提高页岩气藏水平井人工裂缝预测准确性研究  

Study on Improving the Accuracy of Predicting Artificial Fractures in Horizontal Wells of Shale Gas Reservoirs

作　　者：邓佳琪 DENG Jiaqi(Research Institute of Exploration&Production,Sinopec Jianghan Oilfield Company,Wuhan,Hubei 430223,China)

机构地区：[1]中石化江汉油田分公司勘探开发研究院,湖北武汉430223

出　　处：《江汉石油职工大学学报》2024年第2期26-29,共4页Journal of Jianghan Petroleum University of Staff and Workers

摘　　要：目前涪陵页岩气田稳产压力大,一次井网采收率12.6%,提高采收率迫在眉睫。研究以产量不稳定分析法(RTA)、微地震资料、压后缝网模拟和数值模拟四种评价水平井人工裂缝的方法为基础,对影响人工裂缝刻画准确性的因素进行分析,通过调整不同参数敏感性,提高预测结果的准确性,为提高采收率精准施策提供支撑,有效指导了焦石坝区块两层、三层开发调整的顺利实施。The Fuling Shale Gas Field is currently under significant pressure to maintain stable production with a primary well pattern recovery rate of 12.6%,making the improvement of the recovery rate a pressing matter.This study is based on four methods of evaluating artificial fractures in horizontal wells:rate transient analysis(RTA),microseismic data,post-frac fracture-network simulation,and numerical simulation.It analyzes factors affecting the accuracy of artificial fracture characterization.By adjusting the sensitivity of different parameters,the accuracy of prediction results is im-proved.This provides support for precise strategies to improve recovery rates and has effectively guided the smooth im-plementation of development adjustments in the two-and three-layers of the Jiaoshiba block.

关 键 词：页岩气 涪陵页岩气田 水力压裂 数值模拟 

分 类 号：TU996.7[建筑科学—供热、供燃气、通风及空调工程]