Numerical study on the law of fracture propagation in supercritical carbon dioxide fracturing

Compared with conventional hydrofracturing fluid, SC-CO2 has the merits of no water sensitivity and effective carbon dioxide storage. At present, the research on the fracture initiation mechanism of SC-CO2 fracturing is still at the exploring phase. This paper conducts a detailed study on the fracture initiation mechanism of SC-CO2 fracturing, and establishes a fracture initiation and propagation model of flow-stress-damage coupling according to...