Patent ID: 9250340
Filing Date: 2016-02-02
CPC Classification: G01V

Claim Text:
1. A computer-implemented method for automated noise removal from seismic data, the method comprising: receiving a seismic data set comprising a plurality of traces obtained from seismic measurements; computing noise metrics for the seismic data set using a set of time and depth windows; scanning the seismic data set to determine a first set of groups, wherein each group in the first set comprises at least a first minimum number of neighboring traces for which at least one of the noise metrics is outside a predefined specification; and applying noise attenuation to the traces in the first set of groups; computing the noise metrics for each noise-attenuated trace in the first set of groups; scanning the noise-attenuated traces in the first set of groups to determine a second set of groups, wherein each group in the second set comprises a grouping of at least a second minimum number of neighboring noise-attenuated traces for which at least one of the noise metrics is outside the predefined specification; and applying a further noise-reducing process to the noise-attenuated traces in the second set of groups.