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中文摘要：
为了分析粗面岩储层形成机制以指导油气勘探与开发,基于岩心、薄片以及成像测井等资料,对辽河盆地欧利坨子地区水下环境形成的粗面岩裂缝发育特征及其控制因素进行了研究。研究成果表明：（1）研究区粗面岩发育炸裂缝、收缩缝、构造缝和溶蚀缝等4种裂缝;（2）炸裂缝、收缩缝、溶蚀缝充填程度较高,大部分是无效裂缝,构造缝是将粗面岩改造为储层的重要因素;（3）构造位置是控制裂缝发育程度最重要的因素,断裂集中发育区、逆断层上盘前锋带以及主干断裂附近是裂缝发育程度较高的区域;（4）粗面岩单层厚度与裂缝发育程度表现为正相关性,单层厚度越大,裂缝发育程度越高。
英文摘要：
This paper studies the development characteristics and control factors of trachyte fractures developed in the underwater environment in the Oulituozi region, the Liaohe Basin, using cores, thin sections and imaging logging data etc., with the intent to analyze the formation mechanism of trachyte reservoirs for supporting oil and gas exploration and development. The study results show： （1） four types of fractures including blasting fractures, shrinkage fractures, tectonic fractures and dissolution fractures are developed in the trachyte; （2） blasting fractures, shrinkage fractures and dissolution fracturesare highly filled, making most of them ineffective; and tectonic fractures play the major role to reform the trachyte to reservoir; （3） tectonic location is an important factor that controls the development of fractures which almost occur in a well-developed fault zone, the frontal belt of the upthrown side of a reverse fault and near major faults; （4） the single-layer thickness is positively related to the fracture development, that is, the thicker the single layer is, the more developed fractures are in the trachyte.
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