摘要
应用考虑气液相间滑脱与流体沿井筒截面非均匀分布的漂移模型,结合动量守恒、能量守恒和井筒传热学,建立考虑井斜变化的气井井筒温度、压力耦合预测模型,通过15口实测井数据对模型进行验证.结果表明:所建模型可以准确计算产水气井井筒的温度和压力,计算结果平均绝对误差3.60%,满足工程计算要求.
Based on drift model which copes with gas-liquid phase slippage and non-uniform distribution along section of wellbore,a coupled temperature-pressure prediction model was established for varied angle gas wellbores considering momentum conservation,conservation of energy and wellbore heat transmission. The model was validated with 15 tested gas wells. The calculation showed satisfying results with average absolute error of 3. 6% which meets engineering requirements.
出处
《计算物理》
CSCD
北大核心
2014年第5期573-580,共8页
Chinese Journal of Computational Physics
基金
国家科技重大专项(2011ZX05015)资助项目
关键词
多相流
漂移模型
温度
压力
致密砂岩气井
multi-phase flow
drift model
temperature
pressure
tight sandstone gas wells
