裂缝性高温、高压有水气藏具有单井产水量大、气液比低等特点。准确预测井筒压力是判断气井井筒积液、优化气井生产制度和制定排采工艺方案的重要依据,利用川西须家河组气藏38井次实测流压数据,与目前常用的9种气液两相管流压降模型预测的井底压力值进行对比研究。分析结果表明:产水量、气液比是影响井筒压降模型计算结果相对误差的主要因素;Ansari和GA模型适用于气液比低于400、产水量100～300 m3之间的气井;BBO和DR模型适用于气液比低于240、产水量100～300 m3 之间的气井;Gray和HB模型适用于气液比低于1 500、产水量低于110 m3的气井。根据优选的井筒压降模型预测的井筒压力数据制定的工艺措施方案符合气井实际情况，均取得了较好效果。研究结果对提高井筒压力计算准确性具有重要意义,可为气井优化配产及制定排采方案提供依据。

The Xujiahe formation in western Sichuan has fractured high temperature and high pressure gas reservoirs with high single well water production and low gas-liquid ratio. In order to accurately predict wellbore pressure, provide important basis for judging wellbore liquid accumulation, optimizing production system of gas well and making out drainage technology scheme, Using 38 wells of measured flow pressure data from Xujiahe formation gas reservoir in western Sichuan province, the bottomhole pressure predicted by 9 gas-liquid two-phase tubular flow pressure drop models commonly used were compared and analyzed. The results show that water yield and gas-liquid ratio are the main factors that influence the relative error of wellbore pressure drop model; Ansari and GA models are suitable for gas wells with gas-liquid ratio less than 400 m3/m3 and water production between 100 and 300 m3; while BBO and DR models are suitable for gas wells with gas-liquid ratio less than 240 m3/m3 and water production between 100 and 300 m3; Gray and HB models are suitable for gas wells with gas-liquid ratio less than 1 500 m3/m3 and water production less than 110 m3. According to the wellbore pressure data predicted by the optimized wellbore pressure drop model, the technical measures are in line with the actual gas well and the measures have achieved good results. The results of the study are important for improving the accuracy of wellbore pressure calculation, and can provide a basis for optimizing the production allocation of gas wells and formulating drainage and recovery plan.