Abstract

We developed a rock physics model to aid exploration of heavy oil in Infra-Cambrian Bilara carbonates of the BikanerNagaur basin. From rock physics modeling, it has been observed that the major contribution to porosity in recrystalized Bilara carbonates is from cracks with aspect ratio ~0.04. In general, heavy oil in Bilara carbonate has minor effect on elastic properties of the rock. But in a clean carbonate, the presence of cracks significantly reduces the elastic moduli of the rock. Thus, identifying regions of high crack density would serve as a plausible model for heavy oil exploration in Bilara carbonates.