Non-ideal Gas Throttling Process Thermodynamic Analysis And Applied Research

In the gas Wells in the underground throttling mouth, previous studies done a lot of work, establishes the gas flowing through all sorts of theoretical model throttling mouth. This paper stood with previous different angles, in an ideal gas throttling phenomenon theory analysis based on no underground throttling, through the gas liquid two phase flow parameters calculation, get a downhole throttling gas-liquid two phase flow of initial conditions. After installation of underground for throttle device it's very hard the throttle mouth upstream pressure, according to the basic principle of aerodynamics Mach number is adopted in this paper, the original definition, discriminant throttling are in critical flow after gas downstream, according to the parameters, throttle mouth by node systems analysis method to the wellbore mouth from downstream to upstream, throttle to the well's mouth, throat and mouth bottom of throttle pressure, temperature distribution in numerical description.This paper in gas-liquid two phase flow restrictor aspects of the theory study bottom for application of the technology provides the theoretical guidance. Specifically, this paper mainly studies the following several aspects:1. From thermodynamics Angle caused for throttling process temperature drop reason is studied, analyzes the process of the throttle temperature reduction of generating mechanism;2. Decided to high liquid gas ratio of gas production process parameters, throttle control process design for hydrates provides basis;3. The wellbore gas-liquid two phase throttling analysis, using node system analysis method, build wellbore to pressure and temperature prediction model, after various parameters wellbore throttling dynamic analysis, the temperature distribution of pressure predicted;4. Using Fluent in underground throttling flow analysis software in the mouth with gas-liquid two phase flow of 2-d numerical simulation condition, and analyze the related parameters in the process of throttling change rule and gas forecast moisture data mining...