Pointed north Qaidam Basin basement rock gas reservoir is poor reservoir physical property, strong heterogeneity, complex reservoir model, gas well early to see water exist in the process of gas reservoir development and produce the problem such as water source. In this paper, on the basis of geological research, combined with the feature of pointed north gas field production, output by qualitative and quantitative analysis of the pointed north gas field water sources. Further analysis of gas well dynamic characteristics, grasp the law of water production. By studying the water source of gas well in gas reservoir, it provides a certain theoretical basis for water control of each single well.
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