���½��������ڳ��������Ӧ��

长庆气田采用高压集气集中注意中注醇工艺流程，部分气井及集气管线在生产运行过程中暴露出堵塞严重等问题，为此开展井下节流技术的研究和应用具有重要的实际意义。章结合井下节流工艺技术在长庆气田应用的大量现场试验资料，简述了该工艺的基本原理，定量分析了该项工艺技术应用对提高气流携液能力，改善水合物形成条件及减少管线堵塞次数等方面取得的经验和认识。

Application of Downhole Choking Technique in Changqing Gas Field

The technological process of the high-pressure gas gathering and concentrated alcohol injection is adopted in Changqing Gas Field but some problems as serious plugging-up,etc.,have been found in the processes of production/operation of partial gas wells/gas gathering piperline,so that it is very important to carry out the research and application of downhole choking technique.In combination with a great number of on-site testing data on the application of downhole choking technique in Changqing Gas Field,the basic principle of such a technique is simply stated and the experiences and knowledges of using the technique for raising the liquid-carried capacity of gas flow,for improving the hydrate-formed conditions and for reducing the number of times of pipeline's being plugged are quantitatively analyzed in the paper.