Polymer swelling particle dissolution acceleration device provided with quick-dissolving ring and cleaning groove

Abstract

The invention discloses a polymer swelling particle dissolution acceleration device provided with a quick-dissolving ring and a cleaning groove. The device comprises a liquid storage cavity and a stretching mechanism, wherein the stretching mechanism is arranged in the liquid storage cavity; the stretching mechanism comprises an upper fixed tooth disc, a movable tooth disc and a lower fixed tooth disc, which are sequentially matched from top to bottom; the lower surface of the upper fixed tooth disc is provided with concentric circle gear rings a; each concentric circle gear ring a consists of upper fixed teeth; the upper surface and the lower surface of the movable tooth disc are respectively provided with concentric circle gear rings b; each concentric circle gear ring b consists of movable teeth; the upper surface of the lower fixed tooth disc is provided with concentric circle gear rings c; each concentric circle gear ring c consists of lower fixed teeth; the movable teeth are respectively meshed and matched with the upper fixed teeth and the lower fixed teeth; a plurality of trapezoidal grooves are respectively arranged in the end surfaces on which the upper fixed teeth are meshed with the movable teeth and the lower fixed teeth are meshed with the movable teeth; the upper fixed tooth disc and the lower fixed tooth disc are respectively fixed on the side wall of the liquid storage cavity; the movable tooth disc is fixed in the liquid storage cavity by a transmission shaft; and the transmission shaft is connected with a power mechanism. The dissolution acceleration device can be used for obtaining a uniform hydrophobic associated polymer solution within a short time, and can be used for a polymer flooding technology under the condition of hypersalinity.

Description

technical field [0001] The invention relates to a forced stretching instant dissolving device for accelerating partial hydrolysis of polyacrylamide polymers, in particular to an accelerating polymer swelling particle dissolving device with an instant dissolving ring and a cleaning tank. Background technique [0002] Polymer flooding, as one of the important methods to enhance oil recovery in oilfield development, has been widely used in onshore oilfields at home and abroad. Due to the lack of fresh water resources in offshore oilfields, the injected water has high salinity and high content of calcium and magnesium ions. Traditional partially hydrolyzed polyacrylamide has insufficient salt resistance and low viscosity, which is far from meeting the requirements of offshore oil fields. Due to the small number of hydrophobic groups on the main chain of the hydrophobic association polymer, the solution has the characteristics of a reversible three-dimensional network structure,...

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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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