CH556955A - Bohrverfahren. - Google Patents

Bohrverfahren.

Info

Publication number
CH556955A
CH556955A CH414473A CH414473A CH556955A CH 556955 A CH556955 A CH 556955A CH 414473 A CH414473 A CH 414473A CH 414473 A CH414473 A CH 414473A CH 556955 A CH556955 A CH 556955A
Authority
CH
Switzerland
Prior art keywords
drilling method
drilling
Prior art date
Application number
CH414473A
Other languages
English (en)
Original Assignee
Boehler & Co Ag Geb
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 by Boehler & Co Ag Geb filed Critical Boehler & Co Ag Geb
Publication of CH556955A publication Critical patent/CH556955A/de

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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
    • 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
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
    • 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
    • E21B36/00—Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
    • E21B36/001—Cooling arrangements
    • 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

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)
  • Earth Drilling (AREA)
CH414473A 1972-04-08 1973-03-20 Bohrverfahren. CH556955A (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722216920 DE2216920A1 (de) 1972-04-08 1972-04-08 Bohrverfahren

Publications (1)

Publication Number Publication Date
CH556955A true CH556955A (de) 1974-12-13

Family

ID=5841335

Family Applications (1)

Application Number Title Priority Date Filing Date
CH414473A CH556955A (de) 1972-04-08 1973-03-20 Bohrverfahren.

Country Status (5)

Country Link
AT (1) AT314445B (de)
CH (1) CH556955A (de)
DE (1) DE2216920A1 (de)
FR (1) FR2179794B1 (de)
IT (1) IT980449B (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19953819A1 (de) * 1999-11-09 2001-05-10 Zueblin Ag Kombination aus HDI-Verfahren und Bodenvereisung zur Herstellung von Dichtwänden

Also Published As

Publication number Publication date
DE2216920A1 (de) 1973-10-11
FR2179794A1 (de) 1973-11-23
IT980449B (it) 1974-09-30
FR2179794B1 (de) 1974-05-17
AT314445B (de) 1974-04-10

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Legal Events

Date Code Title Description
PL Patent ceased