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The AAPG/Datapages Combined Publications Database

AAPG Bulletin


Volume: 16 (1932)

Issue: 12. (December)

First Page: 1260

Last Page: 1336

Title: Advances in Technique and Application of Previous HitResistivityNext Hit and Potential-Drop-Ratio Methods in Oil Prospecting

Author(s): C. A. Heiland (2)


The successes which have been obtained with electrical methods of prospecting in detecting metallic ore bodies have led to repeated attempts to use them also in oil prospecting, both in structural work and in locating the oil itself. These attempts have not met with as much success as the application of electrical methods to the location of ore bodies; however, the interest in the possibilities of electrical prospecting as applied in oil work has been aroused again of late, due to the perfection of the Previous HitresistivityNext Hit and potential-drop-ratio method in regard to the determination of the depth to geologic bodies.

The object of the writer is to give a summary of the whole field of the Previous HitresistivityNext Hit methods, with particular reference to the recent developments. The factors affecting the Previous HitresistivityNext Hit of rocks, and methods for the determination of resistivities of rocks and formations are described. Then follows a description of the various surface-potential methods. First, the Previous HitresistivityNext Hit methods proper are discussed, with reference to electrode arrangement, apparatus, and methods of interpretation used. Second, the potential-drop-ratio methods are treated, also with regard to the electrode arrangements, apparatus, and methods of interpretation. The opinions of various authors are discussed who have expressed their views about the possibilities of locating oil directly by electrical methods, and exa ples are presented of results which have been obtained thus far with Previous HitresistivityTop methods, both in structural prospecting and in attempting to locate the oil directly.

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