节点文献
气井积液可视化实验
VISUAL EXPERIMENTAL RESEARCH ON GAS WELL LIQUID LOADING
【摘要】 气藏在开发过程中都会产地层水或凝析液。产出液若不能及时排出,就会聚积在井底,增大井底回压、降低产气量,严重时造成气井水淹停产。为此,文章在实验研究建立总高为16m、Φ40有机玻璃管可视化实验架的基础上,通过实验手段采用压缩空气和水作为实验介质(气液比>10000),模拟气井连续排液和积液这一物理现象,并测试井口压力、井口温度、注入气量及实验液量等参数,采用现代化技术手段捕捉高速气流中液滴实际形状。通过实验后对测试数据处理发现,实验结果同Turner液滴模型公式计算结果基本相符。该实验研究成果对于科研教学以及指导现场应用均有重要意义。
【Abstract】 During the developing of gas well, almost gas reservoir will product formation water or condensed liquid. If the cumulative water in the bottom-hole is not discharged timely, it may cause water out of gas wells and decrease gas production rate. Based on the established visual experimental facilities of lucite tube with total high of 16m, 40, taking compressed air and water as the experiment objects imitated the physical phenomenon of continuous flowing back and liquid loading in gas well, and tested wellhead pressure, wellhead temperature and experimental gas volume, and parameters of injected gas volume and fluidounce etc., then adopted modern technique to catch the true form of liquid drop in high speed air current. Through data processing after test, the results showed that the result in experiment fit in with the calculation result of Turner liquid drop model. At the same time, the coefficient of correction of the formula was given out in the paper. The experimental fruits have the positive meaning for scientific research, teaching and guiding field application.
【Key words】 gas well liquid loading; liquid drop model; experimental study; physical simulation; critical flow rate; critical output;
- 【文献出处】 钻采工艺 ,Drilling & Production Technology , 编辑部邮箱 ,2007年03期
- 【分类号】TE311
- 【被引频次】48
- 【下载频次】581