CN211648074U - Online monitoring and automatic sealing integrated system for gas extraction drilling and hole sealing quality - Google Patents
Online monitoring and automatic sealing integrated system for gas extraction drilling and hole sealing quality Download PDFInfo
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- CN211648074U CN211648074U CN202020197069.9U CN202020197069U CN211648074U CN 211648074 U CN211648074 U CN 211648074U CN 202020197069 U CN202020197069 U CN 202020197069U CN 211648074 U CN211648074 U CN 211648074U
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Abstract
The utility model relates to a gas extraction drilling hole sealing quality on-line monitoring and automatic sealing integrated system, which comprises a gas extraction pipeline and the like; one end of the gas extraction pipeline extends into the gas extraction drill hole, and two hole sealing plugs are sleeved on the gas extraction pipeline extending into the gas extraction drill hole; the hole sealing slurry storage device is used for storing available hole sealing slurry and is connected to a gas extraction drill hole between the two hole sealing plugs through a grouting pipeline, the pressure sensor is arranged in the gas extraction drill hole between the two hole sealing plugs, and the monitoring control host is used for hole sealing pressure monitoring and grouting control of the controllable grouting pump. The utility model discloses but wide application in the aspect of the high-efficient sealing of mine gas prevention and cure field gas drainage drilling developments, through the pressure variation of real-time on-line monitoring hole sealing thick liquid, can take automatically when unusual appearing in pressure and mend the thick liquid measure, realize gas drainage drilling hole sealing quality on-line monitoring and self-sealing, guarantee the stability of hole sealing quality, guarantee gas drainage effect.
Description
Technical Field
The utility model belongs to mine gas prevention and cure field, concretely relates to gas drainage drilling hole sealing quality on-line monitoring and automatic sealing integration system.
Background
The sealing of the gas extraction drill hole is a key link of an extraction process, and the quality of the sealing effect directly influences the gas extraction effect. At present, the conventional 'two-plugging one-injecting' method is mostly adopted for sealing the drill hole, and after hole sealing is completed, the hole sealing section of the drill hole is affected by mining disturbance, so that instability and damage are easily caused, a gas leakage channel is formed, and the gas extraction efficiency is greatly reduced. On the one hand, the method is lack of a hole sealing quality on-line real-time detection means, and the change of hole sealing stability can not be timely mastered and judged; on the other hand, the method is lack of automatic maintenance means of hole sealing quality, and when the quality problem occurs in hole sealing, automatic slurry supplementing and sealing compensation measures cannot be taken at the first time. Therefore, the dynamic sealing of the gas extraction drill hole is a key technical problem which needs to be solved urgently at present.
SUMMERY OF THE UTILITY MODEL
The utility model aims to remedy the not enough of current gas drainage drilling sealing technique, provide a gas drainage drilling hole sealing quality on-line monitoring and self-sealing integration system, can realize that the real-time supervision of the sealed effect of drilling judges and automatic secondary compensation is sealed.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the system comprises a pressure sensor, a signal cable, a monitoring control host, a hole sealing slurry storage device, a controllable grouting pump, a grouting pipeline and a gas extraction pipeline; wherein the content of the first and second substances,
one end of the gas extraction pipeline extends into the gas extraction drill hole and is used for extracting gas in the gas extraction drill hole, and two hole sealing plugs are sleeved on the gas extraction pipeline extending into the gas extraction drill hole;
the hole sealing slurry storage device is used for storing available hole sealing slurry, is connected to a gas extraction drill hole between two hole sealing plugs through a grouting pipeline, is provided with a controllable grouting pump on the grouting pipeline and is used for injecting the hole sealing slurry into the gas extraction drill hole, the pressure sensor is arranged in the gas extraction drill hole between the two hole sealing plugs and is used for collecting the pressure of the hole sealing slurry and transmitting the pressure to the monitoring control host, and the monitoring control host is used for monitoring the hole sealing pressure and controlling the grouting of the controllable grouting pump.
The utility model discloses further improvement lies in, still is provided with electric valve on the slip casting pipeline.
The utility model discloses further improvement lies in, and the monitoring control host computer includes hole sealing pressure monitoring module and slip casting control module, and hole sealing pressure monitoring module is used for carrying out real-time supervision to the thick liquid pressure of the interior hole sealing section of drilling, and slip casting control module is used for carrying out on-off control to controllable grouting pump and electric valve.
Compared with the prior art, the utility model discloses following profitable technological effect has:
the utility model provides a gas drainage drilling hole sealing quality on-line monitoring and self-sealing integration system can take out the sealed thick liquid pressure variation of drilling hole sealing section to carry out real-time on-line monitoring to gas drainage, when great decline sealing quality goes wrong in the appearance of pressure, can take automatic benefit thick liquid measure the very first time, guarantees the long-term stability of the sealed effect of drilling.
Drawings
FIG. 1 is an overall schematic view of the gas extraction drilling and sealing quality online monitoring and automatic sealing integrated system of the utility model;
description of reference numerals:
1. a pressure sensor; 2. a signal cable; 3. monitoring the control host; 4. a hole sealing slurry storage device; 5. a controllable grouting pump; 6. an electrically operated valve; 7. grouting pipelines; 8. a hole sealing pressure monitoring module; 9. a grouting control module; 10. a gas extraction pipeline; 11. sealing the hole plug; 12. hole sealing slurry; 13. and (5) gas extraction drilling.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the utility model provides a gas drainage drilling hole sealing quality on-line monitoring and self-sealing integration system, including pressure sensor 1, signal cable 2, monitoring control host computer 3, hole sealing thick liquid storage device 4, controllable grouting pump 5, electric valve 6, slip casting pipeline 7 and gas drainage pipeline 10, wherein, monitoring control host computer includes hole sealing pressure monitoring module 8 and slip casting control module 9.
Further, in the process of hole sealing after the gas extraction drill hole 13 is arranged, one end of the gas extraction pipeline 10 extends into the gas extraction drill hole 13 and is used for extracting gas in the gas extraction drill hole 13, and two hole sealing plugs 11 are sleeved on the gas extraction pipeline 10 extending into the gas extraction drill hole 13; a grouting pipeline 7 and a pressure sensor 1 are arranged in hole sealing slurry 12 between two hole sealing plugs 11 in a hole sealing section, the grouting pipeline 7 is sequentially connected with an electric valve 6, a controllable grouting pump 5 and a hole sealing slurry storage device 4, and the pressure sensor 1, the controllable grouting pump 5 and the electric valve 6 are respectively connected with a monitoring control host 3 through signal cables 2.
Further, the system is monitored in real time after being installed, when the pressure sensor 1 monitors that the pressure of the hole sealing slurry 12 is greatly reduced, the monitoring control host 3 sends a control signal to start the controllable grouting pump 5 and the electric valve 6 to supplement slurry, and automatically closes the controllable grouting pump 5 and the electric valve 6 until the pressure of the hole sealing slurry 12 reaches a preset value, so that a dynamic sealing process is completed, the steps are repeated in such a circulating mode, and the online monitoring and automatic sealing of the gas extraction drilling and hole sealing quality are achieved. Specifically, the hole sealing pressure monitoring module 8 is used for monitoring the pressure of the slurry in the hole sealing section in the drill hole in real time, and the grouting control module 9 is used for controlling the opening and closing of the controllable grouting pump 5 and the electric valve 6.
Claims (3)
1. The gas extraction drilling and sealing quality online monitoring and automatic sealing integrated system is characterized by comprising a pressure sensor (1), a signal cable (2), a monitoring control host (3), a hole sealing slurry storage device (4), a controllable grouting pump (5), a grouting pipeline (7) and a gas extraction pipeline (10); wherein the content of the first and second substances,
one end of the gas extraction pipeline (10) extends into the gas extraction drill hole (13) and is used for extracting gas in the gas extraction drill hole (13), and two hole sealing plugs (11) are sleeved on the gas extraction pipeline (10) extending into the gas extraction drill hole (13);
the hole sealing slurry storage device (4) is used for storing available hole sealing slurry (12), the hole sealing slurry storage device is connected to a gas extraction drill hole (13) between two hole sealing plugs (11) through a grouting pipeline (7), a controllable grouting pump (5) is arranged on the grouting pipeline (7) and used for injecting the hole sealing slurry (12) into the gas extraction drill hole (13), a pressure sensor (1) is arranged in the gas extraction drill hole (13) between the two hole sealing plugs (11) and used for collecting the pressure of the hole sealing slurry (12) and transmitting the pressure to a monitoring control host (3), and the monitoring control host (3) is used for monitoring the hole sealing pressure and controlling grouting of the controllable grouting pump (5).
2. The gas extraction drilling and sealing quality online monitoring and automatic sealing integrated system according to claim 1, characterized in that an electric valve (6) is further arranged on the grouting pipeline (7).
3. The gas extraction drilling and sealing quality online monitoring and automatic sealing integrated system according to claim 2, wherein the monitoring control host (3) comprises a hole sealing pressure monitoring module (8) and a grouting control module (9), the hole sealing pressure monitoring module (8) is used for monitoring the pressure of slurry in a hole sealing section in a drill hole in real time, and the grouting control module (9) is used for controlling the opening and closing of the controllable grouting pump (5) and the electric valve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197069.9U CN211648074U (en) | 2020-02-21 | 2020-02-21 | Online monitoring and automatic sealing integrated system for gas extraction drilling and hole sealing quality |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020197069.9U CN211648074U (en) | 2020-02-21 | 2020-02-21 | Online monitoring and automatic sealing integrated system for gas extraction drilling and hole sealing quality |
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| Publication Number | Publication Date |
|---|---|
| CN211648074U true CN211648074U (en) | 2020-10-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020197069.9U Active CN211648074U (en) | 2020-02-21 | 2020-02-21 | Online monitoring and automatic sealing integrated system for gas extraction drilling and hole sealing quality |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107460A (en) * | 2021-04-08 | 2021-07-13 | 煤炭科学研究总院 | Intelligent monitoring device for gas extraction drill hole and using method thereof |
-
2020
- 2020-02-21 CN CN202020197069.9U patent/CN211648074U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113107460A (en) * | 2021-04-08 | 2021-07-13 | 煤炭科学研究总院 | Intelligent monitoring device for gas extraction drill hole and using method thereof |
| CN113107460B (en) * | 2021-04-08 | 2022-04-29 | 煤炭科学研究总院有限公司 | Intelligent monitoring device for gas extraction drill hole and using method thereof |
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