基于井震结合的储层厚度定量预测方法  

Quantitative Prediction Method of Reservoir Thickness Based on Well Logging and Seismic Data

作　　者：赵明珠 ZHAO Mingzhu(Exploration and Development Research Institute,Daqing Oilfield Co.,Ltd.,Daqing,Heilongjiang 163712,China)

机构地区：[1]大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712

出　　处：《西安石油大学学报（自然科学版）》2021年第6期16-22,55,共8页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家科技重大专项项目“大庆长垣特高含水油田提高采收率示范工程”(2016ZX05054)。

摘　　要：通过地震-地质层位标定及追踪、沉积单元级等时地层格架建立、井震相关系数分析等方法实现了地震属性优选与优化。在此基础上,利用多元线性回归技术,建立了井震结合储层厚度定量预测方法。地震属性优选与优化方法将优选出的地震属性按照可信度在平面上分为Ⅰ、Ⅱ、Ⅲ类,剔除上下临层的干扰信息,能够优选出反映本层信息的属性;井震结合储层厚度定量预测方法可实现无井区河道砂体厚度的定量预测,预测精度随井网密度的增加而增加。The optimization of seismic attributes are realized through the calibration and tracking of seismic-geological horizons,the establishment of isochronous stratigraphic framework of sedimentary unit level,and the analysis of well-seismic correlation coefficient.On this basis,a quantitative prediction method of reservoir thickness by combination of well logging and seismic data is established by using multiple linear regression technology.The application result shows that the seismic attribute optimization method divides the optimized seismic attributes into classesⅠ,ⅡandⅢon the plane according to the reliability,eliminates the interference information of the upper and lower adjacent layers,and can select the attributes reflecting the information of this layer;The quantitative prediction method of well-seismic combinating reservoir thickness realizes the quantitative prediction of channel sand body thickness in well free area.The accuracy of predicting channel sand body thickness increases with the increase of well pattern density.

关 键 词：井震结合 储层厚度定量预测 水下分流河道 大庆长垣 

分 类 号：TE122.1[石油与天然气工程—油气勘探]