DE158887C - - Google Patents

Info

Publication number
DE158887C
DE158887C DENDAT158887D DE158887DA DE158887C DE 158887 C DE158887 C DE 158887C DE NDAT158887 D DENDAT158887 D DE NDAT158887D DE 158887D A DE158887D A DE 158887DA DE 158887 C DE158887 C DE 158887C
Authority
DE
Germany
Prior art keywords
drill
shaft
propellant
drilling
depth
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.)
Active
Application number
DENDAT158887D
Other languages
German (de)
English (en)
Publication of DE158887C publication Critical patent/DE158887C/de
Active legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B44/00Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
    • E21B44/005Below-ground automatic control systems

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (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)
  • Earth Drilling (AREA)
DENDAT158887D Active DE158887C (enExample)

Publications (1)

Publication Number Publication Date
DE158887C true DE158887C (enExample)

Family

ID=425028

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT158887D Active DE158887C (enExample)

Country Status (1)

Country Link
DE (1) DE158887C (enExample)

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