新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (1): 110-113.

• 国外油气地质 • 上一篇    下一篇

亚诺斯盆地油气地质特征及有利区带预测

朱毅秀1,2, 刘洛夫2, 金强3   

  1. 1.中国地质大学,北京100083;
    2.石油大学,北京102249;
    3.石油大学,山东东营257061
  • 收稿日期:2003-06-04 出版日期:2004-02-01 发布日期:2020-08-06
  • 作者简介:朱毅秀(1966-), 男,湖北蕲春人,工程师,在读博士研究生,石油地质。联系电话:010-89733427
  • 基金资助:
    中国石油天然气集团公司重点科技项目，跨国勘探开发的目标选择和评价研究（编号:970213-02-05)

Petroleum Geology and Favorable Zones for Hydrocarbon Exploration in Llanos Basin, Colombia

ZHU Yi-xiu1,2, LIU Luo-fu2, JIN Qiang3   

  1. 1. China University of Geosciences, Beijing 100083, China;
    2. University of Petroleum, Beijing 102249, China;
    3. University of Petroleum, Dongy ing, Shandong 257061, China
  • Received:2003-06-04 Online:2004-02-01 Published:2020-08-06

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摘要： 对哥伦比亚 亚诺斯盆地的地层与沉积、构造与演化以及石油地质等特征进行了综合研究。亚诺斯盆地的主要烃源岩为瓜达卢佩组K2)的海相页岩和碳酸盐岩，主要油气储集层为上白垩统至渐新统的滨浅海相和河流-三角洲相石英砂岩,区域性盖层为中新世莱昂组厚层页岩,油气主要运移期和聚集期发生在中新世以后,油气圈闭分为第三系圈闭群、白垩系圈闭群和逆掩前缘带第三系与白垩系复合圈闭群，圈闭形成期是晚白垩世至中新世早期。综合分析认为，亚诺斯逆掩前缘带为有利目标区,阿瑞阿培地堑与巴里纳斯地区为较为有利的目标区，亚诺斯坳陷与阿劳卡地堑为具备一定勘探潜力的目标区。

关键词: 哥伦比亚, 亚诺斯盆地, 前陆盆地, 白垩系, 第三系, 油气勘探

Abstract: An integrated study on lithology, sedimentology, structural evolution and petroleum geology in Llanos basin of Colombia is made. Thechief source rocks are Guadalupe (K2) marine shale and carbonate rocks, major reservoir rocks are the shore-river-delta quartzose sandstone ofUpper Cretaceous to Oligocene, and regional cap rocks are Miocene Leon thick shale. The principal period for hydrocarbon migration and accu-mulation occur after the Miocene. The traps are classified into three ty pes: Tertiary trap group, Cretaceous trap group and composite trap groupbetween Tertiary and Cretaceous in overthrust frontal belt. Late Cretaceous to Early M iocene is the period of these traps formation. It is suggest-ed by comprehensive analysis that Llanos overthrust frontal belt is the favorable area for petroleum exploration, followed by the Apiari grabenand the Barinas depression, and the Llanos depress ion and Arauca graben are of certain potentials for hydrocarbon prospecting.

Key words: Colombia, Llanos basin, foreland basin, Gretaceous, Tertiary, hydrocarbon exploration

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