Aging oil dehydration device and method

Abstract

The invention discloses an aging oil dehydration device and method. The aging oil dehydration device comprises a shell body, an inner cavity is divided into a heating demulsification area, a settlingdehydration area, a selected up-to-standard area and an external discharge oil area communicated with the selected up-to-standard area through an overflow port, wherein the upper portions of the heating demulsification area, settling dehydration area, selected up-to-standard area and external discharge oil area are communicated in sequence; the heating demulsification area is internally provided with a first heat conduction oil tube connected with a heat conduction oil furnace, the top of the heating demulsification area is provided with an aging oil inlet and a steam outlet, and the bottom ofthe heating demulsification area is provided with a first oil outlet; the settling dehydration area is internally provided with a steam delivery pipeline, the side wall of the lower portion of the settling dehydration area is provided with an oil inlet communicated with the first oil outlet, and a partition plate where the side wall of the settling dehydration area is located is provided with a second oil outlet communicated with the selected up-to-standard area; an inlet of the steam delivery pipeline is communicated with a steam outlet, and an outlet of the steam delivery pipeline is connected with a drainage pipeline; the selected up-to-standard area is internally provided with a second heat conduction oil tube connected with the heat conduction oil furnace; and the bottom of the external discharge oil area is provided with a cleaned oil outlet. The aging oil dehydration device has the advantages that the moisture content of the aging oil is reduced to less than 5%, the device is safe and environmentally-friendly, the cost is low, and the use is convenient.

Description

technical field [0001] The invention relates to the field of petroleum processing, in particular to an aging oil dehydration device and method. Background technique [0002] After the crude oil extraction in the oilfield enters the middle and later stages, the water content in the produced fluid gradually increases, and the crude oil output gradually decreases. In order to improve oil recovery and ensure crude oil production, various chemical oil displacement agents are usually added to oil wells. Chemical oil displacement agents can easily age crude oil while improving oil recovery and ensuring crude oil production, even if the formation of crude oil is stable. Emulsions that are not easily broken (i.e. aged oils). When dehydrating the crude oil extracted from the oil field, the aging oil is easy to deposit in the dehydration equipment such as the settling tank and the electric dehydrator, which reduces the utilization rate of the crude oil dehydration equipment, and the m...

AI Technical Summary

Problems solved by technology

[0006] After the aging oil is dehydrated by the aging oil dehydration treatment device provided by the prior art, the water content of the aging oil still cannot meet the use requirement that the water content of the crude oil is less than 0.5%.

Images