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ISCWSA Publications

  
ISCWSA Publications

This page list the publications made on behalf of the committee:


SPE 56702, "Accuracy Prediction for Directional MWD." Hugh Williamson - BP Amoco: SPE Annual Technical Conference, Houston, Texas, 3-6 Oct 1999

Notes: This was the original version of the MWD error model and has been updated as SPE 67616 below.


SPE 67616, "Accuracy Prediction for Directional Measurement While Drilling." Hugh S. Williamson: SPEDC Dec 2000, SPE Drilling & Completion Vol 15 No.4 December 2000 page 221-233

Notes: This is an updated version of the MWD error model paper (SPE 56702) and was published in SPE Drilling and Completion and has been designated as SPE 67616.
See MWD Error Model for further corrections to this paper.

SPE 90408, "Prediction of Wellbore Position Accuracy When Surveyed With Gyroscopic Tools." Torgeir Torkildson (Statoil), Stein T. Havarstein (Statoil), John L. Weston (Halliburton), Roger Ekseth (Gyrodata): SPE Annual Technical Conference and Exhibition, Houston, 26-29 Sept 2004

Notes: This paper contains the gyro survey tool error model.


SPE 95611, "Quantification of Depth Accuracy." A. Brooks, SPE, and H. Wilson, SPE, INTEQ; A. Jamieson, SPE, Tech 21; D. McRobbie, SPE, Sperry Drilling Services; and S.G. Holehouse, SPE, Total S.A.: SPE Annual Technical Conference, Dallas, 9-12 October 2005

Notes: This paper summarises depth issues.

IADC/SPE 103734, "The Reliability Problem Related to Directional Survey Data." Roger Ekseth, Kazimir Kovalenko, J.L. Weston (Gyrodata Inc), Torgeir Torkildsen, Erik Nyrnes (Statoil ASA), Andrew Brooks and Harry Wilson (Baker Hughes Inteq): IADC/SPE Asia Pacific Drilling Technology Conference and Exhibition, Bangkok, Thailand, 13-15 November 2006

Notes: This paper lists all sources of error, describes internal data checks that are capable of identifying many of them, and highlights those that are missed and which will therefore require alternative QC measures. Real wellbore survey data are used to illustrate how the use of inadequate QC procedures can lead to invalid survey data being accepted as valid.




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