Mass transfer stretching instant dissolving device with cleaning structure and dissolving method of mass transfer stretching instant dissolving device

Abstract

The invention discloses a mass transfer stretching instant dissolving device with a cleaning structure and a dissolving method thereof.The device is composed of a liquid inlet, a stretching repeating unit and a mass transfer unit, the stretching unit is sequentially composed of an upper fixed fluted disc, a movable fluted disc and a lower fixed fluted disc from top, the upper fixed fluted disc, the movable fluted disc and the lower fixed fluted disc are each provided with a plurality of through holes, and the upper fixed fluted disc and the lower fixed fluted disc are fixed to a dissolving device shell; the surfaces, close to the movable fluted disc, of the upper fixed fluted disc and the lower fixed fluted disc are of short tooth structures and are evenly meshed with the short tooth structures on the two faces of the movable fluted disc, the stretching units are repeatedly arranged in series from top to bottom, each stretching unit further comprises a transmission shaft and a motor, a sweeping structure is arranged below each stretching unit, and a mass transfer unit is arranged on the periphery of each stretching unit in a surrounding mode. The mass transfer unit comprises an inner ring and an outer ring which can coaxially and reversely rotate, a polymer gel solution forms a uniform solution after passing through the mass transfer unit, the device is easy to install, and through the combined action of forced stretching and supergravity mass transfer, rapid dissolution of a polymer is achieved, and the dissolution efficiency is improved.

Description

technical field [0001] The invention relates to a rapid dissolving method for polymers, in particular to a mass transfer stretching instant dissolving device with a cleaning structure and a dissolving method thereof. Background technique [0002] As one of the important methods for oilfield development to enhance oil recovery, polymer flooding has been widely used in onshore oilfields at home and abroad. However, due to the lack of fresh water resources in offshore oil fields, the injected water has high salinity and high content of calcium and magnesium ions. The traditional partially hydrolyzed polyacrylamide has insufficient salt resistance and low viscosity, which is far from meeting the requirements of offshore oil fields. Hydrophobically associative polymers have the characteristics of reversible three-dimensional network structure, good shear thinning and injectability, strong shear resistance, good salt resistance and high viscosity because of a small amount of hydr...

AI Technical Summary

Problems solved by technology

However, due to repeated cutting of the polymer molecular chain, the chain is broken, and the solution viscosity is reduced; at the same time, the swollen particles block the screen or the orifice plate, which cannot meet the requirements of polymer dispensing on offshore platforms.

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