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This is one of the most hard-to-find, sought-after books in the well interpretation business. It will help the interpreter to get more out of the (literally) hundreds of thousands of electrical logs that were recorded prior to 1958.
The book was first self-published by Hilchie as a handout in his popular log interpretation short course. In addition to the helpful instruction about e-log interpretation, there are numerous charts that are not found anywhere else. Much of the information was taken from logging company training manuals, but the companies had names like Lane Wells, PGAC, and Wellex no longer exist so their training materials have become extremely hard to find.
There was a time when every office had a senior geologist who could read these logs but now the corporate memory has retired. The problem lies in today's high gas prices and the fact that today's geologists are looking at by-passed production. Sometimes the only information we have on older fields is from these old electrical logs.
Many wells in South America were drilled prior to WW II, and old electrical logs are the only data we have there. A company looking at overseas exploration will encounter a lot of these (old well logs).
This legacy publication will help geologists grapple with everyday problems encountered in fields discovered more than 40 years ago. Nothing is new, and the fundamentals are the same.