缓交联氨基树脂冻胶成胶性能

Science Technology and Engineering(2019)

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Abstract
深部调剖是高含水油田控水稳油的重要措施.低油价下深部调剖需要成胶时间长、成胶后强度高的冻胶堵剂.以低质量分数的部分水解聚丙烯酰胺(HPAM)为成胶液,以氨基树脂为交联剂,研究了氨基树脂冻胶的成胶规律及其使用条件.研究结果表明,在乙酸催化下,氨基树脂可和低质量分数HPAM交联形成冻胶,该冻胶可以在70 ℃、盐含量为10 174 mg·L-1以下地层使用.成胶时间大于3 d,冻胶强度可达到G级以上,冻胶90 d脱水率小于10% ,适合深部调剖.
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