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针对目前致密含水气藏产液评价方法单一、实用性差的问题，在气井产气、产液特征研究基础上，对产液进行静态、动态评价分类，并以此为基础，建立了致密含水气藏产液评价模型。针对模型中不同类型气井，制订了相应的排水采气思路和建议。将研究成果应用于大牛地气田 D28 井区，实施一个月后，目标区块日产气量由 82.5×104m3/d 提高至 86.6×104m3/d，日产液量由 412m3/d 提高至 447m3/d，气井生产时率由 84.1%提高至 87.3%。与现有评价方法相比，新模型可以同时描述气井产液静态特征和产液动态变化趋势，为致密含水气藏气井的精细分类和准确处理提供理论依据，具有现场应用价值。
Aiming at the problems of single and poor practicability of current production evaluation methods of tight gas-bearing gas reservoirs, based on the study of gas production and fluid production characteristics, the static and dynamic evaluation of liquid production was carried out. On the basis of this, Production liquid evaluation model. In view of the different types of gas wells in the model, the corresponding ideas and suggestions for drainage and gas production have been formulated. The research results were applied to D28 well in Daniudi Gas Field. After one month’s implementation, the daily gas production of the target block increased from 82.5 × 104m3 / d to 86.6 × 104m3 / d and the daily output of liquid increased from 412m3 / d to 447m3 / d. Gas well production rate increased from 84.1% to 87.3%. Compared with the existing evaluation methods, the new model can simultaneously describe the static characteristics of liquid production and the trends of liquid production dynamics, and provide a theoretical basis for the fine classification and accurate treatment of gas wells in dense gas reservoirs, which has the field application value.