Patent ID: 11970655
Assignee: CHINA UNIVERSITY OF PETROLEUM (EAST CHINA)
Field: Basic materials chemistry (Chemistry)
Classification: CPC C  E  Y | IPC C  E

Claim 4:
5. The plugging agent of claim 1, wherein the emulsifier is one or more selected from the group consisting of sodium dodecyl benzenesulfonate, sodium dodecyl sulfate, dodecylphenlo polyoxyethylene ether, and polysorbate-80;
the water-soluble temperature-resistant monomer is one or more selected from the group consisting of methyl acrylic acid, acrylic acid, 2-acrylamide-2-methylpropanesulfonic acid, sodium vinyl sulfonate, sodium styrene sulfonate, N-vinylpyrrolidone, acrylonitrile and N,N-dimethylacrylamide;
the oil-soluble temperature-resistant monomer is one or more selected from the group consisting of styrene, methyl methacrylate, methyl acrylate, ethyl methacrylate, ethyl acrylate, butyl methacrylate, butyl acrylate, isooctyl methacrylate, isooctyl acrylate, glycidyl methacrylate, octadecyl methacrylate and lauryl methacrylate;
the modified nano-silica is one or more selected from the group consisting of vinyltriethoxysilane-modified nano-silica and bis-[γ-(triethoxysilyl)propyl]tetrasulfide-modified nano-silica.