首页>
外国专利>
Method for synthesising a nanoparticulate system of polyelectrolytes with opposite charges and use for the treatment of geological formations
Method for synthesising a nanoparticulate system of polyelectrolytes with opposite charges and use for the treatment of geological formations
展开▼
机译:带有相反电荷的聚电解质纳米微粒体系的合成方法及其在地质构造中的应用
展开▼
页面导航
摘要
著录项
相似文献
摘要
Synthesizing a nanoparticulate system of polyelectrolyte complex with opposite charges in an organic phase comprises mixing a first calibrated water-in-oil emulsion comprising a continuous organic phase, a liposoluble surfactant and a disperse aqueous phase containing a mixture of two oppositely charged polyelectrolytes such as anionic and cationic polymers, at a high or low pH, and a second water-in-oil emulsion comprising an acidic or basic aqueous phase, dispersed in the continuous organic phase and the liposoluble surfactant. Synthesizing a nanoparticulate system of polyelectrolyte complex with opposite charges in an organic phase comprises mixing a first calibrated water-in-oil emulsion comprising a continuous organic phase, a liposoluble surfactant and a disperse aqueous phase containing a mixture of two oppositely charged polyelectrolytes such as anionic and cationic polymers, at a high or low pH, and a second water-in-oil emulsion comprising an acidic or basic aqueous phase, dispersed in the continuous organic phase and the liposoluble surfactant, where the polyelectrolytes are optionally lightly charged and have a pH-dependent ionization rates, and if the aqueous phase is acidic, then the polyelectrolyte is a cationic polymer, and if the aqueous phase is basic, then the polyelectrolyte is an anionic polymer. An independent claim is included for treating a porous and permeable geological formation comprising preparing a composition comprising the nanoparticulate system of polycation/polyanion complex obtained by mixing the first calibrated emulsion and the second emulsion, and injecting the composition into the porous and permeable formation in which water, oil and/or gas flow.
展开▼