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| 阴、阳离子聚合物交替注入用于注聚区封窜和调剖 | |
| 引用本文： | 王海英,李继勇,唐功勋,张玉林,孙长高.阴、阳离子聚合物交替注入用于注聚区封窜和调剖[J].山东科学,2003,16(2):45-48. |
| 作者姓名： | 王海英 李继勇 唐功勋 张玉林 孙长高 |
| 作者单位： | 1. 胜利油田有限公司采油工艺研究院,山东,东营,257000 2. 胜利油田有限公司东辛采油厂工艺所,山东,东营,257000 3. 山东省科学院新材料研究所,山东,济南,250014 |
| 摘 要： | 胜利孤岛油田注聚区块过早见聚,为封堵聚合物从油井窜流产出和调整注聚剖面,研制出阳离子调剖剂NCP。室内试验结果表明,向用1000mg/L的HPAM驱油后的岩心中注入1.5×10~4～3.0×104mg/L的NCP1.0PV,在70℃恒温24h后的堵油率大于96％,突破压力梯度2.6～3.3MPa/m。注入2.0×10~4mg/L NCP溶液的岩心,连续注入50PV含800mg/LHPAM的地层水,水相渗透率持续下降;在岩心试验中,堵水率随NCP浓度的增大而增大。结果表明:NCP可用于注聚区块调整注聚剖面,在孤岛注聚区进行的5井次封窜试验中,3口井收到良好效果。 |
| 关 键 词： | 阳离子聚合物 阳离子改性淀粉 调整注聚剖面 阴阳离子聚合物 注聚区 封窜 聚合物驱 采油技术 |
| 文章编号： | 1002-4026(2003)02-0045-04 |
| 修稿时间： | 2003年3月10日 |
The use of cationic polymer for plugging channellings and controling permeability of polymer-flooding reservoirs |
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| WANG Hai-ying LI Ji-yong TANG Gong-xun.The use of cationic polymer for plugging channellings and controling permeability of polymer-flooding reservoirs[J].Shandong Science,2003,16(2):45-48. | |
| Authors: | WANG Hai-ying LI Ji-yong TANG Gong-xun |
| Abstract: | At polymer-flooding reservoirs of Gudong, Shenli, early polymer emerge in a lot of production wells is observed with polymer concentration in the produced water as high as 800-1000mg/L. Based on the property of cationic and anionic polymers in aqueous solution to form gel, a cationic polymer NCP ( a cationic modified starch), is select ed to be injected into production or injection wells where it reacts with the flooding polymer HPAM adsorbed and trapped in reservoirs and create s precipitates for the aim of plugging polymer channeling and of controlling reservoir permeability. |
| Keywords: | cationic polymer cationic modified starch controlling reservoir permeability cationic/anionic polymer interaction Gudong oilfields in Shenli |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |
