可生物降解三元共聚物阻垢剂的合成与表征

Synthesis and Characterization of Biodegradable Terpolymer Scale Inhibitors.

作者信息

Gao Fei, Xu Peng, Zhang Yongqing, Zhang Hui

机构信息

School of Petroleum Engineering, Yangtze University, Wuhan 430100, China.

National Engineering Research Center for Oil & Gas Drilling and Completion Technology, Yangtze University, Wuhan 430100, China.

出版信息

Materials (Basel). 2025 Sep 5;18(17):4163. doi: 10.3390/ma18174163.

DOI:10.3390/ma18174163

PMID:40942589

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC12430464/

Abstract

To address scaling issues in oilfield water injection, a degradable terpolymer scale inhibitor MA-AA-AMPS (terpolymer)was synthesized via aqueous solution polymerization using maleic anhydride, acrylic acid, and 2-acrylamido-2-methylpropanesulfonic acid as monomers. Characterization confirmed the presence of carboxyl, sulfonic, and amide groups in the copolymer with good thermal stability. Scale inhibition tests showed that at 2% dosage, its scale inhibition efficiency exceeded 80%, remaining above 80% in the pH range of 3-8 and over 50% at 150 °C, with excellent tolerance to high-calcium environments. Biodegradation tests revealed BOD/COD > 0.3, with a biodegradation rate exceeding 50% in 15 days and reaching 83.4% in 30 days, indicating environmental friendliness. This scale inhibitor effectively solves scaling problems in oilfield water injection systems.

摘要

为解决油田注水过程中的结垢问题，以马来酸酐、丙烯酸和2-丙烯酰胺基-2-甲基丙烷磺酸为单体，通过水溶液聚合反应合成了一种可降解的三元共聚物阻垢剂MA-AA-AMPS（三元共聚物）。表征结果证实该共聚物中存在羧基、磺酸基和酰胺基，且具有良好的热稳定性。阻垢试验表明，在加药量为2%时，其阻垢率超过80%，在pH值为3-8的范围内保持在80%以上，在150℃时超过50%，对高钙环境具有优异的耐受性。生物降解试验表明BOD/COD>0.3，生物降解率在15天内超过50%，30天时达到83.4%，表明其具有环境友好性。这种阻垢剂有效地解决了油田注水系统中的结垢问题。