Polymer stretching and mass transfer integrated overspeed dissolving device and dissolving method thereof

Abstract

The polymer stretching and mass transfer integrated overspeed dissolving device is characterized in that the device is composed of a liquid storage cavity, 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, and the upper fixed fluted disc, the movable fluted disc and the lower fixed fluted disc are each provided with a plurality of through holes; the upper fixed fluted disc and the lower fixed fluted disc are fixed on a shell or a liquid storage cavity of the dissolving device, the surfaces, close to the movable fluted disc, of the upper fixed fluted disc and the lower fixed fluted disc adopt short tooth structures and are uniformly meshed with the short tooth structures on the two surfaces of the movable fluted disc, the stretching units are repeatedly arranged in series from top to bottom, and each stretching unit further comprises a transmission shaft and a motor. A mass transfer unit is arranged below the stretching unit, the mass transfer unit comprises an inner ring and an outer ring which can coaxially and reversely rotate, a uniform solution is formed after passing through the mass transfer unit, installation is easy, 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 polymer rapid dissolving method, in particular to a polymer stretching mass transfer integrated ultra-fast dissolving device 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 hydrophobic g...

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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