钻井液与完井液2024，Vol.41Issue(6)：736-741,6.DOI:10.12358/j.issn.1001-5620.2024.06.005
聚合物纳米复合增黏剂的制备
Preparation and Performance Evaluation of Polymer Nanocomposite Viscosifier
摘要
Abstract
In response to conventional viscosifiers exhibiting poor performance under high temperature and high salt conditions rendering them ineffective for high-temperature deep reservoirs,this study prepared a novel nanocomposite(E-APNC)via in situ polymerization using 2-acrylamido-2-methylpropanesulfonic acid,N,N diethylacrylamide,N,N methylenebisacrylamide and nano-SiO2 particles(E-np)as raw materials.E-APNC synthetic condition was optimized by orthogonal experimentation,and the molecular structure of E-APNC was evidenced by FT-IR,E-APNC polymer fluid displayed good thickening performance at high temperatures with excellent rheological parameter such as viscosity increase,shear resistance,thermal stability,and salt tolerance.Through the 24 h static experiment,E-np has better dispersibility compared with nps and N-np.At 1%E-APNC,the apparent viscosity at room temperature reached 66 mPa·s,whereas the viscosity shear rate reached 60 mPa·s at high shear rate of 1021 s-1,showcasing the excellent viscosity increasing ability and good anti-shear performance of E-APNC.The apparent viscosity retention rate of the drilling fluid was 65%after aging at 200℃for 16 h under 20%NaCl concentration probing its good temperature and salt resistance performance.Compared with polymer APNC and N-APNC,E-APNC showed strong shear resistance and good temperature resistance,salt resistance.关键词
复合材料/SiO2改性/增黏性能/耐温抗盐Key words
Composite material/SiO2 modification/Viscosifier/Temperature and salt tolerant分类
能源科技引用本文复制引用
宋祥先,王本利,仇恒彬,慕熙荣,谢彬强..聚合物纳米复合增黏剂的制备[J].钻井液与完井液,2024,41(6):736-741,6.基金项目
长江大学·非常规油气省部共建协同创新中心开放基金资助项目"页岩地层用温敏缔合型封堵剂研制及其机理研究"(UOG2024-11). （UOG2024-11）
