测井相在沉积微相分析中的应用——以塔中402井区CⅢ油藏为例

Application of Logging Facies in the Analysis of Sedimentary Microfacies——A Case Study of CⅢ Reservoir in Tazhong 402 Wellblock

综合利用高分辨率地层倾角曲线、常规测井曲线、取心资料,结合东河砂岩段的多种沉积微相,建立了测井相模式库,并将这种模式应用到非取心井。据此在研究区单井沉积微相识别的基础上,综合前人的沉积相背景研究资料,绘制了沉积微相连井对比剖面图,以及各小层沉积微相平面分布图,总结了该地区沉积微相分布特征,为储层精细地质研究、剩余油精细刻画提供了充分的依据。

By the comprehensive usage of high resolution stratigraphic dip curves,conventional logging curves,core data,and integrating multiple sedimentary microfacies of the Donghe sandstones,a logging facies pattern library was established,and then it was applied to the non- coring wells. The well contrast profile and the plane distribution of sedimentary microfacies of each small layer are plotted based on the identification of single well sedimentary microfacies in the study area and the synthesis of previous background researches on sedimentary facies. Finally the characteristics of sedimentary microfacies distribution in this area was summarized,which provided sufficient basis for the fine geological research and characterization of remaining oil reservoir.