CN203962029U - Mash gas pumping drilling leak detection and leak stopping integrated apparatus - Google Patents
Mash gas pumping drilling leak detection and leak stopping integrated apparatus Download PDFInfo
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- CN203962029U CN203962029U CN201420437973.7U CN201420437973U CN203962029U CN 203962029 U CN203962029 U CN 203962029U CN 201420437973 U CN201420437973 U CN 201420437973U CN 203962029 U CN203962029 U CN 203962029U
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Abstract
The utility model discloses a kind of mash gas pumping drilling leak detection and leak stopping integrated apparatus, comprise hole sealing tube, connect soon threeway, sound-pipe, gas analyzer and drainage tube, also comprise and press wind material feeding pump and filling tube, described sound-pipe and filling tube are built in and connect soon in threeway, described the first port that connects soon threeway is arranged on outside filling tube, the second port is connected with drainage tube, the 3rd port is connected with hole sealing tube, the discharge port end of described filling tube stretches in extraction borehole, feed inlet end is connected with pressing wind material feeding pump, described be provided with corresponding with the second port of the first port that connects soon threeway controlled filling tube the open and close valve I opening and closing and the open and close valve II of controlling drainage tube switching, this apparatus structure is simple, and installation and testing process are convenient, and accuracy of detection is high, safe and reliable, effectively raises operating efficiency.
Description
Technical field
The utility model belongs to coal gas pumping field, is specifically related to mash gas pumping drilling leak detection and leak stopping integrated apparatus.
Background technology
Coal in absolute main positions, expects 2015 in the disposable energy resource structure of China, and China is by the coal demand that reaches 3,800,000,000 tons.But the development of China coal industry is faced with stern challenge under the new situation.The frequent particularly serious Gas Disaster accident occurring, has become the restraining factors that Safety of Coal Mine Production is the most serious.China's condition of coal seam occurrence complexity, high gas and coal and gas outburst mine account for 1/3, and control coal mine gas disaster just becomes the most important thing of safety in production.In addition, gas (coal bed gas) is a kind of clean, efficient energy, remains high, reduces discharging under the unprecedented overall situation increasing of pressure in international oil price, needs the exploitation dynamics of increasing gas badly, sets it as the valuable source of optimization China energy resource structure.Gas pumping is not only effective control coal mine gas disaster and is realized the regional measure that the essential type of safety is produced, and Ye Shi China implements the technical way of coalbed gas in coal mine area exploitation.Coal mine gas drainage and utilization are not only conducive to improve safety of coal mines level, also help increase energy supply, and Optimization of Energy Structure improves efficiency of energy utilization, promotes energy-saving and emission-reduction, preserves the ecological environment.
Therefore, coal mine gas drainage Jian is complete, the energy and environmental benefit be in one, achieves many things at one stroke, and has multiple economic and social benefit, and China's economic development and social development are all of great immediate significance.Because China's coal-bed gas geological conditions is comparatively complicated, be subject to the impact of the present art simultaneously, cause the sealing quality of down-hole extraction borehole poor, thereby cause coal bed drilling mash gas extraction concentration generally on the low side.This has formed safely threat not only to coal mine gas transport system, also makes mash gas extraction utilize cost to increase simultaneously, has seriously hindered China's cbm development industry to faster and better future development.For the problem of extraction borehole method for sealing, Chinese scholar and field technician have been put to a large amount of practices, successively form injection hole sealing technology, polyurethane high molecule material hole sealing technology, coal ash secondary hole sealing technology etc., certain effect has been obtained in the different mining area that is applied in of such technology, but because coal mine down-hole tunnel tunnels the existence of " unloading trim ring " of forming and the creep behaviour at coal petrography self, cause boring after having sealed for the first time, along with the enforcement of extraction operation, will cause the growth of secondary interstice, thereby cause air and take in boring, reduce the concentration of mash gas extraction in boring.
Summary of the invention
In view of this, it is a kind of simple in structure that the purpose of this utility model is to provide, and without changing, implement can complete gas pumping, the integrated apparatus of hole leak detection and leak stopping.
For achieving the above object, the utility model provides following technical scheme: a kind of mash gas pumping drilling leak detection and leak stopping integrated apparatus, comprise hole sealing tube, connect soon threeway, sound-pipe, gas analyzer and drainage tube, also comprise and press wind material feeding pump and filling tube, described sound-pipe and filling tube are built in and connect soon in threeway, described the first port that connects soon threeway is arranged on outside filling tube, the second port is connected with drainage tube, the 3rd port is connected with hole sealing tube, the discharge port end of described filling tube stretches in extraction borehole, feed inlet end is connected with pressing wind material feeding pump, described be provided with corresponding with the second port of the first port that connects soon threeway controlled filling tube the open and close valve I opening and closing and the open and close valve II of controlling drainage tube switching.
Further, described connecing soon in threeway is built-in with four filling tubes, and the angle between adjacent two filling tubes is 90 °, and the discharge port end of described each filling tube is bending arc.
Further, described sound-pipe is arranged in the middle of four filling tubes, and the end of probe of sound-pipe is stretched out the discharge port end of filling tube.
Further, described the 3rd port that connects soon threeway is ferrule structure, is provided with the taper washer being sleeved on outside filling tube in ferrule structure.
The beneficial effects of the utility model are: (1) can be under the state of gas extraction, can synchronously carry out oxygen (or nitrogen) concentration determination of different depths in extraction borehole, in extraction process, detect in real time gas density, to in time air-leak section is carried out to leak stopping sealing, effectively raise the extraction concentration of gas; (2) if the problem of leaking air can cause oxygen (or nitrogen) Enrichment, cause potential safety hazard, by leak detection, leak stopping timely, can effectively ensure the safety of extraction borehole; (3) simple in structure, easy to use, accuracy of detection is high, safe and reliable, can complete leak detection and the plugging operations of gas pumping, extraction borehole without replacing implement, effectively raises operating efficiency.
Brief description of the drawings
In order to make the purpose of this utility model, technical scheme and beneficial effect clearer, the utility model provides following accompanying drawing to describe:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is described in detail.
As shown in the figure, mash gas pumping drilling leak detection described in the utility model and leak stopping integrated apparatus, comprise hole sealing tube 1, connect soon threeway 2, sound-pipe 3, gas analyzer 4 and drainage tube 5, also comprise and press wind material feeding pump 6 and filling tube 7, described sound-pipe 3 is built in and connects soon in threeway 2 with filling tube 7, described the first port 21 that connects soon threeway 2 is arranged on outside filling tube 7, the second port 22 is connected with drainage tube 5, the 3rd port 23 is connected with hole sealing tube 1, the discharge port end of described filling tube 7 stretches in extraction borehole 8, feed inlet end is connected with pressing wind material feeding pump 6, described the first port 21 that connects soon threeway 2 is corresponding with the second port 22 places to be provided with and to control open and close valve I 24 that filling tube 7 opens and closes and the open and close valve II 25 of controlling drainage tube 5 and opening and closing.
In the present embodiment, three ports that connect soon threeway 2 are tightly connected with filling tube 7, drainage tube 5 and hole sealing tube 1 respectively, open and close valve I 24 and open and close valve II 25 are controlled the switching of filling tube and drainage tube, the switching of sound-pipe 3 is controlled separately by (end is connected with the gas analyzer) valve 9 being arranged on sound-pipe 3, by the circulation path of selectively unlocking or sealing drainage tube 5 and filling tube 7, realize gas pumping and bore blocking, then sound-pipe 3 is carried out to open and close controlling and can realize boring leak detection; Single unit system is simple in structure, easy for installation, can meet different job requirements.
As the further improvement of such scheme, described connecing soon in threeway 2 is built-in with four filling tubes 7, and the angle that adjacent two filling tubes are 7 is 90 °, and the discharge port end of described each filling tube 7 is bending arc; Disperse Gas leak position to carry out shutoff, ensured the reliability of shutoff, the design of the discharging opening of Curved, is more conducive to contacting of loss circulation material and drill hole inner wall; Wherein, loss circulation material is epoxy resin composition.
In the present embodiment, described sound-pipe 3 is arranged in the middle of four filling tubes 7, and the end of probe of sound-pipe 3 is stretched out the discharge port end of filling tube 7, can pass through the firm sound-pipe 3 of filling tube 7, also can avoid affecting because of filling tube 7 material sprays the detection accuracy of sound-pipe 3 simultaneously; Described the 3rd port 23 that connects soon threeway 2 is ferrule structure, is provided with the taper washer 26 being sleeved on outside filling tube 7 in ferrule structure; Can realize the connection and the sealing that connect soon the 3rd port 23 in threeway 2 by tightening card nested structure, simple and efficient to handle, sealing is reliable.
The method of utilizing gas pumping, boring leak detection and the leak stopping of above-mentioned integrated apparatus, mainly comprises following steps:
(1) integrated apparatus is inserted in extraction borehole 8, and each this device link is connected with drainage tube 5, pressure wind material feeding pump 6, gas analyzer 4 and hole sealing tube 1 respectively, ensure that each link is closely reliable, the valve 9 now connecing soon on open and close valve I 24, open and close valve II 25 and the sound-pipe 3 in threeway 2 is closed condition; While starting mash gas extraction, ensure that open and close valve I 24 and valve 9 are closed condition, open open and close valve II 25, be communicated with hole sealing tube 1 and drainage tube 5, realize gas pumping.
(2) patrol and examine operation while finding that hole pumping and mining gas density is on the low side, need hunt leak to extraction borehole 8, now should ensure that open and close valve II 22 is for opening, open and close valve I 21 is closed condition, hole sealing tube 1 is communicated with drainage tube 5 roads, opens the valve 9 on sound-pipe 3, utilize gas analyzer 4 to measure the gas concentration value of different hole depths, oxygen (or nitrogen) gas concentration value that detects different depth in boring, judges Gas leak position; Also can make the valve 9 on sound-pipe 3 remain normally open, be convenient to the gas density of Real-Time Monitoring different depth in gas extraction process.
(3) find after Gas leak position, Gas leak position is carried out to leak stopping, now should close the valve 9 on open and close valve II 22 and sound-pipe 3, open open and close valve I 21 and press wind material feeding pump 6, utilize down-hole compressed air, by pressing wind material feeding pump 6 and filling tube 7 loss circulation material to be injected into the Gas leak position place of drill hole inner wall, thereby realize the leak stopping of boring.
Its operating principle is: in borehole sealing quality in the good and gastight situation of borehole circumference, oxygen (or nitrogen) concentration in extraction borehole 8 should basicly stable unanimously (fluctuating) along the distribution of hole depth in less scope; Problem that if borehole sealing is second-rate or the inner a certain position of holing leaks air, under extraction suction function, can there is sudden change along the distribution of hole depth in the interior oxygen of extraction borehole 8 (or nitrogen) concentration, this position is Gas leak position, therefore can determine Gas leak position according to the variation of the concentration measured value of oxygen (or nitrogen); Judging after the Gas leak position of extraction borehole 8, by filling tube 7, loss circulation material spray is arrived to Gas leak position place, thereby leak detection and the leak stopping of enforcement extraction borehole are integrated.
Finally explanation is, above preferred embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is described in detail by above preferred embodiment, but those skilled in the art are to be understood that, can make various changes to it in the form and details, and not depart from the utility model claims limited range.
Claims (4)
1. a mash gas pumping drilling is hunted leak and leak stopping integrated apparatus, comprise hole sealing tube, connect soon threeway, sound-pipe, gas analyzer and drainage tube, it is characterized in that: also comprise and press wind material feeding pump and filling tube, described sound-pipe and filling tube are built in and connect soon in threeway, described the first port that connects soon threeway is arranged on outside filling tube, the second port is connected with drainage tube, the 3rd port is connected with hole sealing tube, the discharge port end of described filling tube stretches in extraction borehole, feed inlet end is connected with pressing wind material feeding pump, described be provided with corresponding with the second port of the first port that connects soon threeway controlled filling tube the open and close valve I opening and closing and the open and close valve II of controlling drainage tube switching.
2. mash gas pumping drilling leak detection according to claim 1 and leak stopping integrated apparatus, it is characterized in that: described connecing is soon built-in with four filling tubes in threeway, angle between adjacent two filling tubes is 90 °, and the discharge port end of described each filling tube is bending arc.
3. mash gas pumping drilling leak detection according to claim 2 and leak stopping integrated apparatus, is characterized in that: described sound-pipe is arranged in the middle of four filling tubes, and the end of probe of sound-pipe is stretched out the discharge port end of filling tube.
4. mash gas pumping drilling leak detection according to claim 3 and leak stopping integrated apparatus, is characterized in that: described the 3rd port that connects soon threeway is ferrule structure, is provided with the taper washer being sleeved on outside filling tube in ferrule structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437973.7U CN203962029U (en) | 2014-08-05 | 2014-08-05 | Mash gas pumping drilling leak detection and leak stopping integrated apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420437973.7U CN203962029U (en) | 2014-08-05 | 2014-08-05 | Mash gas pumping drilling leak detection and leak stopping integrated apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962029U true CN203962029U (en) | 2014-11-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420437973.7U Withdrawn - After Issue CN203962029U (en) | 2014-08-05 | 2014-08-05 | Mash gas pumping drilling leak detection and leak stopping integrated apparatus |
Country Status (1)
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| CN (1) | CN203962029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100293A (en) * | 2014-08-05 | 2014-10-15 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilled hole leakage checking and plugging integrated device and method |
-
2014
- 2014-08-05 CN CN201420437973.7U patent/CN203962029U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104100293A (en) * | 2014-08-05 | 2014-10-15 | 中煤科工集团重庆研究院有限公司 | Gas extraction drilled hole leakage checking and plugging integrated device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141126 Effective date of abandoning: 20160106 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |