Simulation and optimization of working parameters of the rapid-dissolution device of hydrophobically associating polymer

Abstract

To solve the dissolution problem of hydrophobically associating polymers during the application process, a rapid-dissolution device was developed and optimized. The relevant parameters of the device were simulated with a focus on the fluid-passing capacity, rotating speed, and device structure to study the dissolution effect using the Fluent software. The results indicated that under the condition that the fluid-passing capacity of a single rapid-dissolution device was 12 m3/h, the viscosity of the hydrophobically associating polymer solution allowed to pass through the device should not exceed 21 mPa s. When the rotating speed of the rotor was 1440 rpm, the polymer had uniform distribution when passing through the device and could achieve a good tensile dissolution effect. By installing a fan blade in the device, the retention problem of polymer swelling particles in the dissolution device was solved, and the dispersion and dissolution of the polymer are promoted. The rapid-dissolution device was suitable for the dissolution of hydrophobically associating polymers in the oil field and so as to promote the application of hydrophobically associating polymers.