新疆石油地质

新疆石油地质 ›› 2010, Vol. 31 ›› Issue (4): 444-446.

• 国外油气地质 • 上一篇    下一篇

波拿巴盆地石油地质特征与勘探潜力分析

逄林安1, 王志欣1, 朱光辉2, 康洪全2   

  1. 1.中国石油大学 盆地与油藏研究中心,北京 102249;
    2.中海石油 研究中心,北京 100027
  • 收稿日期:2010-01-18 修回日期:2010-01-18 出版日期:2010-08-01 发布日期:2020-10-19
  • 作者简介:逄林安(1986-),男,山东胶南人,在读硕士研究生,石油地质,(Tel)15101175865(E-mail)panglinzhen@163.com.
  • 基金资助:
    国家科技重大专项(2008ZX0503-002)

Petroleum Geology and Exploration Potential Analysis in Bonaparte Basin

PANG Lin-an1, WANG Zhi-xin1, ZHU Guang-hui2, KANG Hong-quan2   

  1. 1. Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China;
    2. Research Center, CNOOC, Beijing 100027, China
  • Received:2010-01-18 Revised:2010-01-18 Online:2010-08-01 Published:2020-10-19

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摘要： 波拿巴盆地经历了裂谷前或克拉通、北西向裂谷、北东向裂谷和被动大陆边缘发育阶段,形成了古生代北西向佩特列尔次盆和中生代北东向乌尔坎次盆、马里塔地堑、萨胡台地、阿什莫尔台地和伦敦德里隆起等主要的构造单元。发育下石炭统米里干斯组、二叠系凯令—海兰德贝组、中下侏罗统普罗佛组和上侏罗统下乌尔坎组等4 套主力烃源岩,以侏罗系普罗佛组为主要的储集层,具有利的生储盖组合关系。油气在平面上呈现“环凹分布”,石油主要分布在乌尔坎次盆、佩特列尔次盆和拉米纳利亚隆起,而天然气主要在萨胡台地和马里塔地堑聚集。截至2008 年底,发现石油(含凝析油)1.53×108m3,天然气6 790×108m3. 石油地质综合分析表明,该盆地具有很大的勘探潜力,乌尔坎次盆和马里塔地堑是有利的构造带,区域性不整合和地层岩性圈闭为有利区带。

关键词: 澳大利亚, 波拿巴盆地, 有利区带, 油气分布规律

Abstract: Bonaparte basin underwent the stages of pre-rifting or craton, northwest trending rifting, northeast trending rifting and passive continental margin development, forming the major tectonic units such as the Paleozoic northwest trending Petrel sub-basin and the Mesozoic northeast trending Vulcan sub-basin, Malita graben, Sahul platform, Ashmore platform and Londonderry uplift. Four chief source rocks in this basin are developed, namely Lower Carboniferous Milligans formation, Permian Keyling-Hylandbay formation, Lower-Middle Jurassic Plover formation and Upper Jurassic Lower Vulcan formation, dominated by Plover reservoir, which is of favorable sourcereservoir- cap rocks assemblage. In the plane, petroleum has the feature of wreath-sag distribution. Crude oil is mostly distributed in Vulcan sub-basin, Petrel sub-basin and Laminaria uplift, whereas Sahul platform and Malita graben contain bulk of the natural gas. By the end of 2008, 1.53×108m3 oil (including condensate) and 6 790×108m3 gas had been proved in this basin. The analysis of petroleum geology shows that Vulcan sub-basin and Malita graben are the favorable tectonic units and the regional unconformity and stratigraphic and lithologic traps are the most promising play.

Key words: Australia, Bonaparte basin, favorable zone, oil-gas distribution

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