Elevation type three-phase separator

A technology of three-phase separator and elevation angle, which is applied in the direction of liquid separation, separation method, and dispersed particle separation, etc., can solve the problems of low separation efficiency, unsatisfactory separation effect, and large equipment volume, and achieve high separation efficiency, compact structure, small footprint effect

Active Publication Date: 2014-03-26
PETROCHINA CO LTD
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide an elevation-angle three-phase separator to solve the problems of low separation efficiency, unsatisfactory separation effect and large equipment volume in horizontal and vertical separators.

Method used

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Embodiment Construction

[0021] like figure 1 As shown, the main body of the present invention is a steel tank body 1 whose axis and the horizontal plane form a certain angle. Angle placement can overcome the shortcomings of the small oil-water interface area of ​​the vertical separation container and the small distance between the oil-water interface of the horizontal separation container and the drain outlet, and can reduce the oil content of the separated sewage, thereby improving the quality of oil-water separation. The lower side of the tank body 1 is welded with a first support 17 and a second support 18 , and the length of the second support 18 is greater than that of the first support 17 .

[0022] The tank body 1 is in the shape of a hollow cylinder with non-equal diameters. From the bottom to the top, it can be divided into a large-diameter cylindrical section, a variable-diameter conical section and a small-diameter cylindrical section. Both ends of the tank body 1 are elliptical heads.

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Abstract

The invention relates to an elevation type three-phase separator which mainly comprises a tank body (1), wherein a certain included angle is formed between an axial line of the tank body (1) and a horizontal plane, a drain pipe (16) is arranged below the tank body (1), a second coalescer (8), a baffle plate (10) and a first coalescer (13) are sequentially arranged in the tank body (1) from bottom to top, two cross-intercommunicated oil collecting pipes (3) are arranged below the second coalescer (8) horizontally, a gas-liquid inlet (12) is arranged above the baffle plate (10), a safety valve (11) is arranged above the baffle plate (10), the first coalescer (13) is arranged in the tank body (1) above the gas-liquid inlet (12), and an exhaust hole (15) is formed in the top of the tank body (1). The elevation type three-phase separator is mainly applied to an oil well containing water and gas in the oilfield development industry, and oil, gas and water are separated by using a density difference of oil, gas and water and a forced separation facility of the elevation type three-phase separator.

Description

technical field [0001] The invention relates to a device for three-phase separation of oil, gas and water. Background technique [0002] At present, oilfields at home and abroad usually use gravity sedimentation method to separate oil, gas and water into three phases. In the oilfield production process, the principle of gravity separator is realized based on the density difference of different media. There are two main types of gravity separators commonly used in the field: horizontal separators and vertical separators, both of which are pressure storage tank settlers. The separation performance of the horizontal separator is better than that of the vertical separator. Because the horizontal separator has a large liquid collection area volume, it is suitable for the separation of foamed crude oil and associated gas. When the incoming liquid flow rate changes greatly, the horizontal separator The liquid level change is small and the buffering capacity is strong. The horizont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D19/00B01D17/02B01D17/025B01D45/02B01D50/00
Inventor 项勇周松罗晓明徐国安赵昕铭邹晓燕
Owner PETROCHINA CO LTD
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