Characterization of viscoelastic properties of hydrolyzed polyacrylamide using the stress recovery experiment (original) (raw)

Chinese Science Bulletin, 2004

Abstract

ABSTRACT Polymer solutions have very important applications in the enhanced oil recovery due to their unique viscoelastic properties increasing microscale displacement efficiency. In this paper, the viscoelastic properties of partially hydrolyzed polyacrylamide (HPAM) solution have been investigated. Results show that the viscoelastic properties of HPAM increase with HPAM concentration increasing, and decrease with the increase of sodium dodecyl sulfate (SDS). Meanwhile, adding NaCl can destroy the viscoelastic properties.

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