PREPARATION,IDENTIFICATION AND INTERFACIAL ACTIVITIES OF PETROLEUM CARBOXYLATE AS SURFACTANT FOR CHEMICAL FLOODING |
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摘 要: | Petroleum carboxylate that may be suitable for tertiary oil recovery have been producedinexpensively from the fractions of Daqing crude oil by a two step process.The feed stock was firstoxidized in the vapor phase,followed by reaction of the oxidized products with sodiumhydroxide.Dilute solutions of sodium carboxylates were produced and showultralow(10~(-2)mN/m)interfacial tensions(IFTs)against a variety of hydrocarbons with a widerange of ACN(Alkane Carbon Number).Infrared spectroscopy was used to identify the functionalgroups in the oxidized and the saponified products.
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