摘要
利用岩石学、激光共聚焦显微系统、有机地球化学等多种技术方法系统分析了泌阳凹陷核桃园组核三段泥页岩层系的含油性,探讨了油气赋存方式、运移通道和含油性特征。结果表明,无机矿物中发育的粒间孔、晶间孔及微裂缝可能是页岩油气赋存的主要储集空间;烃类经历了生排烃作用后,在微裂缝中顺层赋存,部分烃类顺硅质条带赋存,硅质条带可能是烃类的运移通道之一;核三段泥页岩层系中层状-纹层状泥页岩的含油性较好。
The oil-bearing characteristics of the shale series in the third member of the Hetaoyuan Formation in Biyang Sag are analyzed by using various techniques and methods such as petrology,laser confocal microscopy,and organic geochemistry.And then the oil and gas occurrence mode,migration channel,and oil-bearing characteristics of the target series are discussed.The results show that intergranular pores,intergranular pores and microfractures developed in inorganic minerals may be the main reservoir space for shale oil and gas.After hydrocarbon generation and expulsion,hydrocarbons are bedded in microfractures,and some hydrocarbons are bedded in siliceous strips,which may be one of the migration channels of hydrocarbons.The bedded-laminated shale in the shale series of He-3 member has a good oil-bearing property.
作者
严锡
YAN Xi(Exploration&Development Research Institute of Henan Oilfield Company,SINOPEC,Nanyang 473132,Henan,China)
出处
《石油地质与工程》
CAS
2023年第4期25-28,36,共5页
Petroleum Geology and Engineering
关键词
泌阳凹陷
核三段
页岩油
含油性
Biyang Sag
He-3 member
shale oil
oil-bearing property
