气流量对水合物堵塞影响的试验研究

The Influence of Gas Flow on Hydrate Blocking

天然气在生产过程中容易生成水合物使气井停产,确定流动情况下水合物生成条件是防止水合物生成堵塞管线技术的主要参数。采用自研的动态水合物试验装置对天然气水合物在流动条件下进行了动态试验,并与静态试验数据进行对比分析。结果表明,水合物动态堵塞温度点比静态生成温度点低,气流量越高,水合物生成堵塞温度点越低,越不易堵塞。

Hydrate was easily produced and gas well shut-in was caused in gas production,determination of hydrate generating condition was the main parameter preventing pipeline blocked by hydrate.A dynamic experiment for the gas hydrate under flowing condition was carried out by using self-made hydrate testing apparatus and the result was compared with that of static test.The result shows that the dynamic blocking temperature point is lower than that of static one,the higher the airshed is,the lower the blocking temperature point is,and the wellbore plugging would not be caused easily.