相控属性建模在苏德尔特油田贝14区块的应用

苏德尔特油田贝14区块的兴安岭群主要发育扇三角洲,物源方向为南及东南。依据测井相特征和沉积相模式,在井震联合建立的构造模型基础上,采用序贯指示模拟建立兴安岭群的沉积微相模型,然后按沉积微相类型分别设置变差函数,采用序贯高斯法对孔隙度参数进行模拟。后验精度分析表明相控储层属性建模降低了随机模拟的不确定性,提高了储层预测的精度。

Application of Facies-Controlled Reservoir Petrophysical Parameter Modeling in Bei-14 Area of Suderte Oil Field

Fan delta are well developed in Xing'anling Group,Block Bei-14 of Suderte oilfield,with materials sourced mainly from south and southeast.On the basis of log-curve facies and core sedimentary model,structural model has been established on well seismic tie,and microfacies model has been constructed on the basis of structural model by using sequential indicator simulation method. Then,on the basis of the sedimentary facies types,with variate difference function,the petrophysical parameters are simulated by using sequential gauss simulation under the control of sedimentary microfacies modeling.Posterior precision analysis shows that the facies controlled reservoir property modeling can reduce the uncertainty of random simulation,and improve the precision of reservoir prediction.