摘要
低临界溶解温度(LCST)型温度敏感聚合物是指聚合物链在相转变温度前呈伸展溶解态、相转变温度后为收缩聚集态的温度敏感型聚合物,其在环境温度变化刺激下能智能且可逆响应,已在有机化工、材料科学、生物医学和石油天然气工业等领域得到了广泛研究。该文对不同空间构象的LCST型温度敏感聚合物进行了分类,重点介绍了线形结构、温敏水凝胶、嵌段结构、接枝复合结构和特殊结构的LCST型温度敏感聚合物的研究进展;总结了不同空间构象的LCST型温度敏感聚合物在低温流变调控、温敏智能封堵、增黏提切和防漏堵漏钻井液领域的应用现状,提出了LCST型温度敏感聚合物存在的关键问题及其在钻井液领域的应用前景。
Low critical solvation temperature(LCST)temperature-sensitive polymers are temperaturesensitive polymers whose chains present a stretch solution state before the phase transition temperature and a shrink aggregation state after the phase transition temperature.With intelligent and reversible response to ambient temperature change,LCST have been widely studied in the fields of organic chemistry,materials science,biomedicine,and oil and gas industry.In this review,LCST-type temperature-sensitive polymers with different spatial conformations were categorized,with a focus on the research progress on LCST-type temperature-sensitive polymers with linear structures,temperature-sensitive hydrogels,block structures,grafted composite structures and special structures.The application status quo of LCST-type temperature-sensitive polymers with different spatial conformations in drilling fluids,such as lowtemperature rheology control,temperature-sensitive intelligent plugging,viscosity enhancement and cutting,and leakage prevention and plugging,were summarized.Finally,the key problems of LCST-type temperature-sensitive polymers and their application prospects in the field of drilling fluids were discussed.
作者
王中义
孙金声
黄贤斌
吕开河
WANG Zhongyi;SUN Jinsheng;HUANG Xianbin;LYU Kaihe(School of Petroleum Engineering,China University of Petroleum,Qingdao 266580,Shandong,China;China National Petroleum Corporation Engineering Technology&Research Institute Co,Ltd.,Beijing 102200,China;Key Laboratory of Unconventional Oil and Gas Development,Ministry of Education,China University of Petroleum,Qingdao 266580,Shandong,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2024年第10期2103-2119,共17页
Fine Chemicals
基金
国家自然科学基金重大项目(51991361)
国家自然科学基金项目(52374024)
中石油科学研究与技术开发项目(2022ZG06)。
关键词
温度敏感聚合物
钻井液
低温流变调控
智能封堵
增黏提切
防漏堵漏
temperature-sensitive polymers
drilling fluids
low-temperature rheology control
intelligent plugging
viscosity enhancement and cutting
leak prevention and plugging
