Multi-transient EM repeatability experiment over Harding field

A. Ziolkowski, R. Parr, D. Wright, V. Nockles

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution


We present results of a multi-transient electromagnetic (EM) repeability experiment conducted over the North Sea Harding field in 2007 and 2008. The segment of the field under investigation had produced 3 9 MMbbls of oil during this time. Processing of the data included deconvolution for the measured source current and removal of the magnetotelluric noise, which increased the signal-to-noise ratio of the recovered impulse responses by about 20 dB. Small differences in source-receiver separation between the two data sets were corrected using 1/r∧5 scaling. Without any cross-matching of the two data sets the resulting normalised root mean square difference (NRMSD) between the data sets was 3.9%.
Original languageEnglish
Title of host publicationSociety of Petroleum Engineers - 71st European Association of Geoscientists and Engineers Conference and Exhibition 2009
Number of pages5
Publication statusPublished - 1 Jan 2009

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