Visual temperature and pressure resistance device, gas-liquid interface mass transfer dissolution measurement device and method

Abstract

The invention provides a visual temperature-resistant and pressure-resistant device, and a gas-liquid interface mass transfer dissolution measuring device and method. The visual temperature-resistantand pressure-resistant device comprises a transparent measurement observing chamber; the upper end of the transparent measurement observing chamber is connected with a first sealing element; the lowerend of the transparent measurement observing chamber is connected with a second sealing element; a gas injecting hole is formed in the first sealing element; a liquid suction hole is formed in the second sealing element; a piston is arranged inside the transparent measurement observing chamber; the inside of the transparent measurement observing chamber is divided into two parts including a gas chamber and a liquid chamber by the piston; the gas chamber is communicated with the gas injecting hole; the liquid chamber is communicated with the liquid suction hole; the gas injecting hole is provided with a first antileakage switch; the liquid suction hole is provided with a second antileakage switch; a displacement sensor is also arranged inside the transparent measurement observing chamber;the displacement sensor is connected with a main station computer through signals; the transparent measurement observing chamber is made of transparent and temperature-resistant and pressure-resistantmaterials. The invention also provides a gas-liquid interface mass transfer dissolution measuring device, which comprises the visual temperature-resistant and pressure-resistant device.

Description

technical field [0001] The invention belongs to the technical field of gas drive oil recovery, and relates to a visible temperature and pressure resistant device, a gas-liquid interface mass transfer and dissolution measurement device and a method. Background technique [0002] At present, for reservoirs developed by natural gas top-driven energy or artificial gas injection flooding, when the breakthrough of the gas flooding front occurs, the oil-gas two-phase seepage law in the gas flooded reservoir will become very complicated, and this will also give gas Efficient development of flooded reservoirs presents a number of challenges. In order to improve the overall development effect of the reservoir in the gas drive production stage, it is necessary to predict and evaluate the production performance and development effect of the reservoir. However, for gas drive reservoirs, the production performance prediction generally adopts reservoir numerical simulation method. Calcula...

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Problems solved by technology

But the CO of this method 2 The concentration distribution is obtained by pure calculation. The calculation of parameters such as equation of state, compression factor, and expansion coefficient in the mathematical model may have a large error with the real state of the reservoir, thus affecting the CO2 in crude oil. 2 Concentration Final Results

[0004] It can be seen that the various methods currently used for the dynamic analysis of gas drive reservoirs still have many limitations, and there is no evaluation method and evaluation system that can accurately measure the mass transfer and dissolution of the oil-gas interface in real time.

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