Research and Application of Oilfield Aging Oil Treatment Process
With the rolling development of offshore oilfield groups,the aging oil of an onshore oil terminal in the western South China Sea has gradually increased.The aging oil not only occupies a large amount of tank capacity,but also affects the product quality of crude oil transportation and sales.Aiming at the characteristics of aging oil with high water content,high emulsification degree and high mechanical impurity content,the adaptability of the process flow was reformed by adding a set of butterfly centrifuge and using the existing equipment and facilities according to local conditions,and the three-stage treatment process of centrifuge centrifugal separation pre-dehydration,accident tank thermochemical sedimentation re-dehydration and crude oil stabilization tower high temperature distillation fine dehydration is adopted.Through this treatment process,a total of 30 000 m3 of aging oil has been treated,the water content of crude oil after treatment is no higher than 0.5%,which meets the standard of crude oil transportation and sales,and the application effect is good.
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