调驱剂交替注入方式对调驱增油降水效果影响实验研究  

Study on the Effect of Increasing Oil and Decreasing Water Cut by Alternate Injection Mode of Profiling/Flooding Agent

作　　者：张楠[1] 葛嵩 李彦阅 夏欢 薛宝庆 王楠 ZHANG Nan;GE Song;LI Yan-yue;XIA Huan;XUE Bao-qin;WANG Nan(Key Laboratory of Enhanced Oil Recovery of Education Ministry, Northeast Petroleum University,Heilongjiang Daqing 163318, China;CNOOC Zhanjiang Branch, Guangdong Zhanjiang 524057, China;Bohai Oilfield Research Institute of China National Offshore Oilfield Corporation Limited-Tianjin, Tianjin 300452, China)

机构地区：[1]东北石油大学教育部提高油气采收率重点实验室,黑龙江大庆163318 [2]中海石油(中国)有限公司湛江分公司,广东湛江524057 [3]中海石油(中国)有限公司天津分公司渤海石油研究院,天津300452

出　　处：《当代化工》2019年第8期1668-1670,1674,共4页Contemporary Chemical Industry

基　　金：国家“十三五”科技重大专项子课题“渤海油田高含水水平井自控水选择性堵水技术研究与示范”(2016ZX05058003-021);“渤海双高油田多级窜逸堵调驱一体化技术研究及示范”(2016ZX05058-003-010);“抗盐型聚合物油藏适应性及其改进方法基础研究”(51574086)经费资助

摘　　要：调驱剂交替注入可以使调驱剂进入油藏深部,实现深度调剖,同时又可以避免对中低渗层的损害,其研究和应用受到广泛重视。针对渤海油田现场油田堵水技术需求,以油藏工程为理论基础,利用各项仪器设备,建立物理模型,开展调驱剂不同注入方式对调驱效果影响的实验研究。综合分析得知,在交联剂和聚合物类型相同的情况下,聚合物凝胶分子线团尺寸随药剂浓度增加而增大,聚合物类型相同时,交联剂3所配制的线团尺寸最大;"强化调剖段塞+弱凝胶+微界面溶液"交替注入既扩大了波及体积,又提高了洗油效率,使得增油降水效果更加明显。Alternating injection of profiling/flooding agent can not only make it enter the depth of reservoir to realize depth profile control, but also avoid damaging to the middle and low permeability reservoir. So its research and application have received extensive attention. To meet the technical requirements of water shutoff in Bohai oilfield,taking reservoir engineering as the theoretical basis, various instruments and equipments were used to establish physical models to carry out experimental research on the effect of injection way of profiling/flooding agent on profile control and oil displacement. The results showed that the size of the polymer gel molecular cluster increased with the concentration of the drug when the cross-linking agent and the polymer type were the same. The size of polymer molecular cluster in the gel prepared by crosslinking agent 3 was the largest. The alternate injection of "enhanced profile control slug + weak gel + microinterfacial solution" not only expanded the sweep volume, but also improved the oil washing efficiency, which made the effect of increasing oil and decreasing water cut more obvious.

关 键 词：渤海油藏 交替注入 增油降水 物理模拟 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程]