CN209894640U - Oil gas water multiphase pipe flow pressure drop characteristic testing device - Google Patents
Oil gas water multiphase pipe flow pressure drop characteristic testing device Download PDFInfo
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- CN209894640U CN209894640U CN201920707834.4U CN201920707834U CN209894640U CN 209894640 U CN209894640 U CN 209894640U CN 201920707834 U CN201920707834 U CN 201920707834U CN 209894640 U CN209894640 U CN 209894640U
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Abstract
The utility model discloses a heterogeneous duct flow pressure drop characteristic test device of oil gas water, device adopt the oil water blending tank to combine electric agitator, defeated pump circulation's of mixing mode preparation even, stable oil water mixture. The oil-water mixture and the gas are respectively driven to a test pipeline by adopting a mixing and conveying pump and a compressor, and the gas-liquid separation is carried out through a gas-liquid separator, so that the separation flow test is realized. The three valves can be used for setting a flow across the gas-liquid separator, so that the non-separation flow test is realized. The tail of the loop is provided with a gas-liquid discharge valve and a collecting tank, so that one-time flow test can be realized. The gas separated by the gas-liquid separator is driven to the loop again by the compressor, so that the gas can be recycled. Compare with current heterogeneous pipe flow pressure drop testing arrangement, the utility model has the characteristics of gaseous used repeatedly, pollution-free, temperature controllable, separation flow test, disposable flow test, oil-water misce bene, rate of equipment utilization height, flow stably, the suitability is strong, the variability is high.
Description
Technical Field
The utility model belongs to the technical field of heterogeneous stream, especially, relate to a heterogeneous pipe flow pressure drop characteristic test device of oil gas water.
Background
Multiphase flow refers to the phenomenon of flow of a mixture containing two or more phases and having defined phase boundaries. The problem of multiphase flow is spread over a large number of industrial fields, such as oil and gas chemistry, nuclear industry, aerospace industry, geothermal engineering and bioengineering. In the oil and gas industry, multiphase flow technology has wide application in the fields of oil and gas production and transportation, where oil, gas and water multiphase pipe transportation is an important process step. The oil-gas-water three-phase flow widely exists in the oil and natural gas exploitation and transportation processes, the oil-gas-water three-phase physical properties are different, a determined phase interface exists when the oil-gas-water three-phase physical properties flow together, and during transportation, an oil-gas-water mixture exploited by an oil well is transported in a horizontal pipe in a multiphase mixed transportation mode from a wellhead to an oil transfer station. The flow mechanism of oil-gas-water three-phase flow is very complex, and the main reason is that the emulsification degree of oil-water mixture is variable and the emulsification degree is different under different water contents. Nowadays, most scholars study oil-gas two-phase or water-gas two-phase, and the study on oil-gas-water three-phase flow is not deep enough. The influence of different factors on the pressure drop characteristic of the multiphase flow is researched, the research on the action mechanism of the multiphase flow is facilitated, the establishment of a proper mathematical model is facilitated, and meanwhile, the method has important significance on the economic design and safe and stable operation of the oil field gathering and transportation pipeline.
To measure the pressure drop characteristics of oil-gas-water three-phase flow, wang national organ, et al proposed an oil-gas-water three-phase flow testing device (wang national organ, zhao, horizontal tube oil-gas-water three-phase flow pressure drop characteristic experimental study [ J ]. oil-gas field ground engineering, 2016,35(3): 27-30.). The centrifugal water pump is adopted to drive the oil-water mixture and the compressor to drive air, the air and the oil-water mixture are mixed through the tee joint and enter the experiment pipeline for testing, and the tested oil-gas-water three-phase flow flows back to the oil-water mixing tank. The main problems of the method are that the gas cannot be reused because the gas is not recycled, the gas is not recycled when the gas is air, but the gas has the problems of low gas utilization rate, increased cost, environmental pollution and the like when the gas is other gases such as natural gas and the like. The device can only be used for a one-time flowing test flow, the phenomenon of unstable flowing is easy to occur, the change of different test flows can not be carried out according to specific test requirements, and the degree of variability is low. Meanwhile, the device can only be used for testing oil-gas-water three-phase flow at room temperature, cannot change the experiment temperature and has large limitation. The small circulation flow of the combination of the centrifugal pump and the bypass device is adopted for oil-water mixing, and the uniform mixing standard of oil and water cannot be achieved under certain conditions.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model aims at providing a gaseous used repeatedly, pollution-free, temperature is controllable, the separation flow test, disposable flow test, oil-water misce bene, rate of equipment utilization height, flow stable, the suitability is strong, the high multiphase pipe flow pressure drop characteristic testing arrangement of variable degree oil gas water.
The utility model discloses an oil-water mixing tank combines electric mixer, defeated pump endless mode to carry out the preparation of oil-water mixture, can guarantee that oil-water mixture is even, the oil-water emulsion is stable. The oil-water mixture and the gas are respectively driven to a test pipeline by adopting a mixing and conveying pump and a compressor, and the gas-liquid separation is carried out through a gas-liquid separator, so that the separation flow test is realized. The three valves can be used for setting a flow across the gas-liquid separator, so that the non-separation flow test is realized. The tail of the loop is provided with a gas-liquid discharge valve and a collecting tank, so that one-time flow test can be realized. The gas and the liquid separated by the gas-liquid separator can be driven to the loop again through the compressor and the mixing transmission pump, so that the gas can be recycled, and the pollution of the gas to the environment is avoided.
The utility model discloses specific technical scheme as follows:
a device for testing the pressure drop characteristics of oil, gas and water multiphase pipe flows comprises an oil-water mixing tank, a water bath, a ball valve I, a ball valve II, a ball valve III, a mixing pump, a first mass flow meter, a ball valve IV, a ball valve V, a ball valve VI, a compressor, a gas flow meter, a ball valve VII, a mixer, a second mass flow meter, a first temperature sensor, a first pressure sensor, a second temperature sensor, a second pressure sensor, a third temperature sensor, a fourth pressure sensor, a fourth temperature sensor, an air bath, a ball valve VIII, a ball valve VII, a gas-liquid discharge valve, a collecting tank and a gas-liquid separator; the outer layer of the oil-water mixing tank is provided with a jacket; the water bath is connected with an outer jacket of the oil-water mixing tank; the lower part of the oil-water mixing tank is connected with a ball valve I; the mixing and conveying pump is connected with the ball valve I through a ball valve III; a pipeline between the first ball valve and the third ball valve is connected with the second ball valve; the first mass flow meter is connected with an outlet of the mixing and conveying pump; the first mass flow meter is connected with the ball valve V; a pipeline between the first mass flow meter and the ball valve V is connected with the ball valve IV; the ball valve IV is connected with the upper part of the oil-water mixing tank and can guide the oil-water mixture to flow back to the oil-water mixing tank; the ball valve five is connected with the mixer; the mixer is connected with the second mass flow meter; the second mass flowmeter test pipeline is connected; the tail part of the test pipeline is divided into two pipelines, one pipeline is connected with the ball valve eight, and the other pipeline is connected with the ball valve nine; the ball valve nine is connected with the upper part of the gas-liquid separator; the ball valve eight is connected with the ball valve II; a pipeline between the ball valve eight and the ball valve II is connected with a ball valve ten; the ball valve ten is connected with the lower part of the gas-liquid separator; a pipeline and a gas-liquid discharge valve are arranged between the ball valve II and the ball valve II; the gas-liquid discharge valve is connected with the collecting tank; one end of the ball valve six is connected with the upper part of the gas-liquid separator, and the other end of the ball valve six is connected with the compressor; the gas flowmeter is connected with the compressor; and one end of the ball valve seven is connected with the gas flowmeter, and the other end of the ball valve seven is connected with the mixer.
The first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the third temperature sensor, the fourth pressure sensor and the fourth temperature sensor are distributed along the test pipeline.
The first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the third temperature sensor, the fourth pressure sensor, the fourth temperature sensor and the test pipeline are arranged in the air bath.
Compared with the prior art, the invention has the following beneficial effects:
(1) the oil-water mixture is prepared by adopting the oil-water mixing tank, an electric stirrer and a mixing and conveying pump for circulation, so that uniform oil-water mixing and stable oil-water emulsion can be ensured.
(2) The oil-water mixture and the gas are respectively driven to an experimental pipeline by adopting a mixing transportation pump and a compressor, and the gas-liquid separation is carried out through a gas-liquid separator, so that the separation flow test is realized. The three valves can be used for setting a flow across the gas-liquid separator, so that the non-separation flow test is realized. The tail of the loop is provided with a gas-liquid discharge valve and a collecting tank, so that one-time flow test can be realized.
(3) The gas and the liquid separated by the gas-liquid separator can be driven to the loop again through the compressor and the mixing transmission pump, so that the gas can be recycled, and the pollution of the gas to the environment is avoided.
(4) The testing device has the characteristics of repeated use of gas, no pollution, controllable temperature, separation flow test, non-separation flow test, one-time flow test, uniform oil-water mixing, high equipment utilization rate, stable flow, strong applicability and high variability.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-an oil-water mixing tank; 2, water bath; 3-a ball valve I; 4-ball valve II; 5-ball valve III; 6-mixed transportation pump; 7-a first mass flow meter; 8-ball valve four; 9-ball valve five; 10-ball valve six; 11-a compressor; 12-a gas flow meter; 13-ball valve seven; 14-a mixer; 15-a second mass flow meter; 16-a first temperature sensor; 17-a first pressure sensor; 18-a second temperature sensor; 19-a second pressure sensor; 20-a third pressure sensor; 21-a third temperature sensor; 22-a fourth pressure sensor; 23-a fourth temperature sensor; 24-air bath; 25-ball valve eight; 26-ball valve nine; 27-ball valve ten; 28-gas liquid discharge valve; 29-a collection tank; 30-a gas-liquid separator; 31-test the pipe.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings by way of specific embodiments. The following is a more detailed description of the present invention taken in conjunction with specific preferred embodiments, and it is not intended that the present invention be limited to the specific embodiments described herein. For those skilled in the art, without departing from the spirit of the present invention, several simple deductions or substitutions may be made, which should be considered as belonging to the protection scope of the present invention.
As shown in fig. 1, the utility model discloses an oil water mixing tank 1, water bath 2, ball valve 3, ball valve two 4, ball valve three 5, defeated pump 6 mixes, first mass flow meter 7, ball valve four 8, ball valve five 9, ball valve six 10, compressor 11, gas flowmeter 12, ball valve seven 13, blender 14, second mass flow meter 15, first temperature sensor 16, first pressure sensor 17, second temperature sensor 18, second pressure sensor 19, third pressure sensor 20, third temperature sensor 21, fourth pressure sensor 22, fourth temperature sensor 23, air bath 24, ball valve eight 25, ball valve nine 26, ball valve ten 27, gas-liquid discharge valve 28, collection tank 29, gas-liquid separator 30, test tube 31.
An electric stirrer is arranged at the top of the oil-water mixing tank 1 and can stir fluid in the tank. The outer layer of the oil-water mixing tank 1 is provided with a jacket which is connected with the water bath 2 and can control the temperature in the oil-water mixing tank 1. The lower part of the oil-water mixing tank 1 is connected with a ball valve I3. The ball valve I3 is connected with the ball valve III 5. And a pipeline between the first ball valve 3 and the third ball valve 5 is connected with the second ball valve 4. And the inlet end of the mixing and conveying pump 6 is connected with the ball valve III 5 and is used for driving the oil-water mixture to the test pipeline 31. And the first mass flow meter 7 is connected with the outlet end of the mixing and conveying pump 6 and is used for metering the flow of the oil-water mixture. The first mass flow meter 7 is connected to a mixer 14 via a ball valve five 9. And a pipeline between the first mass flow meter 7 and the ball valve five 9 is connected with a ball valve four 8. The ball valve four 8 is connected with the upper part of the oil-water mixing tank 1, and the oil-water mixture can be guided into the oil-water mixing tank 1 by adjusting the on-off states of the ball valve four 8, the ball valve five 9 and the ball valve two 4, so that the oil-water mixture can be prepared in a small circulation manner. The second mass flow meter 15 is connected with the mixer 14 and is used for measuring the flow of the oil-gas-water mixture. The second mass flow meter 15 is connected to a test line 31. The first temperature sensor 16, the first pressure sensor 17, the second temperature sensor 18, the second pressure sensor 19, the third pressure sensor 20, the third temperature sensor 21, the fourth pressure sensor 22 and the fourth temperature sensor 23 are distributed along the test pipeline 31. The air bath 24 is provided with a test pipe 31, a first temperature sensor 16, a first pressure sensor 17, a second temperature sensor 18, a second pressure sensor 19, a third pressure sensor 20, a third temperature sensor 21, a fourth pressure sensor 22 and a fourth temperature sensor 23, and the temperature of the test pipe 31 can be controlled. The tail part of the test pipeline 31 is divided into two pipelines, one pipeline is connected with the ball valve eight 25, and the other pipeline is connected with the ball valve nine 26. The ball valve nine 26 is connected with the upper part of the gas-liquid separator 30, and can guide the oil-gas-water mixture into the gas-liquid separator 30 for gas-liquid separation, so that a separation flow test is realized. The ball valve eight 25 is connected with the ball valve two 4, so that a non-separation flow test can be realized. And a pipeline between the ball valve eight 25 and the ball valve two 4 is connected with a ball valve ten 27. Pipeline between eight 25 of ball valve and the ball valve two 4 links to each other with gas-liquid discharge valve 28, gas-liquid discharge valve 28 links to each other with collection tank 29, can realize disposable flow test in oil gas water mixture drains to collection tank 29 from test pipeline 31. The compressor 11 is connected with the upper part of the gas-liquid separator 30 through the ball valve six 10, and can drive the gas in the gas-liquid separator to the test pipeline 31, so that the recycling of the gas is realized. The gas flow meter 12 and the compressor 11 are used for metering gas flow. The gas flow meter 12 is connected to a mixer 14 via a ball valve seven 13.
The specific operation process of the utility model is explained as follows:
preparation of oil-water mixture or oil-water emulsion: a certain amount of crude oil and water are injected into the oil-water mixing tank 1, the water bath 2 is opened, and the temperature is set to the experimental temperature. And closing all valves, opening the ball valve I3, the ball valve III 5 and the ball valve IV 8, starting an electric stirrer and a mixing and transferring pump 6 at the top of the oil-water mixing tank 1, and finishing the preparation of an oil-water mixture or an oil-water emulsion after flowing for a certain time according to the experimental requirements.
Preparation of the experiment: the air bath 24 is opened, the temperature is set to the experimental temperature, and after a period of time, the temperature in the air bath 24 is stabilized to the experimental temperature. A predetermined amount of gas is injected into the gas-liquid separator 30.
Separation flow test: all valves are closed. And opening the ball valve I3, the ball valve III 5, the ball valve V9, the ball valve nine 26, the ball valve six 10 and the ball valve seven 13, starting the mixing and transportation pump 6 and the compressor 11, and driving the oil-water mixture and the gas into the test pipeline 31. When 10% of the fluid in the oil-water mixing tank 1 is remained, the second ball valve 4 and the tenth ball valve 27 are opened, and the first ball valve 3 is closed. And collecting data such as flow, pressure, temperature and the like after the flow is stable.
One-time flow test: all valves are closed. And opening the ball valve I3, the ball valve III 5, the ball valve V9, the ball valve eight 25, the gas-liquid discharge valve 28, the ball valve six 10 and the ball valve seven 13, starting the mixing and transportation pump 6 and the compressor 11, and driving the oil-water mixture and the gas into the test pipeline 31. And collecting data such as flow, pressure, temperature and the like after the flow is stable.
No separation flow test: all valves are closed. And opening the ball valve I3, the ball valve III 5, the ball valve V9, the ball valve eight 25, the gas-liquid discharge valve 28, the ball valve six 10 and the ball valve seven 13, starting the mixing and transportation pump 6 and the compressor 11, and driving the oil-water mixture and the gas into the test pipeline 31. And after the flow is stable, opening the second ball valve 4, and closing the compressor 11, the first ball valve 3, the gas-liquid discharge valve 28 and the seventh ball valve 13. And after the flow is stabilized again, collecting data such as flow, pressure, temperature and the like.
In conclusion, the oil-water mixture is prepared by adopting the oil-water mixing tank, the electric stirrer and the mixing and conveying pump for circulation, so that uniform oil-water mixing and stable oil-water emulsion can be ensured. The oil-water mixture and the gas are respectively driven to a test pipeline by adopting a mixing and conveying pump and a compressor, and the gas-liquid separation is carried out through a gas-liquid separator, so that the separation flow test is realized. The three valves can be used for setting a flow across the gas-liquid separator, so that the non-separation flow test is realized. The tail of the loop is provided with a gas-liquid discharge valve and a collecting tank, so that one-time flow test can be realized. The gas and the liquid separated by the gas-liquid separator can be driven to the loop again through the compressor and the mixing transmission pump, so that the gas can be recycled, and the pollution of the gas to the environment is avoided. The device has the characteristics of repeated use of gas, no pollution, controllable temperature, separation flow test, non-separation flow test, one-time flow test, uniform oil-water mixing, high equipment utilization rate, stable flow, strong applicability and high variability.
Claims (3)
1. A device for testing the pressure drop characteristics of oil-gas-water multiphase pipe flow is characterized by comprising an oil-water mixing tank, a water bath, a first ball valve, a second ball valve, a third ball valve, a mixed delivery pump, a first mass flow meter, a fourth ball valve, a fifth ball valve, a sixth ball valve, a compressor, a gas flow meter, a seventh ball valve, a mixer, a second mass flow meter, a first temperature sensor, a first pressure sensor, a second temperature sensor, a second pressure sensor, a third temperature sensor, a fourth pressure sensor, a fourth temperature sensor, an air bath, an eighth ball valve, a ninth ball valve, a tenth ball valve, a gas-liquid discharge valve, a collecting tank and a gas-liquid separator; the outer layer of the oil-water mixing tank is provided with a jacket; the water bath is connected with an outer jacket of the oil-water mixing tank; the lower part of the oil-water mixing tank is connected with a ball valve I; the mixing and conveying pump is connected with the ball valve I through a ball valve III; a pipeline between the first ball valve and the third ball valve is connected with the second ball valve; the first mass flow meter is connected with an outlet of the mixing and conveying pump; the first mass flow meter is connected with the ball valve V; a pipeline between the first mass flow meter and the ball valve V is connected with the ball valve IV; the ball valve IV is connected with the upper part of the oil-water mixing tank and can guide the oil-water mixture to flow back to the oil-water mixing tank; the ball valve five is connected with the mixer; the mixer is connected with the second mass flow meter; the second mass flowmeter test pipeline is connected; the tail part of the test pipeline is divided into two pipelines, one pipeline is connected with the ball valve eight, and the other pipeline is connected with the ball valve nine; the ball valve nine is connected with the upper part of the gas-liquid separator; the ball valve eight is connected with the ball valve II; a pipeline between the ball valve eight and the ball valve II is connected with a ball valve ten; the ball valve ten is connected with the lower part of the gas-liquid separator; a pipeline and a gas-liquid discharge valve are arranged between the ball valve II and the ball valve II; the gas-liquid discharge valve is connected with the collecting tank; one end of the ball valve six is connected with the upper part of the gas-liquid separator, and the other end of the ball valve six is connected with the compressor; the gas flowmeter is connected with the compressor; and one end of the ball valve seven is connected with the gas flowmeter, and the other end of the ball valve seven is connected with the mixer.
2. An oil-gas-water multiphase pipe flow pressure drop characteristic testing device according to claim 1, characterized in that: the first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the third temperature sensor, the fourth pressure sensor and the fourth temperature sensor are distributed along the test pipeline.
3. An oil-gas-water multiphase pipe flow pressure drop characteristic testing device according to claim 1, characterized in that: the first temperature sensor, the first pressure sensor, the second temperature sensor, the second pressure sensor, the third temperature sensor, the fourth pressure sensor, the fourth temperature sensor and the test pipeline are arranged in the air bath.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920707834.4U CN209894640U (en) | 2019-05-16 | 2019-05-16 | Oil gas water multiphase pipe flow pressure drop characteristic testing device |
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| CN201920707834.4U CN209894640U (en) | 2019-05-16 | 2019-05-16 | Oil gas water multiphase pipe flow pressure drop characteristic testing device |
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| CN209894640U true CN209894640U (en) | 2020-01-03 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049279A (en) * | 2021-02-28 | 2021-06-29 | 河北工业大学 | Vapor-liquid separation type medium-high temperature geothermal fluid experimental test system |
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2019
- 2019-05-16 CN CN201920707834.4U patent/CN209894640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113049279A (en) * | 2021-02-28 | 2021-06-29 | 河北工业大学 | Vapor-liquid separation type medium-high temperature geothermal fluid experimental test system |
| CN113049279B (en) * | 2021-02-28 | 2022-04-19 | 河北工业大学 | Vapor-liquid separation type medium-high temperature geothermal fluid experimental test system |
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Granted publication date: 20200103 Termination date: 20200516 |