【摘要】 通常叠后波阻抗反演是基于入射角为零的叠后地震资料进行的,可以较好地反映岩性特征,但对于非均质性较强的储层物性预测效果不理想.叠前道集地层约束反演技术基于贝叶斯原理,利用叠前道集数据反演,包含振幅随入射角度变化的信息,能够较好地反映储层非均质性.东营凹陷北部陡坡带砂砾岩体反演结果表明,该技术能够较好地预测了工区砂砾岩体储层的空间展布特征.更多还原

【Abstract】 Traditional post-stack impedance inversion performs inversion of post-stack seismic data.It is a better technique to describe subsurface lithologic character.But it could not get an exact reservoir prediction to heterogeneous reservoir.Pre-Stack Constrained Stratigraphic Inversion Technique is based on a bayesian formalism.It performs simultaneous inversion of multiple angle stacks.This inversion combines pre-stack seismic amplitude and could predict heterogeneous reservoir much better.Pre-Stack Constrained Stratigraphic Inversion is applied to glutenite reservoir prediction at steep slop structure zone in north Dongying Sag and sculpts glutenite reservoir Spatial Distribution.更多还原