摘要
沙一下亚段是大港油田滩海中区的主要含油层段,目的层埋藏深,为深水重力流沉积体系。前人认识沉积砂体分布主要是依据钻井、测井和录井资料勾绘的,地震资料应用不足,多向物源演化和沉积相带展布认识不清。以地质研究为基础,重点开展地震沉积学及构造特征与沉积分布研究,阐述了沙一下亚段不同沉积期的沉积展布特征,分析了物源体系和沉积演化特征以及构造对沉积的控制作用。储层预测成果在后期勘探、开发钻井中得到了证实。
The lower submember of the Sha-1 member is the main oil-bearing strata in the Central Beach area of Dagang Oilfiehl, which has a deep burial depth, and behmgs to a deepwater gravity flow depositional system. Previous studies determined tile distribution of sedimentary sand bodies mainly based on drilling, well logging and mud logging data. However, the evolution of nudtidireetional sources and sedimentary facies are poorly understood for the scarcity of seismic data. Based on geological researches, this study focused on seismic sedimentology, structural features and sedimentary distribution during different sedimentary periods of lower sha-1 suhmember, and then analyzed the controls of source system, sedimentary evolution and structures on the deposition. The prediet ion resuhs of reservoirs have been validated by the late exploration and development of boreholes.
出处
《地质学刊》
CAS
2015年第2期194-200,共7页
Journal of Geology
基金
中国石油天然气集团公司科技专项"歧口富油气凹陷大油气田勘探及综合配套技术研究"(2008E-0601)课题:"歧口凹陷滩海分层系含油气评价及目标优选"
"滨海一区与埕海三区开发概念方案研究"
"马东东沙一下储层分布及预测研究"
"马东东地区储层精细预测研究与应用"
关键词
多物源体系
重力流
地震沉积学
属性优化
调节带
大港油田
multi-source system
gravity flow
seismic sedimentology
seismic attributes optimization
accommodation zone
Dagang oilfield
