新疆石油地质

新疆石油地质 ›› 2007, Vol. 28 ›› Issue (3): 296-299.

• 油气勘探 • 上一篇    下一篇

海拉尔盆地乌尔逊凹陷石油地质特征

马中振1, 庞雄奇1, 魏建设2, 李明刚1   

  1. 1.中国石油大学 盆地与油藏研究中心, 北京 102249;
    2.西安市 地质矿产研究所, 西安 710054
  • 收稿日期:2006-09-25 修回日期:2006-11-28 出版日期:2007-06-01 发布日期:2020-07-31
  • 作者简介:马中振(1980-), 男, 辽宁熊岳人, 在读博士研究生, 石油地质,(Tel) 010-89733569(E-mail) mazz1980@163.com.

Petroleum Geology of Wuerxun Sag in Hailaer Basin

MA Zhong-zhen1, PANG Xiong-qi1, WEI Jian-she2, LI Ming-gang1   

  1. 1. Research Center of Basin and Reservoir, China University of Petroleum, Beijing 102249, China;
    2. Xi'an Institute of Geology and Mineral Resources, Xi'an, Shaanxi 710054, China
  • Received:2006-09-25 Revised:2006-11-28 Online:2007-06-01 Published:2020-07-31

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摘要： 乌尔逊凹陷是海拉尔盆地贝尔湖坳陷的一个二级构造单元,主要发育下白垩统。南一段为主要烃源岩层,南二段是良好储集层,大一段泥岩封闭性好、分布广是良好的区域性盖层,三者构成一套下生上储的正常生储盖组合。油气成藏主控因素研究表明,凹陷油气平面分布受有效生烃中心控制,纵向受主力烃源岩层控制,断裂带附近发育的扇三角洲和湖底扇砂体是良好的油气储集体,巴彦塔拉和乌东地区是下步有利勘探地区。

关键词: 海拉尔盆地, 乌尔逊凹陷, 石油地质, 特征

Abstract: Wuerxun sag is a second-rank structural unit with Lower Cretaceous in Beierhu depression in Harlaer basin, in which the source rocks are mainly distributed in its Nan-1 member, the reservoir rocks in its Nan-2 member and its well sealed regional cap rocks in Da-1 member, shaping a normal sequence's source-reservoir-caprock assemblage. The hydrocarbon accumulation-controlled factors analysis shows that the hydrocarbon distribution in this sag is controlled by effective hydrocarbon-generating center in plane and by major source rocks in vertical; the fan delta and sublacustrine fans around the fault belt are good reservoirs. Bayantala structural belt and Wudong area are the target areas for further exploration.

Key words: Hailaer basin, Wuerxun sag, petroleum geology, feature

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