CN219993678U - Automatic dosing device for venturi nozzle of wellhead of gas well - Google Patents
Automatic dosing device for venturi nozzle of wellhead of gas well Download PDFInfo
- Publication number
- CN219993678U CN219993678U CN202321624247.1U CN202321624247U CN219993678U CN 219993678 U CN219993678 U CN 219993678U CN 202321624247 U CN202321624247 U CN 202321624247U CN 219993678 U CN219993678 U CN 219993678U
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- Prior art keywords
- pipeline
- dosing
- venturi nozzle
- wellhead
- gas
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- 239000003814 drug Substances 0.000 claims abstract description 29
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 8
- 230000002401 inhibitory effect Effects 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000005260 corrosion Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 3
- 230000000087 stabilizing effect Effects 0.000 abstract description 2
- 230000002349 favourable effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 35
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013043 chemical agent Substances 0.000 description 1
- 239000013530 defoamer Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Jet Pumps And Other Pumps (AREA)
Abstract
The utility model discloses an automatic dosing device of a venturi nozzle of a gas well wellhead, which comprises an air inlet pipeline connected with a wellhead pipeline, an air delivery pipeline connected with a gas collecting station and a dosing pipeline connected with a medicament tank, wherein a venturi nozzle device is arranged in the air inlet pipeline, and the throat part of the venturi nozzle device is connected with the dosing pipeline. According to the utility model, the throat of the venturi nozzle device is provided with holes, and the venturi nozzle device is sucked with the medicament through pressure difference by utilizing the principle that the venturi tube forms low pressure in the throat, so that the produced fluid and the medicament are mixed. The venturi nozzle device can reduce the influence of downstream gas transmission pressure on wellhead dosing (critical pressure ratio can reach 0.9), is favorable for stabilizing gas well liquid carrying, can automatically and uniformly dose without power supply and other power equipment, can achieve the purposes of timely defoaming, inhibiting hydrate generation, inhibiting corrosion, preventing wax and reducing viscosity, and reduces damage to gas transmission pipelines and downstream equipment.
Description
Technical Field
The utility model relates to the field of petroleum and natural gas exploitation, in particular to an automatic dosing device for a venturi nozzle of a wellhead of a gas well.
Background
When natural gas flows into the bottom of a gas well from a stratum and flows to the ground along a shaft, hydrate can be generated along with the change of pressure and temperature, scaling, corrosion, wax precipitation and other problems, the water content gradually rises after part of gas field development enters the middle and later stages, foam drainage gas production technology is needed to be adopted for production, and when foam exhaust well produced liquid is not thoroughly defoamed or the gas-liquid separation effect is poor, foam water is easily caused to flow into the downstream, so that the normal operation of equipment such as a dewatering sledge and the downstream gas supply quality are influenced. Therefore, various chemical agents such as defoamer, hydrate inhibitor and the like are required to be filled in a wellhead so as to achieve the purposes of timely defoaming, inhibiting generation of hydrate, inhibiting corrosion, preventing wax and reducing viscosity, and damage to gas pipelines and downstream equipment is reduced.
At present, most of the oil field dosing in China mainly adopts a manual mode or a dosing vehicle mode, when dosing is carried out on a wellhead, manual disposable dosing cannot continuously play a role, the effects of weather, roads and other environments can be further met, part of the wellhead cannot timely dose, the production efficiency is greatly reduced, meanwhile, the wellhead pressure of the part of the gas well is lower, and the downstream gas transmission pressure has a larger effect on the production of the wellhead. Therefore, the utility model adopts the venturi throat to open holes and is provided with the oil nozzle, and the influence of the downstream gas transmission pressure on the production of the shaft is reduced by utilizing the fluid pressure difference principle at two ends of the venturi structure (the critical pressure ratio can reach 0.9), so that the purposes of realizing automatic and uniform dosing, having high dosing mixing degree, stabilizing the liquid in the gas well and needing no power supply and other power equipment are achieved.
Disclosure of Invention
The utility model aims to solve the problems that when the wellhead is charged, manual disposable dosing cannot continuously play a role, the manual disposable dosing is influenced by the environment such as weather, roads, on-site power supply equipment and the like, meanwhile, the conveying pressure also influences wellhead production, and continuous, stable, automatic and uniform dosing cannot be realized, and the power supply is relied on.
In order to solve the technical problems, the utility model adopts the following technical scheme:
the utility model provides an automatic dosing device of a gas well wellhead Venturi tube oil nozzle, which comprises an air inlet pipeline connected with a wellhead pipeline, an air delivery pipeline connected with a gas collecting station and a dosing pipeline connected with a medicament tank, wherein a Venturi tube oil nozzle device is arranged in the air inlet pipeline, a throat of the Venturi tube oil nozzle device is provided with a hole and is connected with the dosing pipeline, and the air delivery pipeline is provided with a balance pipeline connected with the medicament tank.
The venturi nozzle device is in a shape of middle necking and two flaring ends, and is provided with two flaring ends and a necking end, the two flaring ends are in sealing connection with the inner wall of the liquid inlet pipeline, and a cavity is formed by the outer wall of the venturi nozzle device and the outer wall of the dosing pipeline and the inner wall of the air inlet pipeline.
Preferably, the air inlet pipeline and the air transmission pipeline are directly connected with a wellhead pipeline of a gas well and a gas collecting station pipeline.
Preferably, the dosing pipeline is provided with a one-way valve, and the joint is an inserted joint.
Preferably, the balance pipeline is connected with the gas transmission pipeline, and a filter screen and a one-way pressure balance valve are arranged in the balance pipeline.
Preferably, the medicament canister is provided with a pressure gauge and a level gauge.
The beneficial effects are that:
the automatic dosing device for the venturi nozzle of the gas well wellhead disclosed by the utility model does not need power supply equipment and manual dosing, can continuously, stably, automatically and uniformly dose, is suitable for the sites where a power supply cannot be connected and manual operation is inconvenient, and can be directly connected with a wellhead pipeline and a gas collecting station pipeline; the one-way valve is arranged on the dosing pipeline, so that liquid in the liquid inlet pipeline can be prevented from flowing into the medicament tank and the medicament can be prevented from flowing back; the plug-in connector enables the connection between the infusion pipeline and the dosing pipeline of the medicament tank to be more convenient and quicker; the medicament tank is connected with the gas transmission pipeline and is provided with a one-way pressure balance valve, so that the pressure in the medicament tank can be kept stable, and the medicament in the medicament tank is prevented from flowing into the gas transmission pipeline; the throat of the venturi nozzle device is provided with holes, and continuous, stable, automatic and uniform dosing can be realized by utilizing the principle of fluid pressure difference of a venturi structure.
The utility model designs the venturi nozzle for dosing, realizes automatic and uniform dosing of the low-pressure gas well medicament under the condition of no power supply, and has good application prospect and effect.
Description of the drawings:
FIG. 1 is a schematic diagram of an automatic dosing device for a venturi nozzle of a wellhead of a gas well;
in the figure: 1. a wellhead pipeline; 2. an air intake line; 3. a dosing pipeline; 4. a plug-in connector; 5. a venturi nozzle device; 6. a one-way valve; 7. a liquid level meter; 8. a dosing switch valve; 9. a medicament canister; 10. a pressure gauge; 11. balance lines; 12. gas transmission pipeline (connected with gas collecting station); 13. a filter screen; 14. a one-way pressure balancing valve; 15. a medicine supplementing port; 16. a switch valve; 17. and a medicine supplementing switch valve.
The specific embodiment is as follows:
the following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples
As shown in fig. 1, the utility model provides an automatic dosing device of a venturi nozzle of a gas well wellhead, which comprises an air inlet pipeline 2 connected with a gas wellhead pipeline 1, a gas transmission pipeline 12 connected with a gas collecting station and a dosing pipeline 3 connected with a medicament tank 9, namely in fig. 1, the left end of the air inlet pipeline 2 is connected with the gas wellhead pipeline 1, the right end of the air inlet pipeline 2 is connected with the gas transmission pipeline 12, the venturi nozzle throat inside the air inlet pipeline 2 is connected with the dosing pipeline 3, and the dosing pipeline 3 is connected with the medicament tank 9, so that medicaments in the medicament tank 9 are automatically and uniformly stabilized and are added into the air inlet pipeline 2 without a power supply.
Referring to fig. 1, a venturi nozzle device 5 is provided inside an intake pipe 2;
the venturi nozzle structure device 5 is provided with a hole at the throat and is connected with the dosing pipeline 3, the venturi nozzle structure device 5 is in a shape of a middle necking and two flaring ends, the venturi nozzle structure device is provided with two flaring ends and one necking end, the two flaring ends of the venturi nozzle structure device 5 are in sealing connection with the inner wall of the air inlet pipeline 2, the necking end of the venturi nozzle structure device 5 is connected with the dosing pipeline 3, and a cavity is formed by the outer wall of the venturi nozzle structure device 5 and the outer wall of the dosing pipeline 3 and the inner wall of the air inlet pipeline 2.
The gas pipeline 12 is provided with a balance pipeline 11 connected with the medicament tank 9, and a filter screen 13 and a one-way pressure balance valve 14 are arranged at the joint of the balance pipeline 11 and the gas pipeline 12, so that the pressure stability in the medicament tank 9 can be ensured, the gas in the gas pipeline 12 can be filtered, and the medicament in the medicament tank is prevented from flowing into the gas pipeline.
The plug-in connector 4, the one-way valve 6 and the switch valve 8 are sequentially arranged between the dosing pipeline 3 and the medicament tank 9, wherein the one-way valve 6 can prevent medicament from flowing back, and the plug-in connector 4 is more convenient to connect.
It will be apparent to those skilled in the art that various modifications and variations can be made to the present utility model without departing from the spirit or scope of the utility model. Thus, it is intended that the present utility model also include such modifications and alterations insofar as they come within the scope of the appended claims or the equivalents thereof.
Claims (4)
1. The utility model provides an automatic dosing device of gas well wellhead venturi glib, its characterized in that includes the air inlet pipeline that links to each other with the well head pipeline and the gas transmission pipeline that links to each other with the gas collecting station and the dosing pipeline that is connected with the medicament jar, the inside of air inlet pipeline sets up venturi glib device, the gas transmission pipeline is provided with the balance line that is connected with the medicament jar, dosing pipeline is connected with venturi glib device throat department.
2. The automatic dosing device for a venturi nozzle of a wellhead of a gas well according to claim 1, wherein two flaring ends of the venturi nozzle device are in sealing connection with the inner wall of the gas inlet pipeline, a throat is connected with the dosing pipeline, and a cavity is formed by the outer wall of the venturi nozzle device and the outer wall of the dosing pipeline and the inner wall of the gas inlet pipeline.
3. The automatic dosing device for the venturi nozzle of the wellhead of the gas well according to claim 1, wherein the throat of the venturi nozzle device is provided with an opening and is connected with a dosing pipeline, and the dosing pipeline is provided with a one-way valve.
4. The automatic dosing device for the venturi nozzle of the wellhead of the gas well, as recited in claim 1, wherein the balance pipeline is connected with the gas transmission pipeline, and a filter screen and a one-way pressure balance valve are arranged in the balance pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321624247.1U CN219993678U (en) | 2023-06-26 | 2023-06-26 | Automatic dosing device for venturi nozzle of wellhead of gas well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321624247.1U CN219993678U (en) | 2023-06-26 | 2023-06-26 | Automatic dosing device for venturi nozzle of wellhead of gas well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219993678U true CN219993678U (en) | 2023-11-10 |
Family
ID=88610265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321624247.1U Active CN219993678U (en) | 2023-06-26 | 2023-06-26 | Automatic dosing device for venturi nozzle of wellhead of gas well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219993678U (en) |
-
2023
- 2023-06-26 CN CN202321624247.1U patent/CN219993678U/en active Active
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