In order to study the effects of oil displacement by a foam system of ultralow interfacial tension. the interfacial activities and foam properties of a nonionic copyright surfactant (DWS) were investigated under Daqing Oilfield reservoir conditions. Injection methods and alternate cycle of the foam system were discussed here on the basis of results from core flow experiments. It was o... https://thegreensjunglebeautyshops.shop/product-category/body-brush/