Mechanism and Influencing Factors on the Initial Particle Size and Swelling Capability of Viscoelastic Microspheres

Abstract

Viscoelastic microspheres are spherical particles with a three-dimensional network structure and have obvious swelling capability. The initial particle size and swelling ratio were introduced to study the effect of preparation conditions and external environmental factors systematically. The initial particle size could be controlled by adjusting the preparation conditions. The swelling capability was affected by both preparation condition and external environmental factor. The mechanisms of swelling are formation of hydrogen-bonded hydrolysis and diffusion induced by osmotic pressure. This work can provide some references for the particle size adjustment of viscoelastic microspheres in the profile control and flooding of heterogeneous reservoirs.

Department(s)

Geosciences and Geological and Petroleum Engineering

Keywords and Phrases

Environmental Factor; Particle Size; Preparation Condition; Swelling Ratio; Viscoelastic Microsphere; Hydrogen Bonds; Microspheres; Osmosis; Reservoirs (Water); Viscoelasticity; Heterogeneous Reservoirs; Profile Control; Spherical Particle; Three Dimensional Network Structure

International Standard Serial Number (ISSN)

0193-2691

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2015 Taylor & Francis Inc., All rights reserved.

Publication Date

01 Nov 2015

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