FR742430A - - Google Patents

Info

Publication number
FR742430A
FR742430A FR742430DA FR742430A FR 742430 A FR742430 A FR 742430A FR 742430D A FR742430D A FR 742430DA FR 742430 A FR742430 A FR 742430A
Authority
FR
France
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.)
Expired
Application number
Other languages
French (fr)
Publication date
Application granted granted Critical
Publication of FR742430A publication Critical patent/FR742430A/fr
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
    • E21B47/00—Survey of boreholes or wells
    • E21B47/02—Determining slope or direction
    • E21B47/022—Determining slope or direction of the borehole, e.g. using geomagnetism
    • E21B47/0236—Determining slope or direction of the borehole, e.g. using geomagnetism using a pendulum

Landscapes

  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Geophysics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
FR742430D Expired FR742430A (cg-RX-API-DMAC7.html)

Publications (1)

Publication Number Publication Date
FR742430A true FR742430A (cg-RX-API-DMAC7.html) 1933-03-07

Family

ID=1546834

Family Applications (1)

Application Number Title Priority Date Filing Date
FR742430D Expired FR742430A (cg-RX-API-DMAC7.html)

Country Status (1)

Country Link
FR (1) FR742430A (cg-RX-API-DMAC7.html)

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