自转向酸液在海上油田的应用  

Application of Self-Steering Acid in Offshore Oil Field

作　　者：詹宁宁 张丽锋 ZHAN Ning-ning;ZHANG Li-feng(CNOOC CenerTech-Drilling&Production Co.,Ltd,Tianjin 300450,China;CNOOC Tianjin Chemical Research&Design Institute Co.,Ltd.,Tianjin 300131,China;School of Chemical Engineering&Technology,Tianjin University,Tianjin 300072,China)

机构地区：[1]中海油能源发展股份有限公司工程技术分公司,天津300450 [2]中海油天津化工研究设计院有限公司,天津300131 [3]天津大学化工学院,天津300072

出　　处：《当代化工》2022年第3期603-606,共4页Contemporary Chemical Industry

基　　金：中国博士后科学基金项目(项目编号:2019M661034);中国海洋石油集团有限公司科研项目(项目编号:CNOOC-KJ145FZDXM00TJY001TJY2021)资助。

摘　　要：根据海上油田储层非均质性强、渗透率极差较大、后期频繁作业造成的储层污染等特点优选出适合海上作业的均匀酸化改造工艺技术即新型酸化自转向技术,并对其性能进行室内评价。结果表明:VWN抗温性能好,转向能力强,可以暂堵高渗透岩心,有效地改造低渗透岩心,因此,前置转向酸+主体酸的自转向酸液体系可以有效地运用于海上油田的酸化改造。According to the shortcoming of severe heterogeneity, low permeability, low natural productivity and vulnerable to external fluid pollution of offshore oilfield reservoirs, a new acidification self-diverting technology for homogeneous acidification transformationwas suggested, and its performancewas evaluated. The result confirmed its good performance in resistance to temperature and diverting, temporarily blocking the high permeability core, and effectively improving low permeability core. Thus, the self-diverting acid system can be effectively applied to the acidification of offshore oilfield.

关 键 词：自转向酸化技术 酸化自转向剂 渗透率 模拟岩心实验 

分 类 号：TE65[石油与天然气工程—油气加工工程]