DE2502861A1 - - Google Patents

Info

Publication number
DE2502861A1
DE2502861A1 DE19752502861 DE2502861A DE2502861A1 DE 2502861 A1 DE2502861 A1 DE 2502861A1 DE 19752502861 DE19752502861 DE 19752502861 DE 2502861 A DE2502861 A DE 2502861A DE 2502861 A1 DE2502861 A1 DE 2502861A1
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
DE19752502861
Other languages
German (de)
Other versions
DE2502861B1 (de
DE2502861C2 (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 DE19752502861 priority Critical patent/DE2502861C2/de
Priority claimed from DE19752502861 external-priority patent/DE2502861C2/de
Priority to AT881875A priority patent/AT344104B/de
Publication of DE2502861B1 publication Critical patent/DE2502861B1/de
Publication of DE2502861A1 publication Critical patent/DE2502861A1/de
Application granted granted Critical
Publication of DE2502861C2 publication Critical patent/DE2502861C2/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
    • E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
    • E21B7/026—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting having auxiliary platforms, e.g. for observation purposes
    • 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
    • E21B3/00—Rotary drilling
    • E21B3/02—Surface drives for rotary drilling
    • E21B3/025—Surface drives for rotary drilling with a to-and-fro rotation of the tool

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)
  • Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
DE19752502861 1975-01-24 1975-01-24 Vorrichtung zum Niederbringen von Bohrrohren Expired DE2502861C2 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE19752502861 DE2502861C2 (de) 1975-01-24 Vorrichtung zum Niederbringen von Bohrrohren
AT881875A AT344104B (de) 1975-01-24 1975-11-19 Einrichtung zum herstellen von verrohrten bohrlochern

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752502861 DE2502861C2 (de) 1975-01-24 Vorrichtung zum Niederbringen von Bohrrohren

Publications (3)

Publication Number Publication Date
DE2502861B1 DE2502861B1 (de) 1975-12-18
DE2502861A1 true DE2502861A1 (en:Method) 1975-12-18
DE2502861C2 DE2502861C2 (de) 1976-09-16

Family

ID=

Also Published As

Publication number Publication date
DE2502861B1 (de) 1975-12-18
AT344104B (de) 1978-07-10
ATA881875A (de) 1977-10-15

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Legal Events

Date Code Title Description
E77 Valid patent as to the heymanns-index 1977