埕岛东坡陆相箕状断陷缓坡带层序地层学研究

沉积基准面旋回控制地层的充填序列，划分地层层序、建立其地层格架，可以搞清工区内的储、盖组合特征，找到油气藏的分布规律。埕岛东坡是一个中、古生界潜山缓坡带，东营组逐层超覆其上。该研究运用层序地层学原理，结合地层沉积发育特征厘定地层界线，建立层序地层序列，在地震剖面上划分地震旋回，研究沉积旋回对储层和盖层的控制作用，找到油气富集区带，有效地指导了该区缓坡带超覆油气藏的勘探。

Sequence stratigraphy study of the gentle slope belt of terrestrial facies half graben:A case study of Ed Formation in east slope of Chengdao,Shengli Oilfield

The infilling sequence of stratum was controlled by the cycle of base level of deposition. The classification of stratigraphic sequence and establishment of stratigrahyic framework facilitate the characterization of the association of reservoir and caprock, and determination of reservoir distribution. The east slope of Chengdao is a gentle slope of the Mesozoic and Paleozoic buried hill. It was overlapped with Ed Formation. Guided by the principle of sequence stratigraphy and depositional characters, the author delineated the boundary of stratigraphy, classified stratigraphic sequence, determined seismic cycle on seismic section, and studied the controlling effect of depositional cycle on reservoir and caprock. A lot of hydrocarbon enrichment zones have been found.