关键词: 地震资料, 定量反演, 饱和度, 孔隙度, 岩石物理模型, 混合优化算法

Abstract: A new method for simultaneous inversion of porosity and saturation based on rock-physics model and hybrid optimization method was presented.The principles of rock-physics model and hybrid optimization method and the inversion process were introduced.The valued range of porosity and saturation were entered into the inversion process and taken as the constraint of inversion to enhance the precision and stabilization of inversion.The seismic data used in the inversion were based on the inversion of seismic velocity.The influence of seismic attributes combination on inversion result was discussed.The forward modeling data show that the proposed method has some advantages of more precise inversion result and stable inversion process and can be generalized to the inversions using other rock-physics model,reservoir parameters and multiple seismic attributes.

Key words: seismic data, quantitative inversion, saturation, porosity, rock-physics model, hybrid optimization algorithm