中国石油勘探 ›› 2010, Vol. 15 ›› Issue (1): 11-15,2.

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三塘湖盆地马朗凹陷卡拉岗组火山岩油藏主控因素及勘探方向

李光云,毛世权,陈凤来,唐龙,胡长春   

  1. 中国地质大学(北京);中国石油吐哈油田公司
  • 出版日期:2010-02-15 发布日期:2010-02-15
  • 基金资助:
    中国石油吐哈油田公司“三塘湖盆地油气成藏条件研究及战略目标优选”(TH20080105)部分内容

Key Controlling Factors and Exploration Direction of Volcanic Reservoir in Kalagang Formation of Malang Sag in Santanghu Basin

Li Guangyun,Mao Shiquan,Chen Fenglai,Tang Long and Hu Changchun   

  1. Li Guangyun 1,2,Mao Shiquan 2,Chen Fenglai 2,Tang Long 2,Hu Changchun 2 1.China University of Geosciences,Beijing 100083;2.PetroCina Tuha Oilfield Company,Hami City,Xinjiang Uygur Autonomous Region 839009
  • Online:2010-02-15 Published:2010-02-15

摘要: 为了搞清三塘湖盆地马朗凹陷上石炭统卡拉岗组火山岩油藏成因和分布,从分析火山岩油藏地质特征和控制油藏形成的因素入手,指出火山岩岩相、优质烃源岩、断裂和不整合是油藏形成的主控因素。上石炭统哈尔加乌组优质烃源岩为卡拉岗组火山岩储层提供了充足油源;不整合和广泛发育的断裂不仅为火山岩储层形成提供了条件,同时也是下部油气向上运移的通道。下步油气勘探应在二叠系条湖组剥蚀线和上石炭统卡拉岗组剥蚀线之间近水体的火山岩风化壳发育区展开,有利区带为牛东东南缘、马北构造带和马东构造带。

关键词: 三塘湖盆地, 马朗凹陷, 卡拉岗组, 火山岩油藏, 主控因素

Abstract: To find out the genesis and distribution of volcanic reservoir in Kalagang Formation of Upper Carboniferous System of Malang sag in Santanghu Basin, from the analysis of the geologic characteristics of volcanic reservoir and the controlling factors of reservoir formation, it is pointed out that the key controlling factors of reservoir formation are volcanic facies, high-quality hydrocarbon source rock, fracture and unconformity. Highquality hydrocarbon source rock of Haerjiawu Formation of Upper Carboniferous System provides rich oil source for the volcanic reservoir of Kalagang Formation, unconformity and widely-developed fractures do not only provide conditions for the formation of volcanic reservoir, but they are the channel of upward migration of lower oil and gas. Further oil and gas exploration should be carried out in the volcanic rock weathering crust development area near aquifer region between the nip-out lines of Permian Tiaohu Formation and Upper Carboniferous Kalagang Formation. The southeast edge of Niudong area, Mabei structural zone, and Madong structural zone are favorable for oil and gas exploration

Key words: Santanghu Basin;Malang sag, Kalagang Formation, volcanic reservoir, key controlling factor

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