Abstract: There are many difficulties in the development of abnormally high-pressure gas wells, especially how to allocate a reasonable working system in the trial production stage, which is related to the production efficiency of gas wells. For this reason, by taking L16 well as an example, according to the geological characteristics, the dynamic characteristics of its production test are analyzed and evaluated: firstly, the open flow rate of gas well is calculated by the unstable productivity prediction method based on the daily production data; secondly, the productivity equation of gas well is obtained by the stable well test without shutting in, and the open flow rate of gas well is calculated. The result is very close to that of one-point completion method. Considering the production characteristics of gas wells, open flow rate and critical liquid-carrying flow rate, the early production allocation system of gas wells is reasonable about 4.0×104 m3/d, which also ensures the stable production of gas wells.