关键词: 储气库, 水合物,  , 压力损失,  , 冲蚀,  , 携液

Abstract: The reservoir condition moderate level of gas well was taken as an example to research the proper Tubing diameter in Daqing Oilfield gas storage. Predicted the generation of gas storage, and optimized the formulation and amount of inhibitor.The node analysis method was used to research gas production capacity, pressure loss, liquid carrying capacity and the erosion resistance on the diameter of tubing effect. The results showed that the ability to natural gas injection and production increase with the increasing tubing diameter and wellhead pressure. The gas storage injectionproduction volume requirements could be met, when the tubing diameter was more than 50.8 mm. The well bore pressure loss increase with the injectionproduction volume increases, but decrease with the increasing tubing diameter. The tubing pressure loss was less, when the tubing diameter was more than 63.5 mm. Comprehensive analysis the 63.5 mm tubing was more reasonable used in gas storage. Meanwhile, erosion and effusion could be avoided. When Production volume was very low, the tubing would generate natural gas hydrate.The adding method was recommended to prevent hydrate formation, the inhibitor was used methanol and ethylene glycol to the volume ratio of 2∶3, and the amount was 0.03 m3/d.

Key words: Gas storage,    , Gas hydrate,    , Pressure loss,   ,  Erosion,   ,  Carrying liquid