Abstract: Based on the principle of lithologic sequence,Dongying formation in Shenghai area,Jiyang depression,are consisted of five stratigraphic sequences,and to be controlled by two depositonal systems.In sequence stratigraphic systems,the vertical distribution of reservoir is controlled by base-level cycle changes and is in the lower parts of sequence units.The lateral distribution is controlled by palaeogromorphology including erosional valley,slope break on the clinaform formed by pre-Tertiary buried hill and up-dip stratigraphic pitchout.Four turbidity channels and six potential reservoir bodies are predicted in the destination sequences,which have been successfully confirmed by drilling.

Key words: sequence stratigraphycbase-level, cycle, palaeogeomorphology, reservoir prediction

摘要： 根据基准面旋回变化控制层序地层形成和展布规律的基本原理,济阳坳陷胜海地区东营组由5个地层层序组成,并受两大沉积体系控制.在层序地层体制中,储层的发育在纵向上受基准面旋回变化的控制,形成于各层序单元的下部;在平面上受下切河谷、坡折带和地层上超尖灭等古地貌格局的制约.在目的层序中预测出4条浊积水道及其控制的6个有利的储油砂体,并得到了钻井的证实,获得成功.

关键词: 层序地层, 基准面, 旋回, 古地貌, 油藏预测