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Evaluation of rheological properties of a novel thermo-viscosifying functional polymer for enhanced oil recovery
- Source :
- Colloids and Surfaces A: Physicochemical and Engineering Aspects. 532:405-410
- Publication Year :
- 2017
- Publisher :
- Elsevier BV, 2017.
-
Abstract
- Polymer flooding is one of the most effective processes to enhance oil recovery (EOR), but the poor thermo-stability and salt tolerance of the currently used water-soluble polymers challenge their usage in presence of high temperatures and salinity within the oil reservoirs. Thermo-viscosifying polymers (TVP’s) are a novel class of materials developed for EOR applications in high-temperature and high-salinity oil reservoirs. In this study, the interactions of novel TVP with different salts and its temperature and rheological properties were evaluated. The thermal and rheological properties of this polymer were studied as a function of polymer concentration, and salinity at different temperatures. It was observed that by increasing temperature, the aqueous solution viscosities first smoothly decreased, but then increased at above the critical association temperature (T cass ). T cass was also found to be a function of the TVP’s concentration and temperature. Although, the shear effect demonstrated shear-thinning, with the increase of temperature, the shear viscosities showed shear thickening at all concentrations of polymer. Furthermore, the novel TVP with low concentration showed good viscoelastic properties compared with high concentration of HPAM. The introduced novel TVP’s thermo-thickening tendency is enhanced by increasing temperature and salinity which makes it more promising for EOR applications.
- Subjects :
- chemistry.chemical_classification
Dilatant
Materials science
Aqueous solution
Temperature salinity diagrams
02 engineering and technology
Polymer
010402 general chemistry
021001 nanoscience & nanotechnology
01 natural sciences
Viscoelasticity
0104 chemical sciences
Salinity
Colloid and Surface Chemistry
chemistry
Rheology
Chemical engineering
Organic chemistry
Enhanced oil recovery
0210 nano-technology
Subjects
Details
- ISSN :
- 09277757
- Volume :
- 532
- Database :
- OpenAIRE
- Journal :
- Colloids and Surfaces A: Physicochemical and Engineering Aspects
- Accession number :
- edsair.doi...........75e3dd6c062c94f4f7876f31f64274ff