Method of correlating a core sample with its original position in a borehole
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United States of America Patent
Stats
-
Sep 24, 1985
Grant Date -
N/A
app pub date -
Dec 29, 1983
filing date -
Dec 29, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of correlating a core sample with its original position in a borehole. The borehole is logged to determine the bulk density of the formation surrounding the borehole. The core sample is scanned with a computerized axial tomographic scanner (CAT) to determine the attenuation coefficients at a plurality of points in a plurality of cross sections along the core sample. The bulk density log is then compared with the attenuation coefficients to determine the position to which the core sample correlates in the borehole. Alternatively, the borehole can be logged to determine the photoelectric absorption of the formation surrounding the borehole, and this log can be compared with data derived from scanning the core sample with a CAT at two different energy levels.
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