【摘要】 地质统计学反演基于地质统计学方法,对储层的空间分布特征进行模拟,预测储层分布规律。相对于常规约束稀疏脉冲反演,地质统计学反演不再受限于地震资料频带宽度,能有效提高反演结果纵向分辨率,识别厚度较小的储层。以海安凹陷曲塘深凹为例,利用地震、测井资料和地质认识,在稀疏脉冲波阻抗反演基础上开展地质统计学反演,进行砂体展布预测。研究结果与钻井资料吻合度较高,符合地质认识,为认识该区砂体分布提供了依据,为寻找有利区奠定了基础。更多还原

【Abstract】 Geostatistical inversion based on geostatistical method simulate the spatial distribution characteristics of reservoir and predict the reservoir distribution. Compared with conventional constrained sparse spike inversion, the geostatistical inversion no longer limited to the bandwidth of seismic data can effectively improve the vertical resolution of the inversion results and identify thickness smaller reservoir. Taking Qutang deep pit of Haian depression as an example, and by using seismic, logging data and geological understanding, geostatistical inversion based on constrained sparse spike inversion was conduct to predict the sandbody reservoir distribution. The results highly consistent with the drilling data and geological understanding, provide basis for recognizing the sandbody distribution of this area and lay the foundation of finding advantage areas.更多还原