Different Effect Mechanisms of Supercritical CO<sub>2</sub> on the Shale Microscopic Structure
Yiyu Lu, Jiankun Zhou, Honglian Li, Xiayu Chen, Jiren Tang
Abstract
, the fractal dimensions of adsorption pores and seepage pores decrease, indicating that the specific surface area and roughness of adsorption pores decrease. This implies that the adsorption capacity decreases, and that the complexity of the seepage pores declines, which is conducive for gas migration.
Topics & Concepts
Supercritical fluidOil shaleDissolutionAdsorptionChemical engineeringSupercritical carbon dioxideCalciteScanning electron microscopeMineralogyMaterials scienceMicrostructureChemistryGeologyComposite materialOrganic chemistryEngineeringPaleontologyHydrocarbon exploration and reservoir analysisCO2 Sequestration and Geologic InteractionsAtmospheric and Environmental Gas Dynamics