1965 Paper I-F

TEMPERATURE LOGGING

by

D. R. Peacock WORTH WELL SURVEYS, INC.

ABSTRACT

The use of new, highly-sensitive and stable temperature logging systems has produced data which correlates with earlier theoretical predictions and has stimulated the application of temperature logging into areas other than the conventional cement top location.

Innovations lie chiefly in the concepts of combining gradient with differential logs to get different views of a given temperature anomaly. Also, the techniques of changing well conditions during a series of logs are effective in creating temperature anomalies which can reveal considerable information about downhole conditions.

These techniques are particularly effective in producing injectivity profiles in secondary recovery programs and in evaluating fracturing operations.