Method for removing solids and water from petroleum crudes

Details Method for removing solids and water from petroleum crudes Method for removing solids and water from petroleum crudes

C - Chemistry, Metallurgy

10

G

196/206

C10G 33/04 (2006.01)

Patent

CA 1207698

ABSTRACT OF THE DISCLOSURE Particulate solids and water are removed from petroleum crude to bring the BS&W content of the crude within pipeline specifications by treating a blended and dewatered crude to destabilize the water-in-oil emulsion of the crude and providing in uniform distribution through the treated crude both produced water and an acid-reacting coagulating agent while maintaining the crude at a pH of at least 8, then maintaining the resulting treated crude at 52-88°C. for at least a few minutes, separating the treated crude into at least an oil phase and a water phase, and recovering the oil phase as a clean blended crude oil having a BS&W content within pipeline specifications and in a yield significantly greater than that which can be recovered without use of produced water and coagulating agent.

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