摘要
通过单偏光、荧光显微镜和显微冷热台测温观察等方法,对鄂尔多斯盆地延长组长2段和长6段内流体包裹体系统进行研究,归纳流体包裹体岩相学、均一温度和冰点温度等特征,结合盆地热演化史分析推测出储层内烃类充注史,并恢复研究区长6段早白垩世末期的古流体势。研究结果显示,研究区延长组内长2段和长6段内主要发生过一期油气充注,对应的地质历史时间为早白垩世中期(120～100 Ma)。
With methods such as polarizing and fluorescence microscope observation, homogeneous temperature and ice point temperature measurement and analysis of composition, a systematic study was conducted to acquire petrographic, salinity and homogenization temperature of fluid inclusions in the Yanchang Formation of the Triassic reservoir in the Ordos Basin. Combined with the thermal evolution of basin, fluid injection history and corresponding paleo-fluid potential were constituted. The oil and gas accumulations of reservoirs in the Chang2 and Chang6 sections were characterized by one stage, and might happen in the Middle Cretaceous, about 120-100 Ma.
出处
《石油实验地质》
CAS
CSCD
北大核心
2013年第4期384-388,共5页
Petroleum Geology & Experiment
基金
国家科技重大专项"大型油气田及煤层气开发"子课题"鄂尔多斯盆地及周边页岩气资源评价"(2011ZX05018001-004)
关键词
流体包裹体
油藏形成时间
古流体势
延长组
蟠龙地区
鄂尔多斯盆地
fluid inclusion
formation period of oil-and-gas reservoir
paleo-fluid potential
Yanchang Forma- tion
Panlong area
Ordos Basin
