«Proceedings of Gubkin University»

Study of aqueous solutions of hydrolyzed polyacrylamide using oscillation test: choice of optimal parameters

UDC: 678.745.842
DOI: -

Authors:

¹ National University of Oil and Gas “Gubkin University”, Moscow, Russian Federation

Keywords: rheology, oscillation studies, amplitude and frequency tests, viscoelastic systems, mechanical models, polyacrylamide, polymer solution

Annotation:

As part of the study, solutions of various samples of partially hydrolyzed polyacrylamide (PAA), differing in molecular weight and the degree of hydrolysis of the polymer, as well as the concentration of the solution, were analyzed. The simplest model of viscoelastic fluid behavior, measuring systems and sequence of oscillation studies were considered, the information on the parameters of studies in the literature was systematized as well as. As a result, the dependence between selection of optimal parameters of amplitude and frequency test and properties of PAA samples of different molecular weight, degree of hydrolysis and concentration of solution was revealed. The optimal frequencies at which the widest range of linear viscoelastic properties (RLVE) was observed were determined. It was found that depending on the molecular weight, the degree of hydrolysis and the concentration of PAA in the solution, the frequency range changed, with no destruction of the viscoelastic structure of the solution observed.

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