CN202914076U - Single-well metering device - Google Patents
Single-well metering device Download PDFInfo
- Publication number
- CN202914076U CN202914076U CN 201220622108 CN201220622108U CN202914076U CN 202914076 U CN202914076 U CN 202914076U CN 201220622108 CN201220622108 CN 201220622108 CN 201220622108 U CN201220622108 U CN 201220622108U CN 202914076 U CN202914076 U CN 202914076U
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- gas
- communicated
- knockout drum
- cyclone separator
- separation tank
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Abstract
Disclosed is a single-well metering device. Opening diameter of two end openings of a diffuser pipe decreases, and the diffuser pipe is in a cone shape. A separation umbrella is arranged on the upper portion of an inner cavity of a separation tank. A cyclone separator is located on the top of the separation tank and penetrates through the separation umbrella and the separation tank, and the side portion of the cyclone separator is communicated with the diffuser pipe. A connecting opening on the top of the cyclone separator is communicated with a gas phrase pipeline. The gas phrase pipeline is communicated with a mixed liquid outlet through a gas flowmeter. The top of the separation tank is communicated with the gas phrase pipeline. An umbrella-shaped oil-gas separation board is arranged on the upper portion of the inner cavity of the separation tank and at the lower end of the cyclone separator. A high liquid level switch and a lower liquid level switch are arranged on the outer side wall of the separation tank. A pump is communicated on the bottom of the separation tank through a liquid phrase pipeline, and is communicated with the mixed liquid outlet through a mass flowmeter. The two level switches, the gas flowmeter, the mass flowmeter and the pump are respectively connected with a programmable logic controller (PLC) controlling system through cables. The single-well metering device is novel in design of operating principle, simple in structure, safe and reliable in operation, easy to operate and maintain, and capable of simultaneously carrying out on-line metering on oil, gas and water of mixed liquid produced by a single well of an oil filed.
Description
Technical field
The utility model 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 the field production management, measures accurately oil well is grasped the oil reservoir situation, formulates production decision, has important directive significance.With regard to the two-phase partition density method of Oilfield using, mainly be 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 the same well different time, its fluid is all different with the situation of giving vent to anger, even fluctuation is very large, therefore, often can not produce a desired effect.
Summary of the invention
In order to overcome the defective of prior art, the utility model provides a kind of novel single well metering device, can be applicable to widely range of flow, and gas-liquid two-phase is separated.
A kind of single well metering device is characterized in that, the bore of convergent divergent channel two-port dwindles, and is tapered; Knockout drum inner chamber top is provided with the separation umbrella, and cyclone separator is positioned at the top of knockout drum, passes and separates umbrella and knockout drum, and its sidepiece is communicated with convergent divergent channel; The top connector of cyclone separator is communicated with the gas phase pipeline; The gas phase device for cleaning pipeline is crossed gas flowmeter and is communicated with mixture export; The knockout drum top is communicated with the gas phase pipeline;
Lower end at the top of knockout drum inner chamber cyclone separator is provided with the umbellate form oil-gas separating plate;
Lateral wall at knockout drum is provided with high and low two liquid-level switches;
In the bottom of knockout drum, be communicated with pump by liquid pipe; Pump is communicated with mixture export by mass flowmenter;
Two liquid-level switches, gas flows are taken into account mass flowmenter, pump and are connected the PLC control system by cable respectively.
When the utility model was used, oil field individual well well head pipeline was communicated with the convergent divergent channel other end.Operating principle of the present utility model is, the first step, and the production fluid that comes from oil field individual well reduces pressure by convergent divergent channel, carries out the gas-liquid separation first time.Second step carries out the gas-liquid separation second time by cyclone separator.In the 3rd step, mixed liquor falls to clashing into the umbellate form oil-gas separating plate from the cyclone separator bottom and clashes into separation.The 4th step, adopt pump control tank internal pressure, when liquid level arrived high level switch, the PLC control system started pump automatically, extracted mixed liquor in the knockout drum out, relied on environment under low pressure, reduced gas solubility, and gas is fully separated; When liquid level arrived low liquid-level switch, the PLC control system stopped pump automatically, and the liquid level of knockout drum is by high and low liquid-level switch automatic controlling liquid level; The action in above-mentioned the 4th step is carried out repeatedly, reaches the purpose of gas, liquid separation.In the 5th step, gas is run into the separation umbrella in the process that rises, and the liquid particle cohesion in the gas is fallen, and further carries out gas-liquid separation.The 6th step, gas and liquid two parts are measured respectively, gas rises and enters the gas phase pipeline, measures by gas flowmeter; The liquid part is drawn into liquid pipe by pump, carries out flow and densitometry through mass flowmenter, accurately obtains the ratio of profit in the liquid, thereby finally reaches the accurate-metering of oil, gas, water.
Each instrument signal carries out acquisition and processing by the PLC TT﹠C system, obtains the related datas such as level switch signal in the knockout drum, individual well liquid outlet quantity, oil-containing, moisture, gassiness, temperature.
The utility model is when separating oil field individual well output mixed liquor, used that convergent divergent channel separation, cyclone pipe rotational flow separation, baffle plate bump separate, pump takes out pressure release and separates and separate umbrella and separate the structure that combines, overcome present popular single well metering device metering unstable, the shortcomings such as gas-liquid separation is not thorough, has range of flow wide, the advantage such as gas-liquid separation is thorough.
The utility model operating principle is novel in design, simple in structure, safe and reliable, Operation and Maintenance is simple, can be simultaneously oil, gas, the water of oil field individual well output mixed liquor be carried out respectively on-line metering.
By using the utility model single well metering device, can accurately enroll the various manufacturing parameters of oil field individual well, found out the production status of oil well, improved the oil well production managerial skills, solved for many years and measured the problem that exists at individual well or unit.
Description of drawings
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is top views of Fig. 1.
Accompanying drawing 3 is left views of Fig. 1.
1 convergent divergent channel, 2 cyclone separators, 3 umbellate form oil-gas separating plate, 4 knockout drums, 5 separate umbrella, 6 gas phase pipelines, 7 gas flowmeters, 81 high level switches, 82 low liquid-level switches, 9 pumps, 10 mass flowmenters, 11 content gauges, 12 PLC control systems, 13 liquid pipes, 14 pressure meters, 15 mixture exports, 16 drain valves, 17 safety valves.
The specific embodiment
A kind of single well metering device, the bore of convergent divergent channel 1 two-port dwindles, and is tapered; Knockout drum 4 inner chamber tops are provided with separates umbrella 5, and cyclone separator 2 is positioned at the top of knockout drum, passes and separates umbrella and knockout drum, and its sidepiece is communicated with convergent divergent channel; The top connector of cyclone separator is communicated with gas phase pipeline 6; The gas phase device for cleaning pipeline is crossed gas flowmeter 7 and is communicated with mixture export 15; The knockout drum top is communicated with the gas phase pipeline;
Lower end at the top of knockout drum inner chamber cyclone separator is provided with umbellate form oil-gas separating plate 3; Described umbrella shape Oil-gas Separation version surface is sawtooth pattern, can increase the striking face of mixed liquor.
Lateral wall at knockout drum is provided with high and low two liquid- level switches 81,82;
In the bottom of knockout drum, be communicated with pump 9 by liquid pipe 13; Pump is communicated with mixture export 15 by mass flowmenter 10;
Two liquid-level switches, gas flows are taken into account mass flowmenter, pump and are connected PLC control system 12 by cable respectively.
Be provided with pressure meter 14 and safety valve 17 on the top of knockout drum, be provided with content gauge 11 at the lateral wall of knockout drum.
Be provided with drain valve 16 in the bottom of knockout drum.
The specific works process: the production fluid that comes from oil field individual well enters convergent divergent channel 1 and carries out the gas-liquid separation first time, and after low-pressure gas-liquid separated for the first time, portion gas rose and enters gas phase pipeline 6; Remaining mixed liquor carries out the second time according to the physics centrifugal principle with gas mixture in cyclone separator 2 separates, and the portion gas of separating enters gas phase pipeline 6; Discharge from cyclone separator 2 bottoms through the residual mixed liquor after separating for the second time, fall to impacting umbellate form oil-gas separating plate 3, separate for the third time; Remaining mixed liquor falls to flowing into knockout drum 4, oil-containing particulate gas rises, and after liquid particle is run into separation umbrella 5, condenses in separating and carries out on the umbrella 5 separating for the 4th time, the portion gas rising is discharged by gas phase pipeline 6 after reaching certain pressure, and the gas of discharge measures through gas flowmeter 7; After residual mixed liquor body fluid face reaches high level switch 81 in the knockout drum, liquid-level switch 8 is opened, PLC control system 12 starts pump 9, mixing material is extracted out, rely on environment under low pressure, reduce gas solubility, gas is fully separated, the mixed liquor of extraction carries out flow measurement and density measure by mass flowmenter 10.When liquid level was reduced to low liquid-level switch 82, PLC control system 12 stopped pump 9, finishes whole metering process.The liquid level of container is by the signal of 12 pairs of liquid-level switch feedbacks of PLC control system pump to be controlled automatically, thereby controls liquid level, repeatedly reaches the purpose of gas, liquid separation.
Claims (5)
1. a single well metering device is characterized in that, the bore of convergent divergent channel two-port dwindles, and is tapered; Knockout drum inner chamber top is provided with the separation umbrella, and cyclone separator is positioned at the top of knockout drum, passes and separates umbrella and knockout drum, and its sidepiece is communicated with convergent divergent channel; The top connector of cyclone separator is communicated with the gas phase pipeline; The gas phase device for cleaning pipeline is crossed gas flowmeter and is communicated with mixture export; The knockout drum top is communicated with the gas phase pipeline;
Lower end at the top of knockout drum inner chamber cyclone separator is provided with the umbellate form oil-gas separating plate;
Lateral wall at knockout drum is provided with high and low two liquid-level switches;
In the bottom of knockout drum, be communicated with pump by liquid pipe; Pump is communicated with mixture export by mass flowmenter;
Two liquid-level switches, gas flows are taken into account mass flowmenter and are connected the PLC control system by cable respectively.
2. according to a kind of single well metering device claimed in claim 1, it is characterized in that, described umbellate form oil-gas separating plate surface is sawtooth pattern.
3. according to claim 1 or 2 described a kind of single well metering devices, it is characterized in that, be provided with pressure meter and safety valve on the top of knockout drum, be provided with content gauge at the lateral wall of knockout drum.
4. according to claim 1 or 2 described a kind of single well metering devices, it is characterized in that, be provided with drain valve in the bottom of knockout drum.
5. according to a kind of single well metering device claimed in claim 3, it is characterized in that, be provided with drain valve in the bottom of knockout drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622108 CN202914076U (en) | 2012-11-22 | 2012-11-22 | Single-well metering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220622108 CN202914076U (en) | 2012-11-22 | 2012-11-22 | Single-well metering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914076U true CN202914076U (en) | 2013-05-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220622108 Expired - Fee Related CN202914076U (en) | 2012-11-22 | 2012-11-22 | Single-well metering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914076U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471676A (en) * | 2013-09-13 | 2013-12-25 | 华北石油通信公司 | Unstable flow liquid online flow measuring device |
| CN103835696A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well metering device |
| CN106996289A (en) * | 2017-04-11 | 2017-08-01 | 江苏华尔威科技集团有限公司 | A kind of natural gas individual well multiphase flow metering equipment |
| CN107035357A (en) * | 2017-06-15 | 2017-08-11 | 上海诺仪表有限公司 | A kind of vehicle-mounted individual well multi-phase flow meter |
| CN107060729A (en) * | 2017-06-15 | 2017-08-18 | 上海诺仪表有限公司 | A kind of individual well multi-phase flow meter |
| CN107083952A (en) * | 2017-06-15 | 2017-08-22 | 上海诺仪表有限公司 | A kind of three-phase metering mechanism |
-
2012
- 2012-11-22 CN CN 201220622108 patent/CN202914076U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103835696A (en) * | 2012-11-22 | 2014-06-04 | 上海一诺仪表有限公司 | Single-well metering device |
| CN103471676A (en) * | 2013-09-13 | 2013-12-25 | 华北石油通信公司 | Unstable flow liquid online flow measuring device |
| CN106996289A (en) * | 2017-04-11 | 2017-08-01 | 江苏华尔威科技集团有限公司 | A kind of natural gas individual well multiphase flow metering equipment |
| CN107035357A (en) * | 2017-06-15 | 2017-08-11 | 上海诺仪表有限公司 | A kind of vehicle-mounted individual well multi-phase flow meter |
| CN107060729A (en) * | 2017-06-15 | 2017-08-18 | 上海诺仪表有限公司 | A kind of individual well multi-phase flow meter |
| CN107083952A (en) * | 2017-06-15 | 2017-08-22 | 上海诺仪表有限公司 | A kind of three-phase metering mechanism |
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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 |
Granted publication date: 20130501 Termination date: 20201122 |
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| CF01 | Termination of patent right due to non-payment of annual fee |