CN217025875U - Natural gas-liquid separation device - Google Patents
Natural gas-liquid separation device Download PDFInfo
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- CN217025875U CN217025875U CN202122232069.5U CN202122232069U CN217025875U CN 217025875 U CN217025875 U CN 217025875U CN 202122232069 U CN202122232069 U CN 202122232069U CN 217025875 U CN217025875 U CN 217025875U
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Abstract
The utility model provides a natural gas-liquid separation device, which comprises: a cooling pool; the gas-liquid separation coil is arranged in the cooling pool and comprises a spiral section, an inlet section and an outlet section, wherein the inlet section and the outlet section are connected to two ends of the spiral section; one end of the connecting pipe is connected with the outlet section, and the other end of the connecting pipe is used for connecting a natural gas pipeline; and the water storage tank is communicated with the connecting pipe and is positioned below the connecting pipe. The utility model leads the natural gas to be cooled under the action of the cooling medium after entering the spiral section, separates the free water in the natural gas, and the separated oil-water mixture flows downwards along the spiral section and finally flows into the water storage tank through the outlet section and the connecting pipe, thereby being convenient for periodic discharge. Compared with the prior art, the utility model has simpler structure and low cost, and is more suitable for small-sized oil transfer stations; meanwhile, the method has a good separation effect on associated gas with high temperature in the later stage of oil production.
Description
Technical Field
The utility model relates to the technical field of gas-liquid separation, in particular to a natural gas-liquid separation device.
Background
The underground product in the oil production process is an oil-gas-water mixture, most of water is separated out through a three-phase separator of an oil transfer station to be used as ground water mixing circulation, the separated natural gas is separated into liquid through an oil remover, and the natural gas is conveyed to a gas station through a pipeline. The pipeline hydrops causes that the conveying pressure is high in the natural gas pipeline conveying process, the liquid inlet capacity of the three-phase separator is influenced reversely, and the liquid inlet capacity is equivalent to the liquid level, so that the crude oil yield is influenced. When the natural gas conveying pressure is too high, a torch needs to be ignited for pressure relief, the operation steps are complex, potential safety hazards exist, and energy waste can be caused.
In contrast, chinese patent application publication No. CN110835565A discloses a natural gas-liquid separation apparatus, which includes a separator, a laval nozzle and a separation tank, wherein liquid is thrown onto and moves along the side wall due to centrifugal force, and the liquid is cooled into liquid droplets by the laval nozzle through speed-increasing, pressure-reducing and temperature-reducing processes.
Although the separation efficiency of the separation device is high, the device is complex in structure and high in manufacturing cost, the separation device is not suitable for a small-sized oil transfer station, the separation effect of associated gas with high temperature in the later stage of oil production is poor, and the problems that the oil-water separation in field natural gas is incomplete and the pressure of the exported natural gas is high are easy to occur.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a natural gas-liquid separation device which has simple structure, low cost and better separation effect on high-temperature associated gas.
In order to achieve the purpose, the natural gas-liquid separation device adopts the following technical scheme:
a natural gas-liquid separation device comprises a cooling pool for containing a cooling medium and a gas-liquid separation coil arranged in the cooling pool, wherein the gas-liquid separation coil is used for separating an oil-water mixture in natural gas, the gas-liquid separation coil comprises a spiral section, an inlet section and an outlet section, the inlet section and the outlet section are connected to two ends of the spiral section, the outlet section is located below the spiral section, the inlet section and the outlet section both penetrate through the pool wall of the cooling pool, and the inlet section is used for being connected with a natural gas pipeline; the natural gas-liquid separation device also comprises a connecting pipe and a water storage tank communicated with the connecting pipe, wherein one end of the connecting pipe is connected with the outlet section, and the other end of the connecting pipe is used for connecting a natural gas pipeline; the water storage tank is positioned below the connecting pipe and used for storing the separated oil-water mixture.
The beneficial effects of the above technical scheme are that: the natural gas-liquid separation device comprises a cooling pool and a gas-liquid separation coil arranged in the cooling pool, wherein an inlet section of the gas-liquid separation coil is used for being connected with a natural gas pipeline, and an outlet section of the gas-liquid separation coil is positioned below a spiral section, so that after natural gas enters the spiral section through the inlet section, the natural gas can be cooled under the action of a cooling medium in the cooling pool, free water in the natural gas is separated more fully, the purpose of further separating liquid in the natural gas is realized, and the continuous and stable production of a natural gas output system is ensured. The separated oil-water mixture flows downwards along the spiral section and finally flows into the connecting pipe through the outlet section, and the water storage tank communicated with the connecting pipe is arranged below the connecting pipe, so that the oil-water mixture can be stored in the water storage tank and is convenient to discharge periodically.
The utility model utilizes the cooling pool and the gas-liquid separation coil pipe to separate the liquid in the natural gas, has simple structure and low cost compared with the prior art, and is more suitable for small-sized oil transfer stations. Meanwhile, the method has a good separation effect on associated gas with high temperature in the later stage of oil production, and solves the problems that the oil-water separation in the on-site natural gas is not thorough and the pressure of the exported natural gas is high.
Further, the inlet section and the outlet section are arranged in parallel.
The beneficial effects of the above technical scheme are that: simple structure, convenient configuration and use.
Further, the inlet section and the outlet section both extend in the up-down direction and pass through the pool wall at the bottom of the cooling pool.
The beneficial effects of the above technical scheme are that: the separated oil-water mixture can flow out from the gas-liquid separation coil pipe.
Further, the inducer passes from the inside of the spiral section.
The beneficial effects of the above technical scheme are that: compact structure, does not occupy outside space, the convenient arrangement.
Further, the spiral section is in a cylindrical spiral shape.
The beneficial effects of the above technical scheme are that: simple structure, convenient configuration and use.
Furthermore, the spiral section is composed of a plurality of circles of pipe sections, and two adjacent circles of pipe sections are arranged in a clinging mode.
The beneficial effects of the above technical scheme are that: the cooling path of natural gas is lengthened, and the cooling effect can be improved, so that the free water in the natural gas can be more sufficiently separated.
Further, the connecting pipe is located below the outlet section.
The beneficial effects of the above technical scheme are that: the oil-water mixture can flow into the connecting pipe conveniently.
Furthermore, the connecting pipe is L-shaped and comprises a vertical section and a horizontal section which are vertically communicated, the vertical section is connected with the outlet section, the horizontal section is used for connecting a natural gas pipeline, and the water storage tank is communicated with the horizontal section.
The beneficial effects of the above technical scheme are that: the processing, the manufacturing and the connection are convenient.
Furthermore, a drain pipe is connected to the water storage tank.
The beneficial effects of the above technical scheme are that: and the pollution discharge is convenient.
Furthermore, a valve is arranged on the sewage discharge pipe.
The beneficial effects of the above technical scheme are that: the on-off of the sewage draining pipe is conveniently controlled.
Drawings
Fig. 1 is a schematic configuration diagram of a natural gas-liquid separation apparatus according to an embodiment 1 of the present invention.
In the figure: 1. a cooling pool; 2. a gas-liquid separation coil; 21. a coil section; 22. an inlet section; 23. an outlet section; 3. a connecting pipe; 31. a vertical section; 32. a horizontal segment; 4. a water storage tank; 5. a blow-off pipe; 6. and (4) a valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the utility model, are intended for purposes of illustration only and are not intended to limit the scope of the utility model. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
The features and properties of the present invention are described in further detail below with reference to examples.
An embodiment 1 of the natural gas-liquid separation device of the utility model is shown in fig. 1, and comprises a cooling pool 1, a gas-liquid separation coil 2, a connecting pipe 3 and a water storage tank 4, wherein the cooling pool 1 is used for accommodating a cooling medium, and the cooling medium can be cold water or cold air.
Gas-liquid separation coil 2 sets up in cooling tank 1 for the oil water mixture in the separation natural gas, gas-liquid separation coil 2 includes spiral section 21 and connects inlet section 22 and the export section 23 at spiral section 21 both ends, and spiral section 21 is the cylinder spiral, comprises many circles of pipe sections, hugs closely the setting between the adjacent two circles of pipe sections, has prolonged the cooling route of natural gas like this in other words, can improve the cooling effect, makes the more abundant separation of free water in the natural gas come out. The inlet section 22 and the outlet section 23 are arranged in parallel and extend in the up-down direction, the inlet section 22 penetrates through the inner side of the spiral section 21, the inlet section 22 and the outlet section 23 penetrate through the bottom wall of the cooling pool 1, and the inlet section 22 is used for being connected with a natural gas pipeline so that natural gas can enter the gas-liquid separation coil 2. The outlet section 23 is located below the coil section 21 and is connected to the connecting tube 3.
Connecting pipe 3 is located the below of export section 23, and is specific, and connecting pipe 3 is the L shape, including vertical section 31 and the horizontal segment 32 of perpendicular intercommunication, and vertical section 31 is connected with export section 23, and horizontal segment 32 is used for connecting the natural gas pipeline to the natural gas discharge separator after the gas-liquid separation.
The working principle of the natural gas-liquid separation device is as follows:
when the natural gas separation device is used, the inlet section 22 and the horizontal section 32 are respectively connected with a natural gas pipeline, the produced liquid of an oil well enters the spiral section 21 through the inlet section 22 after being separated through the three-phase separator, and the temperature is reduced under the action of the cooling medium in the cooling pool, so that the free water in the natural gas is more fully separated, the purpose of further separating the liquid in the natural gas is realized, and the continuous and stable production of a natural gas output system is ensured. The separated oil-water mixture flows downwards along the spiral section 21 and finally flows into the connecting pipe 3 through the outlet section 23, and the water storage tank 4 is communicated below the connecting pipe 3, so that the oil-water mixture can flow into and be stored in the water storage tank 4, and periodic discharge is realized through the sewage discharge pipe 5 and the valve 6.
The natural gas-liquid separation device can perform secondary separation on oil and water in the external natural gas, successfully solves the problem of high pressure of the external natural gas, and reduces the cost of flushing pipelines with nitrogen and water. And the pressure of the natural gas is reduced, so that the pressure of the single well entering the separator is indirectly reduced, the yield of crude oil is improved, a torch is prevented from being frequently ignited by an oil transfer station, and the natural gas is saved.
The utility model utilizes the cooling pool and the gas-liquid separation coil pipe to separate the liquid in the natural gas, has simpler structure and low cost compared with the prior art, and is more suitable for small-sized oil transfer stations. Meanwhile, the method has a good separation effect on associated gas with high temperature in the later stage of oil production, and solves the problems that the oil-water separation in the on-site natural gas is not thorough and the pressure of the exported natural gas is high.
Example 2 of the natural gas-liquid separation apparatus of the present invention: unlike the embodiment 1, the valve is not installed on the sewage drain, but the sewage drain is blocked by a plug.
Example 3 of the natural gas-liquid separation apparatus of the present invention: unlike the embodiment 1, the water storage tank is not connected with a sewage drain pipe, and the oil-water mixture is pumped out by a pump after being stored for a certain period of time.
Example 4 of the natural gas-liquid separation apparatus of the present invention: the difference from embodiment 1 is that the connection pipe is a straight pipe, one end of which is directly connected to the outlet section and the other end is directly connected to the natural gas pipeline.
Example 5 of the natural gas-liquid separation apparatus of the present invention: in contrast to embodiment 1, the connecting pipe is not located below the outlet section, but at the same level as the outlet section, for example when the outlet section extends horizontally.
Example 6 of the natural gas-liquid separation apparatus of the present invention: unlike example 1, there is a gap between adjacent coil sections of the coil section.
Example 7 of the natural gas-liquid separation apparatus of the present invention: unlike example 1, the spiral section is a conical spiral shape or a square column spiral shape.
Example 8 of the natural gas-liquid separation apparatus of the present invention: unlike example 1, the inducer extends downwardly from the outside of the spiral section.
Example 9 of the natural gas-liquid separation apparatus of the present invention: in contrast to example 1, the inlet section and the outlet section both extend horizontally, passing through the wall of the cooling bath on the sides.
Example 10 of the natural gas-liquid separation apparatus of the present invention: in contrast to exemplary embodiment 1, the inlet section and the outlet section are not parallel, for example the inlet section extends vertically and the outlet section extends horizontally.
The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be embraced therein.
Claims (10)
1. The natural gas-liquid separation device is characterized by comprising a cooling pool (1) for containing a cooling medium and a gas-liquid separation coil (2) arranged in the cooling pool (1), wherein the gas-liquid separation coil (2) is used for separating oil-water mixtures in natural gas, the gas-liquid separation coil (2) comprises a spiral section (21), an inlet section (22) and an outlet section (23) which are connected to two ends of the spiral section (21), the outlet section (23) is positioned below the spiral section (21), the inlet section (22) and the outlet section (23) both penetrate through the pool wall of the cooling pool (1), and the inlet section (22) is used for being connected with a natural gas pipeline; the natural gas-liquid separation device also comprises a connecting pipe (3) and a water storage tank (4) communicated with the connecting pipe (3), one end of the connecting pipe (3) is connected with the outlet section (23), and the other end of the connecting pipe (3) is used for connecting a natural gas pipeline; the water storage tank (4) is positioned below the connecting pipe (3) and is used for storing the separated oil-water mixture.
2. The natural gas-liquid separation device according to claim 1, wherein the inlet section (22) and the outlet section (23) are arranged in parallel.
3. The natural gas-liquid separation device according to claim 2, characterized in that the inlet section (22) and the outlet section (23) each extend in the up-down direction and pass through the pool wall at the bottom of the cooling pool (1).
4. The natural gas-liquid separation device according to claim 3, wherein the inlet section (22) passes through the inside of the coil section (21).
5. The natural gas-liquid separation device according to any one of claims 1 to 4, wherein the spiral section (21) has a cylindrical spiral shape.
6. The natural gas-liquid separation device according to any one of claims 1 to 4, wherein the spiral section (21) is formed by a plurality of circle pipe sections, and adjacent two circle pipe sections are closely arranged.
7. The natural gas-liquid separation device according to any one of claims 1 to 4, wherein the connection pipe (3) is located below the outlet section (23).
8. The natural gas-liquid separation device according to claim 7, wherein the connecting pipe (3) is L-shaped, the connecting pipe (3) comprises a vertical section (31) and a horizontal section (32) which are vertically communicated, the vertical section (31) is connected with the outlet section (23), the horizontal section (32) is used for connecting a natural gas pipeline, and the water storage tank (4) is communicated with the horizontal section (32).
9. The natural gas-liquid separation device according to any one of claims 1 to 4, wherein a drain pipe (5) is connected to the water storage tank (4).
10. The natural gas-liquid separation device according to claim 9, wherein a valve (6) is installed on the blow-off pipe (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122232069.5U CN217025875U (en) | 2021-09-15 | 2021-09-15 | Natural gas-liquid separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122232069.5U CN217025875U (en) | 2021-09-15 | 2021-09-15 | Natural gas-liquid separation device |
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| Publication Number | Publication Date |
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| CN217025875U true CN217025875U (en) | 2022-07-22 |
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| CN202122232069.5U Active CN217025875U (en) | 2021-09-15 | 2021-09-15 | Natural gas-liquid separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962815A (en) * | 2023-03-14 | 2023-04-14 | 克拉玛依市城投油砂矿勘探有限责任公司 | Natural gas metering and separating device |
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2021
- 2021-09-15 CN CN202122232069.5U patent/CN217025875U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115962815A (en) * | 2023-03-14 | 2023-04-14 | 克拉玛依市城投油砂矿勘探有限责任公司 | Natural gas metering and separating device |
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