Numerical study on filtration law of supercritical carbon dioxide fracturing in shale gas reservoirs

Supercritical carbon dioxide (SC‐CO 2 ) fracturing can form more complex fracture network and avoid reservoir damage, making it a lucrative alternative to hydraulic fracturing in shale gas reservoirs. This study establishes a two‐dimensional dynamic filtration model of SC‐CO 2 fracturing, which considers stress sensitivity, fluid adsorption, dynamic changes of fluid physical parameters, and coupled fracture propagation. According to the...