CN203847029U - Geothermal well flushing device - Google Patents
Geothermal well flushing device Download PDFInfo
- Publication number
- CN203847029U CN203847029U CN201420100012.7U CN201420100012U CN203847029U CN 203847029 U CN203847029 U CN 203847029U CN 201420100012 U CN201420100012 U CN 201420100012U CN 203847029 U CN203847029 U CN 203847029U
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- well
- oil pipe
- utility
- model
- geothermal
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Abstract
The utility model discloses a geothermal well flushing device which comprises an oil pipe. The oil pipe can extend into a well, an opening is formed in the bottom of the oil pipe, and an air compressor is connected to the upper end of the oil pipe by a gas injection pipeline. According to the scheme, the geothermal well flushing device has the advantages that high negative pressures can be instantly generated by reservoir fluid, so that a large quantity of reservoir fluid can flow into the well, and excellent well flushing effects can be realized.
Description
Technical field
The utility model relates to a kind of geothermal well well washing apparatus.
Background technology
Geothermal energy resources are subject to the attention of countries in the world in recent years, and international energy expert generally believes that expecting geothermal utilization in 2100 will account for 50%-80% in energy total value.Developed country all classifies geothermal energy resources as the alternative energy source of preferential development.
At present urgent for China is to want BADIRE to use as a kind of alternative energy source, compares with fire coal, oil equal energy source, and underground heat not only cleans but also can recycle and belongs to renewable resource.The underground water of deep layer has the circulating system of himself, and geothermal energy resources are inexhaustible, nexhaustible.
In During Process of Long-term Operation, water filtration is bad, adds that various sediments are back in sedimentation, and time one long well inside and outside wall silt and deposit too much result in blockage, and do not constitute natural circulation, affect system heat supply.Want to address this problem to only have well is cleaned.Facts have proved and adopt the well of geothermal heating system must clean for 2-3 years, otherwise can affect system heating effect.
Utility model content
The purpose of this utility model is to provide a kind of geothermal well well washing apparatus.
It is as follows that the utility model solves the problems of the technologies described above taked technical scheme:
A geothermal well well washing apparatus, comprising: stretch into the oil pipe in well, the bottom of described oil pipe is opening, and its upper end connects an air compressor machine by gas injection pipeline.
Further, a venting valve is established in the junction of oil pipe and waterflood-transmission line.
After the utility model has been taked such scheme, thereby can make the very large negative pressure of reservoir fluid moment generation that formation fluid is flowed in well in a large number, reach splendid well washing effect.
Other features and advantages of the utility model will be set forth in the following description, and, partly from manual, become apparent, or understand by implementing the utility model.The purpose of this utility model and other advantages can be realized and be obtained by specifically noted structure in the manual write, claims and accompanying drawing.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in detail, so that above-mentioned advantage of the present utility model is clearer and more definite.
Fig. 1 is the structural representation of the utility model geothermal well well washing apparatus.
The specific embodiment
Below in conjunction with specific embodiment, the utility model is described in detail.
As shown in Figure 1, be the structural representation of the utility model geothermal well well washing apparatus.
It mainly comprises: stretch into the oil pipe 5 of well interior 4, the bottom of described oil pipe 5 is opening, and its upper end connects air compressor machines 1 by gas injection pipeline 2.
Further, a venting valve 3 is established in the junction of oil pipe and waterflood-transmission line 2.
Wherein, 6 is gas motion direction, and 7 is the liquid direction of motion.
Its groundwork principle is as follows:
Oil pipe 5 is lowered into certain depth in well (1000m left and right), then oil pipe 5 is connected with air compressor machine 1, by oil pipe 5 to gas injection in well, with fluid column in gas column replacement well, thereby reduce head of liquid in well, make reservoir fluid pressure be greater than head of liquid in well, reservoir inner fluid flows in well, rinses the borehole wall simultaneously, carries sand setting.
Wherein, when gas column, lifting top fluid column rises to while to a certain degree making fluid column shorten to gradually the pressure that cannot bear gas column, can produce the effect that in the short time, large quantity of fluid, gas spray from well head, thereby make the very large negative pressure of reservoir fluid moment generation that formation fluid is flowed in well in a large number, reach splendid well washing effect.
The utility model needs equipment:
1. one of air compressor machine (requiring air inflow >=30m3/h, gas injection pressure >=15MPa); 2. gas injection pipeline (withstand voltage 25MPa); 3. oil pipe.
The operating procedure that it is concrete:
1. dilute mud in well, make mud in well there is good mobility;
2. be lowered to oil pipe to specifying well depth (fixed according to the actual conditions of well, generally in well depth 1000m left and right); 3. connect air compressor machine;
4. open air compressor machine gaslift well-flushing, until well head water outlet sand content reaches one thousandth, can stop air compressor machine.
Advantage of the present utility model: 1. well-flushing speed is fast; 2. well washing effect is good.
Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although the utility model is had been described in detail with reference to previous embodiment, for a person skilled in the art, its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (2)
1. a geothermal well well washing apparatus, is characterized in that, comprising: stretch into the oil pipe in well, the bottom of described oil pipe is opening, and its upper end connects an air compressor machine by gas injection pipeline, air compressor machine by oil pipe to gas injection in well, with fluid column in gas column replacement well.
2. geothermal well well washing apparatus according to claim 1, is characterized in that, a venting valve is established in the junction of oil pipe and waterflood-transmission line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100012.7U CN203847029U (en) | 2014-03-06 | 2014-03-06 | Geothermal well flushing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100012.7U CN203847029U (en) | 2014-03-06 | 2014-03-06 | Geothermal well flushing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203847029U true CN203847029U (en) | 2014-09-24 |
Family
ID=51560063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100012.7U Expired - Fee Related CN203847029U (en) | 2014-03-06 | 2014-03-06 | Geothermal well flushing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203847029U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285475A (en) * | 2016-08-30 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of geothermal well thermal circulation method |
| CN117386310A (en) * | 2023-11-30 | 2024-01-12 | 河北恒祯新能源科技有限公司 | Geothermal well flushing sand cleaning device and method |
| CN117905461A (en) * | 2024-03-19 | 2024-04-19 | 山东宜美科节能服务有限责任公司 | Geothermal sampling device |
-
2014
- 2014-03-06 CN CN201420100012.7U patent/CN203847029U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106285475A (en) * | 2016-08-30 | 2017-01-04 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of geothermal well thermal circulation method |
| CN106285475B (en) * | 2016-08-30 | 2018-07-17 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | A kind of geothermal well thermal circulation method |
| CN117386310A (en) * | 2023-11-30 | 2024-01-12 | 河北恒祯新能源科技有限公司 | Geothermal well flushing sand cleaning device and method |
| CN117386310B (en) * | 2023-11-30 | 2024-04-16 | 河北恒祯新能源科技有限公司 | Geothermal well flushing sand cleaning device and method |
| CN117905461A (en) * | 2024-03-19 | 2024-04-19 | 山东宜美科节能服务有限责任公司 | Geothermal sampling 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 |
Granted publication date: 20140924 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |