US PATENT SUBCLASS 702 / 7
.~.~.~ By induction or resistivity logging tool

Current as of: June, 1999
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702 /   HD   DATA PROCESSING: MEASURING, CALIBRATING, OR TESTING

1  DF  MEASUREMENT SYSTEM IN A SPECIFIC ENVIRONMENT {6}
2  DF  .~ Earth science {4}
6  DF  .~.~ Well logging or borehole study {5}
7.~.~.~ By induction or resistivity logging tool

DEFINITION

Classification: 702/7

By induction or resistivity logging tool:

(under subclass 6) Subject matter comprising means having transmitter and receiver coils or electrodes arranged for taking measurements, at various depth of the borehole, representing electrical characteristic of the earth formations or planar layers surrounding the borehole (e.g., conductivity, resistivity, dielectric constant).

SEE OR SEARCH THIS CLASS, SUBCLASS:

324, Electricity: Measuring and Testing, subclasses 339+ for induction logging within a borehole.