石油钻采工艺2017，Vol.39Issue(6)：667-672,6.DOI:10.13639/j.odpt.2017.06.001
凝析气藏注气开发气窜量化评价方法及应用
An quantitative evaluation method for gas channeling in the process of gas injection development of condensate gas reservoirs and its application
摘要
Abstract
When cyclic gas injection is conducted in a condensate gas reservoir, the injected dry gas tends to break through along high-permeability pathways or natural fractures due to reservoir heterogeneity, and consequently its development effect is impacted. To improve the development effect and increase the hydrocarbon recovery factor, it is of great significance to investigate the gas channeling characteristics of injected gas in condensate gas reservoirs and establish the gas channeling identification and evaluation system for the injected gas in condensate gas reservoirs. At present, the gas channeling discrimination methods for condensate gas wells at home and abroad include field experience method, chart method, tracer method, microseismic monitoring method and so on. Based on the variation characteristics of gas channeling parameters during the production of condensate gas reservoir by the cyclic gas injection, the gas channeling was evaluated using above methods comprehensively, and the quantitative evaluation system for the gas channeling of injected gas in condensate gas reservoirs was established. Then, one actual well in a certain condensate gas reservoir was taken as the example and its gas channeling was evaluated. It is indicated that this well is in good production condition without gas channeling. The evaluation result is consistent with the actual field situation. The quantitative evaluation system for the gas channeling of injected gas in this condensate gas reservoir provides the theoretical basis for development deployment, optimization and gas channeling control of condensate gas reservoirs.关键词
凝析气藏/循环注气/气窜/识别方法/量化评价Key words
condensate gas reservoir/cyclic gas injection/gas channeling/identification method/quantitative evaluation分类
天文与地球科学引用本文复制引用
张永昌,李相方,孙政,李宗宇,刘文远,张逸..凝析气藏注气开发气窜量化评价方法及应用[J].石油钻采工艺,2017,39(6):667-672,6.基金项目
国家重点基础研究发展规划(973)项目"深水油气井完井与测试优化方法-深水油气测试井筒流动形成机制及安全高效测试工作制度研究"(编号:2015CB251205) （973）
国家科技重大专项"煤层气高效增产及排采关键技术-煤层气藏精细描述与产能评价-煤层气井压力传播机理及影响因素研究"(编号:2016ZX05042). （编号:2016ZX05042）
