Potential applications of poly(vinyl alcohol)‐congo red aqueous solutions and hydrogels as liquids for hydraulic fracturing |
| |
| Authors: | Isabel Vega Emiliano Fernández Carmen Mijangos Norma D'Accorso Daniel López |
| |
| Affiliation: | 1. Instituto de Ciencia y Tecnología de Polímeros, C.S.I.C., c/ Juan de la Cierva 3, 28006 Madrid, Spain;2. Centro de Investigaciones en Hidratos de Carbono (CIHIDECAR‐CONICET). Dpto. Química Orgánica, FCEyN, University of Buenos Aires, Intendente Güiraldes 2160 Ciudad Universitaria, C1428EGA Buenos Aires, Argentina |
| |
| Abstract: | 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 guar–borax system. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008 |
| |
| Keywords: | PVA guar hydrogels viscoelastic properties fracturing liquids |
|
|
