CN217877897U - Geothermal well liquid level measuring structure - Google Patents
Geothermal well liquid level measuring structure Download PDFInfo
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- CN217877897U CN217877897U CN202222223329.7U CN202222223329U CN217877897U CN 217877897 U CN217877897 U CN 217877897U CN 202222223329 U CN202222223329 U CN 202222223329U CN 217877897 U CN217877897 U CN 217877897U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/10—Geothermal energy
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Abstract
The utility model provides a geothermal well liquid level measuring structure, which comprises a geothermal well, a directional pipeline and a measuring component; the directional pipeline is arranged beside the geothermal well, and the lower end of the directional pipeline is communicated with the lower part of the liquid level of the geothermal well; the measuring component is arranged in the directional pipeline and used for measuring the liquid level in the directional pipeline to obtain the liquid level of the geothermal well. Therefore, in the process of measuring the liquid level of the geothermal well, the directional pipeline cannot influence the normal work of the measuring equipment, and the accuracy of the measured data is ensured; meanwhile, the ground air cannot enter the geothermal well, so that equipment corrosion and water pollution are avoided. The problem of among the prior art geothermal well liquid level measurement in-process obtain liquid level data distortion and air get into and cause equipment corrosion and water pollution in the pit is solved.
Description
Technical Field
The utility model relates to a geothermol power measurement field particularly, relates to a geothermol power well liquid level measurement structure.
Background
When the geothermal well is operated in a heating season, in order to prevent air or other harmful gases from entering the underground to pollute geothermal water, a well mouth and a ground pipeline are in a sealed connection state. In the operation process of the geothermal well, the underground water level needs to be monitored frequently, and in the mode, a conventional measuring line cannot be put into the underground, and the real data of the underground water level cannot be obtained.
In order to solve the problem, the underground liquid level measurement in the prior art scheme mainly adopts two modes: 1) Installing a sound wave liquid level meter at the position of a well head, reflecting the liquid level under the well through sound transmission, and calculating the liquid level under the well through receiving reflected sound waves; the method is usually interfered by other objects in the well, the reflected sound wave is not reflected from the liquid level, and the acquired data of the liquid level are usually distorted. 2) A small hole is formed in the position of a well head, a measuring line is lowered to measure the liquid level in the well, and at the moment, the ground air enters the well and is subjected to oxidation reaction with the liquid or equipment in the well, so that the corrosion of the equipment and the pollution of the water quality are caused; in addition, due to the existence of the pumping pipe column, the phenomenon of blocking exists in the process of lowering the measuring line.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a geothermal well liquid level measurement structure to at least, the liquid level data distortion and the air admission that acquire among the solution prior art geothermal well liquid level measurement process cause the problem of equipment corruption and water pollution in the pit.
The utility model provides a geothermal well liquid level measurement structure, include: a geothermal well; the directional pipeline is arranged beside the geothermal well, and the lower end of the directional pipeline is communicated with the lower part of the liquid level of the geothermal well; and the measuring component is arranged in the directional pipeline and used for measuring the liquid level in the directional pipeline to obtain the liquid level of the geothermal well.
Further, the wellhead of the geothermal well and the upper port of the directional pipeline are sealed.
Further, geothermal well liquid level measurement structure still includes: the first pressure gauge is arranged in the geothermal well and used for monitoring and acquiring the annular pressure in the geothermal well; and the second pressure gauge is arranged in the directional pipeline and used for monitoring and acquiring the annular pressure in the directional pipeline.
Further, geothermal well liquid level measurement structure still includes: and the pressure regulating device is communicated with the directional pipeline and is respectively connected with the first pressure gauge and the second pressure gauge, and the pressure regulating device is used for regulating the annular pressure in the directional pipeline so as to enable the annular pressure in the directional pipeline to be equal to the annular pressure in the geothermal well.
Further, geothermal well liquid level measurement structure still includes: and the communication pipeline is arranged between the geothermal well and the directional pipeline and is used for communicating the parts above the liquid level of the geothermal well and the directional pipeline.
Further, the measuring part is a measuring rope.
The utility model discloses a geothermal well liquid level measurement structure of technical scheme, including geothermal well, directional pipeline and measuring unit; the directional pipeline is arranged beside the geothermal well, and the lower end of the directional pipeline is communicated with the lower part of the liquid level of the geothermal well; the measuring component is arranged in the directional pipeline and used for measuring the liquid level in the directional pipeline to obtain the liquid level of the geothermal well. Therefore, in the process of measuring the liquid level of the geothermal well, the directional pipeline cannot influence the normal work of the measuring equipment, and the accuracy of the measured data is ensured; meanwhile, the ground air cannot enter the geothermal well, so that equipment corrosion and water pollution are avoided. The problem of among the prior art geothermal well liquid level measurement in-process obtain liquid level data distortion and air get into and cause equipment corrosion and water pollution in the pit is solved.
Drawings
The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:
fig. 1 is a schematic diagram of an alternative first geothermal well liquid level measurement configuration according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an alternative second geothermal well liquid level measurement configuration according to an embodiment of the present invention.
Wherein the figures include the following reference numerals:
10. a geothermal well; 20. orienting the pipeline; 30. a measuring part; 40. a first pressure gauge; 50. a second pressure gauge; 60. a pressure regulating device; 70. a communicating pipe; 80. a water pumping pipeline; 90. a submersible pump.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
According to the utility model, a geothermal well liquid level measuring structure is provided, as shown in fig. 1, comprising a geothermal well 10, a directional pipeline 20 and a measuring component 30; the directional pipeline 20 is arranged beside the geothermal well 10, and the lower end of the directional pipeline 20 is communicated with the lower part of the liquid level of the geothermal well 10; a measuring member 30 is arranged in the directional pipe 20, the measuring member 30 being used to measure the liquid level in the directional pipe 20 to obtain the liquid level of the geothermal well 10.
The geothermal well liquid level measurement structure of this embodiment is through seting up directional pipeline 20 with geothermal well 10 intercommunication each other, and geothermal well 10 constitutes a linker with directional pipeline 20, can obtain the liquid level of geothermal well 10 through the liquid level of indirect measurement directional pipeline 20. No pipeline or other obstacles exist in the directional pipeline, so that the normal work of the measuring equipment is not influenced, and the accuracy of the measured data can be ensured; in addition, the liquid level is measured through the directional pipeline, so that air can be prevented from entering the geothermal well, and equipment corrosion and water quality pollution are avoided. The problem of among the prior art geothermal well liquid level measurement in-process obtain liquid level data distortion and air get into and cause equipment corrosion and water pollution in the pit is solved.
In the specific implementation process, a water pumping pipeline 80 is arranged in the geothermal well 10, and a submersible pump 90 is arranged at the lower end of the water pumping pipeline 80, so that hot water is continuously pumped to the ground. The wellhead of the geothermal well 10 and the upper end opening of the directional pipeline 20 are sealed, the geothermal well 10 is completely sealed, the sealing cover of the directional pipeline 20 can be opened or closed, the sealing environment in the directional pipeline 20 can be ensured when the upper end opening of the directional pipeline 20 is closed, and the measuring component 30 can be put into the geothermal well when the upper end opening of the directional pipeline 20 is opened.
In the specific implementation process, the upper section of the directional pipeline 20 is a vertical pipeline, the lower section of the directional pipeline is an arc-shaped pipeline, and the vertical pipeline is communicated with the position below the liquid level of the geothermal well 10 through the arc-shaped pipeline. The vertical pipeline of upper segment is parallel to each other with geothermal well 10 to when guaranteeing to adopt the measuring rope to measure the liquid level, the measuring rope can smoothly explore the position of liquid level down. The directional pipeline is usually a small borehole, the diameter is small, and the requirement of measuring the water level is met. The geothermal well liquid level measurement structure of this embodiment has two kinds of different structures, and first geothermal well liquid level measurement structure is because the liquid level top of geothermal well 10 and directional pipeline 20 does not communicate each other, and when extracting hot water in the geothermal well 10, the annular pressure of both inside can the deviation appear to lead to the liquid level to appear the deviation, in order to guarantee liquid level monitoring's accuracy nature, need guarantee geothermal well 10 and directional pipeline 20's annular pressure keep balance. Further, the first geothermal well liquid level measurement structure further comprises a first pressure gauge 40, a second pressure gauge 50 and a pressure regulating device 60, wherein the first pressure gauge 40 is arranged in the geothermal well 10, and the first pressure gauge 40 is used for monitoring and acquiring annular pressure in the geothermal well 10; the second pressure gauge 50 is arranged in the directional pipe 20, and the second pressure gauge 50 is used for monitoring and acquiring the annular pressure in the directional pipe 20; the pressure regulating device 60 is communicated with the directional pipeline 20 and is respectively connected with the first pressure gauge 40 and the second pressure gauge 50, and when the pressure monitored by the first pressure gauge 40 and the second pressure gauge 50 is deviated, the annular pressure in the directional pipeline 20 is regulated through the pressure regulating device 60, so that the annular pressure in the directional pipeline 20 is equal to the annular pressure in the geothermal well 10. At this moment, the accuracy of liquid level monitoring can be guaranteed.
As shown in fig. 2, the second geothermal well liquid level measuring structure includes a communication pipe 70, and the communication pipe 70 is opened between the geothermal well 10 and the directional pipe 20 and communicates the geothermal well 10 and the portion above the liquid level of the directional pipe 20 with each other. The communication pipeline 70 keeps the annular pressure of the geothermal well 10 and the directional pipeline 20 balanced all the time; the accuracy of liquid level monitoring can be ensured.
Further, when actually measuring the liquid level, the measuring component 30 may be a measuring rope, and may also adopt a sound wave liquid level meter or other forms of liquid level meters.
The utility model discloses a geothermal well liquid level measurement structure can adopt following step to go on in concrete use:
s102: drilling a directional pipeline communicated with the geothermal well beside the geothermal well, wherein the communication point of the directional pipeline and the geothermal well is positioned below the liquid level of the geothermal well;
s104: sealing the wellhead of the geothermal well and the upper port of the directional pipeline;
s106: respectively monitoring and obtaining the annular pressure in the geothermal well and the annular pressure in the directional pipeline when the liquid level of the geothermal well is in a stable state;
s108: when the annular pressure in the geothermal well is equal to the annular pressure in the directional pipe, the liquid level in the geothermal well is obtained by measuring the liquid level in the directional pipe.
In the process of measuring the liquid level of the geothermal well, the geothermal well is communicated with the lower end of the directional pipeline to form a communicating vessel, and the directional pipeline is not provided with pipelines or other obstacles, so that the normal work of measuring equipment cannot be influenced, and the accuracy of measured data can be ensured; in addition, the liquid level is measured through the directional pipeline, so that air can be prevented from entering the geothermal well, and equipment corrosion and water quality pollution are avoided. The problem of among the prior art geothermal well liquid level measurement in-process obtain liquid level data distortion and air admission cause equipment corrosion and water pollution in the pit is solved.
In a specific implementation process, in step S102, when the directional pipe is drilled, the directional pipe may extend obliquely to a position below the liquid level of the geothermal well and communicate with the lower end of the geothermal well; the upper section of the directional pipeline can also be a vertical pipeline, the lower section of the directional pipeline is an arc-shaped pipeline, and the vertical pipeline is communicated with the position below the liquid level of the geothermal well through the arc-shaped pipeline. The directional pipeline is usually a small borehole, the diameter is small, and the requirement of measuring the water level is met.
In step S104, the wellhead of the geothermal well and the upper port of the directional pipeline are sealed to prevent ground air from entering the geothermal well, so as to avoid oxidation reaction with downhole liquid or equipment, and to avoid equipment corrosion and water quality pollution.
In step S106, when monitoring and obtaining the annular pressure in the geothermal well and the annular pressure in the directional pipeline, respectively arranging pressure gauges in the geothermal well and the directional pipeline; and respectively monitoring and acquiring the annular pressure in the geothermal well and the annular pressure in the directional pipeline through a pressure gauge.
In the process of extracting hot water from the geothermal well, the liquid level and the pressure in the geothermal well can be changed, and when the hot water is extracted to a certain degree, the liquid level of the geothermal well can be in a stable state, namely, the liquid level does not change up and down; when the annular pressure in the geothermal well is not equal to the annular pressure in the directional pipeline, in order to ensure the accuracy of the monitoring of the liquid level data, the pressure in the directional pipeline needs to be adjusted, so that the pressure in the geothermal well is balanced with the pressure in the directional pipeline. Specifically, after monitoring and acquiring the annular pressure in the geothermal well and the annular pressure in the directional pipe, if the annular pressure in the geothermal well is not balanced with the annular pressure in the directional pipe, as shown in fig. 2, the method for measuring the liquid level in the geothermal well of the embodiment further includes:
s107: adjusting the annular pressure in the directional pipeline through a pressure adjusting device arranged in the directional pipeline; and repeatedly monitoring and obtaining the annular pressure in the geothermal well and the annular pressure in the directional pipe until the annular pressure in the geothermal well is equal to the annular pressure in the directional pipe.
The utility model discloses a second geothermal well liquid level measurement structure can adopt following step to go on in concrete use:
s202: drilling a directional pipeline communicated with the geothermal well beside the geothermal well, wherein the communication point of the directional pipeline and the geothermal well is positioned below the liquid level of the geothermal well;
s204: sealing the wellhead of the geothermal well and the upper port of the directional pipeline;
s206: the geothermal well is communicated with the part above the liquid level of the directional pipeline through a communication pipeline arranged between the geothermal well and the directional pipeline; and measuring the liquid level in the directional pipeline to obtain the liquid level of the geothermal well.
The geothermal well of this embodiment geothermal well liquid level measurement structure and the part above the liquid level of directional pipeline communicate each other through the intercommunication pipeline to make geothermal well and directional pipeline internal pressure homogeneous phase equal at any time, consequently need not to measure the annular space pressure in geothermal well and the directional pipeline and adjust, measurement process is more convenient. In the process of measuring the liquid level of the geothermal well, the geothermal well is communicated with the lower end of the directional pipeline to form a communicating vessel, and the directional pipeline is not provided with pipelines or other obstacles, so that the normal work of measuring equipment cannot be influenced, and the accuracy of measured data can be ensured; in addition, the liquid level is measured through the directional pipeline, so that air can be prevented from entering the geothermal well, and equipment corrosion and water quality pollution are avoided. The problem of among the prior art geothermal well liquid level measurement in-process obtain liquid level data distortion and air get into and cause equipment corrosion and water pollution in the pit is solved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. A geothermal well liquid level measurement structure, comprising:
a geothermal well (10);
the directional pipeline (20) is arranged beside the geothermal well (10), and the lower end of the directional pipeline (20) is communicated with the position below the liquid level of the geothermal well (10);
a measuring component (30) arranged in the directional pipe (20), the measuring component (30) being used for measuring the liquid level in the directional pipe (20) to obtain the liquid level of the geothermal well (10).
2. A geothermal well liquid level measuring structure according to claim 1, characterized in that the wellhead of the geothermal well (10) and the upper port of the directional conduit (20) are sealed.
3. The geothermal well liquid level measurement structure of claim 2, further comprising:
the first pressure gauge (40) is arranged in the geothermal well (10), and the first pressure gauge (40) is used for monitoring and acquiring the annular pressure in the geothermal well (10);
and the second pressure gauge (50) is arranged in the directional pipeline (20), and the second pressure gauge (50) is used for monitoring and acquiring the annular pressure in the directional pipeline (20).
4. The geothermal well liquid level measurement structure of claim 3, further comprising:
and the pressure regulating device (60) is communicated with the directional pipeline (20) and is respectively connected with the first pressure gauge (40) and the second pressure gauge (50), and the pressure regulating device (60) is used for regulating the annular pressure in the directional pipeline (20) so as to enable the annular pressure in the directional pipeline (20) to be equal to the annular pressure in the geothermal well (10).
5. The geothermal well liquid level measurement structure of claim 1, further comprising:
and the communication pipeline (70) is arranged between the geothermal well (10) and the directional pipeline (20) and is used for communicating the parts of the geothermal well and the directional pipeline above the liquid level.
6. A geothermal well liquid level measuring structure according to claim 1, characterized in that the measuring member (30) is a measuring string.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222223329.7U CN217877897U (en) | 2022-08-23 | 2022-08-23 | Geothermal well liquid level measuring structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222223329.7U CN217877897U (en) | 2022-08-23 | 2022-08-23 | Geothermal well liquid level measuring structure |
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| CN217877897U true CN217877897U (en) | 2022-11-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2622297A (en) * | 2022-08-23 | 2024-03-13 | Sinopec Green Energy Geothermal Dev Co Ltd | Method and structure for measuring liquid level of geothermal well |
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- 2022-08-23 CN CN202222223329.7U patent/CN217877897U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2622297A (en) * | 2022-08-23 | 2024-03-13 | Sinopec Green Energy Geothermal Dev Co Ltd | Method and structure for measuring liquid level of geothermal well |
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