| 摘要 |
Disclosed are methods and apparatus for noise removal from seismic data, In one embodiment, a seismic data set comprising a plurality of traces is received, and noise metrics for the seismic data set are computed using a set of time and depth windows. The seismic data set is scanned to determine a first set of groups. 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. Noise attenuation is applied to the traces in the first set of groups. Other embodiments, aspects, and features are also disclosed. Receiving seismic data set Computing coherent and incoherent noise metrics for the seismic data set Identify traces which have either or both noise metrics outside pre-defined specifications Find first set of groups of out-of-specification traces which are larger than a threshold size Apply noise attenuation procedure to the traces in the groups Output noise-reduced seismic data set |
