CN2706748Y - Device for measuring gaspressure by directly drilling and sealing hole in coal seam - Google Patents
Device for measuring gaspressure by directly drilling and sealing hole in coal seam Download PDFInfo
- Publication number
- CN2706748Y CN2706748Y CNU200420028190XU CN200420028190U CN2706748Y CN 2706748 Y CN2706748 Y CN 2706748Y CN U200420028190X U CNU200420028190X U CN U200420028190XU CN 200420028190 U CN200420028190 U CN 200420028190U CN 2706748 Y CN2706748 Y CN 2706748Y
- Authority
- CN
- China
- Prior art keywords
- sealing
- hole
- tube
- pressure
- coal seam
- 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
- 238000007789 sealing Methods 0.000 title claims abstract description 50
- 239000003245 coal Substances 0.000 title claims abstract description 17
- 238000005553 drilling Methods 0.000 title claims abstract description 11
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000007787 solid Substances 0.000 claims abstract description 5
- 210000003097 mucus Anatomy 0.000 claims description 11
- 239000006260 foam Substances 0.000 claims description 10
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229920000715 Mucilage Polymers 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000011435 rock Substances 0.000 abstract description 4
- 239000003292 glue Substances 0.000 abstract 5
- 229920005830 Polyurethane Foam Polymers 0.000 abstract 2
- 239000011496 polyurethane foam Substances 0.000 abstract 2
- 238000009530 blood pressure measurement Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a ' polyure foam-pressure glue' device for measuring gas pressure by directly drilling and sealing in a coal seam. The utility model is especially suitable to directly drill and seal to measure gas pressure of soft rock and the coal seam. The utility model is based on the sealing principle of ' solid sealing liquid and liquid sealing gas ', two segments of polyurethane foam segments are used for sealing, and glue provided with certain pressure is filled between the two segments of polyurethane foam segments to form a glue sealing segment. The pressure of the glue is slightly higher than the gas pressure of the coal seam, the glue is filtered into the cracks of the periphery of a drill hole under the pressure action to stop gas to leak, and thus the authentic gas pressure of the coal seam is measured.
Description
One, technical field
The utility model relates to a kind of " isocyanurate foam-pressure mucus ", and the coal seam directly drills that sealing of hole is measured the gas pressure device, is particularly useful for soft rock, the coal seam sealing of hole of directly drilling and measures gas pressure.
Two, background technology
At present, the coal seam sealing of hole of directly drilling is measured the gas pressure device and is had M-2 gas pressure analyzer and capsule-pressure mucus sealing of hole to measure the coal-bed gas pressure instrument, because costing an arm and a leg of M-2 gas pressure analyzer, when the sealing of hole of directly drilling in soft rock, coal seam is measured coal-bed gas pressure, usually can be because of the hole of collapsing, stick with paste the hole and instrument be embedded in the hole, cause pressure measurement cost costliness; Other hole sealing devices such as yellow mud, mortar cement sealing of hole are measured the coal-bed gas pressure instrument, and the solids of its sealing of hole can not tightly seal the crack of borehole circumference, are easy to gas leakage, are difficult to measure real gas pressure.
Three, technology contents
1. goal of the invention
The practical problems that the utility model exists at above prior art just proposes, this device solves when having microfissure around soft sandstone, coal seam or the boring, the technical matters of sealing of hole solids bad sealing greatly reduces sealing of hole pressure measurement cost simultaneously.
2. technical scheme
This coal seam sealing of hole of directly drilling is measured the sealing of hole principle that the gas pressure device is based on " solid sealing liquid body; liquid envelope gas ", promptly except utilizing two sections isocyanurate foam section sealing of holes, between two sections isocyanurate foam sections, also pour mucus with certain pressure, the pressure of mucus is a little more than coal-bed gas pressure, mucus is infiltrated the borehole circumference crack under pressure, stops the leakage of gas, thereby makes the gas pressure value of measuring equal the real gas pressure in coal seam.
3. technique effect
This device is through experimental test, have simple to operate, measuring accuracy is high, the sealing of hole low cost and other advantages, be particularly useful for soft rock, the coal seam sealing of hole of directly drilling and measure gas pressure.
Four, description of drawings
Fig. 1 is a mounting structure synoptic diagram of the present utility model
Five, embodiment
Below in conjunction with accompanying drawing an embodiment of the present utility model is described in further detail:
The coal seam of the present utility model sealing of hole of directly drilling is measured the gas pressure device, as shown in the figure, it mainly contains hole sealing tube 1, piezometric tube 2, mucilage tube 3, block plate 4, rubber cushion 5, foam sealing hole section 6, box cupling 7, mucus sealing of hole section 8 and pressure measuring chamber 9 are formed, hole sealing tube 1 is 1/4 cun of a diameter, long 9 meters iron pipe, for ease of installing, hole sealing tube 1 is divided into 3 sections to be formed by connecting with box cupling 7, fix two pairs of block plates 4 in the appropriate location of hole sealing tube 1, inboard at block plate 4 installs rubber cushion 5 respectively additional, between two pairs of block plates 4, the isocyanurate foam band is wrapped on the hole sealing tube 1, constitutes two isocyanurate foam sealing of hole sections 6, between two isocyanurate foam sealing of hole sections 6, by mucilage tube 3 input pressure mucus, form mucus sealing of hole section 8, leave pressure measuring chamber 9 in the boring end, one end opening of piezometric tube 2 is positioned at pressure measuring chamber 9, another termination test pressure table.
Claims (2)
1. the coal seam sealing of hole of directly drilling is measured the gas pressure device, sealing of hole principle based on " solid sealing liquid body; liquid envelope gas ", it is characterized in that: this device is mainly by hole sealing tube (1), piezometric tube (2), mucilage tube (3), block plate (4), rubber cushion (5), foam sealing hole section (6), mucus sealing of hole section (8) and pressure measuring chamber (9) are formed, hole sealing tube (1) is an iron pipe, fix two pairs of block plates (4) in the appropriate location of hole sealing tube (1), install rubber cushion (5) respectively additional in the inboard of block plate (4), between two pairs of block plates (4), the isocyanurate foam band is wrapped on the hole sealing tube (1), constitute two isocyanurate foam sealing of hole sections (6), between two isocyanurate foam sealing of hole sections (6), by mucilage tube (3) input pressure mucus, form mucus sealing of hole section (8), leave pressure measuring chamber (9) in the boring end, an end opening of piezometric tube (2) is positioned at pressure measuring chamber (9), another termination test pressure table.
2. a kind of coal seam according to claim 1 sealing of hole of directly drilling is measured the gas pressure device, it is characterized in that: hole sealing tube (1) is divided into 3 sections and is formed by connecting with box cupling (7), is convenient to install.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200420028190XU CN2706748Y (en) | 2004-06-16 | 2004-06-16 | Device for measuring gaspressure by directly drilling and sealing hole in coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200420028190XU CN2706748Y (en) | 2004-06-16 | 2004-06-16 | Device for measuring gaspressure by directly drilling and sealing hole in coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2706748Y true CN2706748Y (en) | 2005-06-29 |
Family
ID=34849697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200420028190XU Expired - Fee Related CN2706748Y (en) | 2004-06-16 | 2004-06-16 | Device for measuring gaspressure by directly drilling and sealing hole in coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2706748Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102022093A (en) * | 2010-12-10 | 2011-04-20 | 煤炭科学研究总院重庆研究院 | Reactive type foamy hole sealing system |
| CN102071898A (en) * | 2010-12-10 | 2011-05-25 | 煤炭科学研究总院重庆研究院 | Self-formed baffle and reaction type foam hole sealing device thereof |
| CN102121376A (en) * | 2010-01-11 | 2011-07-13 | 河南理工大学 | Intelligent coal seam gas pressure tester |
| CN102536158A (en) * | 2010-12-10 | 2012-07-04 | 淮南矿业(集团)有限责任公司 | Uphole sealing method |
| CN102121395B (en) * | 2011-01-24 | 2012-09-19 | 平顶山天安煤业股份有限公司十矿 | Method for integrated comprehensive management of gas in low-permeability single coal bed |
| CN101775980B (en) * | 2010-01-18 | 2012-12-26 | 大同煤矿集团轩岗煤电有限责任公司 | Quick drainage and hole sealing gas parameter testing system |
| CN102913183A (en) * | 2012-10-26 | 2013-02-06 | 河南理工大学 | Multifunctional pneumatic sealing device and matched sealing process thereof |
| CN102937011A (en) * | 2012-12-03 | 2013-02-20 | 中国矿业大学 | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group |
| CN102996159A (en) * | 2012-12-03 | 2013-03-27 | 中国矿业大学 | Multiphase medium plugging device and method for gas extraction drill hole |
| CN103089247A (en) * | 2013-03-06 | 2013-05-08 | 中国矿业大学 | Gas pressure testing device and method of coal measure strata rich in water |
| CN111520102A (en) * | 2020-04-16 | 2020-08-11 | 湘潭大学 | Downward drilling gas pressure measuring and plugging system and using method thereof |
| CN111980621A (en) * | 2019-05-22 | 2020-11-24 | 西安青果新材料科技开发有限公司 | Polyurethane foam plugging device |
-
2004
- 2004-06-16 CN CNU200420028190XU patent/CN2706748Y/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121376B (en) * | 2010-01-11 | 2013-11-27 | 河南理工大学 | Intelligent coal seam gas pressure tester |
| CN102121376A (en) * | 2010-01-11 | 2011-07-13 | 河南理工大学 | Intelligent coal seam gas pressure tester |
| CN101775980B (en) * | 2010-01-18 | 2012-12-26 | 大同煤矿集团轩岗煤电有限责任公司 | Quick drainage and hole sealing gas parameter testing system |
| CN102022093B (en) * | 2010-12-10 | 2013-11-27 | 中煤科工集团重庆研究院 | Reactive type foamy hole sealing system |
| CN102071898A (en) * | 2010-12-10 | 2011-05-25 | 煤炭科学研究总院重庆研究院 | Self-formed baffle and reaction type foam hole sealing device thereof |
| CN102536158A (en) * | 2010-12-10 | 2012-07-04 | 淮南矿业(集团)有限责任公司 | Uphole sealing method |
| CN102536158B (en) * | 2010-12-10 | 2015-05-20 | 淮南矿业(集团)有限责任公司 | Uphole sealing method |
| CN102022093A (en) * | 2010-12-10 | 2011-04-20 | 煤炭科学研究总院重庆研究院 | Reactive type foamy hole sealing system |
| CN102121395B (en) * | 2011-01-24 | 2012-09-19 | 平顶山天安煤业股份有限公司十矿 | Method for integrated comprehensive management of gas in low-permeability single coal bed |
| CN102913183A (en) * | 2012-10-26 | 2013-02-06 | 河南理工大学 | Multifunctional pneumatic sealing device and matched sealing process thereof |
| CN102913183B (en) * | 2012-10-26 | 2015-11-04 | 河南理工大学 | Multifunctional pneumatic power hole sealing device and the hole-sealing technology supporting with it |
| CN102996159A (en) * | 2012-12-03 | 2013-03-27 | 中国矿业大学 | Multiphase medium plugging device and method for gas extraction drill hole |
| CN102996159B (en) * | 2012-12-03 | 2015-04-29 | 中国矿业大学 | Multiphase medium plugging device and method for gas extraction drill hole |
| CN102937011B (en) * | 2012-12-03 | 2015-10-21 | 中国矿业大学 | Mash gas pumping drilling group regional crack field secondary grouting plugging device and method |
| CN102937011A (en) * | 2012-12-03 | 2013-02-20 | 中国矿业大学 | Secondary grouting and plugging device and method of regional crack field of gas extraction and drilling group |
| CN103089247A (en) * | 2013-03-06 | 2013-05-08 | 中国矿业大学 | Gas pressure testing device and method of coal measure strata rich in water |
| CN103089247B (en) * | 2013-03-06 | 2015-06-17 | 中国矿业大学 | Gas pressure testing device and method of coal measure strata rich in water |
| CN111980621A (en) * | 2019-05-22 | 2020-11-24 | 西安青果新材料科技开发有限公司 | Polyurethane foam plugging device |
| CN111520102A (en) * | 2020-04-16 | 2020-08-11 | 湘潭大学 | Downward drilling gas pressure measuring and plugging system and using method thereof |
| CN111520102B (en) * | 2020-04-16 | 2024-06-21 | 湘潭大学 | Down-hole gas pressure measurement plugging system and application method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |