渤海湾盆地临南洼陷古近系沙河街组源-储组合类型与致密（低渗）砂岩油差异富集模式

韩载华, 刘华, 赵兰全, 刘景东, 尹丽娟, 李磊

Source rock-reservoir assemblage types and differential oil enrichment model in tight （low-permeability） sandstone reservoirs in the Paleocene Shahejie Formation in the Linnan Sub-sag， Bohai Bay Basin

Zaihua HAN, Hua LIU, Lanquan ZHAO, Jingdong LIU, Lijuan YIN, Lei LI

图13 临南洼陷沙三中亚段—沙四上亚段致密（低渗）砂岩油富集模式 ①源-储共生夹层较强富集；②源-储共生互层强富集；③源-储紧邻源上较强富集；④源-储紧邻源间强富集；⑤源-储紧邻源下较强富集；⑥源-储间隔源下弱富集

Fig.13 Oil enrichment model of tight （low-permeability） sandstone reservoirs in the middle submember of the 3rd member to the upper submember of the 4th member of the Shahejie Formation in the Linnan Sub-sag