天然气勘探与开发2026，Vol.49Issue(1)：40-50,11.DOI:10.12055/gaskk.issn.1673-3177.2026.01.004
有水气藏水侵特征分析方法现状及未来发展方向
Water influx characterization methods in water-bearing gas reservoirs:advances and prospects
摘要
Abstract
During the development process,water-bearing gas reservoirs may suffer water influx,leading to reduced gas well productivity or even well shutdown,significantly lowering the reservoir's recovery rate.To provide reference for subsequent studies and engineering applications,this paper systematically investigates the research advances of existing water influx characterization methods.According to literature review and technology comparison,this paper critically evaluates the applicability and limitations of hydrochemical analysis,production performance diagnosis,pressure response interpretation,development logging and testing techniques,and data-driven methods in identifying water influx types,assessing aquifer activity,and tracing water influx pathways.The findings indicate that:(i)hydrochemical analysis effectively distinguishes different water sources but suffers from response lag;(ii)the production dynamic analysis method is simple and intuitive,but it is difficult to quantitatively characterize the intensity of water invasion;(iii)pressure response interpretation enables dynamic monitoring and quantitative assessment of water influx impacts,though some models fail to adequately account for mechanisms such as water-blocking gas;(iv)development logging and testing techniques offer high resolution and strong specificity but entail high operational costs;and(v)data-driven method demonstrates strong potential in forecasting water production trends,although their performance is highly dependent on data quality and computational resources.It is concluded that due to the inherent limitations of individual methods,an integrated multi-method approach is essential in practice to enhance the accuracy and reliability of water influx identification and evaluation.Future efforts should focus on developing an early-warning system for water influx that synergistically combines physical constraints with data-driven techniques,thereby shifting from reactive,lagging responses to proactive,early-stage prevention and control.关键词
有水气藏/水侵特征/水化学/生产动态/压力响应/开发测井与测试技术/数据驱动Key words
Water-bearing gas reservoir/Water influx characterization/Hydrochemical analysis/Production dynamic diagnosis/Pressure response interpretation/Development logging and testing technique/Data-driven method分类
能源科技引用本文复制引用
李晓平,彭港珍,谭晓华,权芳,邓永建,周潇君,韩晓冰,卿太雄..有水气藏水侵特征分析方法现状及未来发展方向[J].天然气勘探与开发,2026,49(1):40-50,11.基金项目
国家自然科学基金项目"四川盆地有水气藏CO2驱提高采收率及其有效封存研究"(编号:U23A2022)、国家科技重大专项项目"四川盆地深层超深层碳酸盐岩气藏勘探开发技术与集成示范"(编号:2025ZD1402500). （编号:U23A2022）
