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现代地质 ›› 2022, Vol. 36 ›› Issue (04): 1022-1034.DOI: 10.19657/j.geoscience.1000-8527.2022.203

• 油气勘探 • 上一篇    下一篇

塔中隆起走滑断裂分层变形机制研究的物理模拟实验

彭梓俊1,2(), 冯磊3, 罗彩明3, 陈石1,2(), 宋兴国1,2, 梁鑫鑫1,2, 周小蓉1,2   

  1. 1.中国石油大学(北京) 油气资源与探测国家重点实验室,北京 102249
    2.中国石油大学(北京) 地球科学学院,北京 102249
    3.中国石油塔里木油田分公司勘探开发研究院,新疆 库尔勒 841000
  • 收稿日期:2021-11-05 修回日期:2022-03-15 出版日期:2022-08-10 发布日期:2022-09-09
  • 通讯作者: 陈石
  • 作者简介:陈 石,男,副教授,1986年出生,主要从事大地构造、含油气盆地构造解析方向研究。Email: chenshi4714@163.com
    彭梓俊,男,硕士,1997年出生,地质工程专业,主要从事油区构造解析方向研究。Email: 1530701086@qq.com

Physical Simulation Experiment on Stratification Strike-slip Fault Deformation Mechanism in the Tazhong Uplift

PENG Zijun1,2(), FENG Lei3, LUO Caiming3, CHEN Shi1,2(), SONG Xingguo1,2, LIANG Xinxin1,2, ZHOU Xiaorong1,2   

  1. 1. State Key Laboratory of Petroleum Resources and Prospecting,China University of Petroleum, Beijing 102249, China
    2. Basin and Reservoir Research Center, China University of Petroleum, Beijing 102249, China
    3. Research Institute of Petroleum Exploration and Development, PetroChina Tarim Oilfield Company, Korla, Xinjiang 841000, China
  • Received:2021-11-05 Revised:2022-03-15 Online:2022-08-10 Published:2022-09-09
  • Contact: CHEN Shi

摘要:

塔中隆起位于塔里木盆地中央隆起带中部,是塔里木盆地油气勘探的重点区块之一。塔中地区奥陶系碳酸盐岩走滑断裂发育,控储控藏作用明显,走滑断裂成因机制的研究对于油气勘探开发十分重要。塔里木盆地塔中隆起走滑断裂具有典型的分层变形特点,为了明确塔中隆起走滑断裂分层变形机制的主控因素设计了4组物理模拟实验模型。实验结果表明:走滑断裂分层变形特征的形成主要与垂向上地层性质变化(分层)和多期活动(分期)有关,分层与分期都能造成走滑断裂产生分层变形的特征,塔中走滑断裂分层差异变形特征,是由垂向上地层岩性差异性和构造活动多期性共同造成的。

关键词: 走滑断裂, 分层变形, 多期活动, 构造物理模拟, 塔里木盆地

Abstract:

The Tazhong uplift, located in the middle of the central uplift belt of Tarim basin, is a key block for oil and gas exploration. Strike-slip faults are well developed in Ordovician carbonate rocks at Tazhong, and the role of reservoir control is obvious. The study on the strike-slip faulting mechanism is very important for oil and gas exploration and development. Strike-slip faults in the Tazhong uplift are featured by typical delamination. To clarify the main controlling factors of delamination mechanism of these strike-slip faults, four groups of physical simulation experimental models were designed. The experimental results show that the formation of strike-slip fault delamination characteristics is mainly related to vertical stratigraphic property changes (delamination) and multi-stage activities (stages). Delamination and staging could form the delamination characteristics of these strike-slip faults. The delamination differential deformation characteristics of the Tazhong strike-slip faults may have caused by the different vertical stratigraphic lithology and multi-stage tectonic activity.

Key words: strike-slip faults, delamination deformation, multiperiodic activity, structural-physical simulation, Tarim Basin

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