中国石油勘探 ›› 2011, Vol. 16 ›› Issue (4): 23-28,36,3.

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鄂尔多斯盆地镇泾区块长8油层成藏过程分析

李松,尹伟,刘震,潘高峰   

  1. 中国石化石油勘探开发研究院;中国石油大学(北京)石油天然气成藏机理教育部重点实验室
  • 出版日期:2011-08-15 发布日期:2011-08-15
  • 基金资助:
    国家重大科技专项“中西部重点盆地碎屑岩领域油气富集规律与主控因素”(2008ZX05002-006-004)

Hydrocarbon Accumulation of Chang 8 Oil Layer in Zhenjing Area, Ordos Basin

Li Song,Yin Wei,Liu Zhen and Pan Gaofeng   

  1. Li Song1,Yin Wei1,Liu Zhen2,Pan Gaofeng2 1.Petroleum Exploration & Production Research Institute,SINOPEC,Beijing 100083;2.MOE Key Laboratory for Hydrocarbon Accumulation,China University of Petroleum,Beijing 102249
  • Online:2011-08-15 Published:2011-08-15

摘要: 鄂尔多斯盆地镇泾区块位于天环向斜南端,为中国石化探区主要含油气区块。镇泾区块的岩性圈闭形成时间、生烃时间以及成藏时间具有良好的时空配置关系,有利于岩性油气藏的形成。镇泾区块的动态成藏过程主要由构造演化特征及圈闭演化特征控制:长8地层由成藏前的北东倾向向成藏后的南西方向翻转。油气藏遭受了调整,由局部砂体凸起部位沿砂体方向向构造高部位持续运移;长8地层由成藏前未形成圈闭至成藏后形成了有利的圈闭窗口,长8地层有利于油气的保存与产出。

关键词: 成藏过程, 成藏期次, 动态成藏, 圈闭, 镇泾区块, 鄂尔多斯盆地

Abstract: Zhenjing block of Ordos Basin, located in the south of Tianhuan syncline, is the principal hydrocarbon area of SINOPEC. There is a good space-time correlation among lithologic traps formation time, hydrocarbon generation time and accumulation time in the area, which is favorable for lithologic reservoir formation. The dynamic accumulation process is mainly controlled by the tectonic evolution and trap evolution: Chang 8 layer was reversed from northeast sloping to southwest sloping. Reservoirs are subjected to adjustment, continuing migration from convex parts of sand body to the tectonic high points. According to trap evolution of pre-accumulation to current period, favorable traps are formed from Chang 8 layer, which is favorable for reserving and yielding oil and gas.

Key words: accumulation process, accumulation stage, dynamic accumulation, trap, Zhenjing block, Ordos Basin

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