高强度铬冻胶调剖体系的室内研究  

Laboratory Study on High Strength Chromic Gel Profile Control System

作　　者：仝宇轩[1] 宋海洋[2] 

机构地区：[1]西安石油大学石油工程学院,陕西西安710065 [2]延长油田股份有限公司永宁采油厂,陕西延安717500

出　　处：《辽宁化工》2013年第9期1034-1036,共3页Liaoning Chemical Industry

摘　　要：实验室研制了一种以部分水解聚丙烯酰胺、有机铬为主剂的冻胶体系。在70℃条件下考察了主剂浓度、矿化度、温度、pH值等对体系成胶性能的影响。结果表明,该体系在矿化度〈20000mg/L、温度65~80℃、pH值为5~7时,生成的冻胶突破真空压力达到0.080MPa以上。由岩心封堵试验得到,该冻胶体系对模拟岩心的封堵率高达97%。A gel system containing HPAM and organic chromium was developed in laboratory. Effects of concentration of main agents, salinity, temperature, pH on performance of the system were studied at 70 ℃. The results show that the formed gel can present high strength when salinity is below 20 000 mg / L, temperature is between 65 ℃ and 80 ℃, pH is between 5 and 7. The core plugging experiment shows that the plugging rate of cores can be over 97%.

关 键 词：冻胶 聚丙烯酰胺 有机铬 成胶时间 成胶强度 

分 类 号：TE357[石油与天然气工程—油气田开发工程]