Pre‐stack Simultaneous AVO Inversion and Lithology Prediction of Shale Gas Reservoir

Shale gas is mainly gathered in shale in adsorbed and in free forms [ 1].Shale gas reservoirs have the characteristics of self-generating and self-preserving,low density,low porosity and low permeability,which make the seismic prediction difficulty.But the anisotropy of shale gas reservoir is also 30%-40% [ 2].Based on the prediction technology of conventional oil and gas,apply pre-stack