石油钻采工艺Issue(3)：106-109,4.DOI:10.13639/j.odpt.2015.03.024
氧化/交联双重改性淀粉冻胶
Oxidized/crosslinking double-modiifed starch gel
摘要
Abstract
In view of the many troubles in the present snubbing services, a new type of gel material was developed using the merit of modiifed starch gel and in combination with the actual need. Lab experiments show that the initiator concentration, charge ratio of acrylamide and starch, reacting temperature and pH of the system affect the gelation time of modiifed starch gel and gel viscosity. The optimized mass ratio formula of oxidized/crosslinking modiifed starch gel is 3.6% starch, 0.03% ammonium persulfate, 14.5%acrylamide, 7.3%crosslinker A and 4.7%crosslinker B. When pH of the gel is within 8 to 12, the gelation time is adjustable within an hour. Lab evaluation shows that the applicable temperatures for the gel are 60℃to 120℃and its viscosity may be higher than 200×104 mPa·s.关键词
改性淀粉/冻胶/成胶时间/黏度Key words
modiifed starch/gel/gelation time/viscosity分类
能源科技引用本文复制引用
程立,陈瞰瞰,张慢来,刘德基,廖锐全,谷溢..氧化/交联双重改性淀粉冻胶[J].石油钻采工艺,2015,(3):106-109,4.基金项目
中国石油科技创新基金项目“不压井作业冻胶阀新材料的设计合成与性能评价”（编号2014D-5006-0309）资助。 （）
