石油与天然气地质 ›› 2013, Vol. 34 ›› Issue (2): 207-214.doi: 10.11743/ogg20130211

• 盆地构造 • 上一篇    下一篇

东营凹陷王家岗构造带孔店组构造特征及其控藏作用

宋国奇1,2, 李继岩1, 贾光华3, 王东旭3   

  1. 1. 中国石油大学 地球科学与技术学院,山东 青岛 266555;
    2. 中国石化 胜利油田分公司,山东 东营 257000;
    3. 中国石化 胜利油田分公司 地质科学研究院,山东 东营 257000
  • 收稿日期:2012-03-02 修回日期:2012-12-02 出版日期:2013-04-28 发布日期:2013-05-02
  • 第一作者简介:宋国奇(1957—),男,博士、教授级高级工程师,油气资源勘探。
  • 基金项目:

    国家油气科技重大专项(2008ZX05051);中国石油大学(华东)自主创新科研计划项目(11CX06004A);中国石油大学(华东)自主创新计划项目(10CX04002A)。

Structural characteristics and its control on hydrocarbon accumulation of the Kongdian Formation in the Wangjiagang structural zone,Dongying Depression

Song Guoqi1,2, Li Jiyan1, Jia Guanghua3, Wang Dongxu3   

  1. 1. Faculty of Geo-Resources and Information, China University of Petroleum, Qingdao, Shandong 266555, China;
    2. Shengli Oilfield Company, SINOPEC, Dongying, Shandong 257000, China;
    3. Geological Research Institute, Shengli Oilfield Company, SINOPEC, Dongying, Shandong 257000, China
  • Received:2012-03-02 Revised:2012-12-02 Online:2013-04-28 Published:2013-05-02

PDF (PC)

844

被引次数

5

摘要：

针对东营凹陷王家岗构造带孔店组构造特征复杂、构造演化过程不明确等问题,利用地震、测井、录井、岩心等资料,运用断层玫瑰花图、平衡剖面法、断层封闭性分析法等技术手段,解析了王家岗构造带孔店组构造特征及其形成演化规律,揭示了其对油气成藏的控制作用。结果表明:断层主要形成于孔店组沉积时期,由于形成机制的分异性,不同走向断层活动期次具有较大差异。断层平面表现为梳状、平行式、雁列式组合型式,剖面发育阶梯状、"Y"字型、"屋脊"式组合类型。受控于郯庐断裂带和基底走滑断层形成的褶皱带经历"形成期—加剧期—定型期"3个阶段,被早期或同期断层切割,呈现多个断鼻"串珠状"分布的特点。该构造带对油气成藏具有重要的控制作用,是油气运聚最有利指向区,轴部储层物性好于两翼,断层封闭与输导性能是油气运移和聚集的关键因素,断层长度、褶皱带宽度以及储层物性决定了油气平面分布范围,断层构造样式和褶皱带幅度共同控制了油气空间分布规律。

关键词: 断层, 褶皱带, 控藏作用, 构造特征, 王家岗构造带, 东营凹陷

Abstract:

The Kongdian Formation in Wangjiagang structural zone in Dongying depression is complex in structural characteristics,and its tectonic evolution process is still poorly understood.To solve these problems,various data including seismic,logging and core were integrated to analyze the structural characteristics of Kongdian Formation,summarize its regularity of formation and evolution,and reveal the control effect on hydrocarbon accumulation with rose diagram of faults,balanced cross section and fault-sealing analysis methods.The following results were obtained.Most faults were formed in the DongyingKongdian period.Owing to the differences of formation mechanisms,faults with different trends are different in timing and configurations.On plane view,the faults show configurations such as comb-like,parallel or echelon.While on sectional view,they show configurations such as step,"Y" shape or roof-like.Folded belts which were controlled by Tan-Lu fault zone and basement strike slip fault system have undergone three evolutionary stages including formation stage,intensification stage and finalization stage.During this period,the folded belts were cut by earlier or growth faults,resulting in moniliform fault-nose distribution.The structural zone controlled hydrocarbon pooling.It is the most favorable destination of hydrocarbon migration and has better physical properties of reservoir in the axial region than those in two wings.Fault sealing and carrier beds are the key factors controlling hydrocarbon migration and accumulation.The length of fault,the width of folded zone and reservoir physical property determine the plane distribution area of oil/gas,while the fault configuration and amplitude of fold zone jointly control the spatial distribution of oil/gas.

Key words: fault, fold zone, control on hydrocarbon accumulation, structural characteristics, Wangjiagang structural zone, Dongying Depression

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