Patent ID: 9274239
Filing Date: 2016-03-01
CPC Classification: G01V

Claim Text:
1. A method comprising: receiving sensor acquired data including pressure data representative of at least one pressure measurement of a wavefield and particle motion data representative of at least one particle motion measurement of the wavefield, wherein the wavefield results from energy from at least one energy source, the energy propagating into a subsurface three-dimensional geologic formation; filtering the pressure data and the particle motion data with a plurality of directional filters to provide a plurality of filtered datasets, the filtered datasets being associated with different directional ranges; estimating an angle of incidence for at least one of the directional ranges based at least in part on at least one of the filtered datasets; scaling at least one dataset of the plurality of filtered datasets based at least in part on the angle of incidence estimated for at least one of the directional ranges; and processing the acquired data to determine at least one of an upgoing component of the wavefield and a downgoing component of the wavefield based at least in part on the at least one estimated angle of incidence and based at least in part on a result of the scaling.