Application of prestack simultaneous inversion in sandstone oil reservoir prediction

AVO technology is an very important tool of hydrocarbon detection.Prestack simultaneous inversion based on AVO theory has become a very popular research method.Based on the analysis of the rock physical properties of the drilled well and integrated the analysis of the AVO forward modeling and fluid substitution,the paper analyses the feasibility of lithology identification and oil-water recognition in the target layer of researched area by using AVO technology.Using the prestack simultaneous inversion,acoustic impedance,shear impedance and density volumes can obtain at the same time.On that basis,the velocity ratio of compression to shear wave and poison impedance are computed,and by using this data the lithology and oil gas predictions of the target layer of study area are studied and achieved good application effect finally.