RT Journal Article
T1 Rheological characterisation of xanthan gum in brine solutions at high temperature
A1 Reinoso, David
A1 Martín Alfonso, María José
A1 Luckham, Paul F.
A1 Martínez Boza, Francisco José
AB Xanthan gum solutions are used in the oil industry for flooding, drilling and completion operations. The stabilization of the structure of xanthan gum solutions in presence of salts increases the value of both the order-disorder transition temperature and the gel strength. This effect is very important in order to design drilling and completion fluids since not only density and viscosity of the fluid can be improved by increasing the concentration of salts but also the range of temperature where the solution shows viscoelastic behaviour can be extended. This paper presents results from a study on the rheological behaviour of xanthan gum solutions in different saturated brines. Chloride and formate potassium brines not only increase the viscosity of the solution but also extend the shear thinning behaviour to temperatures near 200ºC, maintaining a simple relaxation mechanism over the whole range of temperature where the ordered conformation dominates the rheological behaviour.
PB Elsevier
SN 0144-8617
SN 1879-1344
YR 2019
FD 2019
LK https://hdl.handle.net/10272/27665
UL https://hdl.handle.net/10272/27665
LA eng
NO Reinoso, D., Martín-Alfonso, M. J., Luckham, P. F., & Martínez-Boza, F. J. (2019). Rheological characterisation of xanthan gum in brine solutions at high temperature. Carbohydrate Polymers, 203, 103–109. https://doi.org/10.1016/j.carbpol.2018.09.034
DS Repositorio Institucional de la Universidad de Huelva
RD 30 may 2026