Method for identifying complex lithologies in a subsurface formation
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United States of America Patent
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Aug 28, 1984
Grant Date -
N/A
app pub date -
Mar 25, 1983
filing date -
Mar 25, 1983
priority date (Note) -
Expired
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Abstract
A method of logging a subsurface formation surrounding a borehole includes the recording of an induced polarization log, the recording of a nuclear log of delayed gamma-rays from the activation of aluminum in the formation, and the recording of a nuclear log of natural gamma-rays from potassium in the formation. The induced polarization log and the nuclear logs are combined to identify the composition of the lithology of the subsurface formation.
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