【摘要】 从成因角度将徐深气田徐东地区营城组一段火山岩储层裂缝划分为构造裂缝、冷凝收缩裂缝、炸裂缝、溶蚀裂缝、缝合缝、风化裂缝等多种类型。根据动静结合的思路,综合岩心、镜下薄片、常规和FMI测井资料、地震等多信息以及地震相干分析和蚂蚁追踪等技术,对各类型裂缝发育特征进行详细表征。结果表明,上述井震资料的结合可以完成火山岩储层裂缝表征,宏观上沿着徐东地区徐中断裂和徐东断裂裂缝最为发育,大致呈近SN向展布。微观上在发育SN向靠近断裂带裂缝的同时,还发育众多EW向或近EW向的裂缝。对裂缝成因机制分析,研究区目的层火山岩储层裂缝成因影响因素包括构造作用、火山岩性、火山岩体、火山岩相和成岩作用等,其中以构造作用和成岩作用为主。更多还原

【Abstract】 The volcanic reservoir fractures of the Member 1 of Yingcheng Formation in Xudong Area of Xushen Gas Field are divided according to their origins into tectonic fractures,condensation contracted fractures,exploded fractures,corrosion fractures,stitched fractures and weathering fractures.Synthesizing multiple sets of information from cores,microsections and FMI logging data and using seismic variance and ant tracking technology,we described the characteristics of all kinds of fractures in detail.The results indicated that fractures developed along Xuzhong Faults and Xudong Faults in NS direction in macroscopic view.And many fractures developed along EW direction in microcosmic view at the same time.The analysis of genetic mechanisms of fractures suggested that the fractures of volcanic reservoir of the Member 1 of Yingcheng in Xudong Area of Xushen Gas Field were affected by tectonic processes,volcanic lithology,volcanic bodies,volcanic lithofacies and diagenesis,among which tectonic processes and diagenesis played the leading role.更多还原