多信息综合火山岩储层裂缝表征:以徐深气田徐东地区营城组一段火山岩储层为例

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...

Multiple sets of information synthesized to describe fractures of volcanic reservoir: Taking volcanic reservoir of the Member 1 of Yingcheng Formation in Xudong Area of Xushen Gas Field as an example

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.