We assume that the reservoir is homogeneous with uniform thickness and total compressibility of rock and fluid is low and constant. Some of their research results can be used to solute the problem of inflow performance relationship of water producing gas well. studied the transient flow and two-phase flow behaviors in porous media. And they compared the performance of both single- and multiobjective versions of particle swarm optimization. described a comparison of single- and multiobjective history matching of a medium-sized field in Western Siberia with nearly 100 wells and over 10 years of history. Attention was focused on the possibility offered by these methodologies of obtaining a number of calibrated reservoir models. discussed benefits, limitations, and drawbacks of assisted history matching, based on multiobjective optimization and heuristic strategies. presented a multiobjective evolutionary algorithm applied to history matching of water flooding projects, that is, to search a feasible set of geological properties showing the reliable future performance. Cardoso found that reduced-order model is well suited for reservoir simulation. The synthetic optimization method could find a globally compromised solution and offer a new alternative with significant improvement over the existing conventional techniques. proposed a fuzzy nonlinear programming approach to design production systems of gas fields. analyzed gas and water phase relative permeability through cores with three different permeability leaves by the establishment of physical simulation experiment system and experimental process of water-gas mutual flooding. proposed three new formation evaluation parameters for low permeability gas reservoir, on the basis of the rate controlled mercury injection, nuclear magnetic resonance, and physical simulation technologies. Xiaoping and Birong put forward a method to deduce the binomial productivity equation which could calculate the inflow performance relationship (IPR) curve of water producing gas well and presented the application of the IPR curve in determining gas and water production rate from water producing gas well. Well productivity is one of primary concerns in field development and provides the basis for field development strategy. This method remedied the limitation of well testing on site and was considered to be a new way to analyze the production behaviors in water producing gas well. In addition, the influence of different production gas water ratios (GWR) and gas-soluble water coefficients on absolute open flow rate ( ) is discussed. Multiobjective optimization method is used to automatically match the sample well production data in water drive gas reservoirs and then we can achieve the sample well’s productivity equation, relative permeability curve, water influx intensity, and single well controlled reserves. Based on the basic theory of fluid mechanics in porous medium, using the principle of mass conservation, and considering the process of dissolution and volatilization of gas and water formation, this paper establishes a new mathematical model of gas-water two-phase flow. Therefore, the traditional gas-water two-phase inflow performance relationship (IPR) models are not suitable for calculating the water producing gas well inflow performance relationship in water drive gas reservoirs. During the development of water drive gas reservoirs, the phenomena of gas escaping from water and water separating out from gas will change the seepage characteristics of formation fluid.