Application of seismic sedimentology in oilfield exploration and development： taking the eastern area of Pre-Caspian Basin as an example  

作　　者：王一博 朱筱敏[2] 王继平 郭兵[4] 王明[5] 

机构地区：[1]中海油研究总院,北京100027 [2]中国石油大学北京地球科学学院,北京102249 [3]长庆油田分公司苏里格气田研究中心,陕西西安710018 [4]长庆油田分公司采油一厂,陕西延安716000 [5]中国石油化工股份有限公司石油勘探开发研究院,北京100083

出　　处：《西安石油大学学报（自然科学版）》2012年第1期I0001-I0007,117,共7页Journal of Xi’an Shiyou University（Natural Science Edition）

基　　金：国家“973”重点基础研究规划项目（编号：2003CB214608）

摘　　要：滨里海盆地东部盐下下二叠统层序SⅢ主要发育辫状河三角洲和滨浅海沉积,该区钻井分布少、砂体厚度薄、典型地震相标志少,常规的沉积相研究方法受到一定的限制,沉积砂体分布范围不明确.利用90°相位转换和地层切片技术,对层序SⅢ的高位体系域进行了地震沉积学研究,通过对地层切片的解释,精细刻画出辫状河三角洲前缘砂体在不同时期的平面分布范围,预测了沉积相在时空上的演化规律,为油气勘探开发提供地质依据.Braided delta and epeiric sea depositions are developed in the sequence SIII of Permian Formation under salt in the east of Pre-Caspian Basin. The geologic research of the area by using conventional sedimentary facies method is restricted because of less wells,thin sand bodies and less typical seismic facies symbol. Therefore, the sedimentary sandbody distribution in this area cannot be determined. For this reason,the highstand system tract of sequence SIII is studied by using 90°phase shift and stratal slicing technolo- gy. The plane distributions of the braided delta front sandbodies in different periods are presented by the interpretation of stratal slices, and the temporal and spatial evolution laws of sedimentary facies are obtained, which provides a reliable geologic criterion for the explo- ration and development of gas and oil in this area.

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分 类 号：G353.23[文化科学—情报学] G232