潜江凹陷潜江组隐蔽性油藏分布规律与预测方法
Distribution and prediction of concealed reservoirs of Qianjiang Group in Qianjiang Depression
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摘要: 通过对潜江凹陷潜江组隐蔽油藏形成的地质条件、油藏类型及隐蔽油藏的分布规律研究。根据江汉盐湖盆地特殊的地质地震特点,应用高精度层序地层学建立盐湖储集层地质模型;以高分辨率二维和三维地震资料进行波阻抗和伽玛反演预测储层;采用MDI多元油气预测方法预测圈闭的含油气性;结合构造背景、油气水关系进行综合预测评价,提供可靠的钻探井位。Abstract: The geologic formation conditions and distributing regularities of concealed reservoirs and the types of known reservoirs of Qianjiang Group in Qianjiang depression are discussed.According to the special geologic and seismic circum stances of Jianghan saline lake basin, the integrated exploration methods were developed, which including building the geologic models of saline lake basin by the high accuracy sequence stratigraphy, predicting reservoir beds according to the impedence and gamma inversion results using 2D and 3D high resolution data, predicting whether the traps bear oil and gas or not applying MDI multi-prediction methods, comprehensively evaluating reservoirs combinating the structural background and oil-gas relationship.
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