Potential applications of poly(vinyl alcohol)-congo red aqueous solutions and hydrogels as liquids for hydraulic fracturing

The authors report on the viscoelastic characterization of guar hydrogels obtained through complexation reactions with borax ions. These gels are compared with hydrogels obtained from poly(vinyl alcohol) of different degree of hydrolysis through complexation reactions with congo red. The effect of t...

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Detalles Bibliográficos
Autores principales: Vega, I., Fernández, E., Mijangos, C., D'Accorso, N., Lopez, D.
Formato: JOUR
Materias:
Fracturing liquids
Guar
Hydrogels
PVA
Viscoelastic properties
Azo dyes
Borate minerals
Concentration (process)
Elastic moduli
Fracture
Gelation
Hydraulic fracturing
Hydraulics
Hydrolysis
Liquids
Polyvinyl alcohols
Rock mechanics
Solutions
Aqueous solutions
Complexation reactions
Congo reds
Poly(vinyl alcohol)
Potential applications
Viscoelastic characterizations
Colloids
concentration
fracture
hydraulics
hydrogel
polymer solution
polyvinyl alcohol
viscoelasticity
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00218995_v110_n2_p695_Vega
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
Descripción
Sumario:The authors report on the viscoelastic characterization of guar hydrogels obtained through complexation reactions with borax ions. These gels are compared with hydrogels obtained from poly(vinyl alcohol) of different degree of hydrolysis through complexation reactions with congo red. The effect of the degree of hydrolysis and both, the concentration of PVA and the concentration of congo red, on the viscoelastic properties of the hydrogels is analyzed. The potential use of the PVA-based hydrogels as hydraulic fracturing liquids is discussed in relation to the commonly used fracturing liquid based on the guarborax system. © 2008 Wiley Periodicals, Inc.

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