超音速喷管雾化实验研究与雾化模型回归预测分析  

Experimental study on supersonic nozzle atomization and regression prediction analysis of atomization model

作　　者：刘承婷[1,2] 贺亮 胡传峰 王智刚 董佩鑫 Liu Chengting;He Liang;Hu Chuanfeng;Wang Zhigang;Dong Peixin(School of Petroleum Engineering,Northeast Petroleum University,Daqing 163318,China;Key Laboratory of Enhanced Oil Recovery(Northeast Petroleum University),Ministry of Education,Daqing 163318,China)

机构地区：[1]东北石油大学石油工程学院,黑龙江大庆163318 [2]提高油气采收率教育部重点实验室(东北石油大学),黑龙江大庆163318

出　　处：《南京理工大学学报》2023年第5期715-723,共9页Journal of Nanjing University of Science and Technology

基　　金：中国石油科技创新基金(2019D-5007-0206)。

摘　　要：为解决低压低产气井积液问题以及提高排水采气井筒携液效率,建立新型超音速喷管模型,自行搭建的实验平台探究气相流量、液相流量、液相入口直径对雾化效果的影响,对25组实验结果进行相关性分析,结果表明气相流量在3000~5000 m^(3)/d范围内,随着气相流量增加,雾化效果增强。液相流量在0.6~2.2 m^(3)/d,液相喷孔直径在6.0~8.4 mm范围内,随着流量与直径增加,雾化效果减弱。并得出对雾化角和雾滴粒径影响因素的强弱为气相流量>液相流量>液相入口直径。根据实验数据和相关性分析建立多元非线性回归雾化模型,雾化模型决定系数R^(2)为0.971,通过雾化液滴模型预测得到雾滴预测值与实验值进行误差分析,平均误差为14.02%,雾化模型良好。In order to solve the problem of liquid accumulation in low-pressure and low-production gas wells and improve the liquid carrying efficiency of drainage gas production wellbore,a new supersonic nozzle model was established,and the self-built experimental platform explored the effects of gas phase flow,liquid phase flow and liquid phase inlet diameter on the atomization effect,and the correlation analysis of the experimental results of 25 sets showed that the gas phase flow rate was in the range of 3000-5000 m^(3)/d,and the atomization effect increased with the increase of gas phase flow.The liquid phase flow rate is 0.6-2.2 m^(3)/d,and the liquid phase nozzle diameter is in the range of 6.0-8.4 mm,and the atomization effect is weakened with the increase of flow and diameter.It is concluded that the strength of the factors influencing the atomization angle and droplet size is gas phase flow>liquid phase flow>liquid phase inlet diameter.According to the experimental data and correlation analysis,a multiple nonlinear regression atomization model was established,the coefficient of determination of the atomization model R^(2)was 0.971,and the error analysis between the predicted value of the droplet and the experimental value was obtained by the atomization droplet model,and the average error was 14.02%,and the atomization model was good.

关 键 词：排水采气 超音速喷管 雾化效果 相关性分析 多元非线性回归 

分 类 号：TE122.14[石油与天然气工程—油气勘探]