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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。
The carbonate karst reservoirs in Tarim Basin are widely distributed in Tarim, Tazhong, Bachu and other areas. They are the focus of carbonate exploration in the Tarim Basin and are also one of the major strata that increase reserves and production in Tarim Basin. Due to the large burial depth, the weak reflection signal and the low signal-to-noise ratio, it is more difficult to predict the reservoir due to the serious heterogeneity of karst reservoirs. Through many years of research, based on the geophysical response characteristics of carbonate weathering crust reservoir, we have gradually explored and established technologies, karst reservoir logging evaluation technology, karst reservoir seismic description technology, strain analysis technology As a means of comprehensive evaluation of dissolved reservoirs. In Tabei, based on the conceptual model of the geology, good geologic effects have been obtained from the applications of the middle-high-altitude recovery of buried hill in the buried hill based on the sequence framework, and industrial oil and gas flows have been obtained one after another. This article describes the implementation of this technology in the ancient region of northern Tarragona and its application effects.