摘要
叠前地震反演克服了叠后地震反演储层信息量的不足,具有良好的保真性和多信息性,可提高储层的描述精度。本文针对涠西南凹陷古近系地层多物源湖相沉积,储层纵、横向变化大,开展叠前弹性反演研究,采取叠前保幅处理技术、岩石地球物理分析技术、高分辨率储层预测技术以及AVO属性分析技术,预测了砂层组的横向发育特征,比较可靠地揭示出地下储层的展布情况和油气状况。
The pre-stack seismic inversion can get more information of the reservoir and improve precise of reservoir characterization than the post- stack seismic inversion. Considering the geology and deposition traits of WeiXinan sag, with some techniques, such as pre-stack holding-amplitude process, rock-geophysics analysis, high resolution reservoir prediction and AVO attribute analysis, the method of pre-stack elastic inversion is adopted. The sand body and reservoir distribution characters are pre-cleared.
出处
《地质装备》
2008年第5期25-28,共4页
Equipment for Geotechnical Engineering
关键词
叠前地震反演
随机模拟
储层预测
Pre-Stack Seismic Inversion, Probabilistic Simulation, Reservoir Prediction
