济阳坳陷新近系地层油藏特征--以太平油田为例

由于河流相沉积受控于古地貌形态，并在凸起边缘部位形成地层超覆圈闭，因此济阳坳陷新近系具有良好的油气成藏条件。太平油田主要含油层段为新近系馆陶组下亚段，根据构造演化、沉积储层特征及油源对比分析，认为“网毯式”输导体系是该油田油气运移的主要通道；古地貌控制了地层的分布和储层的发育程度；地层超覆边界控制了各砂层组的含油性，从而形成了典型的地层油藏组合。

The characteristics of the Neogene stratigraphic oil reservoir in Jiyang Depression-taking Taiping Oilfield as example

Controlled by the palaeogeomorphic pattern,fluvial sedimentation at the margin of the uplift formed stratigraphic overlap trap, so the Neogene of Jiyang Depression had good oil - gas reservoir forming condition. The main oil - bearing intervals of Taiping Oilfield were lower Cuantao Formation. Based on the study of structure evolution, sedimentary reservoir characteristics and oil- source correlation analysis, it was pointed that the Meshwork- carpet type of transportation system was the oil and gas migration channel of the oilfield,the palaeogeomorphics controlled the distribution of strata and development degree of reservoir, the boundary of stratigraphic overlap controlled the oil - bearing probability of each sand group. A typical stratigraphic oil reservoir assemblage was formed then.