CN203685155U - Single-well multiphase measuring device - Google Patents
Single-well multiphase measuring device Download PDFInfo
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- CN203685155U CN203685155U CN201320156876.6U CN201320156876U CN203685155U CN 203685155 U CN203685155 U CN 203685155U CN 201320156876 U CN201320156876 U CN 201320156876U CN 203685155 U CN203685155 U CN 203685155U
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Abstract
The utility model relates to a single-well multiphase measuring device. Two ends of an expanding pipe are respectively provided with a conical pipe; the diameter of the expanding pipe is greater than that of each conical pipe; one conical pipe is communicated with an inlet pipe; the other conical pipe is communicated with an outlet pipe; the outlet pipe is inserted into the upper part of a separation tank and forms an angle of 15 to 30 degrees with the horizontal line; the top of the expanding pipe is communicated with the separation tank through a communication pipe; the middle-upper part of an inner cavity of the separation tank is provided with an inverted conical cyclone separator; one end of a gas pipeline is communicated to the top of the separation tank; a gas flowmeter and a one-way valve are sequentially connected into the gas pipeline in serial, and the other end of the gas pipeline is an outlet; one end of a liquid pipeline is communicated to the bottom of the separation tank, a metal hose, a pump, a mass flowmeter and an electric valve are sequentially connected into the liquid pipeline in serial, and the other end is an outlet; the outlet of the gas pipeline is communicated with the liquid pipeline to form a mixed liquid outlet; a swirl surface of the cyclone separator is provided with a retaining tooth; the outer side wall of the separation tank is provided with a high liquid level switch and a low liquid level switch. By adopting the single-well multiphase measuring device, the oil, gas and water of the mixed liquid produced by a single well of an oil field can be respectively measured on line.
Description
Technical field
The present invention relates to the improvement to a kind of oil field individual well multi-phase flow meter.
Background technology
One-well metering is an important process in field production management, measures accurately oil well is grasped to oil reservoir situation, formulates production decision, has important directive significance.With regard to the two-phase partition density method of Oilfield using, be mainly to adopt cyclone separation device at present, utilize effect divided gas flow and the liquid of its centrifugal force.But this device is in actual use, because every mouthful of well, even same well different time, its fluid is all different with the situation of giving vent to anger, and even fluctuation is very large, therefore, often can not produce a desired effect.
Summary of the invention
In order to overcome the defect of prior art, the invention provides a kind of improved single well metering device, can be applicable to range of flow widely, and more thoroughly make gas-liquid two-phase separate.
A kind of single well metering device, is characterized in that, convergent divergent channel two ends are provided with cone-shaped tube; Convergent divergent channel diameter is greater than cone-shaped tube diameter; One end cone-shaped tube is communicated with inlet tube; Other end cone-shaped tube is communicated with outlet; Outlet injects knockout drum top, is the angle of downward 15 °～30 ° with horizon; Convergent divergent channel top is communicated with by communicating pipe with knockout drum; Knockout drum inner chamber middle and upper part is provided with inverted cone-shaped cyclone separator; Gas phase pipeline one end is communicated with the top of knockout drum; In gas phase pipeline, connect successively gas flowmeter and one way valve, the other end is outlet; Fluid pipeline one end is communicated with knockout drum bottom, in liquid pipe, connect successively metal hose, pump, mass flowmenter and motor operated valve, and the other end is outlet; Gas phase pipe outlet is communicated with and forms mixture export with liquid pipe outlet;
On the eddy flow face of cyclone separator, be provided with gear tooth;
On the lateral wall of knockout drum, be provided with high and low two liquid-level switches.
When the present invention applies, oil field individual well well head pipeline is communicated with the convergent divergent channel other end.Operating principle of the present invention is, the first step, and the production fluid that comes from oil field individual well reduces pressure by convergent divergent channel, carries out gas-liquid separation for the first time.Second step, carries out gas-liquid separation for the second time by cyclone separator, and the gear tooth on cyclone separator sprinkles gas and uses; The 3rd step, adopts pump control tank internal pressure, in the time that liquid level arrives high level switch, automatically starts pump, extracts mixed liquor in knockout drum out, relies on environment under low pressure, reduces gas solubility, and gas is fully separated; In the time that liquid level arrives low liquid-level switch, automatically stop pump, the liquid level of knockout drum is by high and low liquid-level switch automatic controlling liquid level; The action of above-mentioned the 3rd step is carried out repeatedly, reaches the object of gas, liquid separation.The 4th step, measures respectively gas and liquid two parts, and gas rises and enters gas phase pipeline, measures by gas flowmeter; Liquid part is drawn into liquid pipe by pump, carries out flow and densitometry through mass flowmenter, accurately obtains the ratio of profit in liquid, thereby finally reaches the accurate-metering of oil, gas, water.
The present invention is in separating oil field individual well output mixed liquor, use convergent divergent channel separation, cyclone pipe rotational flow separation, pump to take out pressure release and separated the structure combining, overcome current popular single well metering device metering unstable, the shortcomings such as gas-liquid separation is not thorough, there is range of flow wide, the advantage such as gas-liquid separation is thorough.
Operating principle modern design of the present invention, simple in structure, safe and reliable, Operation and Maintenance is simple, and the oil to oil field individual well output mixed liquor, gas, water carry out respectively on-line metering simultaneously.
By application single well metering device of the present invention, can accurately enroll the various manufacturing parameters of oil field individual well, find out the production status of oil well, improve oil well production managerial skills, solved the problem existing for many years in individual well or unit's metering.
Accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present invention.
Accompanying drawing 2 is top views of Fig. 1.
1 inlet tube, 2 convergent divergent channels, 3 communicating pipes, 4 knockout drums, 5 cyclone separators, 6 gas phase pipelines, 7 gas flowmeters, 8 mass flowmenters, 9 motor operated valves, 10 liquid pipes, 11 mixture exports, 12 pumps, 13 metal hoses, 14 safety valves, 15 one way valves, 161 high level switches, 162 low liquid-level switches 17 keep off tooth, 18 cone-shaped tubes, 19 outlets.
The specific embodiment
A kind of single well metering device, is characterized in that, convergent divergent channel 2 two ends are provided with cone-shaped tube 18; Convergent divergent channel diameter is greater than cone-shaped tube diameter; One end cone-shaped tube is communicated with inlet tube 1; Other end cone-shaped tube is communicated with outlet 19; Outlet injects knockout drum top, is the angle of downward 15 ° with horizon; Convergent divergent channel 2 tops are communicated with by communicating pipe 3 with knockout drum 4; Knockout drum 4 inner chamber middle and upper parts are provided with inverted cone-shaped cyclone separator 5; Gas phase pipeline 6 one end are communicated with the top of knockout drum 5; In gas phase pipeline, connect successively gas flowmeter 7 and one way valve 15, the other end is outlet; Fluid pipeline 10 one end are communicated with knockout drum bottom, in liquid pipe, connect successively metal hose 13, pump 12, mass flowmenter 8 and motor operated valve 9, and the other end is outlet; Gas phase pipe outlet is communicated with and forms mixture export 11 with liquid pipe outlet;
On the eddy flow face of cyclone separator 5, be provided with gear tooth 17;
On the lateral wall of knockout drum 4, be provided with high and low two liquid-level switches 161,162.
Between knockout drum sidepiece and fluid pipeline outlet, be provided with safety valve 14.
specific works process of the present invention: the production fluid that comes from oil field individual well enters convergent divergent channel 2 and carries out gas-liquid separation for the first time, after low-pressure gas-liquid separates for the first time, portion gas rises and enters gas phase pipeline 6; Remaining mixed liquor separates gas mixture for the second time according to physics centrifugal principle in cyclone separator 5, and liquid through gear tooth 17, when liquid knockout gear tooth is separated the gas being contained in liquid in eddy flow; The portion gas of separating enters gas phase pipeline 6; Residual mixed liquor after separating is for the second time discharged and is fallen to flowing into knockout drum 4 from cyclone separator 5 bottoms, and the gas of discharge measures through gas flowmeter 7; In knockout drum, residual mixed liquor body fluid face reaches after high level switch 161, liquid-level switch 161 is opened, start pump 12, open electrically operated valve 9 simultaneously, mixing material is extracted out, relied on environment under low pressure, reduce gas solubility, gas is fully separated, and the mixed liquor of extraction carries out flow measurement and density measure by mass flowmenter 8.In the time that liquid level is reduced to low liquid-level switch 162, liquid-level switch 162 is opened, and stops pump 12, closes electrically operated valve 9, completes whole metering process.Above-mentioned action reaches the object of gas, liquid separation repeatedly.
Claims (2)
1. a single well metering device, is characterized in that, convergent divergent channel two ends are provided with cone-shaped tube; Convergent divergent channel diameter is greater than cone-shaped tube diameter; One end cone-shaped tube is communicated with inlet tube; Other end cone-shaped tube is communicated with outlet; Outlet injects knockout drum top, is the angle of downward 15 °～30 ° with horizon; Convergent divergent channel top is communicated with by communicating pipe with knockout drum; Knockout drum inner chamber middle and upper part is provided with inverted cone-shaped cyclone separator; Gas phase pipeline one end is communicated with the top of knockout drum; In gas phase pipeline, connect successively gas flowmeter and one way valve, the other end is outlet; Fluid pipeline one end is communicated with knockout drum bottom, in liquid pipe, connect successively metal hose, pump, mass flowmenter and motor operated valve, and the other end is outlet; Gas phase pipe outlet is communicated with and forms mixture export with liquid pipe outlet;
On the eddy flow face of cyclone separator, be provided with gear tooth;
On the lateral wall of knockout drum, be provided with high and low two liquid-level switches.
2. according to single well metering device claimed in claim 1, it is characterized in that, between knockout drum sidepiece and fluid pipeline outlet, be provided with safety valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320156876.6U CN203685155U (en) | 2013-04-01 | 2013-04-01 | Single-well multiphase measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320156876.6U CN203685155U (en) | 2013-04-01 | 2013-04-01 | Single-well multiphase measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203685155U true CN203685155U (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320156876.6U Expired - Fee Related CN203685155U (en) | 2013-04-01 | 2013-04-01 | Single-well multiphase measuring device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203685155U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088621A (en) * | 2013-04-01 | 2014-10-08 | 上海一诺自动化工程有限公司 | Single-well multiphase metering device |
-
2013
- 2013-04-01 CN CN201320156876.6U patent/CN203685155U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104088621A (en) * | 2013-04-01 | 2014-10-08 | 上海一诺自动化工程有限公司 | Single-well multiphase metering device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 |