BE445231A - - Google Patents

Info

Publication number
BE445231A
BE445231A BE445231DA BE445231A BE 445231 A BE445231 A BE 445231A BE 445231D A BE445231D A BE 445231DA BE 445231 A BE445231 A BE 445231A
Authority
BE
Belgium
Prior art keywords
box
tube
drive member
compartments
fixed
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE445231A publication Critical patent/BE445231A/fr

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
    • E21B7/00Special methods or apparatus for drilling
    • E21B7/20Driving or forcing casings or pipes into boreholes, e.g. sinking; Simultaneously drilling and casing boreholes

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)
  • Revetment (AREA)
BE445231D BE445231A (cs)

Publications (1)

Publication Number Publication Date
BE445231A true BE445231A (cs)

Family

ID=101671

Family Applications (1)

Application Number Title Priority Date Filing Date
BE445231D BE445231A (cs)

Country Status (1)

Country Link
BE (1) BE445231A (cs)

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