A novel polymer gel system with low density property for preferential flow control to enhanced oil recovery DOI
Chuanhong Kang, Jixiang Guo,

Dongtao Fei

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

Polymer gels have been widely used in reservoir flow control, profile and enhanced oil recovery. However, the density of gel is usually higher than formation water, so will precipitate resulting poor or even ineffective water plugging. Inspired by aerogel materials known for their porous structure extremely low density, PSC, we mean a terpolymer mixing system consisting polyurethane, vaporous hydrophobic silica nanoparticles, cellulose nanofibers. A regulator (PSC-Sponge) was prepared one-step freeze-drying PSC. PSC-Sponge significantly reduces before after gelation, with maximum densities gelation lowered to 0.82 0.85 g/cm3, respectively. novel method based on optical micro-rheology innovatively proposed study time viscoelastic changes without external force addition PSC-Sponge. Experimental results demonstrate that markedly enhances mechanical strength, temperature resistance, performance gel, improving network form dense three-dimensional network. Field test show low-density can effectively reduce content well, well reduced from 100% 21%, cumulative increase 3707 t. Low kind control agent resistant dilution, it provides experimental basis field guidance plugging enhance recovery high cut reservoir.

Language: Английский

Biopolymer aerogels: Structural and functional tailoring of starch/sodium alginate networks DOI
Marija Lučić Škorić, Ivana Lukić, Milica Pantić

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142774 - 142774

Published: April 1, 2025

Language: Английский

Citations

1
A novel polymer gel system with low density property for preferential flow control to enhanced oil recovery DOI
Chuanhong Kang, Jixiang Guo,

Dongtao Fei

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

Polymer gels have been widely used in reservoir flow control, profile and enhanced oil recovery. However, the density of gel is usually higher than formation water, so will precipitate resulting poor or even ineffective water plugging. Inspired by aerogel materials known for their porous structure extremely low density, PSC, we mean a terpolymer mixing system consisting polyurethane, vaporous hydrophobic silica nanoparticles, cellulose nanofibers. A regulator (PSC-Sponge) was prepared one-step freeze-drying PSC. PSC-Sponge significantly reduces before after gelation, with maximum densities gelation lowered to 0.82 0.85 g/cm3, respectively. novel method based on optical micro-rheology innovatively proposed study time viscoelastic changes without external force addition PSC-Sponge. Experimental results demonstrate that markedly enhances mechanical strength, temperature resistance, performance gel, improving network form dense three-dimensional network. Field test show low-density can effectively reduce content well, well reduced from 100% 21%, cumulative increase 3707 t. Low kind control agent resistant dilution, it provides experimental basis field guidance plugging enhance recovery high cut reservoir.

Language: Английский

Citations

0