Research on the Scale Inhibition Performance of AA/SAS Binary Polymer

Abstract:

The binary polymer AA/SAS was synthesized by acrylic acid (AA) and sodium allylsulfonate (SAS), named as AS and its structure was characterized. Its scale inhibition performance was also investigated for single CaCO₃, CaSO₄ scales, and composite scales in simulated formation water containing Ca²⁺, Mg²⁺, Ba²⁺ and Sr²⁺. The results indicate that when adding 50mg/L of the inhibitor, it is 85.05% efficient for CaCO₃ inhibition and 98.85% for CaSO₄, but only 49.05% and 51.58% for BaSO₄ and SrSO₄ separately. The scale inhibition performance is obvious in the simulated formation water with high concentration of calcium (1300mg/L) and low barium ion (100mg/L ), the inhibition efficiency are both above 85% at a dosage of 80mg/L. And it can fairly satisfy the demand of inhibiting composite scales (CaCO₃ scale, CaSO₄ scale, BaSO₄ scale and SrSO₄ scale), when AS and CT was combined at a mass ratio of 2:1 in high calcium , barium and strontium ions contained formation water, being 95.3% efficient at the dosage of 100mg/L.

• Periodical: Applied Mechanics and Materials (Volumes 448-453)
• Pages: 3949-3953
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.448-453.3949
• Online since: October 2013
• Authors: Shan Fa Tang*, Hui Liao, Lei Tian, Xiao Jie Wang, Xiao Yang Lei, Zhen Yang, Jing Xiang
• Keywords: Acrylic Acid, Barium and Strontium Scale, Binary Polymer, Calcium Scales, Composite Scales, High Calcium Ion, Scale Inhibition Performance, Sodium Allylsulfonate

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