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Abstract

Summary

The results of the pilot project on studying petrophysical and transport properties of core from a fractured carbonate gas-condensate reservoir are described. The studied whole core samples are characterized by low absolute permeability of matrix and highly heterogeneous multiscale network of cracks and fractures. Modern full core 3D X-Ray computed tomography was unable to resolve the geometry of thinner cracks, which made it impossible to create a regular binary solid/void digital rock model typically used for pore-scale hydrodynamic modeling. Thus, a Hessian-based crack detection method, allowing to differentiate voxels with different permeabilities, was employed to construct a model with effective properties. To calibrate the effective properties, smaller sub-plugs were scanned at substantially higher resolution and their images were spatially registered to the whole-core image. The density functional hydrodynamics + chemical potential drive method was used to carry out numerical simulation of three-phase water-gas-condensate flow on the constructed whole core digital rock model with effective properties.

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/content/papers/10.3997/2214-4609.202032039
2020-11-30
2024-04-28

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Digital Multiscale Flow Modeling for Fractured Carbonates with Hessian-Based Cracks Detection
Conference Proceedings 2020, 1 (2020); https://doi.org/10.3997/2214-4609.202032039
/content/papers/10.3997/2214-4609.202032039
/content/papers/10.3997/2214-4609.202032039
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