Research on Rock Physics Modeling Methods for Fractured Shale Reservoirs

The Sichuan Basin is a significant region for exploration and development of shale gas in China, it essential to clarify the impact deep reservoir parameters on cost-effective at scale ensure national energy security. Rock physics modeling means communicating physical elastic rocks. A rock method applicable fractured reservoirs proposed current situation complex fluid relationships unclear characteristics identification seismic response. In this paper, based Self Consistent Approximation (SCA) model differential effective medium (DEM) model, anisotropic source used as starting point add bound water, kerogen, clay, brittle minerals, Schoenberg linear slip theory fracture disturbance effects, then Brown–Korringa perform replacement under conditions. Finally obtained, established analysis parameters, Thomsen weakness parameters. tests were performed southern an example. experimental results show that by process can accurately invert longitudinal transverse wave velocities shale, which provide conceptual basis study reservoirs.