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通过对潜江凹陷沉积和构造背景的分析,论述了广北油田潜34油藏的成生关系及控制因素。该油藏储层由一套深水沉积的、呈叠瓦状以指状形式尖灭于泥岩中的下切河道砂体组成,其圈闭条件受岩性和构造双重控制。根据地震资料解释,结合关键井的资料分析,对潜34油藏的几何形态、圈闭机制、岩性和物性特征进行了描述。在参数模型研究的基础上,采用双孔隙度反演和油藏模式识别技术对储层分布和油藏特征进行了进一步的描述和分析。
Through the analysis of the sedimentary and tectonic setting in the Qianjiang Sag, the relationship and controlling factors of the submarine 34 reservoirs in Guangbei Oilfield are discussed. The reservoir consists of a set of deep-water sedimentary, channel-like, finger-like, cut-off channel sand bodies in the shale that are trapped under dual control of lithology and tectonics. Based on the seismic data interpretation and the data analysis of key wells, the geometry, trap mechanism, lithology and physical properties of the submarine reservoir are described. Based on the study of parameter model, the reservoir distribution and reservoir characteristics are further described and analyzed by dual porosity inversion and reservoir pattern recognition.