论文部分内容阅读
吐哈盆地鄯善油田储层流体包裹体明显分为盐水包裹体和有机包裹体。三间房组包裹体均一化温度明显分为两期 ,其对应的地质时间分别为早白垩世和早第三纪末—晚第三纪 ;西山窑组储层流体包裹体均一化温度也明显分为两期 ,其对应的地质时间分别为晚侏罗世—早白垩世和晚白垩世末—早第三纪。鄯善油田西山窑组和三间房组储层自生伊利石同位素年龄分别为 32 .8～ 71.8Ma和 2 6 .4～ 45 .7Ma ,其对应的地史时期分别为早第三纪和晚白垩世末—早第三纪中期 ,反映了三间房组成藏时间晚于西山窑组成藏时间。综合分析油气生排烃史和运聚期次 ,鄯善油田油气大规模运聚时间是在晚白垩纪末—早第三纪及其以后 ,具有双侧近源晚期成藏的特点
Fluid inclusions in Shanshan oilfield of Turpan-Hami Basin are obviously divided into salt inclusions and organic inclusions. The temperature of homogenization of inclusions in Sanjianfang Formation is obviously divided into two periods, and the corresponding geologic time is Early Cretaceous and Early Tertiary-Late Tertiary, respectively. The homogenization temperature of fluid inclusions in Xishanyao Formation is also obvious It is divided into two phases, corresponding to the Late Jurassic-Early Cretaceous and Late Cretaceous-Early Tertiary, respectively. The isotopic ages of Xishanyao Formation and Sanjianfang Formation in the Shanshan Oilfield are 32.8 ~ 71.8Ma and 26.4 ~ 45.7Ma, respectively, corresponding to the Early Tertiary and Late Late Cretaceous - early Tertiary period, reflecting the formation of the Sanfangfang formation later than the Xishanyao formation time. Based on a comprehensive analysis of hydrocarbon generation and expulsion history and migration and accumulation times, the large-scale hydrocarbon migration and accumulation time in Shanshan Oilfield was characterized by late-stage near-source accumulation in the late Cretaceous and early Tertiary and beyond