DE2115946A1 - - Google Patents

Info

Publication number
DE2115946A1
DE2115946A1 DE19712115946 DE2115946A DE2115946A1 DE 2115946 A1 DE2115946 A1 DE 2115946A1 DE 19712115946 DE19712115946 DE 19712115946 DE 2115946 A DE2115946 A DE 2115946A DE 2115946 A1 DE2115946 A1 DE 2115946A1
Authority
DE
Germany
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.)
Granted
Application number
DE19712115946
Other languages
German (de)
Other versions
DE2115946C (de
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 DE19712115946 priority Critical patent/DE2115946C/de
Priority claimed from DE19712115946 external-priority patent/DE2115946C/de
Publication of DE2115946A1 publication Critical patent/DE2115946A1/de
Application granted granted Critical
Publication of DE2115946C publication Critical patent/DE2115946C/de
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
    • E21B7/00—Special methods or apparatus for drilling
    • 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
    • E21B11/00—Other drilling tools
    • E21B11/02—Boring rams
    • 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
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/20—Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
DE19712115946 1971-04-01 Vorrichtung zum Niederbringen von verrohrten Bohrungen in Fest und Locker gestein Expired DE2115946C (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19712115946 DE2115946C (de) 1971-04-01 Vorrichtung zum Niederbringen von verrohrten Bohrungen in Fest und Locker gestein

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712115946 DE2115946C (de) 1971-04-01 Vorrichtung zum Niederbringen von verrohrten Bohrungen in Fest und Locker gestein

Publications (2)

Publication Number Publication Date
DE2115946A1 true DE2115946A1 (OSRAM) 1972-07-27
DE2115946C DE2115946C (de) 1973-03-01

Family

ID=

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Legal Events

Date Code Title Description
C2 Grant after previous publication (2nd publication)