In-situ rheology and mechanical degradation of EOR polyacrylamide solutions under moderate shear rates

Ahmed M. Mansour, Rashid S. Al-Maamari, Abdulaziz S. Al-Hashmi, Alan Zaitoun, Hamed Al-Sharji

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

A study of rheological behavior and mechanical degradation of hydrolyzed polyacrylamides (anionic) used in EOR/IOR applications under low-to-medium shear rates (γ-1) has been carried out. Aqueous polymer solutions have been injected into a core sample. Polymer degradation rate was evaluated from the flow induced viscosity loss of the polymer solution. Polymer degradation and mobility reduction were evaluated at different shear rates, salinities and concentrations. The effects of polymer viscosity, brine salinity and re-circulation of polymer effluent on degradation were investigated. The experiments revealed that polymer degradation in cores is low (

Original languageEnglish
Pages (from-to)57-65
Number of pages9
JournalJournal of Petroleum Science and Engineering
Volume115
DOIs
Publication statusPublished - 2014

Fingerprint

Polyacrylates
rheology
Rheology
Shear deformation
polymer
Degradation
degradation
Polymers
Polymer solutions
Viscosity
Core samples
viscosity
salinity
Effluents
in situ
rate
brine
effluent
Experiments
experiment

Keywords

  • Adsorption
  • HPAM
  • Mechanical degradation
  • Mobility reduction
  • Permeability reduction

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Fuel Technology

Cite this

In-situ rheology and mechanical degradation of EOR polyacrylamide solutions under moderate shear rates. / Mansour, Ahmed M.; Al-Maamari, Rashid S.; Al-Hashmi, Abdulaziz S.; Zaitoun, Alan; Al-Sharji, Hamed.

In: Journal of Petroleum Science and Engineering, Vol. 115, 2014, p. 57-65.

Research output: Contribution to journalArticle

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AU - Zaitoun, Alan

AU - Al-Sharji, Hamed

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KW - Mechanical degradation

KW - Mobility reduction

KW - Permeability reduction

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