【摘要】 为降低深水勘探风险,准确识别白云深水区岩性圈闭边界,采用多种技术手段相结合的方法,对深水沉积岩性圈闭的边界进行研究。在层序地层格架、沉积体系控制下,锁定岩性圈闭形成的有利区带;建立深水重力流沉积储层岩相组合正演模型;利用地震波形分析技术,识别储层与非储层,精细刻画水道沉积充填特征、扇体内部结构、砂体堆砌方式等微观结构;结合储层反演,以及多种地震属性,进一步综合识别岩性圈闭边界。研究成果总结了白云深水陆坡重力流水道砂岩,斜坡扇、盆底扇砂岩岩性圈闭的边界识别特征,并应用到勘探实践中,取得了良好的勘探成果。更多还原

【Abstract】 To reduce the risk of exploration in deep water,and accurately identify the lithologic traps’ boundary in the deep zone of Baiyun depression,this paper adopted the method of combining multiple technologies to study the sedimentary lithologic traps’ boundary in deep-water.In the sequence stratigraphic framework and under the control of sedimentary system,the favorable area is targeted,in which lithological traps can form;The forward model is built,which can describe various kinds of sedimentary reservoir faces about the gravity flow in deep water;Making use of the analytical technology of seismic waveform,the reservoirs and non-reservoirs are indentified,and the characterization of channel deposition and filling,the sedimentary fan body inside structure,sand body packing mode of microstructure are finely described;Combination of reservoir inversion and a variety of seismic attributes,the lithological traps’ boundary is further comprehensively identified.The study result summarized the recognizable characters of sand rock lithological traps’ boundary about the slope gravity flow channel sand,slope fan,floor fan sandstone in Baiyun deep-water,and it is applied to the exploration practice,then the good exploration results are obtained.更多还原