The effect of space weather on drilling accuracy in the North Sea
Reay, Sarah; Baillie, Orsi; Bowe, Jim; Clarke, Ellen; Lesur, Vincent; Macmillan, Susan. 2004 The effect of space weather on drilling accuracy in the North Sea. [Poster] In: First European Space Weather Week 2004, Noordwijk, The Netherlands, 29 Nov-3 Dec 2004 . (Unpublished)Before downloading, please read NORA policies.
Directional drilling is now a firmly established technique in use within the oil industry. Using magnetic survey instruments to make measurements while drilling (MWD) instead of accurate, but expensive, gyroscopic instruments, can significantly reduce the drilling time and thus the operational costs. Information on the Earth's magnetic field needed to attain the required levels of accuracy is for MWD magnetic surveys. In general, the oil industry requires accuracies of 0.1° in declination(D), 0.05° in inclination (I) and 50nT in total field strength(F).
|Item Type:||Conference or Workshop Item (Poster)|
|Programmes:||BGS Programmes > Seismology and Geomagnetism|
|NORA Subject Terms:||Earth Sciences|
|Date made live:||15 Nov 2012 12:35|
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