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准噶尔盆地北三台地区侏罗系有机包裹体指示意义 被引量:2

HYDROCARBON INDICATOR SIGNIFICANCE OF ORGANIC INCLUSIONS IN THE JURASSIC RESERVOIRS IN BEISANTAI RAEA OF JUNGGAR BASIN
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摘要 有机包裹体记录了油气生成、运移、聚集等过程的重要信息。准噶尔盆地北三台地区侏罗系储层经历了多次构造运动的改造,具有多期次油气充注特征。针对这种多期次的特征,通过对该区11口井101块岩心样品中的有机包裹体的系统分析,讨论了有机包裹体的指示意义。通过对包裹体的均一温度、盐水包裹体的盐度以及油包裹体的荧光强度等测试结果的综合分析表明研究区侏罗系储层经历过4期热流体活动,均与油气成藏有关,分别对应地质历史时期发生过的3次油充注和一次天然气充注过程。结合埋藏史图分析,油充注发生于燕山期,天然气成藏发生在喜山早期。结合油藏地球化学资料等多方面资料,确定燕山晚期是北三台地区侏罗系储层的主成藏期。 The organic inclusion contains a wealth of information about the hydrocarbon generation,migration and accumulation.The Jurassic reservoir in Junggar Basin experienced many tectonic reconstructions and was characterized by multiple hydrocarbon charging.Based on 101 Jurassic core samples from 11 wells of BeiSantai area,systematic analysis of fluid inclusions was employed to study the complex hydrocarbon charging histories.The results of fluorescence observation on petroleum inclusions and microthermometry of both petroleum and aqueous inclusions indicated that the Jurassic reservoir of BeiSantai area experienced four thermal fluid activities corresponding to three times of petroleum charging and one time of gas charging.Comprehensive analysis of fluid inclusion and the burial history curve shows that the three times of hydrocarbon charging happened in the Yanshan times,The gas charging happened in the the early Himalayan.The integrated information suggests that the critical moment for petroleum charging is in the late Yanshan.
作者 潘福友
出处 《新疆石油天然气》 CAS 2007年第3期11-15,共5页 Xinjiang Oil & Gas
关键词 准噶尔盆地 北三台 侏罗系 流体包裹体 成藏期 显微测温 荧光行为 Junggar Basin BeiSantai Jurassic fluid inclusion petroleum charging moment Microthermometry Fluorescence behaviour
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