JPS5020522B1 - - Google Patents

Info

Publication number
JPS5020522B1
JPS5020522B1 JP44050423A JP5042369A JPS5020522B1 JP S5020522 B1 JPS5020522 B1 JP S5020522B1 JP 44050423 A JP44050423 A JP 44050423A JP 5042369 A JP5042369 A JP 5042369A JP S5020522 B1 JPS5020522 B1 JP S5020522B1
Authority
JP
Japan
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.)
Pending
Application number
JP44050423A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP44050423A priority Critical patent/JPS5020522B1/ja
Priority to US44731A priority patent/US3661219A/en
Priority to FR707023407A priority patent/FR2047983B1/fr
Priority to SE7008891A priority patent/SE393155B/sv
Publication of JPS5020522B1 publication Critical patent/JPS5020522B1/ja
Pending 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
    • E21B10/64—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe
    • E21B10/66—Drill bits characterised by the whole or part thereof being insertable into or removable from the borehole without withdrawing the drilling pipe the cutting element movable through the drilling pipe and laterally shiftable

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)
JP44050423A 1969-06-27 1969-06-27 Pending JPS5020522B1 (sv)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP44050423A JPS5020522B1 (sv) 1969-06-27 1969-06-27
US44731A US3661219A (en) 1969-06-27 1970-06-09 Drilling system
FR707023407A FR2047983B1 (sv) 1969-06-27 1970-06-24
SE7008891A SE393155B (sv) 1969-06-27 1970-06-26 Borranordning

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP44050423A JPS5020522B1 (sv) 1969-06-27 1969-06-27

Publications (1)

Publication Number Publication Date
JPS5020522B1 true JPS5020522B1 (sv) 1975-07-16

Family

ID=12858440

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44050423A Pending JPS5020522B1 (sv) 1969-06-27 1969-06-27

Country Status (4)

Country Link
US (1) US3661219A (sv)
JP (1) JPS5020522B1 (sv)
FR (1) FR2047983B1 (sv)
SE (1) SE393155B (sv)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5367438U (sv) * 1976-11-09 1978-06-06
JPS57179946U (sv) * 1981-05-09 1982-11-15
JPS57199451U (sv) * 1981-05-09 1982-12-18

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4497382A (en) * 1983-03-24 1985-02-05 Komitet Po Goelogica Retractable core drill bit
FR2575785B1 (fr) * 1985-01-04 1987-12-11 Rech Geolog Miniere Appareil de forage equipe d'un dispositif permettant le changement de l'outil de forage sans avoir a remonter le train de tiges et comportant un dispositif d'alesage expansible
US5460231A (en) * 1994-08-19 1995-10-24 Collins; James S. Device and method for augering a conical hole in solid media

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US473907A (en) * 1892-05-03 Milan c
US1766253A (en) * 1922-09-08 1930-06-24 Kennedye Corp Drilling tool
US2239996A (en) * 1936-05-25 1941-04-29 Chappell Drilling Equipment Co Drilling apparatus
US2771275A (en) * 1952-01-29 1956-11-20 Exxon Research Engineering Co Hard formation retractable drill bit
US3050142A (en) * 1959-07-06 1962-08-21 Kammerer Retrievable drilling apparatus for well bores
US3050143A (en) * 1959-07-06 1962-08-21 Jr Archer W Kammerer Retrievable well bore drilling apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5367438U (sv) * 1976-11-09 1978-06-06
JPS57179946U (sv) * 1981-05-09 1982-11-15
JPS57199451U (sv) * 1981-05-09 1982-12-18

Also Published As

Publication number Publication date
FR2047983B1 (sv) 1973-05-25
FR2047983A1 (sv) 1971-03-19
US3661219A (en) 1972-05-09
SE393155B (sv) 1977-05-02

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