Computations of Porosity and Permeability of Sparic Carbonate Using Multi-scale Ct Images
نویسنده
چکیده
The determination of fluid flow properties in carbonate rocks is strongly affected by heterogeneity. This paper presents a case study that describes the heterogeneity of a carbonate sample. Then, through multi-scale x-ray CT imaging, core panoscopy, a base flow unit in the sample was selected for property computation. Volumes scanned at different resolutions and fields of view that are spatially registered are presented. Using digital rock physics the proper transport properties of the core were determined. The flow unit is a bio-sparic portion of the sample that fills the spaces between large solid carbonate fragments. High-resolution micro-CT imaging provided a digital sample which was the basis for calculating porosity, permeability, and relative permeability for the sample using the Lattice Boltzmann fluid dynamics method. The resulting digital rock physics computations were in good agreement with the laboratory measurements that were released and made available for this publication.
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