Patent ID: 7337064
Filing Date: 2008-02-26
Classification: G01V

Abstract:
1. A method of analyzing results from an electromagnetic survey of an area that is thought or known to contain a subterranean hydrocarbon reservoir, comprising: providing a first survey data set obtained from a vertical electric dipole (VED) source; providing a second survey data set obtained from a vertical magnetic dipole (VMD) source; generating a first normalization data set specific to the first survey data set; generating a second normalization data set specific to the second survey data set; combining the first survey data set and first normalization data set to obtain a first results data set that represents a difference between the first survey data set and the first normalization data set; combining the second survey data set and second normalization data set to obtain a second results data set that represents a difference between the second survey data set and the second normalization data set; and comparing the first and second results data sets to provide a determination if hydrocarbon is present.