Weak vortex thick oil defoaming separator

Abstract

The invention relates to a crude oil defoaming separating device, in particular to a weak vortex thick oil defoaming separator. The weak vortex thick oil defoaming separator comprises a liquid phase pipe and a gas phase pipe; the upper side of the liquid phase pipe communicates with the gas phase pipe; both an outlet end of the gas phase pipe and an outlet end of the liquid phase pipe are tilted downwards and a flow is guided to enter a cylinder along the tangential direction of the cylinder; a spiral vortex plate which separates the cylinder into an upper part and a lower part is fixedly mounted in the cylinder below the liquid phase pipe; a gas rising pipe which can communicate the cylinder above the vortex plate with the cylinder below the vortex plate is fixedly mounted in the centre of the vortex plate. The weak vortex thick oil defoaming separator is reasonable and compact in structure, safe and reliable in use, and high in defoaming and foam breaking efficiency; oil is separatedfrom gas thoroughly; the metering precision of a subsequent metering instrument is effectively improved; the safety of subsequent crude oil gathering and transporting pipelines and equipment is ensured effectively; the operating period of the equipment is effectively prolonged on the premise of ensuring high-efficiency operation of the equipment; the weak vortex thick oil defoaming separator is applicable to metering and separating of foamed crude oil of thick oil fire flooding development, CO2 flooding development and the like, and has a broad application prospect.

Description

technical field [0001] The invention relates to a crude oil defoaming and separating device, which is a weak swirling heavy oil defoaming and separating device. Background technique [0002] With the deepening of gas field development, in the process of oil and gas gathering and transportation, when crude oil undergoes gas-liquid separation in the separator, the gas dissolved in the crude oil will escape due to the pressure drop, and at this time, it contains carboxylic acid, colloid, asphaltenes Crude oil with natural surfactants such as wax will produce a lot of foam, and some foams will not burst after being stable in crude oil for 8 hours. These stable foams cause the following hazards to crude oil gathering and transportation: a) the foam has a strong adsorption capacity and can carry tiny solid impurities, causing the filter to be blocked. A large number of foams easily cause pump cavitation; The increase in volume leads to a decrease in measurement accuracy; c) a lar...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a weak swirl heavy oil defoaming separator, which overcomes the deficiencies of the above-mentioned prior art, and can effectively solve the problems of separation and metering with high viscosity, high density, and bubble content by using conventional domestic separators. For large crude oil, there are problems such as low separation efficiency, incomplete oil and gas separation, large measuring instrument errors and affecting the safe and efficient operation of crude oil gathering and transportation pipelines and equipment

Images