King Fahd University of Petroleum and Minerals

Jun Li

Abdullah Saad Sultan

Mohamed R Khodja

A method of determining absolute permeability in carbonates without upscaling computations includes performing a nuclear magnetic resonance (NMR) analysis and a mercury-injection capillary-pressure (MICP) analysis on at least three samples from carbonate rock of a set of representative regions to determine an experimental permeability, where each of the representative regions have properties related to the porosity and pore-throat size of the carbonate rock. A series of low resolution X-ray scans and a series of high resolution X-ray scans are performed on the same three samples of the carbonate rock of the set of representative regions. Permeability simulations are performed on the same three samples of the carbonate rock of the set of representative regions to determine a computed permeability. The experimental permeability and the computed permeability are then compared to provide computationally manageable and reasonable estimates of the absolute permeability of the carbonate rock.

Method of determining absolute permeability

This disclosure relates to a system and method for applying a prediction of permeability of shale gas in porous media at different pressure conditions to a shale gas production. The method uses a molecular model that accounts for slippage and adsorption effects under the different pressure conditions including simulated gas flows in a large computational domain representing a sample of shale rock. This system and method provides a computationally efficient processing to determine permeability variations of shale gas with the different pressure conditions.

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Dhahran, Saudi Arabia

Jun Li