摘要
泡沫流体冲砂洗井有效降低了油井中冲砂液的损失,而泡沫发生器的结构对产生致密细致的泡沫起重要的作用.在螺旋式泡沫发生器的结构上结合挡板式发泡器的优点,充分利用油井下压力和风流流速,设计了一种新型螺旋挡板式泡沫发生器.应用数值模拟,分析不同气液比对发泡器内部两相流场的影响,发现螺旋挡板式泡沫发生器在30%-40%含气量时可以产生更致密均匀的泡沫;相比传统螺旋式发泡器提高了发泡率,结构简单,操作方便,不易发生堵塞.
Foam fluid washing sand effectively reduces the loss of flushing fluids in the well, and the structure of the foam generator plays an important role in producing fine foam. The new spiral-baffle generator is designed with the structure of the aprial and baffle foam fenerator.It can take advantage of the pressure and airflow of oil well. The influence of different gas-liquid ratio on the two-phase flow field was analyzed by numerical simulation. It was found that the spiral-baffle foam generator could produce more dense foam at gas content of 30%-40%. Compared with the traditional spiral type foam to improve the foam rate, its structure is easy to operate and less prone to blockage.
作者
刘承婷
张维薇
刘钢
闫作秀
LIU Cheng-ting;ZHANG Wei-wei;LIU Gang;YAN Zuo-xiu(School of Petroleum Engineering, Northeast Petroleum University, Daqing 163318, China)
出处
《数学的实践与认识》
北大核心
2018年第8期120-127,共8页
Mathematics in Practice and Theory
关键词
泡沫发生器
气液两相流
数值模拟
结构设计
优化分析
foam generator
gas-liquid two-phase flow
numerical simulation
structural design
optimization analysis
