摘要
纳米材料技术发展迅速,已成为油气井固井工程领域研究和应用的热点。文章论述了固井领域常用的无机纳米材料、有机纳米颗粒、聚合物/无机纳米复合材料的研究和应用进展。其中,纳米硅、纳米沸石粉、埃洛石纳米管、纳米碳酸钙、纳米黏土、纳米氧化镁、纳米氧化铝、碳纳米管/碳纳米纤维、石墨烯等功能材料在油井水泥石力学性能改进方面的效果显著,但由于纳米材料难分散问题而限制了其规模应用;聚合物胶乳、纳米乳液等有机纳米颗粒可明显改善水泥浆防窜性能、前置液洗油效果和冲洗效率等,对保障固井施工安全和固井质量发挥了重要作用;聚合物纳米复合材料改性技术在聚合物类固井外加剂耐温能力提升和综合性能改善等方面的研究较为深入,其综合性能较传统聚合物大大提高。针对复杂深层及非常规油气井固井重大工程技术难点,从纳米表面接枝改性和纳米插层复合技术两方面提出了聚合物纳米复合材料类固井外加剂的研发建议,对抗超高温高性能固井关键外加剂的研发具有重要的指导作用。
The nanomaterial technology with rapid development has become a hot research and application topic in the field of oil and gas well cementing engineering.This article discussed the research and application progress of commonly used nanomaterials and polymer nanocomposites in the field of well cementing.Among them,nanoscale functional materials including silicon dioxide,zeolite powder,halloysite nanotubes,calcium carbonate,clay,magnesium oxide,alumina,carbon nanotubes/carbon nanofibers and grapheme had significant effects on improving the mechanical properties of set cement.However,their application was limited due to the dispersion difficulty of nanomaterials.Polymer latex,nanoemulsion and other organic nanoparticles could significantly improve the channeling prevention performance of cement slurry,the oil washing effect and flushing efficiency of preflush,and play an important role in ensuring the safety and quality of cementing.The modification technology of polymer nanocomposites was extensively studied in terms of improving the temperature resistance and comprehensive performance of polymer cementing additives.Its comprehensive performance was greatly improved compared to that of traditional polymers.In view of the major technical difficulties in complex deep and unconventional oil and gas well cementing,the research and development suggestions of polymer nano-composite cementing admixture were put forward from the two aspects,such as nano-surface grafting modification and nano-intercalation composite technology,which played an important guiding role in the research and development of key cementing additives with ultra-high temperature resistance and high performance.
作者
夏修建
于永金
齐奉忠
李长坤
徐璞
刘慧婷
XIA Xiujian;YU Yongjin;QI Fengzhong;LI Changkun;XU Pu;LIU Huiting(CNPC Engineering and Technology R&D Company Limited,Beijing 102206,P R of China;National Engineering Research Center of Oil&Gas Drilling and Completion Technology,Beijing 102206,P R of China;Zhundong Drilling Company of CNPC Xibu Drilling Engineering Company Limited,Karamay,Xinjiang 834000,P R of China)
出处
《油田化学》
CAS
CSCD
北大核心
2024年第4期725-737,共13页
Oilfield Chemistry
基金
国家自然科学基金基础科学中心项目“超深特深层油气钻采流动调控”(项目编号52288101)
中国石油天然气股份有限公司科学研究与技术开发项目“超深特深层油气钻完井井筒工作液流动调控研究”(项目编号2023DQ0529)。
关键词
纳米材料
纳米复合材料
聚合物改性
固井
油气井
综述
nanomaterial
nanocomposite
polymer modification
cementing
oil and gas well
review
