China Petroleum & Chemical Corporation
Method and device for enhanced seismic imaging based on one-way wave equation

Abstract:

A method for seismic processing includes steps of receiving seismic data comprising seismic waveforms acquired from a plurality of seismic receivers and a plurality of seismic sources in a subterranean area; generating a plurality of full wavefields at a plurality of corresponding propagation time steps based on a seismic velocity and a density model of the subterranean area; and applying a wavefield filter to the plurality of full wavefields to obtain a plurality of filtered wavefields. Each of the plurality of full wavefields propagates in all directions. On the other hand, each of the plurality of filtered wavefields is attenuated in or opposite to a target direction. The target direction is selected by the user.