CN217661665U - Multiphase fluid mixed transportation water-gas separation device - Google Patents
Multiphase fluid mixed transportation water-gas separation device Download PDFInfo
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- CN217661665U CN217661665U CN202221448974.2U CN202221448974U CN217661665U CN 217661665 U CN217661665 U CN 217661665U CN 202221448974 U CN202221448974 U CN 202221448974U CN 217661665 U CN217661665 U CN 217661665U
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Abstract
The utility model provides a heterogeneous fluid miscarriage water-gas separation device, including two settling casks, all be equipped with the feed liquor pipeline on the settling cask, the liquid outlet pipe way, outlet duct and outlet pipe, two settling casks still are equipped with two centrifugal pumps with between, the mixed liquid in the settling cask is followed from last down being the natural gas in proper order through the input of feed liquor pipeline, the form distribution of crude oil and water, natural gas and water in the settling cask are respectively through outlet duct and the outside discharge of outlet pipe, direct reinjection to the oil field water injection well through the outside discharged water of outlet pipe, the mixed liquid that stays in first settling cask and the second settling cask carries out circulation transport and separation crude oil and water through first centrifugal pump and second centrifugal pump respectively, the crude oil through a lot of separation is outwards discharged by the liquid outlet pipe way. The problems that the water, gas and oil separation process in the mixed liquid separation is complex and the separated substances cannot be effectively utilized in the oil-gas well field can be solved, the integral integration level is high, the manufacturing cost is low, and the construction field is safe and environment-friendly.
Description
Technical Field
The utility model relates to an oil gas field water gas splitter technical field, concretely relates to heterogeneous fluid is defeated water gas separator thoughtlessly.
Background
The oil and gas field enters a secondary exploitation stage, water needs to be injected into the oil and gas field to keep formation pressure and energy, an oil and gas production unit conventionally injects water into a water injection well through a water injection system pipeline of a water injection united station and a water distribution room, but a newly developed oil and gas block, an exploration block, an evaluation block and the like are not matched with a water injection system, and peripheral remote oil and gas wells cannot obtain water injection to supplement the formation energy and pressure.
In order to solve the problems, the oil-gas field is traditionally implemented by separating oil, gas and water respectively through an oil-gas-water separator, natural gas is conveyed by a compressor, an oil-water mixture is subjected to secondary separation, and the separated water is conveyed to a water injection well through a water pump, so that the traditional three separators are complex in process, high in manufacturing cost, large in occupied area, high in investment, high in risk, high in safety and environmental protection level, and low in utilization rate of the separated substances.
Disclosure of Invention
In order to solve certain or some technical problem that exists among the prior art, the utility model provides a heterogeneous fluid miscarriage aqueous vapor separator can solve the problem that water, gas, the oil separation technology of oil gas well scene in to the miscella separation is complicated and the separator can't obtain effectual utilization, and whole integrated level is high, and the cost of manufacture is low, and job site safety, environmental protection and investment risk are low.
For solving the above-mentioned prior art problem, the utility model discloses a following scheme:
a water-gas separation device for multiphase fluid mixed transportation comprises a first settling tank, a second settling tank, a liquid inlet pipeline, a liquid outlet pipeline, a first air outlet pipe, a first water outlet pipe, a second air outlet pipe and a second water outlet pipe, the first air outlet pipe and the first water outlet pipe are respectively arranged at the top and the bottom of the first settling tank, the second air outlet pipe and the second water outlet pipe are respectively arranged at the top and the bottom of the second settling tank, one end of the liquid inlet pipeline is respectively positioned at the tops of the first settling tank and the second settling tank, one end of the liquid outlet pipeline is arranged at the lower ends of the first settling tank and the second settling tank, a first centrifugal pump and a second centrifugal pump are further arranged between the first settling tank and the second settling tank, the mixed liquid conveyed into the first settling tank and the second settling tank through the liquid inlet pipeline forms shape distribution of natural gas, crude oil and water from top to bottom in sequence after being naturally layered in the corresponding settling tanks, the natural gas and the water in the first settling tank are discharged outwards through the first gas outlet pipe and the first water outlet pipe respectively, the natural gas and the water in the second settling tank are discharged outwards from the second gas outlet pipe and the second water outlet pipe respectively, the water discharged outwards through the first water outlet pipe and the second water outlet pipe is directly injected back into the oilfield water injection well, the mixed liquid which is mainly composed of crude oil and is remained in the first settling tank is conveyed to the second settling tank through the first centrifugal pump to be mixed and then separated again, and the mixed liquid which is mainly composed of crude oil and is left in the second settling tank is conveyed to the first settling tank through the second centrifugal pump to be mixed and then separated again, and the crude oil which is subjected to multiple times of separation is discharged outwards through the liquid outlet pipeline.
Furthermore, all be equipped with the liquid level counter on first settling cask with the second settling cask, first settling cask with the liquid level height accessible in the second settling cask is corresponding the liquid level counter monitors.
Furthermore, the first air outlet pipe and the second air outlet pipe are respectively provided with an air pressure valve, and natural gas in the first settling tank and the second settling tank is discharged outwards after being opened through the air pressure valves.
Further, the pneumatic valve on the first settling tank is a low-pressure air valve, and the pneumatic valve on the second settling tank is a high-pressure valve.
Furthermore, a pressure sensor is arranged on one side of the first settling tank and one side of the second settling tank, the pressure sensor is arranged on the liquid outlet pipeline, and the liquid outlet pipeline is controlled to open and close through the pressure sensor.
Furthermore, each pipeline communicated with the first settling tank and the second settling tank is provided with a one-way valve, the first settling tank and the second settling tank are provided with a safety valve, one end of each safety valve is communicated with the liquid outlet pipeline, and liquid in the first settling tank and the second settling tank can be directly conveyed into the liquid outlet pipeline through the safety valves.
Compared with the prior art, the beneficial effects of the utility model reside in that:
the primary separation of water, oil and gas can be directly carried out in the first settling tank and the second settling tank by mixed liquid pumped from an oil-gas well, natural gas generated in the separation process can be supplied to surrounding residents to be used as domestic gas, water and impurities fixed at the bottom can be directly backfilled into a water injection well of an oil field, crude oil mixed liquid with higher concentration after the primary separation is guided back and forth between the first settling tank and the second settling tank through the first centrifugal pump and the second centrifugal pump, and is subjected to high-precision water, oil and gas separation again, so that the purity of crude oil finally discharged from a liquid outlet pipeline is higher, the problem that the source of civil gas is lacked in a civil gas station due to the fact that no water source exists at the periphery during development is solved, the separated gas is effectively and fully utilized, the mixed liquid can be used as domestic gas, high-pressure gas compressed natural gas or liquefied natural gas, the problem that the source of the civil gas is lacked in the civil gas station is solved, the problems that water, the process for separating the mixed liquid from the oil well is complex, the separated substances cannot be used in the civil gas field and the environment-gas separation process is solved, and the problem that the integrated construction cost is low and the whole construction cost is effectively low is effectively achieved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: the device comprises a first water outlet pipe 1, a safety valve 2, a liquid level meter 3, a pressure sensor 4, a first settling tank 5, a liquid inlet pipeline 6, a first air outlet pipe 7, a pneumatic valve 8, a second air outlet pipe 9, a second settling tank 10, a second centrifugal pump 11, a first centrifugal pump 12, a second water outlet pipe 13, a liquid outlet pipeline 14 and a one-way valve 15.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1, a water-gas separation device for multiphase fluid mixed transportation comprises a first settling tank 5, a second settling tank 10, a liquid inlet pipe 6, a liquid outlet pipe 14, a first gas outlet pipe 7, a first water outlet pipe 1, a second gas outlet pipe 9 and a second water outlet pipe 13, wherein the first gas outlet pipe 7 and the first water outlet pipe 1 are respectively arranged at the top and the bottom of the first settling tank 5, the second gas outlet pipe 9 and the second water outlet pipe 13 are respectively arranged at the top and the bottom of the second settling tank 10, one end of the liquid inlet pipe 6 is respectively arranged at the top of the first settling tank 5 and the top of the second settling tank 10, one end of the liquid outlet pipe 14 is arranged at the lower end of the first settling tank 5 and the lower end of the second settling tank 10, and a first centrifugal pump 12 and a second centrifugal pump 11 are further arranged between the first settling tank 5 and the second settling tank 10, through inlet liquid pipeline 6 carries first settling cask 5 with the form distribution that mixed liquid in the second settling cask 10 forms from last down is natural gas, crude oil and water in proper order after the natural layering in the settling cask that corresponds, natural gas and water in the first settling cask 5 pass through respectively first outlet duct 7 and the outside discharge of first outlet pipe 1, natural gas and water in the second settling cask 10 are followed respectively second outlet duct 9 and the outside discharge of second outlet pipe 13, through first outlet pipe 1 with the outside discharged water of second outlet pipe 13 is direct to be reinjected to the oil field water injection well, the mixed liquid who persists in the first settling cask 5 and uses crude oil as main passes through first centrifugal pump 12 carries carry mix back re-segregation in the second settling cask 10, the mixed liquid that persists in the second settling cask 10 and uses crude oil as main passes through second centrifugal pump 11 carries mix back re-segregation after mixing in the first settling cask 5 And after separation, the crude oil subjected to multiple times of separation is discharged outwards from the liquid outlet pipeline 14.
In the practical use process, the first settling tank 5 and the second settling tank 10 are placed side by side, the mixed liquid in the first settling tank 5 and the second settling tank 10 flows in inwards through the liquid inlet pipeline 6, in the flowing-in process, the gas floats upwards, the liquid is precipitated downwards, when the mixed liquid in the first settling tank 5 or the second settling tank 10 is injected to a certain degree, the pressure generated after the gas is compressed is increased to a certain value, the gas is discharged outwards from the corresponding gas outlet pipe, the discharged gas can be directly used as domestic gas, when the liquid is injected to a certain degree, the liquid is placed in the first settling tank 5 and the second settling tank 10, at the moment, the gas in the liquid is continuously discharged upwards, the water and the impurities are precipitated downwards, the precipitated water and the impurities are discharged outwards through the first water outlet pipe 1 and the second water outlet pipe 13 at the bottom and can be directly re-injected into the water injection well through the pipelines, so that the liquid in the first settling tank 5 and the second settling tank 10 is mainly crude oil, then the liquid in the first settling tank 5 is conveyed into the second settling tank 10 through the first centrifugal pump 12, the oil and the water are separated again through the second settling tank 10, the gas in the second settling tank 10 is extruded outwards, the water and the impurities precipitated in the second settling tank 10 are discharged outwards, and finally the purified crude oil is discharged outwards through the liquid outlet pipeline 14, similarly, the liquid in the second settling tank 10 can also be conveyed into the first settling tank 5 through the second centrifugal pump 11 for treatment, on the basis of the above, the liquid mainly comprising crude oil can also be conveyed back and forth between the first settling tank 5 and the second settling tank 10 through the first centrifugal pump 12 and the second centrifugal pump 11 until the final crude oil content reaches the required standard, when crude oil is switched and conveyed, the first centrifugal pump 12 and the second centrifugal pump 11 are adopted for conveying respectively, the conveying stability is higher, the control is more convenient, the whole body is less prone to damage, the liquid inlet pipeline 6 and the gas outlet pipeline are arranged at the upper end of the settling tank, the water outlet pipe is arranged at the bottom of the settling tank, the liquid input and the gas and water output are more convenient and faster, the liquid outlet pipeline 14 is arranged at the lower end of the settling tank, the purity of the crude oil output from the liquid outlet pipeline 14 can be effectively ensured to be higher, impurities and water are less prone to be mixed, mixed liquid pumped from an oil gas well can be directly input into the first settling tank 5 and the second settling tank 10 for preliminary separation of water, oil and gas, natural gas generated in the separation process can be supplied to surrounding households for use as domestic gas, and the water and the impurities fixed at the bottom can be directly backfilled into a water injection well of the oil field, the crude oil mixed liquid with higher concentration after primary separation is guided back and forth between the first settling tank 5 and the second settling tank 10 through the first centrifugal pump 12 and the second centrifugal pump 11 and is separated from water, oil and gas with high precision again, so that the purity of the crude oil finally discharged from the liquid outlet pipeline 14 is higher, the problem that the oil-gas field cannot be refilled due to no water source at the periphery during development is effectively solved, the separated gas is effectively and fully utilized and can be used as domestic gas, high-pressure gas compressed natural gas or liquefied natural gas and the like, the problem that a civil gas source is lacked in a local civil gas station is solved, and the problems that the water, gas and oil separation process in the mixed liquid separation is complicated and the separated substances cannot be effectively utilized on the site of an oil-gas well are solved, the integrated level is high, the manufacturing cost is low, the construction site is safe and environment-friendly, and the investment risk is low.
When the mixed liquid is separated by the first settling tank 5 and the second settling tank 10, in addition to the above embodiments, the following implementation method can be adopted, firstly, the oil-gas well mixed liquid injects liquid into the first settling tank 5 through the liquid inlet pipeline 6, the mixed liquid in the first settling tank 5 naturally stratifies the fluid according to the density difference and gravity reason, the water is in the lowest part of the first settling tank 5, the crude oil is in the middle, the natural gas is in the uppermost part of the first settling tank 5, the upper natural gas pressure is higher and higher along with the continuous entering of the fluid, the upper opening pressure valve of the first settling tank 5 is automatically opened, the internal pressure can be automatically controlled through the first centrifugal pump 12, when the pressure is too high, the first centrifugal pump 12 can be started to convey the liquid into the second settling tank 10, when the liquid reaches a certain degree and is separated, the liquid of the crude oil part is input into the second settling tank 10 through the first centrifugal pump 12, when the liquid falls to a certain degree, the first centrifugal pump 12 is closed, the liquid is conveyed again until the liquid in the second settling tank 10 reaches a certain degree and the liquid in the second settling tank 10, the mixed liquid can be purified again through the main settling tank 10, the mixed liquid can be extracted from the crude oil through the main settling tank 5, and the crude oil can be purified through the main settling tank 10, and the mixed liquid can be purified through the outlet pipeline 13, and the main crude oil well, so that the crude oil can be purified through the mixed liquid of the mixed liquid in the primary settling tank 5.
In a further improvement, the first settling tank 5 and the second settling tank 10 are both provided with a liquid level meter 3, and the liquid level heights in the first settling tank 5 and the second settling tank 10 can be monitored through the corresponding liquid level meters 3.
In the case of switching the liquid injection amount in the first settling tank 5 and the second settling tank 10 and the liquid between the two tanks, the liquid level can be monitored by the liquid level meter 3 and a switching signal is sent, for example: when the liquid level of the water in the first settling tank 5 is measured by the liquid level meter 3 and the liquid is about to be transfused, the first centrifugal pump 12 is started to convey the liquid into the second settling tank 10, when the liquid in the second settling tank 10 reaches a certain degree, the second settling tank stands still, crude oil is discharged outwards through the liquid outlet pipeline 14, when the water level is reduced to a certain value, the liquid outlet pipeline 14 is closed, then the second centrifugal pump 11 is started to convey all the liquid in the second settling tank 10 into the first settling tank 5 again, and vice versa.
Further, the first air outlet pipe 7 and the second air outlet pipe 9 are both provided with an air pressure valve 8, and the natural gas in the first settling tank 5 and the second settling tank 10 is discharged outwards after being opened through the air pressure valve 8; the air pressure valve 8 on the first settling tank 5 is a low-pressure air valve, and the air pressure valve 8 on the second settling tank 10 is a high-pressure valve.
The air pressure valve 8 is installed on the first air outlet pipe 7 and the second air outlet pipe 9, the pressure value can be set through the air pressure valve 8, when the pressure value of the gas area in the first settling tank 5 and the second settling tank 10 reaches the threshold value, the air pressure valve 8 is opened, gas can be discharged outwards in time, especially when the air pressure valve 8 on the first settling tank 5 is a low-pressure air valve and the air pressure valve 8 on the second settling tank 10 is a high-pressure valve, the gas can be discharged from the low-pressure air valve in time by taking the first settling tank 5 as a primary filter tank of original mixed liquid, so that the capacity of the liquid is larger, the air pressure valve 8 on the second settling tank 10 is a high-pressure valve, most of the gas is discharged through the air pressure valve 8 on the first settling tank 5, so that less gas is generated in the second settling tank 10, when the liquid is treated in the second settling tank 10, the internal pressure can be larger, and the water-oil separation is quicker.
The further improvement is that a pressure sensor 4 is further arranged on one side of the first settling tank 5 and one side of the second settling tank 10, the pressure sensor 4 is arranged on the liquid outlet pipeline 14, and the liquid outlet pipeline 14 is controlled to open and close through the pressure sensor 4.
When the liquid outlet pipeline 14 is switched between open and closed states, the liquid level meter 3 of the water in the settling tank monitors the liquid level and the pressure sensor 4 of the mixed liquid switches the flow, for example, when the liquid level of the water in the second tank is measured by the liquid level meter and the liquid is about to be infused, and meanwhile, when the pressure monitoring instrument monitors that the pressure of the settling tank is reduced to 0.4MPa, the first centrifugal pump 12 is intelligently started to start reverse infusion, and meanwhile, the liquid outlet pipeline 14 is closed to enter a switching flow state.
In a further improvement, each pipeline communicated with the first settling tank 5 and the second settling tank 10 is provided with a one-way valve 15, the first settling tank 5 and the second settling tank 10 are provided with a safety valve 2, one end of the safety valve 2 is communicated with the liquid outlet pipeline 14, and the liquid in the first settling tank 5 and the second settling tank 10 can be directly conveyed into the liquid outlet pipeline 14 through the safety valve 2.
Through the liquid or the gaseous flow direction of business turn over on check valve 15 can effectual control first settling cask 5 and the second settling cask 10, avoid appearing the problem of backward flow, simultaneously, still install relief valve 2 on the liquid pipeline 14, first settling cask 5 and second settling cask 10 are connected with liquid pipeline 14 through relief valve 2, the output of relief valve 2 is located liquid pipeline 14 switching valve's back, when first settling cask 5 andor second settling cask 10 pressure is too big, can directly carry out outside discharge liquid in liquid pipeline 14 with liquid input through opening relief valve 2, thereby alleviate internal pressure, avoid first settling cask 5 or second settling cask 10 to produce the explosion.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art on the basis of the present invention are all within the protection scope of the present invention.
Claims (6)
1. A multiphase fluid mixed transportation water-gas separation device is characterized in that: including first settling cask, second settling cask, feed liquor pipeline, liquid outlet pipeline, first outlet duct, second outlet duct and second outlet pipe, first outlet duct and first outlet pipe set up respectively the top and the bottom of first settling cask, the second outlet duct with the second outlet pipe sets up respectively the top and the bottom of second settling cask, the one end of feed liquor pipeline is located respectively first settling cask with the top of second settling cask, the one end of liquid outlet pipeline is established first settling cask with the lower extreme of second settling cask, first settling cask with still be equipped with first centrifugal pump and second centrifugal pump between the second settling cask, through feed liquor pipeline carries first settling cask with the mixed liquid in the second settling cask forms the form distribution that gas and water down is natural gas, crude oil and water in proper order after the nature layering in the corresponding settling cask and the second settling cask is outside the water injection mixed liquid separation of second settling cask is carried out the water injection and is carried out to the mixed liquid separation of second settling cask through the water outlet pipe and the first settling cask and the second mixing centrifugal pump outside the crude oil is carried out to the water injection and is carried out to the mixed liquid separation of first settling cask.
2. The water-gas separation device for multiphase fluid mixture transportation according to claim 1, wherein: the first settling tank and the second settling tank are respectively provided with a liquid level meter, and the liquid level height in the first settling tank and the second settling tank can be monitored through the corresponding liquid level meters.
3. The water-gas separator for multiphase fluid transportation according to claim 2, wherein: the first air outlet pipe and the second air outlet pipe are respectively provided with a pneumatic valve, and the natural gas in the first settling tank and the second settling tank is discharged outwards after being opened through the pneumatic valves.
4. The water-gas separation device for multiphase fluid mixture transportation according to claim 3, wherein: the pneumatic valve on the first settling tank is a low-pressure valve, and the pneumatic valve on the second settling tank is a high-pressure valve.
5. The water-gas separation device for multiphase fluid mixture transportation according to claim 1, wherein: and pressure sensors are further arranged on one sides of the first settling tank and the second settling tank and are arranged on the liquid outlet pipeline, and the liquid outlet pipeline is controlled to be opened and closed through the pressure sensors.
6. The water-gas separation device for multiphase fluid mixture transportation according to claim 1, wherein: and one-way valves are arranged on pipelines communicated with the first settling tank and the second settling tank, the first settling tank and the second settling tank are respectively provided with a safety valve, one end of each safety valve is communicated with the liquid outlet pipeline, and liquid in the first settling tank and the second settling tank can be directly conveyed into the liquid outlet pipeline through the safety valves.
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| CN202221448974.2U CN217661665U (en) | 2022-06-10 | 2022-06-10 | Multiphase fluid mixed transportation water-gas separation device |
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| CN202221448974.2U CN217661665U (en) | 2022-06-10 | 2022-06-10 | Multiphase fluid mixed transportation water-gas separation device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823130A (en) * | 2024-03-04 | 2024-04-05 | 山东沁雅能源科技有限责任公司 | Oil-gas-water three-phase metering device and metering method for oil well |
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2022
- 2022-06-10 CN CN202221448974.2U patent/CN217661665U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117823130A (en) * | 2024-03-04 | 2024-04-05 | 山东沁雅能源科技有限责任公司 | Oil-gas-water three-phase metering device and metering method for oil well |
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