Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 19, 2008
Patent Application Number
11360303
Date Filed
February 23, 2006
Patent Citations Received
Patent Primary Examiner
Patent abstract
Method for removing effects of shallow resistivity structures in electromagnetic survey data to produce a low frequency resistivity anomaly map, or alternatively imaging resistivity structures at their correct depth levels. The method involves solving Maxwell's electromagnetic field equations by either forward modeling or inversion, and requires at least two survey data sets, one taken at the source frequency selected to penetrate to a target depth, the other a higher frequency able to penetrate only shallow depths.
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