Have you ever wonder how the directional tool works, why we need GYRO tool, what magnetic interference is ,etc? It is very difficult to find the answer even though we have internet. Recently, my friend shares me this excellent book, Introduction to Wellbore Positioning by Prof Angus Jamieson at University of the Highlands & Islands. This is one of the best books regarding wellbore positioning. In the book, not only does it have the text, but also contains tons of picture which will help learners to get more understanding of this topic.
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