Cationic polymer drilling fluid (CPDF) is a new water base drilling fluid in which high molecular weight (HMW) cationic polymer (CPAM) is an encapsulating and flocculating agent and organic quaternary ammonium compoun...Cationic polymer drilling fluid (CPDF) is a new water base drilling fluid in which high molecular weight (HMW) cationic polymer (CPAM) is an encapsulating and flocculating agent and organic quaternary ammonium compound (NW-1) acts as shale inhibitor. This paper describes the experimental results of cuttings recovery, particle size distribution layer spacing and Zeta potential, and discusses the inhibition of CPDF system and its major additives. The advantages of CPDF will be proved by its application in well LX-2.展开更多
CONSPECTUS:Macrocycles play pivotal roles in supramolecular chemistry and materials science because of their distinctive molecular recognition capabilities and versatile applications in selfassembly.However,traditiona...CONSPECTUS:Macrocycles play pivotal roles in supramolecular chemistry and materials science because of their distinctive molecular recognition capabilities and versatile applications in selfassembly.However,traditional macrocycles,such as cyclodextrins,calixarenes,cucurbiturils,and pillararenes,have inherent limitations in terms of cavity size and structural variety,which restrict their ability to encapsulate vip molecules of varying sizes and their potential in constructing multifunctional materials.展开更多
文摘Cationic polymer drilling fluid (CPDF) is a new water base drilling fluid in which high molecular weight (HMW) cationic polymer (CPAM) is an encapsulating and flocculating agent and organic quaternary ammonium compound (NW-1) acts as shale inhibitor. This paper describes the experimental results of cuttings recovery, particle size distribution layer spacing and Zeta potential, and discusses the inhibition of CPDF system and its major additives. The advantages of CPDF will be proved by its application in well LX-2.
基金supported by the National Natural Science Foundation of China(22471195,22201212)Natural Science Foundation of Tianjin City(23JCZDJC00660).
文摘CONSPECTUS:Macrocycles play pivotal roles in supramolecular chemistry and materials science because of their distinctive molecular recognition capabilities and versatile applications in selfassembly.However,traditional macrocycles,such as cyclodextrins,calixarenes,cucurbiturils,and pillararenes,have inherent limitations in terms of cavity size and structural variety,which restrict their ability to encapsulate vip molecules of varying sizes and their potential in constructing multifunctional materials.
