As a result of flooding and accumulations of liquid at the bottomholes, the operating conditions of gas wells become complicated, so that they end up self-squeezing and losing of gas production. A method is proposed for determining the technological parameters of operation of the gas wells with the purpose of removing liquid from the bottom of the wells. Data from the gas dynamics and special studies were used to develop this method, which has been tested on one of the oil and gas condensate fields. It offers the possibility to increase the accuracy of the information provided by the fund and to ensure that the production wells are operated as efficiently as possible with the use of this method. In the case of liquid accumulation in the well that is insignificant, or when water is present in the well, the technique is beneficial in that it allows determining the technological parameters of well operation and ensuring the removal of the liquid from the bottom of the well.
In this study, we described the behavior of the serpentine flow field inside the fuel of a proton exchange membrane fuel cell (PEMFC). Pressure drop, inlet velocity, oxygen and gas diffusion layer (GDL), and current density determine the design of the fuel cell. The other parameters predicted in the open literature, such as temperature, humidity, etc., are not taken into account here. COMSOL Multiphysics 5.4 Software was used to simulate and test the electrochemical reactions governing equations. Three inlet velocities and three of (1.5, 2.5, and 3.5 m/sec) cubic channels are used to show the effect of a turbulent flow without wall slip. By analyzing the results, it can be concluded that the serpentine flow field enhances the performance of fuel cells with cubic channel geometry. We found a good correlation between the current density and cell voltage at different inlet velocities.
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