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REVISION 10 (2026)
Copyright notice
This eBook is provided, and may be used, free of charge. Selling this eBook in its entirety, or extracts from it, is prohibited. Obtain permission from the author before redistribution.
In all cases this copyright notice and details of the authors and contributors (pages 1 & 2) must remain intact.
Permission is granted to reproduce this eBook for personal, training and educational use, but any extract should be clearly attributed to the author giving the name and version of this publication.
Commercial copying, hiring, lending of this eBook for profit is prohibited.
At all times, ownership of the contents of this publication remains with Copyright © 2026 SPE Wellbore Positioning Technical Section (WPTS) and Industry Steering Committee on Wellbore Survey Accuracy (ISCWSA), Education Sub-Committee
Citation
SPE WPTS and ISCWSA eBook Revision 10 (2026) at https://www.iscwsa.net/ebooks/
Revisions
The authors of this publication are fully aware the nature of the subject matter covered will develop over time as new techniques arise or current practices and technologies are updated. It is, therefore, the intension of the authors to regularly revise this eBook to reflect these changes and keep this publication current and as complete as possible.
Anyone who has expertise, techniques or updates they wish to submit to the author for assessment for inclusion in the next revision should email the data in the first instance to:
Angus.Jamieson@hpinc.com and MElGizawy@slb.com
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