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The AAPG/Datapages Combined Publications Database

Indonesian Petroleum Association

Abstract


11th Annual Convention Proceedings (Volume 1), 1982
Pages 379-400

Applications of the Electromagnetic Propagation Tool in Indonesia

B. R. Wood, P. Westaway

Abstract

A new log parameter, the propagation time of an electomagnetic wave in the rock, is measured by a new tool, the Electromagnetic Propagation Tool (EPT).

This measurement, in conjunction with an indication of lithology from the Lithodensity Tool (LDT), permits a direct estimation of the volume of water in the invaded zone without prior knowledge of water salinity. Thus the presence or not of any resudual, unflushed hydrocarbon may be inferred. The application of this measurement is particularly interesting in the fresh waters of varying salinity met in Indonesia.

The paper describes the physical principles of the measurement, the interpretation procedures, and reviews examples and applications in wells in Indonesia


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