CN216841611U - Oil-water-gas three-phase metering device based on density method - Google Patents
Oil-water-gas three-phase metering device based on density method Download PDFInfo
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- CN216841611U CN216841611U CN202220526915.6U CN202220526915U CN216841611U CN 216841611 U CN216841611 U CN 216841611U CN 202220526915 U CN202220526915 U CN 202220526915U CN 216841611 U CN216841611 U CN 216841611U
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Abstract
The utility model discloses an oil-water-gas three-phase metering device based on a density method, through a metering assembly, which comprises a three-way valve I, a three-way valve II, a measuring pipeline and a bypass pipeline, the lower end of the measuring pipeline is connected with the three-way valve I, the upper end of the measuring pipeline is connected with the three-way valve II, a liquid level meter is arranged in the measuring pipeline, the height of liquid is measured through the liquid level meter, a differential pressure transmitter is arranged on the measuring pipeline, the gravity difference generated by the liquid is measured through the differential pressure transmitter, the lower end of the bypass pipeline is connected with the three-way valve I, the upper end of the bypass pipeline is connected with the three-way valve II, a liquid inlet pipe is connected with the three-way valve I, a liquid outlet pipe is connected with the three-way valve II, a flowmeter is arranged on the liquid inlet pipe, the detection process is completed in the measuring pipeline, after oil-water-gas mixture enters the measuring pipeline from the liquid inlet pipe, the three-way valve I and the three-way valve II simultaneously close the measuring pipeline and open the bypass pipeline, not only realize static detection but also guarantee continuous oil transportation, and reduce the error of detection and measurement numerical value.
Description
Technical Field
The utility model belongs to three-phase metering device field especially relates to an profit gas three-phase metering device based on density method.
Background
In the process of oil exploitation, fluids produced from an oil well are water-containing crude oil and associated gas, a conventional metering separator is generally adopted to separate the liquid from the gas, the traditional volumetric type, electromagnetic type and the like are adopted to meter the produced liquid and the associated gas, a sample is extracted to calculate the water content, and then the yield of the crude oil is calculated, the patent document is published as CN 210798947U, and the document describes a single-well crude oil three-phase flow metering device.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: the oil-water-gas three-phase metering device is simple in structure, and can guarantee continuous oil transportation while static detection is achieved.
The utility model adopts the technical scheme as follows:
the utility model provides an profit gas three-phase metering device based on density method, includes feed liquor pipe, measurement subassembly and fluid-discharge tube, the measurement subassembly includes three-way valve one, two three-way valve, measurement pipeline and by pass line, measurement pipeline's lower extreme is connected with three-way valve one, and measurement pipeline's upper end and two three-way valve are connected, are provided with the level gauge in the measurement pipeline, are provided with differential pressure transmitter on the measurement pipeline, and by pass line's lower extreme is connected with three-way valve one, two three-way valve's upper end and two three-way valve are connected, the feed liquor pipe is connected with three-way valve one, and the fluid-discharge tube is connected with two three-way valve, is provided with the flowmeter on the feed liquor pipe.
The technical scheme is that a first flange is fixed on the upper portion of the liquid level meter, a second flange is arranged on the top of the measuring pipeline, and the first flange is connected with the second flange through bolts.
The further technical scheme is that the differential pressure transmitter is provided with two outer membrane boxes, and the two outer membrane boxes are respectively arranged at the upper part and the bottom of the measuring pipeline.
The further technical scheme is that the flowmeter is a spiral flowmeter.
The liquid inlet pipe, the measuring pipeline and the bypass pipeline are connected with the first three-way valve through flanges, and the liquid discharge pipe, the measuring pipeline and the bypass pipeline are connected with the second three-way valve through flanges.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
through a metering component which comprises a first three-way valve, a second three-way valve, a measuring pipeline and a bypass pipeline, wherein the lower end of the measuring pipeline is connected with the first three-way valve, the upper end of the measuring pipeline is connected with the second three-way valve, a liquid level meter is arranged in the measuring pipeline, the height of liquid is measured by a liquid level meter, a differential pressure transmitter is arranged on a measuring pipeline, the differential pressure transmitter is used for measuring the gravity difference generated by the liquid, the lower end of a bypass pipeline is connected with a first three-way valve, the upper end of the bypass pipeline is connected with a second three-way valve, a liquid inlet pipe is connected with the first three-way valve, a liquid discharge pipe is connected with the second three-way valve, a flowmeter is arranged on the liquid inlet pipe, the detection process is finished in the measuring pipeline, after an oil-water-gas mixture enters the measuring pipeline from the liquid inlet pipe, the first three-way valve and the second three-way valve close the measuring pipeline and open the bypass pipeline simultaneously, so that the continuous oil transportation is ensured while the static detection is realized, and the error of the detection and measurement numerical value is reduced.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1, an oil water gas three-phase metering device based on density method, including feed liquor pipe 1, measurement subassembly and fluid-discharge tube 2, the measurement subassembly includes three-way valve 3, two 4 of three-way valve, measurement pipeline 5 and by pass line 6, measurement pipeline 5's lower extreme is connected with three-way valve 3, and measurement pipeline 5's upper end is connected with two 4 of three-way valve, is provided with level gauge 7 in the measurement pipeline 5, is provided with differential pressure transmitter 8 on the measurement pipeline 5, and by pass line 6's lower extreme is connected with three-way valve 3, and by pass line 6's upper end is connected with two 4 of three-way valve, feed liquor pipe 1 is connected with one 3 of three-way valve, and fluid-discharge tube 2 is connected with two 4 of three-way valve, is provided with flowmeter 9 on the feed liquor pipe 1.
When the device is used, the height H of liquid is measured through the liquid level meter 7, the height H of the pipeline 5 is measured, the differential pressure transmitter 8 measures the gravity difference delta P generated by the liquid, and the flowmeter 9 measures the total flow V of the fluid in unit timeIn the aggregate of the above-mentioned processes,the oil-water-gas mixture flows into the metering device, firstly the flowmeter 9 measures the total flow of the fluid, then the mixture flows into the measuring pipeline 5, the three-way valve 3 and the three-way valve 4 act to close the measuring pipeline 5, the bypass pipeline 6 is opened to close the fluid in the measuring pipeline 5, the gas in the oil-water-gas mixture moves upwards and the liquid moves downwards under the action of gravity to separate the gas and the liquid, the liquid level meter 7 is used to measure the height of the liquid, the height of the measuring pipeline 5 is subtracted from the height of the liquid to obtain the height occupied by the gas, the ratio of the gas height to the measuring pipeline 5 is the gas-liquid ratio, the differential pressure transmitter 8 is used to measure the gravity difference generated by the liquid to calculate the oil-water ratio, the water-gas ratio, and finally the total flow of the total flow in unit time and the ratio of the oil, the water and the gas in unit time are used to calculate the oil, the water, the gas and the gas in unit time, The liquid amount, the gas amount, the average water content and the gas-liquid ratio are calculated as follows;
in the above formula, gamma-gas content and H-height, H-liquid level and delta P-liquid gravity difference of the measuring pipeline 5
g-gravitational acceleration, ρMixing of-oil-water mixture density, pOilOil density, pWater (W)-water density, μ -instantaneous water cut, substituting equation (2) into equation (3) to obtain:
in the above formula: vGeneral assembly-fluid flow rate in unit time, VQi (Qi)-gas flow, V, per unit timeLiquid for treating urinary tract infection-liquid flow rate per unit time, VOil-oil flow rate, V, per unit timeWater (W)-water flow, μ, per unit timeAverageAverage water content, theta-gas-liquid ratio.
By a metering assembly which comprises a first three-way valve 3, a second three-way valve 4, a measuring pipeline 5 and a bypass pipeline 6, the lower end of the measuring pipeline 5 is connected with the first three-way valve 3, the upper end of the measuring pipeline 5 is connected with the second three-way valve 4, a liquid level meter 7 is arranged in the measuring pipeline 5, the height of liquid is measured by the liquid level meter 7, a differential pressure transmitter 8 is arranged on the measuring pipeline 5, the gravity difference generated by the liquid is measured by the differential pressure transmitter 8, the lower end of the bypass pipeline 6 is connected with the first three-way valve 3, the upper end of the bypass pipeline 6 is connected with the second three-way valve 4, a liquid inlet pipe 1 is connected with the first three-way valve 3, a liquid outlet pipe 2 is connected with the second three-way valve 4, a flowmeter 9 is arranged on the liquid inlet pipe 1, the detection process is completed in the measuring pipeline 5, after an oil-water-gas mixture enters the measuring pipeline 5 from the liquid inlet pipe 1, the first three-way valve 3 and the second three-way valve 4 simultaneously close the measuring pipeline 5 and open the bypass pipeline 6, not only realize static detection but also guarantee continuous oil transportation, and reduce the error of detection and measurement numerical value.
A first flange 10 is fixed on the upper portion of the liquid level meter 7, a second flange 11 is arranged on the top of the measuring pipeline 5, and the first flange 10 is connected with the second flange 11 through bolts, so that the liquid level meter 7 is convenient to maintain and overhaul.
The flow meter 9 is a spiral flow meter 9.
The liquid inlet pipe 1, the measuring pipeline 5 and the bypass pipeline 6 are connected with a first three-way valve 3 through flanges, and the liquid discharge pipe 2, the measuring pipeline 5 and the bypass pipeline 6 are connected with a second three-way valve 4 through flanges.
The above is merely a preferred embodiment of the present invention.
Claims (5)
1. An oil-water-gas three-phase metering device based on a density method is characterized by comprising a liquid inlet pipe (1), a metering component and a liquid discharge pipe (2), the metering component comprises a first three-way valve (3), a second three-way valve (4), a measuring pipeline (5) and a bypass pipeline (6), the lower end of the measuring pipeline (5) is connected with the first three-way valve (3), the upper end of the measuring pipeline (5) is connected with the second three-way valve (4), a liquid level meter (7) is arranged in the measuring pipeline (5), a differential pressure transmitter (8) is arranged on the measuring pipeline (5), the lower end of the bypass pipeline (6) is connected with the first three-way valve (3), the upper end of the bypass pipeline (6) is connected with the second three-way valve (4), the liquid inlet pipe (1) is connected with the first three-way valve (3), the liquid discharge pipe (2) is connected with the second three-way valve (4), and a flowmeter (9) is arranged on the liquid inlet pipe (1).
2. The oil-water-gas three-phase metering device based on the density method is characterized in that a first flange (10) is fixed to the upper portion of the liquid level meter (7), a second flange (11) is arranged at the top of the measuring pipeline (5), and the first flange (10) is connected with the second flange (11) through bolts.
3. Oil, water and gas three-phase metering device based on density method according to claim 1, characterized in that the differential pressure transmitter (8) has two outer bellows (12), and the two outer bellows (12) are respectively arranged at the upper part and the bottom part of the measuring pipe (5).
4. A density method based oil, water and gas three-phase metering device according to claim 1, characterized in that the flow meter (9) is a spiral flow meter (9).
5. The oil-water-gas three-phase metering device based on the density method as recited in claim 1, wherein the liquid inlet pipe (1), the measuring pipeline (5) and the bypass pipeline (6) are all connected with a first three-way valve (3) through flanges, and the liquid outlet pipe (2), the measuring pipeline (5) and the bypass pipeline (6) are all connected with a second three-way valve (4) through flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220526915.6U CN216841611U (en) | 2022-03-11 | 2022-03-11 | Oil-water-gas three-phase metering device based on density method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220526915.6U CN216841611U (en) | 2022-03-11 | 2022-03-11 | Oil-water-gas three-phase metering device based on density method |
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| CN216841611U true CN216841611U (en) | 2022-06-28 |
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| CN202220526915.6U Active CN216841611U (en) | 2022-03-11 | 2022-03-11 | Oil-water-gas three-phase metering device based on density method |
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