Coarse-scale characterization of seismic wave attenuation based on viscoelastic model

Abstract

In rock physical modeling, WIGED mechanism is selected to guide and calibrate pore fluid modeling in reservoirs with low porosity and low permeability, based on the occurrence characteristics of micro-nano pore fluid in rocks in the target area. The viscoelastic model with fewer parameters was selected to represent the petrophysical model with more parameters, which can avoid the disadvantages of too many parameters and unavailable of the petrophysical model, so as to achieve the purpose of scale coarsing of the model. Model test and field data application demonstrate the feasibility and accuracy of this strategy.