Method for processing dual sensor seismic data to attenuate noise
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United States of America Patent
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May 17, 2005
Grant Date -
Jul 29, 2004
app pub date -
Jan 29, 2003
filing date -
Jan 29, 2003
priority date (Note) -
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Abstract
A method is disclosed for processing seismic data from concurrently recorded co-located pressure sensors and geophones. The seismic data are processed by first determining an upgoing wavefield and a downgoing wavefield in the seismic data. Adaptive subtraction is then applied to at least one of the upgoing wavefield and the downgoing wavefield to remove the noise from the signal. In alternative embodiments, the upgoing wavefield can be used as a noise model for the downgoing wavefield or the downgoing wavefield can be used as a noise model for the upgoing wavefield.
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