Detection of subsurface resistivity contrasts with application to location of fluids

  • US 20050237063A1
  • Filed: 05/26/2005
  • Published: 10/27/2005
  • Est. Priority Date: 09/07/2001
  • Status: Abandoned Application
First Claim
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1. A method of mapping subsurface resistivity contrasts comprising making multichannel transient electromagnetic (MTEM) measurements using at least one source, and at least one receiver for measuring the resultant earth response, measuring the system response for the or each source-receiver pair and for each transient;

  • deconvolution of the measured signal for the measured system response from the or each source-receiver pair to recover the corresponding electromagnetic impulse response of the earth, and displaying such impulse responses, or any transformation of such impulse responses, to create a subsurface representation of resistivity contrasts.

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