A three-phase electrostatic coalescence separator for oil, gas and water

Abstract

The invention discloses an oil-gas-water three-phase electrostatic coalescence separator, which comprises a separator main body, a gas-liquid separation module, a high-water coalescence module, a low-water coalescence module, a power supply and a control system; a gas-liquid separation module, a high water The coalescing module, low water content coalescing module, power supply and control system are located inside the main body of the separator; the gas-liquid separation module is vertically inserted into the left side of the horizontal cylinder, and the high water content coalescence module is located on the right side of the gas separation module; the low water content coalescence The junction module is located on the right side of the high water content coalescing module, and the power supply and control system is located on the right side of the weir plate. The oil, gas and water three-phase electrostatic coalescence separator of the present invention realizes the four-stage separation design of oil, gas and water through the gas-liquid separation module, the high water content coalescence module, the low water content coalescence module and the gravity sedimentation module in the horizontal cylinder body, which greatly simplifies the design on the one hand Separation technology realizes intensive separation; on the other hand, it can handle oil-water emulsions with a wide range of water content and significantly improve the separation effect.

Description

technical field [0001] The invention belongs to the technical field of multiphase separation of oil and gas gathering and transportation systems, and in particular relates to an oil, gas, and water three-phase electrostatic coalescence separator, which is suitable for the oil, gas, and water separation process of oil, gas, and water produced in land and offshore oil fields, and realizes gas-liquid separation and oil-water demulsification , has the advantages of compact structure, wide application range, high separation efficiency and full energy utilization. Background technique [0002] At present, most oil fields in my country mainly use the combination of gravity three-phase separator and electric dehydrator for gas-liquid separation and crude oil demulsification. However, as the oilfield gradually enters the middle and late stages of development, the water content of the produced fluid increases sharply. At the same time, the wide application of tertiary oil recovery tec...

AI Technical Summary

Problems solved by technology

However, this device only considers the dielectrophoresis phenomenon in the process of electrostatic coalescence in the first chamber, the effect of electrostatic coalescence in the second chamber cannot be guaranteed, and there is no accurate water layer monitoring system, the safety of the bare metal electrodes in the second chamber The safety cannot be guaranteed, and the transformer is externally installed, and the high-voltage circuit increases the risk

[0005] In summary, in view of the problems of low separation efficiency, easy breakdown of electrodes, and inability to effectively deal with high emulsification and high water content crude oil emulsions in the traditional three-phase separation process, it is necessary to invent a method for breaking high emulsification and high water content crude oil emulsions. The milk treatment effect is remarkable, and it is suitable for the oil-gas-water three-phase separation device of the produced fluid of land and offshore oilfields

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