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POLYMER-MONODISPERSED NANO-MICROSPHERES FOR DEEP PROFILE CONTROL AND FLOODING, AND PREPARATION METHOD THEREOF
POLYMER-MONODISPERSED NANO-MICROSPHERES FOR DEEP PROFILE CONTROL AND FLOODING, AND PREPARATION METHOD THEREOF
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机译:用于深型材控制和泛洪的聚合物 - 单分散的纳米微球,及其制备方法
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摘要
A polymer-monodispersed nano-microspheres for deep profile control and flooding. The polymer-monodispersed nano-microspheres comprise (% wt.): 0.05˜2.5% of macromolecules A, 0.05˜2.5% of macromolecules B, 0.002˜0.05% of oxygen scavenger, and mineralized water. Macromolecules A are of a straight-chain water-soluble polymer with an ethyl ether or propyl ether structure. Macromolecules B are of a water-soluble polymer with a hydroxyl or polyphenolic structure. Macromolecules A and macromolecules B are intermolecularly assembled under the drive of extremely strong hydrogen bonds in aqueous solutions to rapidly construct monodispersed nano-microsphere dispersion glue with a controllable size. The monodispersed nano-microspheres have a good seepage in a porous medium and excellent deep profile control and flooding capabilities.
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