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大港油田埕海斜坡区二叠系地质条件复杂,储层厚薄不一,物性变化大,要搞清该区储层特征及其分布规律,仅使用单一的常规反演方法存在困难。因此,在对重新处理的埕海潜山单片三维叠前时间偏移资料精细解释后,针对二叠系在测井约束反演的基础上进行采样点数据统计法及多种地震属性提取技术的联合应用,完成二叠系3个砂组的储层预测,结果使储层的可辨识性与反演预测结果的可靠性得到明显的提高。波阻抗反演作为储层预测的一种核心技术,将其结合采样点数据统计法并综合多种属性资料分析预测砂体分布及厚度的方法,在埕海斜坡区隐蔽油藏的勘探中发挥了重要作用,并获得显著的地质效果。
The geological conditions of Permian in the Dangang Oilfield and the Qionghai Slope are complex with varying thickness and varying physical properties. Therefore, it is necessary to find out the reservoir characteristics and its distribution in this area. It is difficult to use only a single conventional inversion method. Therefore, after the detailed interpretation of the re-processed monolithic three-dimensional prestack time migration data in Qionghai buried hill, aiming at Permian logging data statistics and a variety of seismic attribute extraction techniques , The reservoir prediction of the three sand sets in the Permian was completed. As a result, the identifiability of the reservoir and the reliability of the inversion prediction results have been obviously improved. As a core technology of reservoir prediction, wave impedance inversion is combined with the method of sampling point statistics and data analysis to predict the distribution and thickness of sand bodies, and plays a role in the exploration of subtle reservoirs in the Songhai slope area Played an important role and achieved remarkable geological results.