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Sulfonation Modification of Guar Gum and Its Performance as a Fracturing Fluids Thickener Cover

Sulfonation Modification of Guar Gum and Its Performance as a Fracturing Fluids Thickener

Open Access
|Sep 2024

Abstract

To solve the contradiction between reducing water-insoluble content and maintaining high viscosity in the preparation of modified guar gum for oilfield fracturing fluid, in this work, sodium 3-chloro-2-hydroxypropylsulfonate was used as a modifier to prepare sulfonated guar gum. Orthogonal and single-factor extrapolation experiments were conducted to explore the effects of reaction conditions and the optimal process was determined as follows: reaction temperature of 26 oC, reaction time of 2.0 h, sodium hydroxide as a mass fraction of guar gum of 1.0%, and sodium 3-chloro-2-hydroxypropyl sulfonate dosage as a mass fraction of guar gum of 0.5%. Furtherly, the temperature stability, filtration property, and inhibition of formation clay of the sulfonated products were investigated. The results showed that the apparent viscosity of 0.6% solution of guar gum was increased by 33%, the water-insoluble content was decreased by 0.42%, and the temperature stability, filtration resistance, and clay inhibition were all improved. Especially, the viscosity of cross-linked sulfonated guar gum is 100% higher than that of unmodified guar gum. The structure of sulfonated guar gum was characterized and confirmed by infrared spectrum, DSC, thermogravimetric, and elemental analysis.

Language: English
Page range: 29 - 38
Published on: Sep 26, 2024
Published by: West Pomeranian University of Technology, Szczecin
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2024 Yonggen Yi, Lanbing Wu, Jie Zhang, Haiyang Wang, Xuan Xie, Chen Gang, published by West Pomeranian University of Technology, Szczecin
This work is licensed under the Creative Commons Attribution 4.0 License.