Acknowledgements

Chapter contributors

Although Professor Angus Jamieson is the main author of this publication with overall responsibility for its content, thanks are given to the following people who contributed to certain chapters;

• Andy McGregor who contributed the write up of the ‘Error model’ chapters
• Jonathan Stigant who contributed the chapter on ‘Geodesy’
• John Weston of Gyrodata on ‘Basic Gyro Theory’
• Steve Grindrod who contributed to the chapter on ‘Magnetic spacing’
• David McRobbie who contributed on ‘Gyro surveying’

This book was compiled by members of the Industry Steering Committee for Wellbore Survey Accuracy (ISCWSA), a Society of Petroleum Engineers (SPE) Technical Section for Wellbore Positioning.

The main author was Angus Jamieson