Visual gas-liquid two-phase flow coupling experiment device

Abstract

The invention relates to the technical field of a two-phase flow experiment system, in particular to a visual gas-liquid two-phase flow coupling experiment device. The device mainly consists of a gascylinder, a gas inlet tube, a pressure regulation valve, a pressure gage, a gas quality flowmeter, a check valve, a gas inlet, a one-way water-proof layer, a channel, a gas outlet, a gas outlet tube,a flowmeter and an outlet, wherein the pressure gage is arranged on the gas inlet tube between the pressure regulation valve and the gas quality flowmeter; the one-way water-proof layer is positionedon the bottom of the channel and consists of a metal screen plate, a waterproof air-permeable filter membrane and a metal supporting screen plate; and the channel consists of a rock plate, an organicglass plate, an upper pressing plate and a lower pressing plate. By use of the visual gas-liquid two-phase flow coupling experiment device disclosed by the invention, a gas-liquid two-phase flow simulation experiment under tube walls of different sizes and different roughness levels under a gravity condition can be realized, a one-way water-proof device is designed, and gas can be evenly injectedfrom the bottom of the channel.

Description

technical field [0001] The invention relates to the technical field of two-phase flow experimental systems, in particular to a visual gas-liquid two-phase flow coupling experimental device. Background technique [0002] In the process of gas field development, when the gas reservoirs are first exploited, due to the large amount of gas reservoirs at the bottom of the well, the water production is small and the pressure is high. As the pressure of the gas-producing formation at the bottom of the well continues to drop, some gas fields use the method of water injection to extract the gas in the gas wells. . During the production of gas wells, with the continuous injection of water, water will be produced in the wellbore of the produced fluid. When the gas well produces water, it will have a great impact on the normal production of the gas reservoir, thereby reducing the productivity of the gas well. This will seriously affect the implementation of the entire gas field developm...

AI Technical Summary

Problems solved by technology

During the production of gas wells, with the continuous injection of water, water will be produced in the wellbore of the produced fluid. When the gas well produces water, it will have a great impact on the normal production of the gas reservoir, thereby reducing the production capacity of the gas well.

This will seriously affect the implementation of the entire gas field development plan

After investigation and research, most of the existing simulation experiment platforms for gas-liquid two-phase flow study the gas-liquid two-phase flow in a horizontal smooth tube, and cannot study the law of gravity and rough tube wall on gas-liquid two-phase flow. Moreover, in the existing In a small amount of research on gas-liquid two-phase flow experiments in the vertical direction, the gas injection is generally through a slender pipeline, which cannot restore the gas-liquid two-phase flow under actual working conditions. Therefore, it is necessary to design a = visualization gas Liquid two-phase flow coupling experimental device, to carry out similar simulation experiments of gas-liquid two-phase flow in the laboratory

Images