Method for processing dual sensor seismic data to attenuate...

Details Method for processing dual sensor seismic data to attenuate... Method for processing dual sensor seismic data to attenuate...

2005-05-17

2005-05-17

Lobo, Ian J. (Department: 3662)

Communications, electrical: acoustic wave systems and devices

Seismic prospecting

Offshore prospecting

C702S017000

Reexamination Certificate

active

06894948

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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