Preparation and Laboratory Evaluation of a New Type of Cross-Linking Agent for Acid Fracturing Fluid System

Abstract:

A type of zirconium-organic cross-linking agent with excellent temperature resistance and delaying performance was prepared for acid fracturing fluid system. The factors influencing on the synthetic process of the zirconium-organic cross-linking agent were investigated and the optimum condition was obtained: 5% zirconium oxychloride, 20% ligands, reaction temperature 50~55°C, reaction time 4.0~5.0h. Then the best technology for zirconium-organic cross-linking agent and the laboratory evaluation for the acid fracturing fluid system were studied. The results showed that using the cross-linking agent can obviously improve the temperature resistance, delaying performance and the shearing resistance of the acid fracturing fluid system. Meanwhile, the zirconium-organic cross-linking agent had excellent gelout performance and sand-carrying performance, which can satisfy the fracturing operation requirement for the reservoirs below 100°C.

• Periodical: Advanced Materials Research (Volumes 347-353)
• Pages: 995-1000
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.347-353.995
• Online since: October 2011
• Authors: Xiang Bo Wei, Xiao Rui Li, Xiao Jia Xue, Li Ding
• Keywords: Acid Fracturing Fluid, Cross-Linking Agent, Influence Factor, Laboratory Evaluation, Temperature Resistance

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