摘要
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10174 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。
Deep profile control is an important measure to control water and stabilize oil in high water-bearing oilfields.Deep profile control under low oil price requires gel has long gelation time and high strength after gelation.The partially hydrolyzed polyacrylamide(HPAM)with low mass fraction was used as the gelling solution,and the amino resin was used as the crosslinking agent to study the gelation rule and its application conditions of the amino resin gel.The results show that under the catalysis of acetic acid,amino resin can be crosslinked with low mass fraction HPAM to form gel,which can be used in formation below 70℃and salt content below 10174 mg/L.The gelation time is more than 3 days,the gel strength can reach G grade or above,and the gelatin gel dehydration rate is less than 10%in 90 days,which is suitable for deep profile control.
作者
郭洪宾
吴昊
赵赛
韩胜霞
吴千慧
葛际江
GUO Hong-bin;WU Hao;ZHAO Sai;HAN Sheng-xia;WU Qian-hui;GE Ji-jiang(Petroleum Engineering Institute, China University of Petroleum(East China), Qingdao 266580, China)
出处
《科学技术与工程》
北大核心
2019年第35期177-181,共5页
Science Technology and Engineering
基金
国家自然科学基金(51574266)资助
关键词
深部调剖
冻胶
氨基树脂
高含水
提高采收率
deep profile control
gel
amino resin
high water content
enhanced oil recovery
