Crude oil dehydrating device combining electric field and centrifugal field

Abstract

The invention relates to a crude oil dehydrating device combing an electric field and a centrifugal field, which consists of a shell, an electric field and centrifugal field integral structure, a motor, a pulley, a triangle leather belt, a dehydrating power supply device, an oil tank and a sewage tank. A centrifugal field structure consists of a hollow shaft, a liquid inlet pipe, a water outlet pipe, an oil outlet pipe, a sealed taper centrifugal cavity, an oil collector, a liquid distributor, a water collector, and sealing joints of the water outlet pipe, the oil outlet pipe and the liquid inlet pipe, wherein the hollow shaft is arranged in the vertical center of the shell; the liquid inlet pipe, the water outlet pipe and the oil outlet pipe are arranged in the hollow shaft; the sealed taper centrifugal cavity is arranged in the middle of the hollow shaft; the oil collector is arranged on the upper part in the hollow shaft; the liquid distributor is arranged in the middle of the hollow shaft; the water collector is arranged on the lower part of the hollow shaft; and the sealing joints are arranged on the upper part of the hollow shaft and do not rotate. An electric field structureconsists of a disk-shaped electrode plate, the other disk-shaped electrode plate, moving electrodes and fixed electrodes, wherein the disk-shaped electrode plate is arranged between the oil collectorand the liquid distributor; the other disk-shaped electrode plate is arranged on the centrifugal cavity and staggered with the electrode plate of the hollow shaft; the moving electrodes are arrangedat both ends of the hollow shaft; and the fixed electrodes are arranged at the upper end and the lower end of the shell and correspondingly and movably contact the moving electrodes. The upper fixed electrode and the lower fixed electrode are connected with the dehydrating power supply device; and a motor pulley is connected with the pulley on the lower part of the hollow shaft through the.

Description

1. Technical field [0001] The invention relates to a method for dehydrating crude oil of mine emulsion, in particular to a crude oil dehydrating device combining an electric field and a centrifugal field. 2. Background technology [0002] Most of my country's oil regions have entered the stage of medium and high water-cut exploitation, especially in most of the eastern oilfields, the water cut is as high as 80% or more, and some even reach 90% or more. In order to increase oil production and reduce water loss, various new oil recovery technologies have been researched and developed, such as acid fracturing, water plugging and profile control, tertiary oil recovery, microbial oil flooding, etc. The tertiary oil recovery technology has become one of the main means of stabilizing and increasing production in old oilfields, greatly improving the oil recovery rate. Daqing and Shengli Oilfields successively carried out composite flooding tests and polymer flooding pilot tests, an...

AI Technical Summary

Problems solved by technology

However, the dehydration process is the same as the original AC, DC, and AC-DC double electric field dehydration process. The process is more complicated, the area is large, the investment is large, and the management is inconvenient, which restricts the popularization and application of high-frequency pulse electric field dehydration technology.

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