Patent ID: 8879355
Filing Date: 2014-11-04
Classification: G01V

Abstract:
1. A method for processing seismic traces to produce an image of a subsurface area, said method comprising: receiving a series of seismic traces related to the subsurface area and recorded by one or more seismic receivers, wherein the series of seismic traces are originally generated by a source; applying a 3 dimensional (3D) phase encoding function to the series of seismic traces to generate a 3D harmonic-source reverse-time migration (h computing a forward wavefield by solving a first wave equation that is modified by the 3D phase encoding function; computing a backward wavefield by solving a second wave equation that is modified by the 3D harmonic-source reverse-time migration (h cross-correlating in a computing device the forward wavefield with the backward wavefield to generate an image of the subsurface.