【摘要】 塔里木盆地碳酸盐岩岩溶型储层广泛分布于塔北、塔中、巴楚等地区,是塔里木盆地碳酸盐岩勘探的重点,也是塔里木油田增储上产的主要层系之一。由于埋藏深度大、反射信号较弱、信噪比较低,更由于岩溶型储层非均质性严重,使得储层预测的难度增大。通过多年的攻关研究,从碳酸盐岩风化壳储层的地球物理响应特征出发,逐步探索并建立了技术、岩溶型储层测井评价技术、岩溶型储层地震描述技术、应变量分析技术为手段的溶型储层综合评价技术。在塔北、以地质概念模型为基础,以基于层序格架的潜山古地貌恢复塔中等地区应用中取得了良好的地质效果,相继获得了工业油气流。本文介绍了该技术在塔北轮古西地区的具体实施和应用效果。更多还原

【Abstract】 Carbonate karst reservoir is the emphases of Tarim’s carbonate exploration. However, it is buried at a large depth, which results in weak seismic reflection signal and low S/N ratio. In addition, the karst reservoir contains great heterogeneity, so reservoir prediction is very difficult. Through many years of research and exploration, we have established a suite of comprehensive evaluation technology for carbonate karst reservoir using geophysical characteristics and a geological concept model, includ- ing a technique for reconstructing the paleogeomorphology of buried hills based on a sequence framework, seismic description of the karst reservoir, and strain variant analysis for fracture estimation. The evalu- ation technology has been successfully applied in the Tabei and Tazhong areas, and commercial pro- duction of oil and gas has been achieved. We show the application of this technology in the Lunguxi area in North Tarim in this paper.更多还原