Methodology for Evaluation of Fluid Saturation of Fractured Reservoirs on the Base of 3D Simulation of Seismic Waves

A detailed study of fractured reservoirs requires the use of all types of wave fields, as each of them displays its different properties the reflected waves are responsible for its correct positioning in space, while scattering ones bring information about its internal fine structure. Therefore, full description of the reservoir need an adaptive procedure for the construction of seismic wave images of different scales. It should be able to image not regular interfaces only, but microheterogeneities like caverns, cracks and fractures as well. In the paper we discuss some new approaches to scattered waves imaging on the base of accurate finite-difference simulation.