一种低温底水油藏化学隔板堵剂体系的室内研究  

Laboratory Study on Chemical Barrier of Water Plugging Agent System for Bottom Water Reservoirs with Low Temperature

作　　者：方位 王健[1] 刁长军[2] 王丹翎[1] 陶少聃 熊露燕 

机构地区：[1]西南石油大学油气藏地质及开发工程国家重点实验室,四川成都610500 [2]中石油新疆油田分公司勘探开发研究院,新疆克拉玛依834000

出　　处：《长江大学学报（自科版）（上旬）》2015年第7期21-23,66,共4页JOURNAL OF YANGTZE UNIVERSITY (NATURAL SCIENCE EDITION) SCI ＆ ENG

基　　金：中国石油科技创新基金项目(2011D-5006-2010)

摘　　要：针对低温底水油藏底水水锥问题,研制了一种以脲醛树脂为主剂,在低温（20～60℃）条件下能成功固化的化学隔板堵剂体系。通过室内对比试验确定了堵剂体系最佳配方：主剂脲醛树脂加量为40%～50%,复合固化剂GH-1浓度为800～1000mg/L,调节剂浓度范围1000～3000mg/L,体系固化时间11～51h可调,固化强度为6.8～12.8MPa。并依照优化配方配置堵剂体系,从耐温稳定性、抗盐稳定性、封堵率及封堵强度、注入性能4个方面对其进行了室内性能评价。结果表明,该堵剂体系能在低温条件下形成高强度化学隔板,并具有较好的稳定性与封堵性。For solving the problem of water coning in bottom water reservoirs with low temperature,a chemical barrier of water plugging agent with the urea-formaldehyde resin used as the main agent was developed,which was successfully cured at the low temperature(20~60℃).The optimum formula was 40%~50% volume fraction of urea-formaldehyde resin,800~1000mg/L curing agent GH-1,1000~3000mg/L regulator.Curing time was ranging from 11 hto 51h,and curing strength was 6.8~12.8MPa.Laboratory evaluation on temperature resistance,salt resistance,plugging performance and injection performance efficiency shows that this plugging agent can form a high-strength chemical barrier at low temperature with preferable stability and sealing characteristics.

关 键 词：化学隔板堵剂体系 脲醛树脂 复合固化剂 耐温稳定性 抗盐稳定性 封堵率及封堵强度 注入性能 

分 类 号：TE254[石油与天然气工程—油气井工程]