A New Contribution to Subsurface Studies by Means of Electrical Measurements in Drill Holes
- C. Schlumberger (Schlumberger Electrical Prospecting Methods) | M. Schlumberger (Schlumberger Electrical Prospecting Methods) | E.G. Leonardon (Schlumberger Electrical Prospecting Methods)
- Document ID
- Society of Petroleum Engineers
- Transactions of the AIME
- Publication Date
- December 1934
- Document Type
- Journal Paper
- 1934. Original copyright American Institute of Mining, Metallurgical, and Petroleum Engineers, Inc. Copyright has expired.
- 5.1.1 Exploration, Development, Structural Geology, 4.3.4 Scale, 2.4.3 Sand/Solids Control, 1.6 Drilling Operations, 4.1.5 Processing Equipment, 4.1.2 Separation and Treating
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Last year the authors presented a paper that discussed the various electrical measurements they perform in drill holes, which they name "electrical coring."1 The object of the present paper is to give a brief account of the points of scientific interest that have been elucidated by further field work and laboratory research, as well as the economic results that have been attained recently.
The practical examples given in this paper are drawn, for the most part, from the field work performed in Russian oil fields during the years 1931 and 1932. This is due to the fact that, thanks to the comprehensive cooperation of the Russian geologists and scientists, the authors are allowed to make public a large amount of recant information. In other countries in which the authors are engaged in similar work, the competition between private companies makes it imperative, for a considerable lapse of time, to avoid publication of the results obtained.
The following points will be discussed successively, under separate headings:
- Electrochemical phenomena in drill holes.
- Stratigraphic correlations and tectonic studies.
- Relations between the productivity of oil horizons and their electrical resistivity.
- Location of coal seams.
- Summary and conclusions.
1 The term "electrical coring" is probably not the best expression that might have been chosen. "Electrical logging," for instance, would be more appropriate. However, "electrical coring" is now more or less in common use in technical literature. therefore the expression is retained.
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