Surface characteristics analysis of fractures induced by supercritical CO2 and water through three-dimensional scanning and scanning electron micrography

Morphology of hydraulic fracture surface has significant effects on oil and gas flow, proppant migration and fracture closure, which plays an important role in oil and gas fracturing stimulation. In this paper, we analyzed the fracture surface characteristics induced by supercritical carbon dioxide (SC-CO2) and water in open-hole and perforation completion conditions under triaxial stresses. A simple calculation method was proposed to...