DK70328C - Apparatus for surveying the subsoil using a borehole. - Google Patents

Apparatus for surveying the subsoil using a borehole.

Info

Publication number
DK70328C
DK70328C DK393547AA DK393547A DK70328C DK 70328 C DK70328 C DK 70328C DK 393547A A DK393547A A DK 393547AA DK 393547 A DK393547 A DK 393547A DK 70328 C DK70328 C DK 70328C
Authority
DK
Denmark
Prior art keywords
subsoil
borehole
surveying
Prior art date
Application number
DK393547AA
Other languages
Danish (da)
Original Assignee
Schlumberger Prospection
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 Schlumberger Prospection filed Critical Schlumberger Prospection
Application granted granted Critical
Publication of DK70328C publication Critical patent/DK70328C/en

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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01V—GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V3/00—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation
    • G01V3/18—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging
    • G01V3/20—Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination, deviation specially adapted for well-logging operating with propagation of electric current

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Remote Sensing (AREA)
  • General Physics & Mathematics (AREA)
  • Geophysics (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
DK393547AA 1946-10-29 1947-10-23 Apparatus for surveying the subsoil using a borehole. DK70328C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR939401T 1946-10-29

Publications (1)

Publication Number Publication Date
DK70328C true DK70328C (en) 1949-12-12

Family

ID=9458535

Family Applications (1)

Application Number Title Priority Date Filing Date
DK393547AA DK70328C (en) 1946-10-29 1947-10-23 Apparatus for surveying the subsoil using a borehole.

Country Status (4)

Country Link
DE (1) DE843235C (en)
DK (1) DK70328C (en)
FR (1) FR939401A (en)
GB (1) GB636075A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181339B (en) * 1951-11-20 1964-11-12 Schlumberger Well Surv Corp Device for determining the electrical resistance of earth formations surrounding a borehole
RU2279107C2 (en) 2001-03-20 2006-06-27 Шелл Интернэшнл Рисерч Маатсхаппий Б.В. Detection of boundary in bed
FR2853087A1 (en) * 2003-03-27 2004-10-01 Jerome Bourg Device for locating aquiferous layers comprises galvanometer placed on surface
DE102004035001A1 (en) * 2004-07-20 2006-03-16 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Material e.g. cranial bone, processing cutting device for medical application, has impedance measuring instrument for measuring electrical impedance around cutter head tip, such that remaining thickness of remaining material is measured

Also Published As

Publication number Publication date
DE843235C (en) 1952-07-07
FR939401A (en) 1948-11-15
GB636075A (en) 1950-04-19

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