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The commonly used nonionic demulsifiers in oil fields are mainly as follows: 1. SP type demulsifier The main component of SP-type demulsifier is polyoxyethylene polyoxypropylene octadecyl alcohol ether, with the theoretical structural formula R(PO)x(EO)y(PO)zH, where: EO – polyoxyethylene; PO –…
Demulsifiers are surfactants that break down emulsions. They primarily disrupt emulsions by partially replacing the stabilizing film. As dehydrating agents, they remove water from crude oil and heavy oil, achieving the required water content. In oil wells, they reduce crude…
I. Overview Experiments were conducted on oil samples from the Xi61 block of the Hailar oilfield, specifically samples from the Bei16-Ho53-47 and Bei16-Ho55-47 oilfields. 100 mL of the field sample was added to an LD-JN pump for bottle testing. A…