摘要
渤海地区油田早期研究阶段井口温度预测结果与实测结果相对误差在15％～25％。利用PIPESIM软件，针对地层段、海水段和空气段分别建立模型，分析了海水段和空气段高度、总传热系数，以及海水、空气温度对井筒温降的影响；在此基础上，基于热力学、传热学理论，推导出了考虑海水和空气影响的井筒温降表达式，讨论了丛式井对井筒温度的影响。实例计算分析表明，本文方法计算结果与实测结果的相对误差值平均为7．7％。
During early researches on oilfields in Bohai area, the forecast temperature has large error compared to actual wellhead temperature with near fifteen to twenty five percent. PipeSim software is used to build models respectively for formation, seawater and air sections, analyze theeffects of the height of seawater and air sections, total heat transfer coefficient and temperatures of seawater and air on the temperature drop of well hole, based on which and combined with the thermodynamics and heat transfer theory, the temperature drop expression of well hole considering the effect of seawater and air is derived, at the same time, the influence of cluster wells on temperature of well hole is discussed. The case calculation shows the result of above method has seven point seven percent errors compared to actual result.
出处
《中国海上油气》
CAS
北大核心
2009年第5期332-334,337,共4页
China Offshore Oil and Gas
关键词
井口温度
海水段
空气段
总传热系数
丛式井
wellhead temperature
seawater section
air section
total heat transfer coefficient
cluster wells.
