摘要
在气井的各类腐蚀中,冲蚀的危害性极大。分析了冲蚀产生的原因及影响因素,提出随着流速增加,冲蚀加剧,如果气流速度增加3.7倍,则腐蚀速度增加5倍。提出计算冲蚀流速的公式及考虑其它影响因素时的校正方法,利用该方法所绘制的图版在仅知道气井井口流动压力与油管内径的情况下便可判断气井有无明显的冲蚀情况,便于现场应用。
Washout is the largest damage to gas wells among various erosions. The causes and affection factors for washout are analysed. The washout increases along with the increment of gas flow velocity. If the gas flow velocity increases 3.7 times,the erosion velocity does 5 times, the formula of calculating washout velocity and the corrective method of considering,other influence factors are presented. Washout situations of gas wells can be determined by the chart method in the conditions of known flow pressure at wellhead and known tubing inner diameter,which is very easy for on-the-spot application.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1996年第3期58-60,共3页
Natural Gas Industry
关键词
气井
气体流动
冲蚀作用
腐蚀
计算
图版
开采
Gas well, Gas flow, Washout, Calculation, Chart, Application.
