Viscosity reduction and coalescence device based on mechanical shearing and cyclone principle

Abstract

The invention relates to a viscosity reduction and coalescence device based on a mechanical shearing and cyclone principle. The device comprises a viscosity reduction and coalescence outer cylinder, apositioning sleeve, a positioning supercharging platform, a viscosity reduction and coalescence sleeve, an oil guide pipe and an oil guide rod; the lower end of the viscosity reduction and coalescence outer cylinder is connected with the positioning sleeve; a tangential inlet is arranged at the upper end of a coalescence cavity; a viscosity reduction and coalescence cone is matched with a viscosity reduction and shearing platform; a bearing positioning disc is arranged at the bottom of the positioning sleeve; the positioning supercharging platform is fixed on the bearing positioning disc; theviscosity reduction and coalescence sleeve comprises an oil guiding conical pipe, a coalescence pipe and a positioning rod; the oil guiding conical pipe is arranged at the upper part of the coalescence pipe; the coalescence pipe is centrally arranged in the positioning supercharging platform; an annular supercharging and shearing ladder platform is arranged outside the upper end of the coalescence pipe; the supercharging and shearing ladder platform is matched with the viscosity reduction and shearing ladder platform at the lower end of a conical cavity; the positioning rod is connected withthe positioning supercharging platform; and coalescence guide plates are uniformly arranged on the inner wall of the oil guiding conical pipe. According to the device, viscosity reduction and coalescence are realized in the same device, and viscosity reduction treatment on polymer solution and coalescence treatment on oil drops are realized.

Description

Technical field: [0001] The invention relates to a viscosity-reducing coalescence device applied in the fields of petroleum, chemical industry, etc., and specifically relates to a viscosity-reducing coalescence device based on the principle of mechanical shear and swirling flow. Background technique: [0002] With the continuous development of the national economy, the demand for oil in today's society is increasing year by year, while the oil reserves are decreasing day by day. After primary, secondary and tertiary oil recovery, the water content of the produced fluid has been increasing continuously. Most oil fields in my country have entered the stage of high water content production. In order to improve the recovery of crude oil, new oil displacement technologies have been proposed. Due to its own viscosity characteristics, the polymer solution has the functions of reducing the longitudinal permeability of the formation, reducing the oil-water viscosity ratio and increas...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a kind of viscosity reducing coalescence device based on mechanical shearing and swirling flow principle, this viscosity reducing coalescence device based on mechanical shearing and swirling flow principle is used to solve the problem due to the application of polymer flooding technology Polymerization in the production fluid increases the viscosity of the production fluid and the emulsification degree of the oil, which brings difficulties to the subsequent water treatment work

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