Page 14 - Basic Well Log Analysis for Geologist

Publisher’s Note:

Because most new geologists come out of college with little understanding of the industry’s primary tool, and because many
experienced geologists use logs only as a means to correlate productive zones (unaware of the many other applications of logging).
we have published this book.
As with the other titles in the AAPG Methods in Geology Series, we intend for this book to become a training standard in both
industry and academia. The book is oriented toward geologists rather than engineers, and can be used in a class environment orasa
self-help program. A set of six case histories in Chapter 8 provides the reader with diverse. yet typical, log-based decisions founded
in both geology and economics,
;
As a special note of thanks, AAPG acknowledges the logging companies and engineers who cooperated with their advice and
examples. Because it is important to offer examples in a book of this nature, specific Schlumberger and Dresser log types are
mentioned by name; this is in no way an endorsement of these two companies, nor does it reflect on the fine logging service
companies whose examples were not used. In the text and examples, the single asterisk (*) indicates a mark of Schlumberger: a
double asterisk (**) indicates a trademark of Dresser Industries, Inc.
Note also, that many service company charts are overprinted with colored ink to highlight an example. This selection is the
author's and the associated service company is not responsible for its accuracy.

AAPG Publications
Tulsa. Oklahoma

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