Carbon dioxide foam generating device for carbon dioxide drive

Abstract

The invention discloses a carbon dioxide foam generating device for carbon dioxide drive. The carbon dioxide foam generating device comprises a carbon dioxide tank, a gas guide pipe, a check valve, afoam generating box, a foam generating liquid tank, a foam guide pipe, a first rotating rod, a first motor, a second rotating rod, a gas inlet pipe, a second turbine, an installing box, a single gear,an electric control valve, an exhaust pipe, a second motor, an annular heat conduction plate, an annular heating box, a second stirring blade, a shaft rod, a first turbine, a connecting rod, a refrigeration sheet, an annular rotating plate, a gear ring, a single-chip microcomputer, a control panel, a first stirring blade and a temperature sensor. Carbon dioxide foam can be better stirred when conveyed and is prevented from being liquefied, and therefore the foaming efficiency of the carbon dioxide foam is greatly improved; the temperature of the carbon dioxide foam can be better adjusted, thefoam quality is prevented from being influenced by the too high temperature difference, the carbon dioxide drive efficiency is greatly improved, and meanwhile practicability is enhanced.

Description

technical field [0001] The invention relates to a carbon dioxide foaming device, in particular to a carbon dioxide foaming device for carbon dioxide oil flooding, and belongs to the technical field of carbon dioxide oil flooding. Background technique [0002] Carbon dioxide flooding is to inject carbon dioxide into the oil layer to increase oil recovery. Since carbon dioxide is a gas with high solubility in oil and water, when it dissolves in a large amount in crude oil, it can expand the volume of crude oil and reduce its viscosity. Reducing the interfacial tension between oil and water, carbon dioxide flooding has the advantages of wide application range, low cost of oil displacement, and significant increase in oil recovery. Carbon dioxide foaming is an essential step in carbon dioxide flooding. [0003] Most of the existing carbon dioxide foaming is made by foaming agent and carbon dioxide is foamed by stirring and mixing, so that the carbon dioxide foam is easily liquef...

AI Technical Summary

Problems solved by technology

[0003] Most of the existing carbon dioxide foaming is made by foaming agent and carbon dioxide is foamed by stirring and mixing, so that the carbon dioxide foam is easily liquefied during the foam delivery, thereby reducing the foaming efficiency of the carbon dioxide foam, and the carbon dioxide foam requires The temperature is also relatively limited, too high or too low temperature will affect the quality of carbon dioxide foam, thereby reducing the efficiency of carbon dioxide flooding

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