电磁加热凝析气井井筒温度分布

井下电磁加热使凝析油蒸发或流动。在反凝析区域,若升高温度可以得到蒸发凝析油的效果,甚至成为单相。所以通过加热方法升高近井区温度,使凝析油蒸发。凝析气井井筒温度分布是进行气井节点分析和动态分析必不可少的参数。根据传热学原理推出了凝析气井井筒温度分布计算公式,研究了温度计算基础数据求取方法。对某一井深为3390m的凝析气井进行了计算,该气井气油比为3000;地层温度为114℃。计算结果表明:气井温度随井深呈非线性分布;气井井口温度随储层温度的增加而增加。

Wellbore Temperature Distribution in Condensate Gas Well by Electromagnetic Heating

Electromagnetic heating in the bottom of a well can make the condensate evaporate or flow In the retrograde condensation zone, if the temperature is increased, the condensate will be evaporated, even to a single phase flow ing. So increase the temperature of the near well bore zone by heating, then the condensate cran he evaporated. The well bore temperature distribution in condensate gas well is dispensable for the node analysis and performance analysis for gas well. Based on the heating transfer principle, the formula for calculating well bore temperature distribution in eonden sate gas well is presented, the method acquiring the basic da ta for the temperature calculation is discussed and the effect law of gas out put, water output in well elepth and tubing di ameter on well head temperature is analyzed. 'The tempera ture in a certain condensate gas well with a depth of 3390m has been calculated. The gas oil ratio of this well is 3000. The formation temperature is 114? 'I he result of the calculation shows that the temperature of gas well presents nonlinear distribution with the depth of well 'The temperature of wellhead of gas well increases with the increasing temperature of the reservoir