【摘要】 针对PG气田井距大、目的层段平面相变快,单纯利用井点资料很难刻画沉积相平面展布特征的问题;利用三维地震资料平面分辨率高的优势,采用Stratimagic地震相分析技术,选取合适参数进行地震相分析,通过与主要地震相单元中单井微相分析成果结合,建立了地震相与沉积相的对应关系,将地震相转化为沉积相。该方法弥补了单纯用钻井资料进行沉积相划分的缺陷,提高了沉积相划分精度。更多还原

【Abstract】 It was difficult to characterize the distribution of sedimentary facies only using well data because of the wide well spacing and the quick lateral facies variation in PG Gas Field.To deal with the both problems,stratimagic seismic facies analysis was used to take full advantage of high resolution of 3D seismic data.It chose appropriate parameters to analyze the seismic facies of target zones,establish the relationship between seismic facies and sedimentary facies and then get the distribution of sedimentary facies through combining the single well microfacies analysis in the main seismic facies unit.This method makes up the limitation of studying sedimentary facies only using well data,and improves the accuracy of it.更多还原