1887

Abstract

Summary

The heavy oil sandstones are becoming an increasingly important source of new petroleum supply. Heavy oils often have high densities and extremely high viscosities and heavy oil sandstones generally have quite large porosities. Since the viscoelastic behavior of heavy oils contradicts the assumed condition of Gassmann’s theory, the traditional rock physics model based on Gassmann theory becomes inapplicable. In this paper, we present a rock physics model for heavy oil sandstones by combing the Xu-White model and the generalized Gassmann equations. The results show that the rock physics model of heavy oil sandstones can accurately predict the variations of elastic moduli with porosity, clay content and pore shape and estimate S-wave velocity accurately.

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/content/papers/10.3997/2214-4609.201801017
2018-06-11
2024-04-20
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