山东东营凹陷广利东三维地震工区沙三中亚段高频层序分布及主控因素  

The Distribution and Its Controlling Factors of High-Frequency Sequence for Middle Part of Third Member of Shahejie Formation,Guanglidong 3D Seismic Survey Region,Dongying Sag,Shandong

作　　者：于建成[1] 辛仁臣[2] 梁江平[3] 王树恒[3] 乔敏[4] 

机构地区：[1]中国地质大学能源学院,北京100083 [2]中国地质大学海洋学院,北京100083 [3]大庆石油学院地球科学学院,黑龙江大庆163700 [4]大庆油田有限责任公司,黑龙江大庆163114

出　　处：《现代地质》2006年第2期232-238,共7页Geoscience

基　　金：国家自然科学基金项目(40272057)

摘　　要：利用三维地震工区的地震资料和钻井资料,通过地震反射轴的仔细解释和追踪,在东营凹陷广利东三维地震工区沙三中亚段识别出10个高频层序,自下而上分别编号A至J,不同高频层序的规模和空间分布存在明显变化。高频层序的A、C、D、G、H、I的规模较大,其余高频层序的分布范围较小。井震对比研究表明,在莱10-3井处,只发育A、D、E、G、I个高频层序。在这10个高频层序发育过程中,发生了4次明显萎缩和2次明显的物源向西迁移过程。高频层序分布区域的萎缩和迁移受湖平面升降和沉积物供应的控制,其中沉积物供应是最重要的影响因素。Based on 3D-seismic and well logging data, ten high-frequency sequences, i.e. A to J, are recognized in middle part of the third member of Shahejie Formation, Guanglidong 3D-seismic survey region, Dongying sag. This work is carried out through careful interpretation and tracing of seismic data. The size and distribution of different high-frequency sequences are changed in space. Integrated well logging and seismic data indicate that five high-frequency sequences （A, D, E, G and I） developed in the area of well Lai10-3. The high-frequency sequences of A, C, D, G, H and I have a big size, but the other high-frequency sequences have a relatively smaller size. Four lake shrinks and two sediment supply transference to west occurred in the study area during the process of these ten high-frequency sequences developed. The size and distribution of high-frequency sequence are controlled by lake-level fluctuation and sediment supply, but the most important controlling factor is sediment supply.

关 键 词：高频层序 沉积物供应 湖平面升降 东营凹陷 

分 类 号：TE121[石油与天然气工程—油气勘探]