Abstract：Exploration of subtle oil/gas reservoirs is paid more and more attention of industry and the analysis and application of prestack data of seismic data are becoming hot point.On the basis of AVO analysis and study of inversion of seismic wave impedance,the paper analyzed the principle of Fatti-AVO equations and sparse spike inversion and the joint constrainl parse spike inversion was conducted for the data volume of multiple prestack an-gle-gat hens,from which tlu1 three data volumes of P-wave impedance,S wave impedance and density could simultaneously acquired.In comparison with The P~wave irnpedanct1.tlic S-wave impedance can more reflect the iithologv and fluid.The picked elastic combining attributes parameters of rocks on that basis arc jointly usud for fint-dtwription of reservoir in combination with AVO attributes parameters,which can improve the precision of lden-nfication oi in ho logy and fluid.The practical use in Ordos areas showed that ihc method can provide a powerful technical support to identify the subtle lithologic oil / gas reservoirs.
周巍, 杨红霞. 岩石裂隙对岩石的弹性性质及速度—孔隙率关系的影响[J]. 石油地球物理勘探, 2005, 40(3): 334-338.
Zhou Wei, Yang Hong-xia. Effects of fractures of rock on elastic property of rock and velocity-porosity relation. OGP, 2005, 40(3): 334-338.
