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Marine CSEM Sounding: Moving Beyond the Image
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, EGM 2007 International Workshop, Apr 2007, cp-166-00059
Abstract
Up until now the CSEM method has been used primarily in an exploration context to derive the resistivity within formations, and to provide an indication of the likelihood that they are hydrocarbon bearing. Inversion and imaging approaches can be used to derive cross sections or volumes of resistivity, which can be analysed in conjunction with seismic or other geophysical data. Whilst information provided in this way is extremely valuable, it is possible to go further in the analysis of CSEM data, by using the measured values to examine the underlying rock and fluid properties. Combining this information with other information derived from surface seismic or well log measurments can reduce ambiguities inherent in the analysis of either data type alone.