induction log

induction log

[in′dək·shən ‚läg]
(engineering)
An electric log of the conductivity of rock with depth obtained by lowering into an uncased borehole a generating coil that induces eddy currents on the rocks and these are detected by a receiver coil.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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Nowadays the conventional tool for characterizing these geophysical properties is well logging, and some logs such as gamma ray (GR), dual induction log, formation density (DEN) compensated, deep resistivity (REID), self-potential (SP), and sonic log (DT) are usually recorded.
Breitling ran a density-neutron log, microlog and an induction log and decided to run pipe based in analysis by Breitling's engineers and geologists.