新疆石油地质

›› 2015, Vol. 36 ›› Issue (2): 1-1.doi: 10.7657/XJPG20150203

• 论文 •    

羌塘盆地角木茶卡地区中二叠统储集层流体包裹体及油气成藏特征

占王忠1，2，格桑旺堆3，陈文彬1，   

  1. (1.中国地质调查局成都地质调查中心,成都610081;2.国土资源部沉积盆地与油气资源重点实验室,成都610081; 3.西藏区域地质调查大队,拉萨851400)
  • 出版日期:2019-01-01 发布日期:1905-07-12

Fluid Inclusion and Hydrocarbon Accumulation of Middle Permian Reservoir in Jiaomuchaka rea in Qiangtang Basin

ZHAN Wangzhong1,2, Gesan Wangdui3, CHEN Wenbin1,2   

  1. (1.Chengdu Center of China Geological Survey, Chengdu, Sichuan 610081, China;2.Key Laboratory for Sedimentary Basin and il and Gas Resources, Ministry of Land and Resources, Chengdu, Sichuan610081, China;3. Regional Geological Survey of Tibet, hasa, Tebet851400, China)
  • Online:2019-01-01 Published:1905-07-12

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摘要： 对羌塘盆地角木茶卡地区中二叠统地表露头样品以及羌资5井井下流体包裹体样品进行荧光观测、显微测温、测盐等系统分析，并结合埋藏史研究认为，研究区中二叠统储集层中共发生过4期与油气成藏有关的流体活动：分别为距今170×106~165×106 a的中侏罗世中期，165×106~145×106 a的中侏罗世晚期，145×106~122×106 a的晚侏罗世晚期到早白垩世早期和22×106~7×106 a的中新世中期。其中晚侏罗世晚期到早白垩世早期为轻质油的主要成藏期，中新世中期为天然气的主要成藏期。

Abstract: This paper systematically analyzed the fluid inclusion samples from outcrop and QZ?5well of the Middle Permian in Jiaomuchaka area of Qiangtang basin using fluorescent indicator, microscopic temperature and salinity measures. The result shows that there are four eriods of thermal fluid events that are all relevant to the hydrocarbon accumulation. in this reservoir. The burial historical curves indicate hat the four large scale processes of hydrocarbon accumulation occurred in the Middle Middle Jurassic (170×106~165×106a) before present), the Late Middle Jurassic (165×106~145×106a), the Late Late Jurassic to the Early Early Cretaceous (145×106~122×106a) and the Middle Miocene (22×106~7×106a). The Late Late Jurassic to Early Early Cretaceous is the main period of light oil accumulation, and the Middle Miocene is the main period of natural gas accumulation

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