Gas-liquid separator for oil field

Abstract

The invention discloses a gas-liquid separator for an oil field, and belongs to the technical field of gas-liquid separation of the oil field ground technology. The gas-liquid separator for the oil field is designed for solving the problem that after gas channeling occurs in a carbon dioxide flooding oil field, desorption of a large amount of carbon dioxide gas dissolved in produced liquid is difficult. The gas-liquid separator of the oil field comprises a shell, an ultrasonic system is arranged in the shell, and the ultrasonic system can generate ultrasonic waves so as to improve the desorption rate of carbon dioxide gas in the produced liquid. According to the gas-liquid separator of the oil field, the desorption rate of carbon dioxide gas in the produced liquid is improved through the cavatition effect and the mechanical effect of the ultrasonic waves, desorption of carbon dioxide gas in the produced liquid of the carbon dioxide flooding oil field is accelerated, carbon dioxide gas entering the produced liquid of the separator can be effectively desorbed within a standard set period, and the problem that desorption of carbon dioxide gas in the produced liquid of the carbon dioxide flooding oil field is difficult is solved.

Description

technical field [0001] The invention relates to the technical field of gas-liquid separation in oilfield surface technology, in particular to a gas-liquid separator for oilfields. Background technique [0002] Given CO 2 Oil flooding technology has many advantages, and this oil recovery technology has been widely promoted. When CO 2 When gas channeling occurs in the middle and late stages of oil displacement, it will often cause CO 2 The gas content increases sharply. If a large amount of carbon dioxide gas and water in the produced liquid cannot be effectively separated, the corrosion of subsequent equipment will be aggravated. [0003] due to CO 2 Compared with conventional associated gas, the dissolution and desorption characteristics in the produced fluid are very different, so that the existing oil and gas separation methods (mainly including gravity separation, inertial separation, filtration separation, centrifugal separation and combinations of various methods) c...

AI Technical Summary

Problems solved by technology

When CO 2 When gas channeling occurs in the middle and late stages of oil displacement, it will often cause CO 2 The gas content increases sharply. If a large amount of carbon dioxide gas and water in the produced liquid cannot be effectively separated, the corrosion of subsequent equipment will be aggravated

[0003] due to CO 2 Compared with conventional associated gas, the dissolution and desorption characteristics in the produced fluid are very different, so that the existing oil and gas separation methods (mainly including gravity separation, inertial separation, filtration separation, centrifugal separation and combinations of various methods) cannot Realize CO within the stipulated time 2 Efficient desorption of gases

[0004] The gas-liquid separator is the most widely used and most important gas-liquid separation equipment in oil and gas fields. 2 After gas channeling occurs in the oil flooding field, a large amount of CO will be dissolved in the produced fluid 2 For the problem of gas, at present, in the field production, the residence time of the produced liquid in the separator is only extended based on experience in order to achieve the ideal degree of desorption, but the effect is not obvious

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