测井相分析技术在岩性油气藏勘探中的应用——以乌夏地区三叠系为例

Application of Log Facies Analysis to Lithologic Reservoir Exploration——An example of Triassic in Wu-Xia area

测井资料在岩性油气藏勘探中将发挥越来越重要的作用。介绍了利用测井相分析技术重建地层岩性及沉积微相的基本原理及步骤。探讨了通过测井资料准确识别地层岩性及沉积微相,进行高分辨率层序地层分析,预测和优选岩性圈闭的有利发育区域,确定最佳勘探目标的基本思路。建立了乌夏地区三叠系岩性及沉积微相定量解释模型,并验证了模型的有效性。

This paper presents the basic principle and procedure for reconstruction of stratigraphic lithology and sedimentary microfacies using log facies analysis technique, and discusses the thought for analysis of high-resolution sequence stratigraphy, prediction and optimization of lithologic traps in possible area as well as determination of best prospecting targets based on well log data. Hence a model for quantitative interpretation of lithology and depositional microfacies of Triassic strata in Wu-Xia area of Junggar basin is developed and verified effectively.