Patent ID: 8243549

Claim:
A method utilizing at least one computing system for determining properties of a subterranean formation, comprising: obtaining a micro-mechanical model for modeling the subterranean formation as a plurality of particles having low aspect ratio pores therebetween, wherein anisotropy of the subterranean formation is represented by normal compliance and shear compliance that describe deformation of the low aspect ratio pores under an applied stress; determining a ratio of normal compliance over shear compliance of the subterranean formation to obtain an estimated ratio of normal compliance over shear compliance; measuring a first formation parameter of the subterranean formation to obtain a measured first formation parameter based on a sonic measurement technique; with at least one processor of the computing system, determining a second formation parameter based on the micro-mechanical model using the estimated ratio of normal compliance over shear compliance and the measured first formation parameter; and storing the second formation parameter of the subterranean formation, wherein the first formation parameter and the second formation parameter comprises at least one selected from a group consisting of an anisotropy parameter and a stiffness coefficient of the subterranean formation.