声波曲线重构技术在储层预测中的应用  

Application of acoustic curve reconstruction in reservoir prediction

作　　者：朱国军[1] 

机构地区：[1]中国地震局地球物理勘探中心,郑州450002

出　　处：《物探化探计算技术》2017年第3期383-387,共5页Computing Techniques For Geophysical and Geochemical Exploration

摘　　要：在储层预测研究中,当储层与泥岩波阻抗差异不明显时,常规地震反演方法不能有效预测储层,无法满足精细储层预测的要求。针对南海M油田储层预测实例,通过分析测井曲线储层识别能力,优选了对岩性识别能力较好的密度曲线,以岩石物理学理论为指导将密度曲线重构成声波曲线,提高了声波曲线的岩性敏感度。反演结果表明,重构声波反演方法在岩性识别能力、储层预测精度上有较大提高,能够满足油田精细开发的要求。In reservoir prediction, it is difficult to predict reservoir effectively by using common seismic inversion methods to meet the fine reservoir prediction,becuase the wave impedance can not identify lithology. Aiming at the reservoir prediction of M oilfield in the south China sea, it can identify lithology through the analysis of reservoir identification ability of well log-ging curve, with well selection of the density curve. The sensitivity of lithology can be improved based on the theory of rock physics, reconstructed longitudinal wave curve with density curve. The inversion results show that the reconstruction inversion method greatly improves prediction accuracy in lithology identification and reservoir prediction, and it meets the demand of the fine development of oil field.

关 键 词：曲线重构 测井约束反演 储层预测 Gardner公式 

分 类 号：P631.4[天文地球—地质矿产勘探]