Patent ID: 9348050
Filing Date: 2016-05-24
CPC Classification: G01V

Claim Text:
1. A method for predicting and removing near-surface noise from seismic data, comprising: acquiring the seismic data by exciting a plurality of encoded sources operating simultaneously so as to produce time-overlapping records that are recorded at a plurality of seismic receivers; using locations of the sources and their respective encoding information to characterize near-surface properties affecting propagation of seismic energy along the surface from each source to each receiver; using a computer to predict time-overlapping noise recorded by a selected receiver; and subtracting or adaptively subtracting, with a computer, the predicted noise from the seismic data measured by the selected receiver to yield data with reduced near-surface noise, wherein the characterizing of near-surface properties comprises using waveform tomography using an iterative model optimization method.