阅读说明：本技术 一种油气水分离器单层腔升液机构 (Single-layer cavity liquid lifting mechanism of oil-gas-water separator ) 是由 姜传胜 裴红 周志刚 尤晓卉 李雪艳 何国霞 刘俊敏 赵玉红 王田田 于 2021-01-12 设计创作，主要内容包括：本发明涉及油田设备技术领域,具体地涉及一种油气水分离器单层腔升液机构,设置在罐体内,包括半圆形挡板和溢流板；所述半圆形挡板竖直设置在罐体内,半圆形挡板一侧设有密封板,所述密封板靠近半圆形挡板的端部上表面设有溢流板,所述溢流板与半圆形挡板之间围成升液管道；井流物经初步分离后,在半圆形挡板和溢流板围成的升液管道中液位缓慢升高,上层的油通过溢流板溢流至溢流板的另一侧,达到油气分离的目的。所述升液管道专为乳油流动设置的通道,对游离水起到了很好的剖离；独立的乳化油上升通道,有利于容器气浮的破乳及溢流板的设置。(The invention relates to the technical field of oilfield equipment, in particular to a single-layer cavity liquid lifting mechanism of an oil-gas-water separator, which is arranged in a tank body and comprises a semicircular baffle plate and an overflow plate; the semicircular baffle is vertically arranged in the tank body, a sealing plate is arranged on one side of the semicircular baffle, an overflow plate is arranged on the upper surface of the end part of the sealing plate close to the semicircular baffle, and a liquid lifting pipeline is enclosed between the overflow plate and the semicircular baffle; after the well fluid is primarily separated, the liquid level in a liquid lifting pipeline enclosed by the semicircular baffle plate and the overflow plate is slowly raised, and the oil on the upper layer overflows to the other side of the overflow plate through the overflow plate, so that the purpose of oil-gas separation is achieved. The liquid lifting pipeline is a channel specially arranged for the flowing of missible oil, and can well separate free water; the independent emulsified oil ascending channel is beneficial to demulsification of container air floatation and arrangement of an overflow plate.)

1. The utility model provides an oil gas water separator individual layer chamber rises liquid mechanism, sets up in jar body (1), its characterized in that: comprises a semicircular baffle (2) and an overflow plate (3); the vertical setting of semicircular baffle (2) is in jar body (1), and semicircular baffle (2) one side is equipped with closing plate (4), closing plate (4) are close to the tip upper surface of semicircular baffle (2) and are equipped with overflow plate (3), enclose into between overflow plate (3) and semicircular baffle (2) and rise liquid pipeline (5).

2. The oil-gas-water separator single-layer cavity liquid lifting mechanism as claimed in claim 1, characterized in that: the upper end and the lower end of the semicircular baffle (2) are respectively connected with the upper inner wall and the lower inner wall of the tank body (1); the top height of the overflow plate (3) is lower than that of the semicircular baffle (2).

3. The oil-gas-water separator single-layer cavity liquid lifting mechanism as claimed in claim 2, characterized in that: an emulsifiable oil cavity (6) is formed between the upper surface of the sealing plate (4) and the inner wall of the tank body (1), and an oil-gas-water separation cavity (7) is formed between the lower surface of the sealing plate and the inner wall of the tank body (1); the lower end of the liquid lifting pipeline (5) is communicated with the oil-gas-water separation cavity (7), and the upper end of the liquid lifting pipeline is communicated with the emulsion cavity (6).

4. The oil-gas-water separator single-layer cavity liquid lifting mechanism as claimed in claim 3, characterized in that: a double-folding back baffling mechanism is arranged in the oil-gas-water separation cavity (7), and comprises two vertical baffles (8), a bottom plate (10) and a guide plate (13); the two vertical baffles (8) are respectively connected with the two edges of the semicircular baffle (2) in a sealing way; a middle channel (11) is arranged between the two vertical baffles (8), and an outer channel (12) is arranged between the vertical baffles (8) and the inner wall of the tank body (1); two guide plates (13) are vertically arranged on one side of each vertical baffle (8), the guide plates (13) are hermetically connected with the bottoms of the two vertical baffles (8) through a bottom plate (10), the end part of the bottom plate (10) is hermetically connected with the inner wall of the semicircular baffle (2), and the tops of the two vertical baffles (8) and the tops of the guide plates (13) are hermetically connected with the sealing plate (4); the inner side of the guide plate (13) is provided with a flow guide channel (14), and each flow guide channel (14) is communicated with the middle channel (11) and the outer channel (12).

5. The oil-gas-water separator single-layer cavity liquid lifting mechanism as claimed in claim 4, wherein: the guide plate (13) is in a hollow semi-cylindrical shape; two sealing connection between guide plate (13), sealing connection between guide plate (13) both sides border and the jar body (1) inner wall.

6. The oil-gas-water separator single-layer cavity liquid lifting mechanism of claim 4 or 5, characterized in that: and coalescence plates (17) are arranged in the middle channel (11) and the outer channel (12).

7. The single-layer cavity liquid lifting mechanism of the oil-gas-water separator according to any one of claims 1 to 5, characterized in that: the single-layer cavity liquid lifting mechanism of the oil-gas-water separator is arranged on one side of the feed port (15), and the feed port (15) is arranged at one end of the tank body (1).

8. The oil-gas-water separator single-layer cavity liquid lifting mechanism as claimed in claim 7, characterized in that: the feed inlet (15) is connected with the distributor (16), and the distributor (16) is located between the feed inlet (15) and the semicircular baffle (2).

9. The oil-gas-water separator single-layer cavity liquid lifting mechanism as claimed in claim 8, characterized in that: and a rectifier (9) is arranged at one end of the outer channel (12) close to the distributor (16).

10. The single-layer cavity liquid lifting mechanism of the oil-gas-water separator according to any one of claims 1 to 5, 8 and 9, characterized in that: the tank body (1) is of a cylindrical horizontal structure.

Technical Field

The invention relates to the technical field of oilfield equipment, in particular to a single-layer cavity liquid lifting mechanism of an oil-gas-water separator.

Background

The oil-gas-water separation equipment can separate part of water in crude oil while performing gas-liquid separation on oil well products. Along with the development of oil fields, the water content of oil well output liquid is gradually increased, and the application of oil-gas-water separation equipment is also gradually increased. The liquid level control principle is that an oil pool and a water baffle are arranged in the oil-gas-water separation equipment. Crude oil overflows to an oil pool from the oil baffle plate, and the oil level in the oil pool is controlled by an electric oil outlet valve. The water flows into the water chamber through the water baffle, and the liquid level of the water chamber is controlled by a water outlet valve controlled by the water level regulator.

The working principle of the oil-gas-water separation equipment is as follows: the oil-gas-water separation equipment mainly utilizes the difference in density of the oil, the gas and the water to realize the separation of the oil, the gas and the water, and ensures enough residence time in the flowing process, thereby realizing the layering of the oil, the gas and the water. However, in order to ensure sufficient residence time, the conventional oil-gas-water separation equipment generally requires longer residence time, so that the process is long, and the tank body of the oil-gas-water separation equipment has larger diameter and longer length, thereby bringing a series of problems to the manufacturing cost, installation, transportation and the like. Therefore, it is necessary to design a single-layer cavity liquid lifting mechanism of the oil-gas-water separator, which can increase the settling time of oil-gas-water.

Disclosure of Invention

The invention aims to overcome the problems in the prior art, and provides a single-layer cavity liquid lifting mechanism of an oil-gas-water separator, which can greatly increase the settling time of oil-gas-water.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a single-layer cavity liquid lifting mechanism of an oil-gas-water separator is arranged in a tank body and comprises a semicircular baffle plate and an overflow plate; the semicircular baffle is vertically arranged in the tank body, a sealing plate is arranged on one side of the semicircular baffle, an overflow plate is arranged on the upper surface of the end part of the sealing plate close to the semicircular baffle, and a liquid lifting pipeline is enclosed between the overflow plate and the semicircular baffle; after the well fluid is primarily separated, the liquid level in a liquid lifting pipeline enclosed by the semicircular baffle plate and the overflow plate is slowly raised, and the oil on the upper layer overflows to the other side of the overflow plate through the overflow plate, so that the purpose of oil-gas separation is achieved. The liquid lifting pipeline is a channel specially arranged for the flowing of missible oil, and can well separate free water; the independent emulsified oil ascending channel is beneficial to demulsification of container air floatation and arrangement of an overflow plate.

Furthermore, the upper end and the lower end of the semicircular baffle are respectively connected with the upper inner wall and the lower inner wall of the tank body; the top height of the overflow plate is lower than that of the semicircular baffle plate, so that well fluid can flow out from the fluid lifting pipeline after being separated.

Furthermore, an emulsifiable oil cavity is formed between the upper surface of the sealing plate and the inner wall of the tank body, and an oil-gas-water separation cavity is formed between the lower surface of the sealing plate and the inner wall of the tank body; the lower end of the liquid lifting pipeline is communicated with the oil-gas-water separation cavity, and the upper end of the liquid lifting pipeline is communicated with the missible oil cavity; after well flow commodity circulation to oil gas water separation chamber, the profit carries out primary separation, and the liquid level slowly rises in the lift liquid pipeline, and the oil on upper strata overflows to cream oil chamber through the overflow plate, realizes oil-gas separation.

Furthermore, a double-folding back baffling mechanism is arranged in the oil-gas-water separation cavity and comprises two vertical baffles, a bottom plate and a guide plate; the two vertical baffles are respectively connected with the two edges of the semicircular baffle in a sealing way; a middle channel is arranged between the two vertical baffles, and an outer channel is arranged between the vertical baffles and the inner wall of the tank body; two guide plates are vertically arranged on one side of each vertical baffle, the guide plates are in sealing connection with the bottoms of the two vertical baffles through a bottom plate, the end parts of the bottom plates are in sealing connection with the inner walls of the semicircular baffles, and the tops of the two vertical baffles and the tops of the guide plates are sealed with a sealing plate; the inner side of the guide plate is provided with a flow guide channel, and each flow guide channel is communicated with the middle channel and the outer channel; after the well flow gets into oil gas water separation chamber, carry out oil-water separation formula's flow forward from the outside passageway of vertical baffle both sides, merge into one after each inside longitude turn of guide plate and flow the separation from the centre channel toward the backward flow, the liquid level slowly risees, upwards overflows from the liquid pipe that rises, and this structure setting has increased dwell time, has prolonged the distance and the time of perpendicular separation greatly.

Further, the single-layer cavity liquid lifting mechanism of the oil-gas-water separator is arranged on one side of the feed port, and the feed port is arranged at one end of the tank body; the feed inlet is connected with the distributor, and the distributor is located between the feed inlet and the semicircular baffle.

Further, the guide plate is in a hollow semi-cylindrical shape; two sealing connection between the guide plate, sealing connection between guide plate both sides border and the internal wall of jar.

Furthermore, coalescence plates are arranged in the middle channel and the outer channel.

Furthermore, one end of the outer channel, which is close to the distributor, is provided with a rectifier.

Further, the tank body is of a cylindrical horizontal structure.

Compared with the prior art, the invention has the following advantages:

(1) the liquid lifting pipeline is used as a channel for flowing of missible oil, and plays a good role in separating free water;

(2) the independent emulsified oil ascending channel is beneficial to demulsification of container air floatation;

(3) the independent emulsified oil ascending channel is beneficial to the arrangement of the overflow weir plate, and creates conditions for the equipment to obliquely press the gas phase space of the alternating current-direct current de-cavity;

(4) the independent emulsified oil ascending channel creates conditions for realizing independent gas phase space for the high point of the inclined equipment;

(5) the independent emulsified oil ascending channel is positioned on one side of the highest end of the equipment, so that a necessary space is provided for the setting of a subsequent flow;

(6) the double-folding and reverse-folding mechanism adopts a flow channel design, is scientific and reasonable, and greatly prolongs the vertical separation distance and time by adopting a 180-degree turning technology; after turning 180 degrees, the emulsified oil flows upwards due to the inclination of the equipment, which is very favorable for the separation of oil and water; the characteristics that the oil flows to a high place and the water flows to a low place are met; the arrangement of the rectifier effectively avoids the mixed flow of oil, water and oil. The structural design of the invention solves the problem of a layer of unchangeable single-channel cylinder structure in the development of the petroleum industry in China, and greatly improves the processing efficiency of the same drift diameter.

Drawings

FIG. 1 is a longitudinal cross-sectional view of the invention (without the dispenser);

fig. 2 is a transverse cross-sectional view a-a of fig. 1 (including the dispenser) of the present invention.

In the figure, a tank body 1, a semicircular baffle 2, an overflow plate 3, a sealing plate 4, a liquid lifting pipeline 5, a missible oil cavity 6, an oil-gas-water separation cavity 7, a vertical baffle 8, a rectifier 9, a bottom plate 10, a middle channel 11, an outer channel 12, a guide plate 13, a guide channel 14, a feed inlet 15, a distributor 16 and a coalescence plate 17.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings of the specification.

Example 1:

as shown in fig. 1, the single-layer cavity liquid lifting mechanism of the oil-gas-water separator according to the embodiment is arranged in a cylindrical horizontal tank body 1 and comprises a semicircular baffle 2 and an overflow plate 3; the semi-circular baffle 2 is vertically arranged in the tank body 1, a sealing plate 4 is arranged on one side of the semi-circular baffle 2, an overflow plate 3 is arranged on the upper surface of the end part of the sealing plate 4 close to the semi-circular baffle 2, and a liquid lifting pipeline 5 is enclosed between the overflow plate 3 and the semi-circular baffle 2; after the well flow is primarily separated, the liquid level in a liquid lifting pipeline 5 formed by the semicircular baffle 2 and the overflow plate 3 is slowly raised, and the oil on the upper layer overflows to the other side of the overflow plate 3 through the overflow plate 3, so that the purpose of oil-gas separation is achieved. The liquid lifting pipeline 5 is a channel specially arranged for the flowing of missible oil, and can well separate free water; the independent emulsified oil ascending channel is beneficial to demulsification of container air floatation and arrangement of the overflow plate 3.

The upper end and the lower end of the semicircular baffle 2 are respectively connected with the upper inner wall and the lower inner wall of the tank body 1; the top height of the overflow plate 3 is lower than that of the semicircular baffle 2, so that well flow can conveniently flow out from the liquid lifting pipeline 5 after being separated.

An emulsifiable oil cavity 6 is arranged between the upper surface of the sealing plate 4 and the inner wall of the tank body 1, and an oil-gas-water separation cavity 7 is arranged between the lower surface of the sealing plate and the inner wall of the tank body 1; the lower end of the liquid lifting pipeline 5 is communicated with the oil-gas-water separation cavity 7, and the upper end of the liquid lifting pipeline is communicated with the missible oil cavity 6; after well flow commodity circulation to oil gas water separation chamber 7, the oil-water carries out the initial gross separation, and the liquid level slowly risees in rising liquid pipeline 5, and the oil on upper strata overflows to cream oil chamber 6 through overflow plate 3, realizes oil-gas separation.

As shown in fig. 1 and 2, a double-folding and reverse-folding mechanism is arranged in the oil-gas-water separation chamber 7, and comprises two vertical baffles 8, a bottom plate 10 and a guide plate 13; the two vertical baffles 8 are respectively connected with the two edges of the semicircular baffle 2 in a sealing way; a middle channel 11 is arranged between the two vertical baffles 8, and an outer channel 12 is arranged between the vertical baffles 8 and the inner wall of the tank body 1; two guide plates 13 are vertically arranged on one side of each vertical baffle 8, the guide plates 13 are hermetically connected with the bottoms of the two vertical baffles 8 through a bottom plate 10, the end parts of the bottom plates 10 are hermetically connected with the inner walls of the semicircular baffles 2, and the tops of the two vertical baffles 8 and the tops of the guide plates 13 are hermetically connected with the sealing plates 4; the inner side of the guide plate 13 is provided with a guide channel 14, and each guide channel 14 is communicated with the middle channel 11 and the outer channel 12; after the well flow enters the oil-gas-water separation cavity 7, the oil-water separation type flow is carried out forward from the outer side channels 12 on the two sides of the vertical baffle 8, the well flow is combined into a flow from the middle channel 11 to flow back and flow for separation after being turned for 180 degrees in each direction by the guide plate 13, the liquid level is slowly increased, and the flow overflows upwards from the liquid lifting pipeline 5.

As shown in fig. 2, the single-layer cavity liquid lifting mechanism of the oil-gas-water separator is arranged on one side of the feed port 15, and the feed port 15 is arranged at one end of the tank body 1; the feed inlet 15 is connected with a distributor 16, and the distributor 16 is positioned between the feed inlet 15 and the semicircular baffle 2; the guide plate 13 is in a hollow semi-cylindrical shape; the two guide plates 13 are connected in a sealing way, and the edges of the two sides of each guide plate 13 are connected with the inner wall of the tank body 1 in a sealing way; the middle channel 11 and the outer channel 12 are both internally provided with a coalescence plate 17; the coalescence plates 17 located in the outer channels 12 are hydrophilic coalescence plate packings; the coalescence plate 17 in the middle channel 11 is oleophylic coalescence plate filler; a rectifier 9 is arranged at one end of the outer channel 12 close to the distributor 16; the rectifier 9 is positioned at the joint of the semicircular baffle plate 2 and the vertical baffle plate 8.

The working principle is as follows: when the invention is used, the tank body 1 is arranged from the feeding hole 15 in a downward inclination way, as shown in figure 1, well fluid enters the oil-gas-water separation cavity 7 through the distributor 16 and the rectifier 9, and then flows forwards in an oil-water separation way from the outer side channels 12 at two sides under the action of the semicircular baffle 2 to flow to the coalescence plate 17; after reaching the end of the coalescence plate 17, the two flows are combined into one flow through the guide plate 13 after turning 180 degrees inwards, and the flow is separated from the middle channel 11 back to the flow, so that the retention time is increased, and the distance and the time of vertical separation are greatly prolonged.

After the fluid turns 180 degrees, the emulsified oil flows upwards due to the inclination of the equipment, the semicircular area of the semicircular baffle 2 and the liquid lifting pipeline 5 enclosed by the overflow plate 3 ensure that the liquid level slowly rises in the liquid lifting pipeline 5, and the emulsified oil overflows to the emulsified oil cavity 6 through the overflow plate 3, so that the purpose of oil-gas separation is achieved.

The above embodiments are only specific examples of the present invention, and the protection scope of the present invention includes but is not limited to the product forms and styles of the above embodiments, and any suitable changes or modifications made by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.