Noise attenuation method
AssigneeHalliburton Geophysical Services, Inc.
InventorsCameron B. Wason, David J. Monk, Robert G. McBeath
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Abstract
A method for attenuating coherent and incoherent noise in seismic signal data is provided. Seismic signal data is transformed from a time-space domain using a Radon-transform domain. In the Radon-transform domain, coherent noise is attenuated by muting and incoherent noise is attenuated by diversity stacking. Data remaining in the Radon-transform domain in transformed back to the time-space domain by an inverse Radon transform.
Claims19
A method of attenuating coherent and incoherent noise in data in a first domain comprising the steps of:
- transforming the data using a diversity Radon transform from the first domain to a Radon-transform domain, wherein the transforming step further comprises the steps of:
- (a) determining scaler data;
- (b) multiplying the data by the scaler data to produce scaled data;
- (c) transforming the scaler data and the scaled data into the Radon transform domain;
- and
- (d) dividing the transformed scaled data by the transformed scaler data;
- and
- attenuating the coherent and incoherent noise in data in the Radon-transform domain.
A method of attenuating coherent and incoherent noise in data in a first domain comprising the steps of:
- transforming the data using a diversity Radon transform from the first domain to a Radon-transform domain, wherein the transforming step further comprises the steps of:
- (a) determining scaler data;
- (b) multiplying the data by the scaler data to produce scaled data;
- (c) transforming the scaler data and the scaled data into the Radon transform domain;
- and
- (d) dividing the transformed scaled data by the transformed scaler data;
- attenuating the coherent and incoherent noise in data in the Radon-transform domain;
- and
- transforming the data of the attenuating step back to the first domain.
Dependencies are inferred from the claim text.