DE302115C - - Google Patents

Info

Publication number
DE302115C
DE302115C DENDAT302115D DE302115DA DE302115C DE 302115 C DE302115 C DE 302115C DE NDAT302115 D DENDAT302115 D DE NDAT302115D DE 302115D A DE302115D A DE 302115DA DE 302115 C DE302115 C DE 302115C
Authority
DE
Germany
Prior art keywords
drill
cutting edge
sleeve
chisel
earth
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
DENDAT302115D
Other languages
German (de)
English (en)
Publication of DE302115C publication Critical patent/DE302115C/de
Active 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
    • E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
    • E21B49/02—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by mechanically taking samples of the soil

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Soil Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Drilling Tools (AREA)
DENDAT302115D Active DE302115C (enExample)

Publications (1)

Publication Number Publication Date
DE302115C true DE302115C (enExample)

Family

ID=555938

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT302115D Active DE302115C (enExample)

Country Status (1)

Country Link
DE (1) DE302115C (enExample)

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