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Predicting on Distribution of Temperature, Pressure, Velocity, and Density of Gas Liquid Two-phase Transient Flow in High Temperature-High Pressure Wells

The authors present a predicting model concerning pressure, temperature, density, and velocity of gas liquid two-phase transient flow in high-temperature–high-pressure wells, according to mass, momentum, and energy balances. The finite difference method is used to solve the model. A high-temperature–high-pressure gas well (6,115 m deep) in Sichuan Province of China is used to check the efficiency of the proposed model and the algorithms.