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High-frequency electric collective oil-gas-water three-phase flow separator

A technology of oil-gas-water and three-phase flow, which is applied in the field of dehydration treatment of crude oil with high water content, aged oil and crude oil containing high polymer and demulsifier. Effect

Inactive Publication Date: 2014-04-02
CHINA UNIV OF PETROLEUM (EAST CHINA) +1
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  • Abstract
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Problems solved by technology

[0003] In order to solve the difficult problem of dehydration of crude oil with high water content, aging oil and crude oil containing high polymer and demulsifier, the purpose of this invention is to provide a high-frequency electric coalescence oil-gas-water three-phase flow separator

Method used

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Embodiment Construction

[0018] The present invention will be described in further detail below in conjunction with the drawings.

[0019] The invention is a high-frequency electric coalescing three-phase flow separator for oil, gas and water. The material used in the tank body of the separator should meet the relevant national standards. The pressure component steel in the separator adopts killed steel smelted in an electric furnace or an oxygen converter. After the equipment tank body is processed and produced, its heat treatment state must be strictly controlled to meet the relevant standards and non-destructive testing shall be performed. The internal and external walls of the equipment should be treated with anti-corrosion, and the tank body adopts RLHY-12 / 150 thermal insulation coating.

[0020] Such as Figure 1 to Figure 5 As shown, the high-frequency electric coalescing oil-gas-water three-phase flow separator of the present invention includes a horizontal tank 1 and a high-frequency rectangular ...

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Abstract

The invention provides a high-frequency electric collective oil-gas-water three-phase flow separator. The separator is composed of a horizontal tank body 1 and a high-frequency rectangular wave crude oil dehydration power supply 10, wherein the horizontal tank body 1 is divided into a primary separation chamber 25, a horizontal settling chamber 26, an electric dehydration chamber 27 and an oil and water storage chamber 28; sand cleaning devices 19, 20 and 21 are arranged at the bottom of the separator; a drain outlet 17 and a water outlet 16 are formed at the bottom of the electric dehydration chamber; and an oil outlet 15 and a water outlet 29 are respectively formed at the bottom of the oil and water storage chamber. The separator disclosed by the invention avoids the 'reserved electric field' phenomenon in the operation of a conventional electric dehydrator, and overcomes the shortcoming of a conventional oil-gas-water three-phase flow separator which is poor in effect; and the separator solves the problem on dehydrating high-water crude oil, ageing oil and crude oil high in the contents of polymer and demulsifier.

Description

Technical field [0001] The invention belongs to the technical field of petroleum gathering and transportation, and is especially suitable for the dehydration treatment of crude oil with high water content, aging oil and crude oil containing high polymer and demulsifier. Background technique [0002] At present, with the continuous exploitation of oilfields, some oilfields have entered the "tertiary oil recovery stage", and the water content of oilfield produced fluids has continued to rise. The use of conventional separators for three-phase separation of oil, gas and water has been unable to meet the requirements of subsequent production and export. standard. In tertiary oil recovery, the produced fluid contains a lot of polymers and surfactants. The thickness of the interface film of the oil-water emulsion increases, and the stability and conductivity are enhanced. It is easy to cause a short circuit between the electrode plates of the conventional electric dehydrator. Difficul...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G53/02
Inventor 陈世伟胡平王玉庆李庆银王瑜于宏亮牛俊邦
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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