辽河盆地欧利坨子地区粗面岩裂缝发育特征及控制因素

发布时间：2018-06-01 05:51

本文选题：辽河盆地 + 欧利坨子　；参考：《中国石油勘探》2017年05期

【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。
[Abstract]:In order to analyze the formation mechanism of coarse rock reservoir to guide oil and gas exploration and development, based on core, thin slice and imaging logging data, The characteristics and controlling factors of coarse rock fractures formed in Oulituozi area of Liaohe Basin are studied. The research results show that there are 4 kinds of cracks in coarse rock in the study area, such as explosive fracture, shrinkage joint, structural joint and dissolution joint, which are developed into four kinds of cracks, such as blast fracture, shrinkage joint and solution joint, and the filling degree of the shrinkage and solution joints is high, and most of them are invalid fractures. Structural fracture is the most important factor to control the degree of fracture development, and it is an important factor to transform coarse rock into reservoir. There is a positive correlation between the thickness of the coarse rock monolayer and the degree of fracture development in the front zone of the upper face of the reverse fault and the area with high degree of fracture development in the vicinity of the main fault. The greater the thickness of the single layer is, the higher the degree of fracture development is.
【作者单位】：中国石油辽河油田公司勘探开发研究院;
【基金】：国家自然科学基金项目“高煤级煤层气储层应力敏感性及控制机理”(41172145) 中国石油天然气股份有限公司科技专项“辽河油田原油千万吨持续稳产关键技术研究”(2012E-3001)
【分类号】：P618.13

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