改性淀粉-丙烯酰胺强凝胶堵剂的封堵性能研究  

STUDY ON THE PLUGGING PERFORMANCE OF MODIFIED STARCH-ACRYLAMIDE AS ONE STRONG GEL PLUGGING AGENT

作　　者：韩秀贞[1,2] 李宏岭[2,3] 侯吉瑞[2] 张宏峰[4] 

机构地区：[1]中国石化石油勘探开发研究院,北京100083 [2]中国石油大学提高采收率研究中心,北京102249 [3]中国石化国际石油勘探开发公司,北京100083 [4]大庆油田有限责任公司第六采油厂,黑龙江大庆163114

出　　处：《大庆石油地质与开发》2010年第3期121-123,共3页Petroleum Geology & Oilfield Development in Daqing

基　　金：国家科技攻关项目（2003BA613）资助.

摘　　要：用常规堵剂深部封堵窜流型地层较困难，室内研发了以改性淀粉和丙烯酰胺接枝共聚物、有机复合交联剂和引发剂为主要成分的强凝胶堵剂，采用30m超长填砂管检测其深部运移特性和深部封堵性能。实验表明，该堵剂具有良好的深部运移能力、较强的抗剪切能力、较好的选择封堵性和极强的封堵性能，能够满足吉林油田矿场需要。It is relatively not easy to shut-off the channeling formation in the deep part with conventional plugging agents. So, strong gel plugging agent, of which the main components include modified starch he acrylamide grafting copolymerization, organic compound cross linker and initiating agents, has been prepared in lab. One 30m super-long sand-packed tube has been used to study on the migration behavior in the deep and the plugging performance. Indoor experiments show that the plugging agent has better migratory capability in the deep, stronger shearing resistance, and good plugging performance. This agent can meet the needs in Jilin oilfield.

关 键 词：改性淀粉-丙烯酰胺接枝共聚物 深部封堵 深部运移 抗剪切 封堵性能 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]