FR2220663B1 - - Google Patents

Info

Publication number
FR2220663B1
FR2220663B1 FR7407250A FR7407250A FR2220663B1 FR 2220663 B1 FR2220663 B1 FR 2220663B1 FR 7407250 A FR7407250 A FR 7407250A FR 7407250 A FR7407250 A FR 7407250A FR 2220663 B1 FR2220663 B1 FR 2220663B1
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.)
Expired
Application number
FR7407250A
Other languages
French (fr)
Other versions
FR2220663A1 (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 FR2220663A1 publication Critical patent/FR2220663A1/fr
Application granted granted Critical
Publication of FR2220663B1 publication Critical patent/FR2220663B1/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K9/00—Arc welding or cutting
    • B23K9/02—Seam welding; Backing means; Inserts
    • B23K9/0209—Seam welding; Backing means; Inserts of non-horizontal seams in assembling non-horizontal plates
    • 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
    • E21B10/18—Roller bits characterised by conduits or nozzles for drilling fluids
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Plasma & Fusion (AREA)
  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
FR7407250A 1973-03-05 1974-03-04 Expired FR2220663B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1053073A GB1469524A (en) 1973-03-05 1973-03-05 Rotary bit for hydraulically drilling holes into underground formations

Publications (2)

Publication Number Publication Date
FR2220663A1 FR2220663A1 (en) 1974-10-04
FR2220663B1 true FR2220663B1 (en) 1978-06-16

Family

ID=9969533

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7407250A Expired FR2220663B1 (en) 1973-03-05 1974-03-04

Country Status (7)

Country Link
JP (1) JPS5721637B2 (en)
CA (1) CA994321A (en)
DE (1) DE2410217C2 (en)
FR (1) FR2220663B1 (en)
GB (1) GB1469524A (en)
NL (1) NL177035C (en)
NO (1) NO140640C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4098363A (en) * 1977-04-25 1978-07-04 Christensen, Inc. Diamond drilling bit for soft and medium hard formations
DE9401528U1 (en) * 1994-01-26 1994-05-19 Gartec Geo- Und Umwelttechnik Gmbh, 03253 Doberlug-Kirchhain Drill bits for the production of pilot holes for drillings and the like.
CN109372431A (en) * 2018-11-07 2019-02-22 广州海洋地质调查局 One kind can continuous deflecting jet bit

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1086535A (en) * 1963-09-24 1967-10-11 Gulf Research Development Co Improvements in or relating to the drilling of deep boreholes in the earth
US3402780A (en) * 1965-12-27 1968-09-24 Gulf Research Development Co Hydraulic jet drilling method
US3384192A (en) * 1965-12-27 1968-05-21 Gulf Research Development Co Hydraulic jet bit
US3548960A (en) * 1969-07-10 1970-12-22 Gulf Research Development Co Drill bit having rotating stand-off elements

Also Published As

Publication number Publication date
GB1469524A (en) 1977-04-06
CA994321A (en) 1976-08-03
NO140640B (en) 1979-07-02
JPS49118602A (en) 1974-11-13
NL7402875A (en) 1974-09-09
NO740734L (en) 1974-09-06
NL177035C (en) 1985-07-16
JPS5721637B2 (en) 1982-05-08
FR2220663A1 (en) 1974-10-04
DE2410217A1 (en) 1974-09-12
NO140640C (en) 1979-10-10
DE2410217C2 (en) 1983-11-17

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Legal Events

Date Code Title Description
ST Notification of lapse