石油学报 ›› 2007, Vol. 28 ›› Issue (3): 8-12.DOI: 10.7623/syxb200703002

• 地质勘探 • 上一篇    下一篇

库车前陆盆地东秋里塔格区带盐相关构造特征

金文正1,2, 汤良杰1,2, 万桂梅1,2, 余一欣1,2, 王清华3, 杨文静3, 彭更新3, 雷刚林3   

  1. 1. 中国石油大学盆地与油藏研究中心, 北京, 102249;
    2. 中国石油大学石油与天然气成藏机理教育部重点实验室, 北京, 102249;
    3. 中国石油塔里木油田公司勘探开发研究院, 新疆库尔勒, 84100
  • 收稿日期:2006-04-18 修回日期:2007-01-04 出版日期:2007-05-25 发布日期:2010-05-21
  • 作者简介:金文正,男,1978年9月生,2001年毕业于中国地质大学(武汉),现为中国石油大学(北京)在读博士研究生,主要从事石油地质和含油气盆地分析方面的研究.E-mail:jwz20@163.com
  • 基金资助:
    国家自然科学基金项目(No.40472107和No.40172076)、国家重点基础研究发展规划(973)项目(2005CB422107、G1999043305)联合资助.

Characteristics of salt-related tectonics in the eastern Q iulitage tectonic belt of Kuche foreland basin

Jin Wenzheng1,2, Tang Liangjie1,2, Wan Guimei1,2, Yu Yixin1,2, Wang Qinghua3, Yang Wenjing3, Peng Gengxin3, Lei Ganglin3   

  1. 1. Basin and Reservoir Research Centre, China University of Petroleum, Beijing 102249, China;
    2. Key Laboratory for Hydrocarbon Accumulation Mechanism of the Ministry of Education, China University of Petroleum, Beijing 102249, China;
    3. Research Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla 840000, China
  • Received:2006-04-18 Revised:2007-01-04 Online:2007-05-25 Published:2010-05-21

摘要: 库车前陆盆地的东秋里塔格构造带新近系中广泛分布着厚层膏盐,典型地震剖面解释发现,盐上地层、盐层和盐下地层分别具有不同的构造样式和变形机理.分别进行的地质模型研究表明,盐上层构造地质模型主要有逆冲断层和断层传播褶皱、顶板反向逆冲断层、逆冲推覆体、盐上向斜等构造;盐层构造地质模型主要有盐枕构造、鱼尾构造、盐推覆构造等;盐下层构造地质模型主要有断层转折褶皱、背冲断块构造、Ⅰ型三角带构造、逆冲断块构造、逆冲断裂带等.盐上层、盐层和盐下层共同组成的构造样式有Ⅱ型三角带,具有明显的三位一体的构造特征.盐相关构造形成各种各样的盐相关构造圈闭,这些盐相关构造圈闭与阳霞凹陷烃源岩生气期相匹配,在盐下构造圈闭中形成大量的天然气藏.

关键词: 库车前陆盆地, 东秋里塔格构造带, 新近系, 盐相关构造, 地质模型, 天然气藏

Abstract: The Neogene in the eastern Qiulitage tectonic belt of Kuche foreland basin developed thick salt layer.The explanation of seismic profiles showed that the strata above salt layer,salt layer and strata below salt layer had different structural style and deformation mechanism.The geological models of the strata above salt layer include the thrust fault and fault propagation fold,roof plate reversal thrust fault,thrust drapes and syncline above salt layer.The geological models of salt layer contain the salt pillow,fish tail and salt nappe.The geological models of the strata below salt layer have the fault bend fold,pop-up,type-Ⅰ triangle belt and thrust fault.The structural type jointly formed by salt layer,strata above salt layer and strata below salt layer is the type-Ⅱ triangle belt.Salt-related tectonics formed many types of traps.The deformation stage of these traps matched the stage of gas generation and generated many gas reservoirs in the structural traps below salt layer.

Key words: Kuche foreland basin, eastern Qiulitage tectonic belt, Neogene, salt related tectonics, geological model, natural gas reservoir

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