摘要
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，分析了产气量、产水量、井深及油管直径对井口温度的影响规律。对某一井深为５４００ｍ的凝析气井进行了计算，该气井气油比为３０００，含２３％的Ｈ２Ｓ和４％的Ｎ２；地层温度为１３４℃。计算结果表明：井口实测温度与计算温度的相对误差为０２％～３８％，符合工程精度。气井温度随井深不呈线性分布；气井井口温度随产量、井深增加而增加，随油管直径减少而减少；该公式同时适用于干气井、湿气井和凝析气井的温度分布计算，计算精度符合工程精度要求。
The well bore temperature distribution in condensate gas well is indispensable for the node analysis and performance analysis for gas well.Based on the heat transfer principle,the formula for calculating well bore temperature distribution in condensate gas well is presented,the method acquiring the basic data for the temperature calculation is discussed and the effect law of gas output,water output,well depth and tubing diameter on wellhead temperature is analyzed.The temperature in a certain condensate gas well with a depth of 5 400 m has been calculated.The gas oil ratio of this well is 3 000.The gas contains 2 3% H 2S and 4% N 2.The formation temperature is 134 ℃.Through calculation,it is shown that the relative error between the temperature measured at well head and that calculated is 0 2%～3 8%,being up to the engineering accuracy.The well temperature presents a nonlinear distribution with the depth and the well head temperature increases with the increase of the output and depth but decreases with the decrease of the tubing's diameter.This formula also applies to the calculation of temperature distribution in dry gas well,wet gas well and condensate gas well and the calculation precision accords with the demands of engineering accuracy.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1998年第1期60-62,共3页
Natural Gas Industry
关键词
凝析气井
井筒
温度分布
计算
Gas well,Condensate gas well,Temperature,Vertical tube flow well,Calculation method.
