石油与天然气地质 ›› 2019, Vol. 40 ›› Issue (2): 262-270.doi: 10.11743/ogg20190205

• 油气地质 • 上一篇    下一篇

渤海湾盆地东营凹陷扭张断裂成因模式及控藏作用

张伟忠1,2, 张云银2, 查明1, 曲志鹏2, 于景强2, 张林2, 何畅2   

  1. 1. 中国石油大学(华东) 地球科学与技术学院, 山东 青岛 266580;
    2. 中国石化 胜利油田分公司 物探研究院, 山东 东营 257022
  • 收稿日期:2018-03-07 修回日期:2018-12-03 出版日期:2019-04-28 发布日期:2019-01-23
  • 通讯作者: 张云银(1969-),男,博士、教授级高级工程师,地震地质综合研究。E-mail:zhangyunyin.slyt@sinopec.com。 E-mail:zhangyunyin.slyt@sinopec.com
  • 作者简介:张伟忠(1985-),男,博士、副研究员,地质资源与地质工程。E-mail:zhangwzh258.slyt@sinopec.com。
  • 基金资助:
    国家科技重大专项(2017ZX05072);中国石化重点科技攻关项目(P15084)。

Genetic model of transtensional faults in Dongying Depression,Bohai Bay Basin, and its controls over hydrocarbon accumulation

Zhang Weizhong1,2, Zhang Yunyin2, Zha Ming1, Qu Zhipeng2, Yu Jingqiang2, Zhang Lin2, He Chang2   

  1. 1. School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266580, China;
    2. Geophysical Research Institute of Shengli Oilfield Branch Company, SINOPEC, Dongying, Shandong 257022, China
  • Received:2018-03-07 Revised:2018-12-03 Online:2019-04-28 Published:2019-01-23

摘要: 扭张断裂构造特征的精细刻画及控藏作用的分析是我国东部高成熟油田精细化油藏评价的重要方向。基于扭张断裂几何学特征及构造演化特征的分析,开展了渤海湾盆地东营凹陷扭张断裂成因模式的研究,建立了东营凹陷扭张断裂控藏模式。研究表明,东营凹陷扭张断裂可划分为帚状、侧接及雁列3种类型。帚状扭张断裂表现为先张后扭的特征,由单条断裂逐渐向帚状演化;侧接扭张断裂表现为先扭后张的特征,由雁列式向侧接演化;雁列扭张断裂表现为边扭边张的特征,由早期单条断裂向雁列式扭张断裂演化。扭张断裂的差异演化形成了启闭耦合的控藏模式,为扭张型盆地内的精细油藏勘探开发提供了有利的指导。

关键词: 构造演化, 成因模式, 控藏作用, 扭张断裂, 东营凹陷, 渤海湾盆地

Abstract: Study on the structural characteristics of transtensional faults and their controls on hydrocarbon accumulation is of great significance to the fine reservoir evaluation in the highly-explored areas of eastern China.The genetic model of transtensional faults in the Dongying Depression,Bohai Bay Basin,was studied,and the accumulation model controlled by transtensional faults in this area was established,on the basis of the geometrical and evolutionary characteristics of the transtensional faults.Research shows that,the transtensional faults in the Dongying Depression can be divided into three types,the broom-shaped,en echelon and juxtaposition faults.The broom-shaped transtensional faults are characterized by early extension and later transformation,with the structural style evolving from a single fault to a broom-shaped fault zone.While the juxtaposition transtensional faults feature early transformation and later extension,with its structural style evolving from the en echelon to the juxtaposition type.The en echelon transtensional faults are characterized by simultaneous transformation and extension,with its structural style evolving from a single fault at early stages to the en echelon fault zone.The differential evolution of transtensional faults leads to the model of controls over hydrocarbon accumulation with open-close coupling,providing a guidance for the fine exploration and development of reservoirs in transtensional basins.

Key words: tectonic evolution, genetic model, control over hydrocarbon accumulation, transtensional fault, Dongying Depression, Bohai Bay Basin

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