热采井环空产出液温压分布规律

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中图分类号：TQ022.4；TE345 文献标志码：A 文章编号：1671-0460（2026）01-0140-07

Abstract：Athermo-fluid coupled multiphysics model of the wellbore wasestablished to investigatethe Variation paterns of temperature and presure fields of produced fluids in the annular space of thermal production wells throughout theentire production stage.The model considered the efects of watercut and temperatureon the rheological behaviorof the produced fluid and was solved using the finite element method.The results indicated that increasig the production rate during the earlyand middle productionstagescould reduce heat los，whereas decreasing the production rate in the late production stage facilitated temperature recovery at the wellead.The pressure from the botomhole to the wellhead decreased slowly at first and then rapidly，transitioning from gravity-dominated pressure drop to friction-dominated pressure drop.When thewatercut of the produced fluid increased from 70% to 80% ， its viscosity decreased by approximately 30% 1

KeyWords：Thermal productionwell;Temperatureand pressuredistribution;Heattransfer;Petroleum;Multiphase flow;Numerical simulation

全球稠油储量约为8150亿t，其中 80% 位于委内瑞拉和加拿大境内。（剩余11665字）