Attenuating seismic interference noise using a dual sensor recording system
First Claim
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1. A method for attenuating noise in marine seismic signals, comprising:
- cross ghosting pressure responsive marine seismic signals acquired by deploying pressure responsive sensors in a body of water, and contemporaneously acquired motion responsive marine seismic signals acquired by deploying particle motion responsive sensors in a body of water, the signals acquired in response to actuation of a seismic energy source in the body of water;
determining a difference between the cross ghosted signals; and
using the difference to attenuate substantially horizontally propagating noise in at least one of the pressure responsive signals and the motion responsive signals.
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Abstract
A method for attenuating noise in marine seismic signals includes cross ghosting pressure responsive marine seismic signals and contemporaneously acquired motion responsive marine seismic signals. A difference is determined between the cross ghosted signals. The difference is used to attenuate noise in at least one of the pressure responsive signals and the motion responsive signals.
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Citations
16 Claims
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1. A method for attenuating noise in marine seismic signals, comprising:
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cross ghosting pressure responsive marine seismic signals acquired by deploying pressure responsive sensors in a body of water, and contemporaneously acquired motion responsive marine seismic signals acquired by deploying particle motion responsive sensors in a body of water, the signals acquired in response to actuation of a seismic energy source in the body of water; determining a difference between the cross ghosted signals; and using the difference to attenuate substantially horizontally propagating noise in at least one of the pressure responsive signals and the motion responsive signals. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for seismic surveying, comprising:
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towing a seismic energy source and a plurality of pressure responsive seismic sensors and motion responsive seismic sensors in a body of water; actuating the seismic energy source at selected times; recording signals detected by the pressure responsive sensors and the motion responsive sensors; cross ghosting the pressure responsive signals and the motion responsive signals; determining a difference between the cross ghosted signals; and using the difference to attenuate noise propagating substantially horizontally in the body of water in at least one of the pressure responsive signals and the motion responsive signals. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification