On the relative importance of global and squirt flow in cracked porous media

Abstract

SummaryA unified theory of global and squirt flow in cracked porous media was developed several years ago on the basis of a combination of the dynamic T-matrix approach to rock physics. The theory has been successfully used to model ultrasonic velocity and attenuation anisotropy measurements in real rocks under pressure. At the same time, it was recently pointed out that this theory, which contain an established theory of interconnected cracks as a special case contains an error related to fluid mass conservation. The error was recently corrected, and this paper represents an attempt to perform a systematic study of the

Dynamic bulk and shear moduli due to grain-scale local fluid flow in fluid-saturated cracked poroelastic rocks: Theoretical model

“…In the recent decade, Jakobsen and his collaborators published a series of papers (Jakobsen et al, 2003;Jakobsen, 2004;Jakobsen and Chapman, 2009;Ali and Jakobsen, 2014) to quantify the SF dispersion by using T-matrix approach. Their model allows for non-dilute pores and introduces an independent constant, i.e.…”