摘要
为了更好地了解不同气藏特征下页岩气井的生产特征和递减规律,应用数值模拟技术,建立单井数值模拟模型,预测不同地质特征下页岩气井的产量;通过参数敏感性分析,探讨影响其产量递减规律的因素。研究结果表明:基质渗透率对产量递减规律的影响最大;累产气量影响因素按影响的大小依次为基质渗透率、压裂改造效果、吸附气、非SRV区;压裂改造效果对初期产气量的影响最大。
In order to understand the production characteristics and decreasing mechanism of different reservoirs of shale gas, the single well numerical model is established based on numerical simulation method to predict shale gas production in different geological characteristics. Through the sensitivity analysis, the influencing factors of the pro- duction decline trend are explored. The results show that matrix permeability has the greatest impact on the produc- tion decline rule, and the order of the influencing factors on the cumulative gas volume is matrix permeability, frac- turing effect, adsorbed gas and non SRV area. The effect of fracturing is the most important factor for the initial gas oroduction.
作者
郭伟
GUO Wei(CNPC Institute of Geology, Greatwall Driling Company, Panjin Liaoning 124010, China)
出处
《重庆科技学院学报（自然科学版）》
CAS
2018年第3期36-39,共4页
Journal of Chongqing University of Science and Technology：Natural Sciences Edition
基金
国家科技重大专项"大型油气田及煤层气开发"之子课题"四川盆地及周缘页岩气形成富集条件
选区评价技术与应用"(2017ZX05035004)
关键词
页岩气
递减趋势
影响因素
数值模拟
shale gas
declining trend of production
influencing factor
numerical simulation
