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.
作者
周飞
ZHOU Fei(Petrochemical Technology Service Company of Liaohe Petroleum Exploration Bureau Co.,Ltd.,PetroChina,Panjin 124010,Liaoning,China)
出处
《石油地质与工程》
CAS
2023年第4期90-92,99,共4页
Petroleum Geology and Engineering
关键词
冻胶型堵剂
耐高温
抗盐能力
稳定性
gel-typed plugging agent
high temperature resistance
salt resistance
stability