CN212837617U - Dual-purpose double-layer pipe wellhead assembly for mining and irrigating and geothermal well - Google Patents
Dual-purpose double-layer pipe wellhead assembly for mining and irrigating and geothermal well Download PDFInfo
- Publication number
- CN212837617U CN212837617U CN202021416786.2U CN202021416786U CN212837617U CN 212837617 U CN212837617 U CN 212837617U CN 202021416786 U CN202021416786 U CN 202021416786U CN 212837617 U CN212837617 U CN 212837617U
- Authority
- CN
- China
- Prior art keywords
- pipe
- dual
- wellhead
- stop valve
- well
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Sewage (AREA)
Abstract
The utility model discloses a adopt and irritate dual-purpose double-deck pipe well head device and geothermal well, include: an inner tube and an outer tube; the outer pipe is sleeved on the inner pipe to form an annular channel between the outer pipe and the inner pipe, the inner pipe is connected with the inner pipe stop valve, and the annular channel is connected with the outer pipe stop valve; the pipeline of the inner pipe is used for water collecting and pumping channels, and the annular channel is used for recharging. The scheme can realize the switching of water extraction and recharging operation without lifting the pump, simultaneously reduces the operation procedures of lifting and lowering the pump and lightens the labor intensity; but also can satisfy the closed recharge under the recharge water liquid level, and avoid the reduction of the recharge quantity caused by air lock.
Description
Technical Field
The utility model belongs to the technical field of the geothermal well, more specifically relates to a adopt and irritate dual-purpose double-deck pipe well head device and geothermal well.
Background
With the further deepening and refining of geothermal exploitation, the problem of reduction of recharge quantity caused by blockage of a geothermal recharge well is a focus, and a raising mode can be adopted to effectively recover a stratum channel. The single-layer pipe of the existing wellhead device can only realize the one-way flow of fluid and cannot meet the dual technical requirements of water extraction and recharge, and the recharge outside the pipe is easy to suck air to form an air lock, so that the recharge quantity is reduced, the liquid level detection is distorted, and the dual technical requirements of water extraction and recharge cannot be met.
Therefore, the development of the dual-purpose double-layer pipe wellhead device for production and irrigation and the geothermal well is expected, the switching of water production and recharge operation is realized without pumping up, the pumping up and down operation procedures are reduced, the labor intensity is reduced, meanwhile, the sealed recharge under the liquid level can be met, and the reduction of the recharge quantity caused by air lock is avoided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a adopt and irritate dual-purpose double-deck pipe well head device and geothermal well through the double-deck pipe design, can realize not having played the pump and adopt water and the switching of recharging operation, has reduced down the pump operation procedure simultaneously, has alleviateed intensity of labour, can satisfy airtight recharging under the recharging liquid level again, avoids the air lock to cause the recharging volume to reduce.
In order to realize the above-mentioned purpose, the utility model provides a dual-purpose double-deck pipe well head device is irritated in adopting, include: an inner tube and an outer tube;
the outer pipe is sleeved outside the inner pipe to form an annular channel between the outer pipe and the inner pipe, the inner pipe is connected with an inner pipe stop valve, and the annular channel is connected with an outer pipe stop valve;
the pipeline of the inner pipe is used for water collection and pumping-back channels, and the annular channel is used for recharging.
Optionally, the inner pipe comprises a first pipe section and a second pipe section, and the first pipe section is connected with the second pipe section through a swivel joint;
the first pipe section and the second pipe section are arranged along the vertical direction, and the outer pipe is sleeved outside the first pipe section.
Optionally, a connecting screw thread is arranged on the pipe wall of the free end of the second pipe section and used for connecting the submersible pump.
Optionally, the system further comprises a main pipeline, a free end of the first pipe section is connected with the main pipeline through a water production connecting pipe, and one end of the annular channel, which faces the first pipe section, is connected with the main pipeline through a recharge connecting pipe;
the inner pipe stop valve is arranged between the water production connecting pipe and the main pipeline, and the outer pipe stop valve is arranged on the recharge connecting pipe.
Optionally, a pressure gauge and a temperature gauge are arranged on the main pipeline.
Optionally, the swivel joint is located inside the annular channel, and an outer pipe connecting flange is arranged at the bottom end of the outer pipe.
Optionally, still include the well head body, the well head body is the tube-shape, and the cover is located the outer tube is outside, the both ends of well head body are equipped with well head flange respectively, be equipped with the well cable sealing port on the lateral wall of well head body.
Optionally, the wellhead connecting flange at one end of the wellhead body is used for connecting a geothermal well, and a universal port is arranged on the wellhead connecting flange at the other end of the wellhead body.
Optionally, still include three way connection, three way connection includes first interface, second interface and third interface, first interface connection in general mouthful, install the level gauge on the second interface, be equipped with discharge valve on the third interface, be equipped with the exhaust stop valve in the third interface.
The utility model provides a geothermal well, include:
a well pipe having one end extending from the surface down into the geothermal water reservoir;
a submersible pump disposed below a liquid level in the geothermal water reservoir;
in the dual-purpose dual-layer pipe wellhead assembly for mining and irrigation, the inner pipe and the outer pipe extend into the geothermal water reservoir through the well pipe, the inner pipe is connected to the submersible pump, and the bottom end of the outer pipe is immersed under the liquid level of the geothermal water reservoir and is positioned above the submersible pump.
The beneficial effects of the utility model reside in that:
1. the dual-purpose double-layer pipe wellhead device for mining and irrigation adopts a double-layer pipe design, and when the stop valve of the outer pipe is closed and the stop valve of the inner pipe is opened, water mining or pumping-back operation can be realized; when the inner pipe stop valve is closed and the outer pipe stop valve is opened, the recharging operation can be realized; the purpose of switching the water production and the recharging operation without lifting the pump is realized, the operation procedures of lifting and lowering the pump are reduced, and the labor intensity is reduced.
2. The geothermal well realizes the purpose of switching between the pumping operation and the recharging operation without pumping by using the dual-purpose double-layer pipe well head device for pumping and recharging, reduces the pumping operation procedures, lightens the labor intensity, can prevent air from being brought in the recharging process when the external pipe is immersed under the liquid level and is used for recharging, avoids the recharging quantity from being reduced due to the formation of air lock, realizes the pressure balance in the well, and is convenient for continuous and stable dynamic monitoring of the liquid level; in non-operation seasons, inert gases such as nitrogen and the like can be injected into the well through the outer pipe to protect the well pipe.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic block diagram of a dual purpose production and irrigation dual-tubing wellhead in accordance with an embodiment of the present invention.
Fig. 2 shows a schematic block diagram of a geothermal well according to an embodiment of the invention.
Description of the reference numerals
1. An inner tube; 2. an outer tube; 3. an inner pipe stop valve; 4. an outer pipe stop valve; 5. a swivel joint; 6. connecting screw threads; 7. a main pipeline; 8. a water collecting connecting pipe; 9. recharging the connecting pipe; 10. a pressure gauge; 11. a thermometer; 12. the outer pipe is connected with a flange; 13. a wellhead body; 14. a wellhead connecting flange; 15. a well cable seal port; 16. a three-way joint; 17. a well pipe; 18. a submersible pump.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
The utility model discloses a adopt and irritate dual-purpose double-deck pipe wellhead assembly, include: an inner tube and an outer tube;
the outer pipe is sleeved outside the inner pipe to form an annular channel between the outer pipe and the inner pipe, the inner pipe is connected with an inner pipe stop valve, and the annular channel is connected with an outer pipe stop valve;
the pipeline of the inner pipe is used for water collecting and pumping channels, and the annular channel is used for recharging.
Specifically, the dual-purpose double-layer pipe wellhead device for mining and irrigation adopts a double-layer pipe design, and when the stop valve of the outer pipe is closed and the stop valve of the inner pipe is opened, water mining or pumping-back operation can be realized; when the inner pipe stop valve is closed and the outer pipe stop valve is opened, the recharging operation can be realized; the purpose of switching the water production and the recharging operation without lifting the pump is realized, the operation procedures of lifting and lowering the pump are reduced, and the labor intensity is reduced.
Alternatively, the inner pipe comprises a first pipe section and a second pipe section, and the first pipe section is connected with the second pipe section through a swivel joint;
the first pipe section and the second pipe section are arranged along the vertical direction, and the outer pipe is sleeved outside the first pipe section.
Particularly, the first pipe section is connected with the second pipe section through the rotary joint, so that the second pipe section can rotate independently, the submersible pump is convenient to connect, and the convenience of field operation is improved.
As an alternative, the pipe wall of the free end of the second pipe section is provided with a connecting screw thread for connecting the submersible pump.
Specifically, the inner pipe is connected with the submersible pump through screw threads, so that the annular space between the inner pipe and the outer pipe is ensured, and the downstream resistance of the reinjection water is reduced.
As an alternative, the system also comprises a main pipeline, wherein the free end of the first pipe section is connected with the main pipeline through a water production connecting pipe, and one end of the annular channel, which faces the first pipe section, is connected with the main pipeline through a recharge connecting pipe;
the inner pipe stop valve is arranged between the water collecting connecting pipe and the main pipeline, and the outer pipe stop valve is arranged on the recharge connecting pipe.
Specifically, when the outer pipe stop valve is closed and the inner pipe stop valve is opened, water collection or pumping operation can be performed through a connecting channel between the main pipeline and the inner pipe; when the inner pipe stop valve is closed and the outer pipe stop valve is opened, the recharging operation can be carried out through the connection of the main pipeline and the annular channel.
As an alternative, the main pipeline is provided with a pressure meter and a thermometer.
Alternatively, the swivel joint is located within the annular channel, and the bottom end of the outer tube is provided with an outer tube connecting flange.
Specifically, the outer pipe connecting flange can adjust the length of the outer pipe according to the liquid level height of the geothermal water, so that the end part of the outer pipe is immersed under the liquid level of the geothermal water reservoir.
As the alternative, still include the well head body, the well head body is the tube-shape, and the outer tube outside is located to the cover, and the both ends of well head body are equipped with well head flange respectively, are equipped with the well cable sealing port on the lateral wall of well head body.
Specifically, the wellhead body is used for being installed on the ground end of the well pipe and is connected with the end part of the well pipe through a wellhead connecting flange.
As an alternative scheme, the wellhead connecting flange at one end of the wellhead body is used for connecting a geothermal well, and the wellhead connecting flange at the other end of the wellhead body is provided with a universal port.
Specifically, the multifunctional universal interface with the stop valve is designed, so that the opening of a wellhead device is reduced, and certain contribution is made to cost reduction and efficiency improvement of geothermal energy.
As an alternative scheme, the liquid level meter further comprises a three-way joint, the three-way joint comprises a first interface, a second interface and a third interface, the first interface is connected to the universal port, a liquid level meter is installed on the second interface, an exhaust valve is arranged on the third interface, and an exhaust stop valve is arranged in the third interface.
Specifically, the second interface extends in a vertically upward direction; the third interface extends to the vertical direction after stretching out along the direction that is perpendicular to the second interface.
The second interface and the third interface can also be connected with other monitoring equipment except the liquid level meter and the exhaust valve according to requirements, so that one port is multipurpose.
The utility model also discloses a geothermal well, include:
a well pipe, one end of the well pipe extending from the ground surface downwards into the geothermal water reservoir;
the submersible pump is arranged below the liquid level in the geothermal water reservoir;
according to the dual-purpose double-pipe wellhead device for mining and irrigation, the inner pipe and the outer pipe extend into the geothermal water reservoir through the well pipe, the inner pipe is connected to the submersible pump, and the bottom end of the outer pipe is immersed under the liquid level of the geothermal water reservoir and located above the submersible pump.
Specifically, the geothermal well realizes the purpose of switching between the water production and the recharging operation without starting a pump by using the dual-purpose double-layer pipe well head device for the water production and the recharging, reduces the operation procedures of starting and stopping the pump, lightens the labor intensity, can prevent air from being brought in during the recharging operation when the outer pipe is immersed under the liquid level, avoids the recharging amount from being reduced due to the formation of an air lock, realizes the pressure balance in the well, and is convenient for continuous and stable dynamic monitoring of the liquid level; in non-operation seasons, inert gases such as nitrogen and the like can be injected into the well through the outer pipe to protect the well pipe.
Examples
FIG. 1 shows a schematic block diagram of a dual purpose production and irrigation dual-tubing wellhead of the present embodiment; fig. 2 shows a schematic configuration diagram of the geothermal well of the present embodiment.
As shown in fig. 1 and 2, one end of a well pipe 17 of the geothermal well extends downwards from the ground to a geothermal water reservoir, a submersible pump 18 is arranged below the liquid level in the geothermal water reservoir, one end of a well head body 13 is connected to the ground end of the well pipe 17 through a well head connecting flange 14, a universal port with the diameter of phi 40mm is arranged on the well head connecting flange 14 at the other end, the universal port is respectively connected with a liquid level meter and an exhaust valve through a three-way joint 16, and a well cable sealing port 15 is arranged on the side wall of the well head body 13;
the inner pipe 1 is a steel pipe with the diameter of 114mm, the outer pipe 2 is a steel pipe with the diameter of 180mm, the outer pipe 2 is sleeved outside the inner pipe 1, an annular channel is formed between the outer pipe 2 and the inner pipe 1, and the inner pipe 1 and the outer pipe 2 extend into the geothermal water reservoir through the wellhead body 13 and the well pipe 17; the inner pipe 1 comprises a first pipe section and a second pipe section, the first pipe section is connected with the second pipe section through a rotary joint 5, the free end of the second pipe section is connected with a submersible pump 18 through a connecting screw thread 6, the outer pipe 2 is sleeved outside the first pipe section, the bottom end of the outer pipe 2 is immersed under the liquid level of the geothermal water reservoir by 10m, and the rotary joint 5 is positioned in the annular channel;
the free end of first pipeline section is connected in main line 7 through adopting water connecting pipe 8, and annular channel's the one end towards first pipeline section is connected in main line 7 through recharge connecting pipe 9, and wherein, adopt and be equipped with inner tube stop valve 3 between water connecting pipe 8 and the main line 7, is equipped with outer tube stop valve 4 on the recharge connecting pipe 9, is equipped with manometer 10 and thermometer 11 on the main line 7.
The bottom end of the outer pipe 2 can be provided with an outer pipe connecting flange 12 for connecting an outer pipe extension section, so that the length of the outer pipe is adjusted according to the height of the geothermal water liquid level, and the end part of the outer pipe 2 is immersed under the liquid level of the geothermal water reservoir.
When the outer pipe stop valve 4 is closed and the inner pipe stop valve 3 is opened, water collection or pumping operation can be realized; when the inner pipe stop valve 3 is closed and the outer pipe stop valve 4 is opened, the recharging operation can be realized, and the switching of water production and recharging operation without a pump is realized. During recharging operation, the outer pipe is kept 10 meters below the immersed liquid level, air is prevented from being brought in during recharging, and the recharging quantity is prevented from being reduced due to air lock; in non-operation seasons, inert gases such as nitrogen and the like can be injected into the well through the outer pipe 2 to protect the well pipe.
The three-way joint 16 on the phi 40mm universal port of the well head can be connected with a liquid level meter and an exhaust valve with a stop valve according to requirements, so that one port can be used for multiple purposes.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. The utility model provides a dual-purpose double-deck pipe wellhead assembly is adopted and irritated which characterized in that includes: an inner tube and an outer tube;
the outer pipe is sleeved outside the inner pipe to form an annular channel between the outer pipe and the inner pipe, the inner pipe is connected with an inner pipe stop valve, and the annular channel is connected with an outer pipe stop valve;
the pipeline of the inner pipe is used for water collection and pumping-back channels, and the annular channel is used for recharging.
2. The dual-purpose production and irrigation dual-pipe wellhead assembly of claim 1, wherein the inner pipe comprises a first pipe section and a second pipe section, and the first pipe section and the second pipe section are connected through a swivel joint;
the first pipe section and the second pipe section are arranged along the vertical direction, and the outer pipe is sleeved outside the first pipe section.
3. A dual-purpose dual-pipe wellhead assembly for mining and irrigation as claimed in claim 2 wherein the pipe wall at the free end of the second pipe section is provided with a connecting screw thread for connecting a submersible pump.
4. A dual-purpose dual-pipe wellhead assembly for both mining and irrigation as claimed in claim 3 further comprising a main pipeline, the free end of the first pipe section being connected to the main pipeline by a water production connecting pipe, the end of the annular channel facing the first pipe section being connected to the main pipeline by a recharge connecting pipe;
the inner pipe stop valve is arranged between the water production connecting pipe and the main pipeline, and the outer pipe stop valve is arranged on the recharge connecting pipe.
5. A dual-purpose dual-pipe wellhead assembly for both mining and irrigation as claimed in claim 4 wherein a pressure gauge and a temperature gauge are provided on the main pipeline.
6. A dual purpose pipe wellhead assembly as claimed in claim 2 wherein the swivel joint is located within the annular passage and the bottom end of the outer pipe is provided with an outer pipe attachment flange.
7. The dual-purpose double-pipe wellhead assembly for mining and irrigating as claimed in claim 1, further comprising a wellhead body, wherein the wellhead body is cylindrical and is sleeved outside the outer pipe, two ends of the wellhead body are respectively provided with a wellhead connecting flange, and a side wall of the wellhead body is provided with a well cable sealing port.
8. The dual-purpose double-pipe wellhead assembly for mining and irrigation as claimed in claim 7, wherein the wellhead connecting flange at one end of the wellhead body is used for connecting a geothermal well, and a universal port is arranged on the wellhead connecting flange at the other end of the wellhead body.
9. The dual-purpose dual-pipe wellhead assembly for mining and irrigation of claim 8, further comprising a three-way joint, wherein the three-way joint comprises a first connector, a second connector and a third connector, the first connector is connected to the universal port, a liquid level meter is mounted on the second connector, an exhaust valve is arranged on the third connector, and an exhaust stop valve is arranged in the third connector.
10. A geothermal well, comprising:
a well pipe having one end extending from the surface down into the geothermal water reservoir;
a submersible pump disposed below a liquid level in the geothermal water reservoir;
a dual purpose production and irrigation dual pipe wellhead assembly according to any of claims 1 to 9 in which the inner and outer pipes extend through the well casing into the geothermal water reservoir, the inner pipe being connected to the submersible pump and the bottom end of the outer pipe being submerged below the level of the geothermal water reservoir and above the submersible pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021416786.2U CN212837617U (en) | 2020-07-17 | 2020-07-17 | Dual-purpose double-layer pipe wellhead assembly for mining and irrigating and geothermal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021416786.2U CN212837617U (en) | 2020-07-17 | 2020-07-17 | Dual-purpose double-layer pipe wellhead assembly for mining and irrigating and geothermal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212837617U true CN212837617U (en) | 2021-03-30 |
Family
ID=75118018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021416786.2U Active CN212837617U (en) | 2020-07-17 | 2020-07-17 | Dual-purpose double-layer pipe wellhead assembly for mining and irrigating and geothermal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212837617U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266296A (en) * | 2021-05-26 | 2021-08-17 | 中石化绿源地热能(陕西)开发有限公司 | Same-well mining and recharging wellhead system and mining and recharging method |
| CN114135246A (en) * | 2021-11-09 | 2022-03-04 | 中煤矿业集团有限公司 | Wellhead device of sandstone geothermal recharge well |
-
2020
- 2020-07-17 CN CN202021416786.2U patent/CN212837617U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113266296A (en) * | 2021-05-26 | 2021-08-17 | 中石化绿源地热能(陕西)开发有限公司 | Same-well mining and recharging wellhead system and mining and recharging method |
| CN114135246A (en) * | 2021-11-09 | 2022-03-04 | 中煤矿业集团有限公司 | Wellhead device of sandstone geothermal recharge well |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212837617U (en) | Dual-purpose double-layer pipe wellhead assembly for mining and irrigating and geothermal well | |
| CN103195470B (en) | Drilling construction Gas gathering-device | |
| CN206091920U (en) | Geothermal well is taken out and is irritated dual -purpose wellhead assembly | |
| CN201915930U (en) | Tee joint special for thermal recovery | |
| CN216586676U (en) | Novel outdoor water meter well | |
| CN213870475U (en) | Siphon drainage device | |
| CN204663484U (en) | A kind of submersible electric pump producing well automatic diverter valve | |
| CN212428938U (en) | Full-wrapping type comprehensive water-proof and drainage system for water-rich tunnel | |
| CN211146942U (en) | Recharge system after geothermal water utilization | |
| CN208294785U (en) | A kind of submersible pump drain system | |
| CN209385880U (en) | A kind of gas drainage pipeline attachment device | |
| CN201819432U (en) | Solar water heater water tank with draining function | |
| CN206418576U (en) | The non-maintaining floor drain apparatus of Novel stinking-proof | |
| CN202391461U (en) | Gas drainage tail-end system | |
| CN201265368Y (en) | Integral Y-shaped connector | |
| CN206815486U (en) | A kind of big water burst counter-slope tunnel three-level discharge structure | |
| CN220058045U (en) | Plugging-free precipitation well structure | |
| CN206545578U (en) | A kind of submerged pump | |
| CN105986619A (en) | Integral rainwater/waste water lifting pump station antifreeze device | |
| CN209243901U (en) | A kind of inlet water lifting pumps pipeline with anti-siphon | |
| CN216741389U (en) | Shield for underground electric pump pipe column | |
| CN215290567U (en) | Siphon reducer siphon | |
| CN212479544U (en) | Novel plunger pump suction-return manifold | |
| CN203570352U (en) | Drainage device used for gas pipeline | |
| CN204311996U (en) | Auxiliary liquid drainage device for pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |