Log Interpretation Case Studies
George Asquith, Daniel Krygowski, Steven Henderson, Neil Hurley, 2004. "Log Interpretation Case Studies", Basic well log analysis, George Asquith, Daniel Krygowski, Steven Henderson, Neil Hurley
Download citation file:
A major hurdle for geologists is learning how the theory and the many formulas of log interpretation are translated into practice. The learning process is slow, and takes place only after a good deal of repetitive effort is supported by actual experience with logs. There are absolutely no shortcuts. Memorizing log patterns and curve values just doesn’t work, and can, in fact, prove disastrous. However, to assist the process of changing what's done into how it's done, case studies can be an invaluable asset. The ones presented here cover several geographical areas, geologic ages, lithologies and log packages. This variety is not necessarily a classic representation of any of the categories. The reader will need to engage his or her intellect in finding appropriate solutions for each problem, and will also need to apply material already learned from thorough study of the preceding text.
Figures & Tables
Basic well log analysis
This publication is a general introduction to common openhole logging measurements, both wire line and MWD/LWD, and the interpretation of those measurements to determine the traditional analytical goals of porosity, fluid saturation, and lithology/mineralogy. It is arranged by the interpretation goals of the data, rather than by the underlying physics of the measurements. The appendix files contain digital versions of the data from the case studies, a summary guide to the measurements and their interpretation, and a simple spreadsheet containing some of the more common interpretation algorithms. This Second Edition of Basic Well Log Analysis delivers a great impact on training and self-training along with superior workbook exercises, newer measurements, borehole imaging, and nuclear magnetic resonance in separate chapters, all directed to provide a guide through the lengthy and sometimes ambiguous terminology of well logging and petrophysics. It provides readers with interpretation examples (and solutions) so that the techniques described here can be practiced.