新型耐高温冻胶堵剂的制备与性能评价  

Preparation and performance evaluation of a new high temperature resistant gel-typed plugging agent

作　　者：周飞 ZHOU Fei(Petrochemical Technology Service Company of Liaohe Petroleum Exploration Bureau Co.,Ltd.,PetroChina,Panjin 124010,Liaoning,China)

机构地区：[1]中国石油辽河石油勘探局有限公司石油化工技术服务分公司,辽宁盘锦124010

出　　处：《石油地质与工程》2023年第4期90-92,99,共4页Petroleum Geology and Engineering

摘　　要：针对现今冻胶型堵剂在较高温度和矿化度条件下稳定性较差等缺点,研究出了一种新型冻胶型堵剂,在120℃下,1.5%聚合物A+1.20%交联剂1.20%(C-3)+2.00%缓凝剂(H)+0.02%除氧剂(CY)+0.02%稳定剂(YDC),pH值为9,堵剂初凝时间为7 h,终凝时间为8 h,终凝强度为H~I。新型冻胶型堵剂耐高温、岩性适应能力强、抗盐性和抗剪切能力强,且连续在高温条件下的稳定性、封堵性较好。A new gel-typed plugging agent is developed to overcome the disadvantages of the current one,such as poor stability under high temperature and salinity conditions.At 120℃,the new formula is 1.5%polymer A+1.20%cross-linking agent 1.20%(C-3)+2.0%retarder(H)+0.02%deoxidizer(CY)+0.02%stabilizer(YDC),the pH value is 9,the initial setting time of the plugging agent is 7 h,the final setting time is 8 h,and final setting strength is H~I.The new agent has high temperature resistance,strong adaptability to lithology,strong salt resistance and shear resistance,and has good stability and plugging performance under continuous high temperature conditions.

关 键 词：冻胶型堵剂 耐高温 抗盐能力 稳定性 

分 类 号：TE39[石油与天然气工程—油气田开发工程]