CN203145926U - Device for rapidly measuring coal layer gas pressure in downward super-deep drill hole - Google Patents
Device for rapidly measuring coal layer gas pressure in downward super-deep drill hole Download PDFInfo
- Publication number
- CN203145926U CN203145926U CN 201320075880 CN201320075880U CN203145926U CN 203145926 U CN203145926 U CN 203145926U CN 201320075880 CN201320075880 CN 201320075880 CN 201320075880 U CN201320075880 U CN 201320075880U CN 203145926 U CN203145926 U CN 203145926U
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- Prior art keywords
- capsule
- gas pipe
- gas pressure
- drill hole
- plug
- 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.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title abstract description 21
- 239000002775 capsule Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000002347 injection Methods 0.000 claims abstract description 11
- 239000007924 injection Substances 0.000 claims abstract description 11
- 238000005553 drilling Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 8
- 238000009530 blood pressure measurement Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 6
- 210000003097 mucus Anatomy 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 239000011083 cement mortar Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 241000167854 Bourreria succulenta Species 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019693 cherries Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a device for rapidly measuring coal layer gas pressure in a downward super-deep drill hole. The device comprises a first end socket, a second end socket, a capsule, a water injection joint, a gas pipe and a pressing joint, wherein the capsule is wrapped on the gas pipe, the first end socket and the second end socket used for fixing the gas pipe are respectively arranged at the two ends of the capsule, a water injection hole communicated with the capsule is arranged in the middle of one end of the second end socket, the water injection joint is arranged on the water injection hole, and the pressing joint is mounted the position where the second end socket fixes the gas pipe. The device is arranged in the drill hole to seal the drill hole, and a pressure gauge is connected to the external gas pipe, so that the gas pressure of a coal layer can be measured. The device for rapidly measuring the coal layer gas pressure in the downward super-deep drill hole is simple, convenient to operate, good in effect and has extensive practicality.
Description
Technical field
The utility model relates to the device of measuring coal-bed gas pressure, especially a kind ofly is applicable to that descending extra-deep hole drilling under the complex geological condition measures the device of coal-bed gas pressure fast.
Background technology
As everyone knows, coal and gas are outstanding to be a kind of dynamic phenomenon that occurs in the cherry coal that contains high pressure gas, in case the life of frequent entail dangers to coal miner occurs giving prominence to.In advance the coal seam in the certain limit is identified, provide this coal seam whether the outstanding conclusion of coal and gas can take place in recovery process, for definite mine design type, take outburst prevention measures in advance, improve the colliery management method, avoid the outstanding harm that brings, have important effect.In carrying out the outstanding process of identifying in coal seam, usually to measure the gas pressure in coal seam, this is to weigh the important indicator whether give prominence in the coal seam.The gas pressure assay method that generally adopts under the coal mine has at present: 1) yellow mud method of pore sealing; 2) cement mortar method of pore sealing; 3) mucus hole packer method is drilled to the coal seam by in-plant tunnel, and pipe is arranged in the boring, and after boring was sealed up, the boring inner end formed a pressure measurement air chamber, and the pipe outer end connects pressure meter, and it is stable to wait for the pressure rising quietly, can record the gas pressure in coal seam.In these method for sealing, better with mucus hole packer method effect, its principle is that hole packer is placed boring, with the mucus in the middle of two capsule shutoff, again with the gas of mucus shutoff pressure measurement air chamber, guarantee that the gas in the pressure measurement air chamber does not leak, shortcoming is that the distance of shutoff is about 10～20 meters.The advantage of cement mortar sealing of hole be can shutoff than gun drilling, it is slower that shortcoming is that cement mortar is solidified, the gas in the solidificating period pressure measurement air chamber easily scatters and disappears, the pressure stability time is longer.Particularly when running into complex geological condition, to grow as rock crack, ground water pressure is easily ganged up with the coal hole in the rock stratum, and the coal seam is when being in below far away, pressure measurement place, and the employing said method all is difficult to record coal-bed gas pressure value accurately.Therefore, the gas pressure in descending super dark coal seam is the on-the-spot a great problem of being badly in need of solution under the mensuration complex geological condition.
Summary of the invention
The purpose of this utility model is the weak point that overcomes in the prior art, provides a kind of method is easy, simple in structure, the degree of accuracy is high, not influenced by ground water pressure descending extra-deep hole drilling to measure the device of coal-bed gas pressure fast.
For achieving the above object, descending extra-deep hole drilling of the present utility model is measured the device of coal-bed gas pressure fast, constituted by first plug, second plug, capsule, water filling joint, gas pipe, pressed joint, wherein: capsule is wrapped on the gas pipe, the two ends of capsule are respectively arranged with fixedly first plug, second plug of gas pipe, second plug, one end is provided with the water injection hole that leads in the capsule, and the water filling joint is set on the water injection hole, and second plug fixedly gas pipe place is equipped with pressed joint.
Beneficial effect: to coal-bed gas pressure, this device is placed boring under the utility model can be used in and measures, seal boring, connect pressure meter on the gas pipe externally, can measure the gas pressure in coal seam.Owing to before the sealing of hole high pressure injection oar has been carried out in the rock stratum, can prevent that the gas in the pressure measuring chamber from leaking by rock crack and underground water intrusion pressure measuring chamber, measure coal-bed gas pressure rapidly and accurately; Because being connected to four on this hole sealing device is in charge of spreading arbitrarily, this device can be measured 50 meters with last gas pressure to the coal seam far away, can be reduced to the roadway engineering of measuring coal-bed gas pressure and tunneling.This apparatus structure is simple, and is easy and simple to handle, and pressure measurement speed is fast, and the result is accurate, and is respond well, has practicality widely.
Description of drawings
Fig. 1 is capsule hole packer structure chart of the present utility model;
Among the figure: the 1-plug-, 2-plug two, 3-capsule, 4-water filling joint, 5-gas pipe, 6-pressed joint.
The specific embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described:
Shown in Figure 1, descending extra-deep hole drilling of the present utility model is measured the device of coal-bed gas pressure fast, mainly constituted by first plug 1, second plug 2, capsule 3, water filling joint 4, gas pipe 5, pressed joint 6, wherein: capsule 3 is wrapped on the gas pipe 5, the two ends of capsule 3 are respectively arranged with fixedly first plug 1, second plug 2 of gas pipe 5, second plug, 2 one ends middle part is provided with the water injection hole that leads in the capsule 3, water filling joint 4, the second plugs 2 are set on the water injection hole fixedly pressed joint are installed gas pipe 5 places.
Claims (1)
1. a descending extra-deep hole drilling is measured the device of coal-bed gas pressure fast, it is characterized in that: it is by first plug (1), second plug (2), capsule (3), water filling joint (4), gas pipe (5), pressed joint (6) constitutes, wherein: capsule (3) is wrapped on the gas pipe (5), the two ends of capsule (3) are respectively arranged with fixedly first plug (1) of gas pipe (5), second plug (2), second plug (2) one ends middle part is provided with the water injection hole that leads in the capsule (3), water filling joint (4) is set on the water injection hole, and second plug (2) fixedly gas pipe (5) locates to be equipped with pressed joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320075880 CN203145926U (en) | 2013-02-19 | 2013-02-19 | Device for rapidly measuring coal layer gas pressure in downward super-deep drill hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320075880 CN203145926U (en) | 2013-02-19 | 2013-02-19 | Device for rapidly measuring coal layer gas pressure in downward super-deep drill hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203145926U true CN203145926U (en) | 2013-08-21 |
Family
ID=48973462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320075880 Expired - Fee Related CN203145926U (en) | 2013-02-19 | 2013-02-19 | Device for rapidly measuring coal layer gas pressure in downward super-deep drill hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203145926U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742129A (en) * | 2013-12-30 | 2014-04-23 | 中国矿业大学 | Method for drilling holes on soft coal seam to measure coal seam gas pressure |
| CN107100585A (en) * | 2017-04-25 | 2017-08-29 | 中煤科工集团重庆研究院有限公司 | High pressure capsule solid hole device |
| CN111520131A (en) * | 2020-04-08 | 2020-08-11 | 中国矿业大学 | Device and method for measuring coal seam gas pressure in situ at ultra-long distance |
-
2013
- 2013-02-19 CN CN 201320075880 patent/CN203145926U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103742129A (en) * | 2013-12-30 | 2014-04-23 | 中国矿业大学 | Method for drilling holes on soft coal seam to measure coal seam gas pressure |
| CN103742129B (en) * | 2013-12-30 | 2016-06-22 | 中国矿业大学 | The method of weak seam measuring gas pressure of coal bed by drilling hole |
| CN107100585A (en) * | 2017-04-25 | 2017-08-29 | 中煤科工集团重庆研究院有限公司 | High pressure capsule solid hole device |
| CN111520131A (en) * | 2020-04-08 | 2020-08-11 | 中国矿业大学 | Device and method for measuring coal seam gas pressure in situ at ultra-long distance |
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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: 20130821 Termination date: 20150219 |
|
| EXPY | Termination of patent right or utility model |