The analysis of structural deformation characteristics in the Lower Yangtze area of South China is of great significance to petroleum exploration and development in this area. Based on the geological and geophysical data, the structural deformation characteristics of the Lower Yangtze area are systematically discussed. Structural physical simulation experiments are further conducted to model the typical structural deformation systems and to discuss their dynamic mechanism. The results show that the hedging system is characterized by “asymmetric opposite hedging in the south and north” of the study area. The structural deformation on the northwest of the hedging system mainly occurred in the Middle-Late Triassic and was controlled by southeaster compression in the Indo-Chinese Period. The deformation of southeastern side of the hedging system mainly occurred in Middle-Late Jurassic and was controlled by northwester strong compression in the early period of the Yanshanian Movement. According to the development and evolution sequence of the hedging structure system in the Lower Yangtze area, Wuxi area has weak structural deformation and has not undergone intensive transformation in later periods. Also, the other factors of petroleum accumulation, including the source rock, reservoir, and sealing conditions, are superior, which make a potential area for exploration.

中文翻译：

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华南下扬子地区构造变形特征及构造物理模拟试验

华南下扬子地区构造变形特征分析对该区油气勘探开发具有重要意义。基于地质和地球物理资料，系统讨论了下扬子地区的构造变形特征。进一步进行结构物理模拟实验以模拟典型的结构变形系统并讨论其动力学机制。结果表明，套期保值体系具有研究区“南北不对称对冲”的特点。围护体系西北部的构造变形主要发生在中-晚三叠世，在印支时期受东南挤压控制。围护体系东南侧的变形主要发生在中-晚侏罗世，并在燕山运动初期受西北强挤压控制。根据下扬子地区套期构造体系的发展演化序列，无锡地区构造变形较弱，后期未发生强烈改造。烃源岩、储集层、封闭条件等油气成藏条件优越，具有勘探潜力。无锡地区构造变形较弱，后期未发生强烈改造。烃源岩、储集层、封闭条件等油气成藏条件优越，具有勘探潜力。无锡地区构造变形较弱，后期未发生强烈改造。烃源岩、储集层、封闭条件等油气成藏条件优越，具有勘探潜力。