新疆石油地质

›› 2013, Vol. 34 ›› Issue (4): 1-1.

• 论文 •    

羌塘盆地鄂斯玛地区索瓦组流体包裹体及油气成藏

占王忠1，贺永忠2，陈文彬1，朱 勋2   

  1. (1. 中国地质调查局 成都地质调查中心,成都 610081;2. 贵州地质调查院,贵阳 550005)
  • 出版日期:2019-01-01 发布日期:1905-07-12

Fluid Inclusion and Hydrocarbon Accumulation of Suowa Formation in Esima Area in Qiangtang Basin

ZHAN Wangzhong1, HE Yongzhong2, CHEN Wenbin1, ZHU Xun2   

  1. (1.Chengdu Center, China Geological Survey, Chengdu, Sichuan 610081, China; 2.Guizhou Geological Survery, Guiyang, Huizhou 550005,China)
  • Online:2019-01-01 Published:1905-07-12

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摘要： 对羌塘盆地鄂斯玛地区索瓦组11块流体包裹体样品荧光观察，显微测温、测盐等系统分析结果表明，该地区索瓦组储集层发生过5期热流体活动，其中第2期、第3期和第5期与油气成藏相关；第2、第3期流体活动主要以油充注为主，第5期流体活动主要为天然气充注。结合埋藏史分析可知，该区在晚侏罗世晚期到早白垩世早期（148.3×106~144.7×106 a）、早白垩世早期（144.7×106~141.1×106 a）和中新世中期（17.6×106~11.3×106 a）存在3期大规模油气聚集成藏。

Abstract: In this paper, 11 samples of fluid inclusions from the Suowa formation in Esima area of Qiangtang basin were analyzed, including the fluorescence observation, micro?temperature and salinity measurement, etc. The results indicate that five periods of thermal fluid events took place in this Suowa reservoir, among which the second, third and fifth periods were related to the hydrocarbon accumulation in this area: the second and third periods were dominated by oil charging and the fifth by gas charging. Combined with the burial history analysis, it is concluded that there exist three periods of large?scale hydrocarbon accumulation processes, namely, in the end of Late Jurassic tothe early of Early Cretaceous (148.3×106~144.7×106 a), the early of Early Cretaceous (144.7×106~141.1×106 a) and the Middle Miocene(17.6×106~11.3×106 a)

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