktiengesellschaft, 68165 Mannheim Bohrkrone für Bohrungen in Bohrgrund mit drückendem Wasser

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 (de) * 1966-10-26 1969-04-03 Reed Internat Inc Bohrmeissel
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 (fr) * 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
BE869758A (fr) 1979-02-16
FR2400610B1 (fr) 1983-05-13
DE2835660A1 (de) 1979-03-01
GB1537000A (en) 1978-12-29
DE2835660C2 (de) 1986-10-16
FR2400610A1 (fr) 1979-03-16
MX146381A (es) 1982-06-17

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Legal Events

Date Code Title Description
MKEX Expiry