西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (1): 19-22.DOI: 10.3863/j.issn.1674-5086.2009.01.005

• 地质勘探 • 上一篇    下一篇

库车东秋里塔格构造变形期与生烃期匹配关系

金文正a,b 汤良杰a,b 万桂梅a,b 余一欣a,b   

  1. 中国石油大学:a.盆地与油藏研究中心,b.油气资源与探测国家重点实验室,北京昌平102249
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-02-20 发布日期:2009-02-20

THE MATCHING RELATIONSHIP BETWEEN STRUCTURAL DEFORMATION STAGE AND HYDROCARBON GENERATION STAGE IN EASTERN QIULITAGE TECTONIC BELT OF KUQA DEPRESSION

JIN Wen-zhenga,b TANG Liang-jiea,b WAN Gui-meia,b YU Yi-xina,b

  

  1. China University of Petroleum:a.Basin and Reservoir Research Center,b.State Key Laboratory of Petroleum Resource and Prospecting,Changping Beijing 102249,China)JOURNAL OF SOUTHWEST PETROLEUM UNIVERSITY(SCIENCE & TECHNOLOGY EDITION),VOL.31,NO.1,19-22,2009(ISSN 1674-5086,in Chinese
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-02-20 Published:2009-02-20

摘要:

中生代以来库车拗陷东秋里塔格构造带经历了复杂的构造演化,形成了复杂的地质构造,阳霞凹陷的烃源岩同样经历了复杂的演化过程。烃源岩生烃期与构造圈闭形成期的匹配关系,对油气成藏的意义重大,在构造圈闭形成期或之后形成的油气有利于聚集成藏。通过平衡剖面分析和生长地层分析,厘定了库车拗陷东秋里塔格构造带主要构造活动期是上新世库车期和第四纪。利用PRA软件对阳霞凹陷阳1井和人工1井进行了烃源岩成熟度史数值模拟,结果表明,从上新世库车期至今,阳霞凹陷三叠系烃源岩和侏罗系部分烃源岩分别处于生湿气—干气阶段和生凝析气阶段,与东秋里塔格构造带主要构造活动期存在良好的匹配关系。

关键词: 东秋里塔格构造带, 构造变形期, 生烃史, 平衡剖面, 生长地层

Abstract:

In eastern Qiulitage Tectonic Belt of Kuqa Depression,there exist complex geological structures as the result of the complicated tectonic evolution,the source rocks in Yangxia Sag have also experienced complex evolution since Mesozoic.It is important to hydrocarbon accumulation that the generation time of source rocks matches the formation time of structural traps.The hydrocarbon generated at the same time as or after the structural traps form is favorable for accumulating.Through analyzing the balanced profile and the growth strata,it is found that the main stage of tectonic movement of the Eastern Qiulitage Tectonic Belt in Kuqa depression was from Kuqa stage of Pliocene to Quaternary.Then the maturity history of source rocks of Triassic and Jurassic in the Yang well 1& artificial well1 is simulated,and it is found that Triassic source rocks generated wet gas and dry gas and Jurassic source rocks generated condensate gas from Kuqa stage of Pliocene to present.Thus,in the structural deformation period,there is a good matching relationship with the hydrocarbon generation stage of source rocks in Yangxia sag,and the structural traps in the studied area should have captured massive gas that generated in Yangxia Sag.

Key words: Eastern Qiulitage tectonic belt, structural deformation stage, hydrocarbon generation history, the balanced profile, the growth strata

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