Treatment system and treatment method for fireflooding high exhaust gas well

Abstract

The invention discloses a treatment system and a treatment method for a fireflooding high tail gas well and relates to the technical field of thickened oil fireflooding oil wells. The treatment systemfor the fireflooding high tail gas well comprises a cyclone gas-liquid separator communicated with an oil extraction wellhead, an air cooler connected with the cyclone gas-liquid separator as well asa desulfurizing tower and a plurality of desulfurizing tanks connected with the air cooler, wherein the cyclone gas-liquid separator is used for reducing the water content of tail gas inputted fromthe oil extraction wellhead; the inlet end of the cyclone gas-liquid separator can be communicated with the outlet end of the air cooler; the plurality of desulfurizing tanks are connected in parallel. According to the application, the problems of effusion and freeze blockage of a tail gas pipeline and failure of a desulfurization agent caused by water logging can be solved; meanwhile, the purification degree of the tail gas is improved.

Description

technical field [0001] The invention relates to the technical field of heavy oil fire flooding oil wells, in particular to a treatment system and method for fire flooding high tail gas wells. Background technique [0002] With the continuous expansion of fire flooding development, the amount of tail gas is also increasing. Since the tail gas of the initial production well is desulfurized by single well and single tank dry method, the versatility of the desulfurization tank is poor. Due to the excessive gas volume of some wells, the degree of purification of tail gas cannot meet the emission standards , therefore, the H in the exhaust gas 2 S and residual O 2 Bring great hidden trouble to safe production. On the other hand, due to the high humidity of production well tail gas in fire flooding development, the increase of gas volume will lead to the increase of wet water vapor in its components. Frost diameter shrinkage, liquid accumulation and freezing blockage will cause ...

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Problems solved by technology

[0002] With the continuous expansion of fire flooding development, the amount of tail gas is also increasing. Since the tail gas of the initial production well is desulfurized by single well and single tank dry method, the versatility of the desulfurization tank is poor. Due to the excessive gas volume of some wells, the degree of purification of tail gas cannot meet the emission standards , therefore, the H in the exhaust gas 2 S and residual O 2 Great hidden danger to production safety

On the other hand, due to the high humidity of production well tail gas in fire flooding development, the increase of gas volume will lead to the increase of wet water vapor in its components. Frost diameter shrinkage, liquid accumulation and freezing blockage will cause pressure rise in the system. The system pressure increase caused by the increase in gas volume and pipeline freezing blockage will also bring huge difficulties to production management and seriously affect the development of fire flooding. Effect

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