Zaydoon Kh. Kuraimid - Petroleum Research and Development Center (PRDC)-Ministry of oil, Iraq

De-emulsifiers are one of the important industrial additives used commonly in petroleum industry in order to separate the salt water from crude oil essential the wet crude oil fields in south oil company (B.O.C) in Iraqi fields. De-emulsifiers activities due to the ability of these additives for breaking the thin film between dispersed phase and continuous phase globules in order to obtain two immiscible phase via the adsorption mechanism of the surfactants. In the present study has prepared local demulsifies by synthesis Gemini surfactants bis (Quaternary ammonium salt). The local de-emulsifier was assess in the laboratories of South Oil Company (B.O.C) Comparison with the results of commercial de-emulsifier (A), where the local material efficiency was higher than the important commercial (A) adopted in the B.O.C by bottle Test and later was produced (۲۶) barrels of material prepared and evaluated in AL-SHAMIA Degassing station in Iraqi South Rumaila in (B.O.C). Where, evaluated the local de-emulsifier in the fields and show the positive results, this describes the evaluation of field emulsifying the local material in this study with lost cost of preparation of a one barrel about ۵۰۰ in the time that the cost of one barrel of commercial de-emulsifier is ۱۰۰۰. The assessment was in the conditions of commercial de-emulsifier, depending on the natural of Dehydrator and Desalter in addition of the effective Dose is ۲۵ppm and by ۱۰۰% separation efficiency in same fresh oil source. The efficiency of local de-emulsifier studied Varity of parameters like: Temperature and the time required to separation function of the Dose. The field evaluation conditions of local de-emulsifier were under control outside of the oils (fresh) of D۲ (Desalter) of isolation units to examine all of the water and salt content of crude oil. This was prepared for export according to the approved evaluation criteria compared with the commercial de-emulsifier imported and used in the oil sector.

Demulsifiers, water-in-oil emulsions, demulsification