石油与天然气地质 ›› 2012, Vol. 33 ›› Issue (5): 695-704.doi: 10.11743/ogg20120505

• 油气地质 • 上一篇    下一篇

南堡凹陷构造型油气藏分布主控因素及预测方法

黄曼宁1,2, 董月霞3, 庞雄奇1,2, 郝海江1, 郭继刚1,2   

  1. 1. 中国石油大学 油气资源与探测国家重点实验室, 北京 102249;
    2. 中国石油大学 盆地与油藏研究中心, 北京 102249;
    3. 中国石油 冀东油田 勘探开发研究院, 河北唐山 063004
  • 收稿日期:2012-05-24 修回日期:2012-08-11 出版日期:2012-10-28 发布日期:2012-11-15
  • 第一作者简介:黄曼宁(1988-),女,硕士研究生,油气成藏机理与分布规律。
  • 基金项目:

    国家重点基础研究发展计划("973"计划)项目(2011CB201102);国家科技重大专项(2011ZX05007-002-04)。

Controlling factors of structural reservoir distribution and its prediction method in Nanpu depression, Bohai Bay Basin

Huang Manning1,2, Dong Yuexia3, Pang Xiongqi1,2, Hao Haijiang1, Guo Jigang1,2   

  1. 1. State Key Laboratory of Petroleum Resource and Prospecting, China University of Petroleum, Beijing 102249, China;
    2. Research Center of Basins and Reservoirs, China University of Petroleum, Beijing 102249, China;
    3. Research Institute of Exploration and Development, Jidong Oilfield, PetroChina, Tangshan, Hebei 063004, China
  • Received:2012-05-24 Revised:2012-08-11 Online:2012-10-28 Published:2012-11-15

摘要:

渤海湾盆地南堡凹陷具有良好的油气勘探前景,已发现的油气藏多为构造型油气藏,但油气资源的分布特征不明确,无法有效地指导勘探。通过分析,揭示出地质相、流体势和烃源灶是南堡凹陷油气分布的3个主控因素。应用相-势-源复合的方法,对南堡凹陷的油气分布特征进行研究。研究表明:地质相控油气作用的基本模式为"优相-高孔渗"控藏,流体势控油气作用的基本模式为"低势"控藏,烃源灶控油气作用的基本模式为"近源"控藏。在此基础上,建立了"近源-优相-低势"控藏的综合模式,并运用该模式对南堡凹陷的油气分布进行了预测。结果表明:背斜类油气藏的潜在勘探目标位于北堡构造带的Ⅰ级有利区和南堡4号构造带的Ⅱ级有利区;断块类油气藏的潜在勘探目标位于北堡构造带的Ⅱ级有利区、南堡3号构造带的Ⅱ级有利区、南堡4号构造带的Ⅱ级有利区和南堡5号构造带的Ⅲ级有利区。

关键词: 地质相, 流体势, 烃源灶, 构造型油气藏, 南堡凹陷, 渤海湾盆地

Abstract:

Nanpu depression in Bohai Bay Basin has large petroleum exploration potential,and most of the reservoirs discovered in the depression are of structural type.However,the distribution pattern of petroleum resources is still unclear,so it is diffficult to effectively develop petroleum exploration.Geofacies,fluid potential and hydrocarbon kitchen are believed to be main factors controlling hydrocarbon distribution in Nanpu depression.Geofacies controlls hydrocarbon distribution by "favorable facies combined with high porosity and permeability" pattern, fluid potential controlls by "low potential" pattern,and hydrocarbon kitchen controlls by "near source" pattern.Based on these patterns,we established a comprehensive hydrocarbon accumulation model of "near source-favorable facies-low potential",which was applied to predict petroleum accumulation distributioin in Nanpu depression.Potential anticlinal reservoirs may occur in the first-order favorable area in Beipu structural belt and the second-order favorable area in Nanpu No.4 structural belt,whereas potential fault-block reservoirs may occur in the second-order favorable area in Beipu structural belt,second-order favorable area in Nanpu No.3 structural belt,second-order favorable area in Nanpu No.4 structural belt and third-order favorable area in Nanpu No.5 structural belt.

Key words: geofacies, fluid potential, hydrocarbon kitchen, structural reservoir, Nanpu depression, Bohai Bay Basin

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