耐高温凝胶调剖剂的耐温及稳定性研究  

Study on Temperature Resistance and Stability of High Temperature Resistant Gel Profile Control Agent

作　　者：黎慧 刘长龙 肖丽华 陈丹丰 薛宝庆 吕金龙 王承州 郑旭林 LI Hui;LIU Chang-long;CHEN Dan-feng;XUE Bao-qing;LYU Jin-long;WANG Cheng-zhou;ZHENG Xv-lin(CNO0C(China)Co.,Ltd.Tianjin Branch,Tianjin 300450,China;Key Laboratory of EOR,Northeast Petroleum University,Daqing Heilongjiang 163318,China)

机构地区：[1]中海石油(中国)有限公司天津分公司,天津300450 [2]东北石油大学提高采收率重点实验室,黑龙江大庆163318

出　　处：《当代化工》2023年第4期787-793,共7页Contemporary Chemical Industry

基　　金：十三五国家重大专项,渤海双高油田多级窜逸堵/调/驱一体化技术研究与示范(项目编号:ZX05058003-010)。

摘　　要：目前渤海油田相对高温油田较多,随着水驱开发深入,含水上升速度加快,平面、纵向矛盾日益突出。目前油田作业公司稳油控水技术方面欠缺耐高温的凝胶调剖体系,尤其是在线调剖体系,无技术积淀。为解决这一问题,对耐高温聚合物进行了筛选,从不同聚合物、交联剂以及助剂之间的复配方面着手,探索影响高温成胶及热稳定性的各种因素,完成聚合物质量分数、交联剂质量分数以及助剂优选,另采用Sydansk凝胶代码法明确体系的成胶强度及成胶时间。优选得出3种凝胶配方体系,体系一:0.2%~1.0%AS+0.1%~0.5%A1+0.1%~0.5%B1+0.6%~1.8%络合剂1+0.5%除氧剂;体系二:0.2%~1.0%AS+0.1%~0.5%A1+0.1%~0.5%B1+0.3%填充剂+0.5%辅助交联剂;体系三:0.2%~1.0%AS+0.1%~0.5%A1+0.1%~0.5%B1+0.6%~1.8%络合剂2+0.5%除氧剂。At present,there are many relatively high-temperature oilfields in Bohai oilfield.With the deepening of water drive development,the rising rate of water cut is accelerated,and the plane and vertical contradictions are becoming increasingly prominent.At present,there is no high temperature gel profile control system in oilfield operation company,especially on-line profile control system,without technical accumulation.In order to solve this problem,high temperature resistant polymers were screened,and various factors affecting high temperature gelation and thermal stability were explored from the combination of different polymers,crosslinking agents and additives.The mass fraction of polymer,the mass fraction of crosslinking agent and the assistant were optimized,and the gel strength and gelation time of the system were determined by Sydansk gel code.Three gel formulations were selected,SystemⅠ:0.2%~1.0%AS+0.1%~0.5%A1+0.1%~0.5%B1+0.6%~1.8%complexing agent1+0.5%deaerator;SystemⅡ:0.2%~1.0%AS+0.1%~0.5%A1+0.1%~0.5%B1+0.3%filler+0.5%auxiliary crosslinking agent;SystemⅢ:0.2%~1.0%AS+0.1%~0.5%A1+0.1%~0.5%B1+0.6%~1.8%complexing agent 2+0.5%deaerator.

关 键 词：耐高温凝胶 调剖体系 热稳定性 高温油田 

分 类 号：TE357[石油与天然气工程—油气田开发工程]