System and method for electromagnetic wavefield resolution
First Claim
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1. A method of determining the nature of strata beneath a seabed comprising the steps of:
- applying an electromagnetic (EM) wavefield to the strata;
detecting an EM wavefield response;
processing the wavefield by resolving the wavefield to produce upgoing and downgoing components, sea surface reflections and refractions being attenuated from the wavefield; and
analyzing the upgoing component to derive the nature of the strata.
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Abstract
A method processing an electromagnetic wavefield response in a seabed logging operation. The wavefield is resolved into upgoing- and downgoing components. The downgoing component represents reflections from the sea surface while the upgoing component represents reflections and refractions from subterranean strata. The upgoing component is then subjected to analysis.
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Citations
16 Claims
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1. A method of determining the nature of strata beneath a seabed comprising the steps of:
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applying an electromagnetic (EM) wavefield to the strata; detecting an EM wavefield response; processing the wavefield by resolving the wavefield to produce upgoing and downgoing components, sea surface reflections and refractions being attenuated from the wavefield; and analyzing the upgoing component to derive the nature of the strata. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification