柴西南X区油藏储层隔夹层分布预测建模研究

Modeling of Interlayer Prediction in X Well Block of Southwestern Qaidam Basin

储层隔夹层对柴西南X区油藏开发有重要的影响。综合运用岩心、测井、物性、开发动态等资料,对该区隔夹层进行研究。从岩心观察着手,将本区隔夹层分为泥岩隔夹层和物性隔夹层两大类,利用岩心识别出的隔夹层标定测井资料,建立了隔夹层测井识别标准,共识别出177个隔夹层。以识别出的"硬数据"为约束,采用序贯高斯随机模拟建立了本区隔夹层的三维空间预测模型,分析了隔夹层的分布规律,为油藏后期开发及剩余油挖掘提供指导意义。

The reservoir interlayer has important influence on the development in X well block of Southwestern Qaidam Basin.On the basis of analysis on the core,logging,physical properties,dyna-mic development data,The reservoir interlayer has studied in the area.Based on the core observation,the reservoir interlayer is divided into two major types,which are mud interlayer and physical property interlayer,Using the interlayer data which is identified by core,calibrate the logging data,then established the logging identification standards and has identified177interlayer in the area.As a constraint,it has established the3D space prediction model of the reservoir interlayer based on the sequential gaussian random simulation,then analyses the distribution regularity of the reservoir interlayer,which provides guidance significance for later reservoir development and residual oil mining.