Induction well logging apparatus with transformer coupled phase sensitive detector
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United States of America Patent
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-
Aug 15, 1989
Issued Date -
N/A
app pub date -
Apr 27, 1988
filing date -
Jun 20, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A well logging apparatus is disclosed which employs slot antennas having a plurality of conductive probes traversing the slot. Also disclosed are a logging apparatus having electrically isolated antenna probes and a logging apparatus with an improved means for generating and applying a reference signal used in phase detection.
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