摘要
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 。
Fluid inclusions in reservoir of Shanshan oil field in Turpan\|Hami basin can be divided into two types of saltwater inclusion and organic inclusion. Homogenization temperatures of inclusions in Sanjianfang formation can be divided into two periods of 60～70 ℃ and 90～110 ℃ and their accordingly geologic periods are Early Cretaceous and the end of Paleogene-Neogene respectively. Homogenization temperatures of fluid inclusions in reservoir of Xishanyao formation are divided into two periods of 60～70 ℃ and 80～100 ℃, and the accordingly geologic periods are Late Jurassic-Early Cretaceous and the end of Late Cretaceous-Paleogene respectively. Isotope ages of authigenic illite in reservoir of Xishanyao formation and Sanjianfang formation in Shanshan oil field are 32.8～71.8 Ma and 26.4～45.7 Ma respectively, and their accordingly geologic periods are Paleogene and the period from the end of Late Cretaceous to the middle of Paleogene. The time of reservoir formation in Sanjianfang formation is later than that in Xishanyao formation. Based on hydrocarbon generation and expulsion history as well as period of oil and gas migration and accumulation analysis, a mass of oil and gas injection occurred in the period from the end of Late Cretaceous to Paleogene and later on. Reservoir formation in Shanshan oil field is characterized by two sides, near source and late forming reservoir.
出处
《石油大学学报（自然科学版）》
CSCD
2000年第4期104-107,共4页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
中国石油天然气集团公司"九五"科技攻关项目!(96000702 06)
博士后基金资助
关键词
油气运移
运移期次
包裹体
同位素定年
成藏过程
Turpan-Hami basin
hydrocarbon migration
migration period
fluid inclusion
geological isotopic dating
