FR939401A - Improvements to devices for the study of land crossed by a survey - Google Patents

Improvements to devices for the study of land crossed by a survey

Info

Publication number
FR939401A
FR939401A FR939401DA FR939401A FR 939401 A FR939401 A FR 939401A FR 939401D A FR939401D A FR 939401DA FR 939401 A FR939401 A FR 939401A
Authority
FR
France
Prior art keywords
survey
study
devices
crossed
land
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.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Services Petroliers Schlumberger SA
Original Assignee
Societe de Prospection Electrique Schlumberger SA
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 Societe de Prospection Electrique Schlumberger SA filed Critical Societe de Prospection Electrique Schlumberger SA
Application granted granted Critical
Publication of FR939401A publication Critical patent/FR939401A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP 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)
FR939401D 1946-10-29 1946-10-29 Improvements to devices for the study of land crossed by a survey Expired FR939401A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
FR939401A true FR939401A (en) 1948-11-15

Family

ID=9458535

Family Applications (1)

Application Number Title Priority Date Filing Date
FR939401D Expired FR939401A (en) 1946-10-29 1946-10-29 Improvements to devices for the study of land crossed by a survey

Country Status (4)

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

Cited By (1)

* 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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6856909B2 (en) 2001-03-20 2005-02-15 Shell Oil Company Detecting a boundary in a formation
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

Cited By (1)

* 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

Also Published As

Publication number Publication date
DK70328C (en) 1949-12-12
GB636075A (en) 1950-04-19
DE843235C (en) 1952-07-07

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