CN104502546A - Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole - Google Patents
Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole Download PDFInfo
- Publication number
- CN104502546A CN104502546A CN201510013908.0A CN201510013908A CN104502546A CN 104502546 A CN104502546 A CN 104502546A CN 201510013908 A CN201510013908 A CN 201510013908A CN 104502546 A CN104502546 A CN 104502546A
- Authority
- CN
- China
- Prior art keywords
- sealing
- pipeline
- experimental provision
- gas discharge
- experimental
- Prior art date
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 30
- 239000003566 sealing material Substances 0.000 title claims abstract description 23
- 238000005553 drilling Methods 0.000 title claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 48
- 238000001514 detection method Methods 0.000 claims abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 4
- 229920001971 elastomer Polymers 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000008393 encapsulating agent Substances 0.000 claims 2
- 230000000694 effects Effects 0.000 abstract description 8
- 238000002474 experimental method Methods 0.000 abstract 1
- 230000000149 penetrating Effects 0.000 abstract 1
- 239000007789 gases Substances 0.000 description 24
- 239000003570 air Substances 0.000 description 11
- 239000011901 water Substances 0.000 description 7
- 238000005086 pumping Methods 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 239000004698 Polyethylene (PE) Substances 0.000 description 2
- 238000000605 extraction Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 239000004568 cements Substances 0.000 description 1
- 238000005516 engineering processes Methods 0.000 description 1
- 239000011521 glasses Substances 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethanes Polymers 0.000 description 1
Abstract
The invention discloses an experimental device for detecting a sealing performance of a sealing material of a gas drainage drilling hole. The experimental device comprises a material detection pipe (1) for containing the sealing material (14); the left and right ends of the material detection pipe (1) are sealed by a left flange disc (2) and a right flange disc (15) respectively; the left end of the material detection pipe (1) is communicated with a pressure gauge (3), a left valve (4) and an air compressor (6) through a left pipeline (5) in sequence; and the right end of the material detection pipe (1) is communicated with a right valve (8), a flow meter (9) and a water tank (11) by a right pipeline (10) in sequence. The invention further provides an experimental method using the device. According to the experimental device and method, the shrinkage performance of the material is detected through the penetrating performance of high-pressure gas, the concept is simple, the effect is direct, and the detection effect is relatively good; and the sealing material with the relatively high quality can be selected by adopting the device and the method, and the bad-quality sealing material is eliminated.
Description
Technical field
The present invention relates to a kind of gas discharge drilling sealing material, specifically a kind of experimental provision and method detecting gas discharge drilling sealing material sealing property.
Background technology
The main method of China's coal-mine gas pumping is hole pumping and mining; The encapsulant of current hole pumping and mining is mainly polyurethanes expanded material, cement etc., but these materials generally have shrinkability, and the boring determining China's current down-hole extraction is generally leaked gas seriously, produces harmful effect to the extraction of gas and the safety in mine.
Generally lack now a kind of effective detection means and become the situation of leaking gas in boring to the shrinkability in the boring verifying these materials and along with the stream of time.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of experimental provision and the method that detect gas discharge drilling sealing material sealing property, carried out the shrinkage of test material by the permeance property of gases at high pressure, thinking is simple, effect is directly perceived.
To achieve these goals, the technical solution used in the present invention is: a kind of experimental provision detecting gas discharge drilling sealing material sealing property,
It comprises the material tests pipe for holding encapsulant;
The described left and right two ends of material tests pipe are respectively by left flange plate, right flangeseal;
Described material tests pipe left end is communicated with tensimeter, left valve and air compressor successively by left pipeline;
Described material tests pipe right-hand member is communicated with right valve, flowmeter and water tank successively by right pipeline.
Described left flange plate is by screw and rubber cushion sealing.
Described right ring flange is by screw and rubber cushion sealing.
Described material tests pipe two ends adopt cotton yarn to carry out shutoff simultaneously.
The end of described right pipeline stretches into below the liquid level of water tank.
Described material tests tube material detector tube material is PE material, and diameter gets the straight tube of 80-115mm.
Detect an experimental technique for gas discharge drilling sealing material sealing property, comprise the following steps:
1) be filled with after the encapsulant of certain mass being mixed in material tests pipe;
2) after material to be sealed solidifies completely; Open left valve, open air compressor, in experimental provision, be filled with pressure-air, regulate the power of air compressor, make the reading on tensimeter be 20kpa-30kpa;
3) whether open right valve, observe right pipeline has bubble to emerge in water tank, if there is bubble to emerge, and the reading of recording flowmeter, record per minute once, records 10 minutes continuously, and calculates the total gas flow q in 10 minutes;
4) if bubble-free is emerged in 10 minutes, illustrate that sealing is intact, do not have gas leak phenomenon, right pipeline gas flow q is designated as 0;
5) within every 5 days, carry out one-time detection by above-mentioned steps in 3 months, by comparing record, calculating the initial leakage time t of different sealing material, and drawing out the two dimensional image of leakage gas flow amount q and time t relation, to compare the sealing property between different materials.
Compared with existing apparatus and method, the boring under this experimental provision adopts material tests pipe to carry out simulation well, by the permeance property of gases at high pressure come test material shrinkage, its thinking is simple, effect directly perceived, has good Detection results; More high-quality encapsulant can be selected by this device and method, eliminate encapsulant inferior.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, material tests pipe, 2, left flange plate, 3, tensimeter, 4, left valve, 5, left pipeline, 6, air compressor, 7, screw, 8, right valve, 9, right rain glass, 10, right pipeline, 11, water tank, 12, rubber cushion, 13, cotton yarn, 14, encapsulant.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of experimental provision detecting gas discharge drilling sealing material sealing property,
It comprises the material tests pipe 1 for holding encapsulant 14, and wherein encapsulant 14 is full of material tests pipe 1;
The described left and right two ends of material tests pipe 1 seal respectively by left flange plate 2, right ring flange 15;
Described material tests pipe 1 left end is communicated with tensimeter 3, left valve 4 and air compressor 6 successively by left pipeline 5;
Described material tests pipe 1 right-hand member is communicated with right valve 8, flowmeter 9 and water tank 11 successively by right pipeline 10.
Further, described left flange plate 2 and right ring flange 15 are all sealed by screw 7 and rubber cushion 12, and sealing effect is simply effective.
Described material tests pipe 1 two ends adopt cotton yarn 13 to carry out shutoff simultaneously, keep sealing property further.
The end of described right pipeline 10 stretches into below the liquid level of water tank 11, also can insert bottom, and the pressure-air bubble display effect of carrying from air compressor 6 is better.
Described material tests pipe 1 material is PE material, and diameter gets the straight tube of 80-115mm, analogue simulation down-hole boring, and this pipe manufacturer is simple, and sealing is good.
Detect an experimental technique for gas discharge drilling sealing material sealing property, comprise the following steps:
1) be filled with in material tests pipe 1 after the encapsulant 14 of certain mass being mixed;
2) after material 14 to be sealed solidifies completely; Open left valve 4, open air compressor 6, in experimental provision, be filled with pressure-air, gas drainage negative pressure because of down-hole is between 10-30Kpa, regulate the power of air compressor 6, make the reading on tensimeter 3 be 20kpa-30kpa, be used for real simulation down-hole pressure;
3) whether open right valve 8, observe right pipeline 10 has bubble to emerge in water tank 11, if there is bubble to emerge, and the reading of recording flowmeter 9, record per minute once, records 10 minutes continuously, and calculates the total gas flow q in 10 minutes;
4) if bubble-free is emerged in 10 minutes, illustrate that sealing is intact, do not have gas leak phenomenon, right pipeline 10 gas flow q is designated as 0;
5) within every 5 days, carry out one-time detection by above-mentioned steps in 3 months, by comparing record, calculating the initial leakage time t of different sealing material, and drawing out the two dimensional image of leakage gas flow amount q and time t relation, to compare the sealing property between different materials.
In sum, this device carrys out the shrinkage of test material by the permeance property of gases at high pressure, its thinking is simple, effect directly perceived, has good Detection results; More high-quality encapsulant can be selected by this device and method, eliminate encapsulant inferior.
Claims (7)
1. detect an experimental provision for gas discharge drilling sealing material sealing property, it is characterized in that,
It comprises the material tests pipe (1) for holding encapsulant (14);
Described material tests pipe (1) left and right two ends are respectively by left flange plate (2), right ring flange (15) sealing;
Described material tests pipe (1) left end is communicated with tensimeter (3), left valve (4) and air compressor (6) successively by left pipeline (5);
Described material tests pipe (1) right-hand member is communicated with right valve (8), flowmeter (9) and water tank (11) successively by right pipeline (10).
2. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1, is characterized in that, described left flange plate (2) is by screw (7) and rubber cushion (12) sealing.
3. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1 and 2, is characterized in that, described right ring flange (15) is by screw (7) and rubber cushion (12) sealing.
4. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1, is characterized in that, described material tests pipe (1) two ends adopt cotton yarn (13) to carry out shutoff simultaneously.
5. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1, is characterized in that, the end of described right pipeline (10) stretches into below the liquid level of water tank (11).
6. a kind of experimental provision detecting gas discharge drilling sealing material sealing property according to claim 1 or 4, is characterized in that, described material tests pipe (1) material is PE material, and diameter gets the straight tube of 80-115mm.
7. detect an experimental technique for gas discharge drilling sealing material sealing property, it is characterized in that, comprise the following steps:
1) be filled with in material tests pipe (1) after the encapsulant (14) of certain mass being mixed;
2) after material to be sealed (14) solidifies completely; Open left valve (4), open air compressor (6), in experimental provision, be filled with pressure-air, regulate the power of air compressor (6), make the reading on tensimeter (3) be 20kpa-30kpa;
3) right valve (8) is opened, whether observe right pipeline (10) has bubble to emerge in water tank (11), if there is bubble to emerge, the reading of recording flowmeter (9), record per minute once, continuous record 10 minutes, and calculate the total gas flow q in 10 minutes;
4) if bubble-free is emerged in 10 minutes, illustrate that sealing is intact, do not have gas leak phenomenon, right pipeline (10) gas flow q is designated as 0;
5) within every 5 days, carry out one-time detection by above-mentioned steps in 3 months, by comparing record, calculating the initial leakage time t of different sealing material, and drawing out the two dimensional image of leakage gas flow amount q and time t relation, to compare the sealing property between different materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510013908.0A CN104502546A (en) | 2015-01-13 | 2015-01-13 | Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510013908.0A CN104502546A (en) | 2015-01-13 | 2015-01-13 | Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104502546A true CN104502546A (en) | 2015-04-08 |
Family
ID=52943960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510013908.0A CN104502546A (en) | 2015-01-13 | 2015-01-13 | Experimental device and method for detecting sealing performance of sealing material of gas drainage drilling hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104502546A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547962A (en) * | 2016-01-11 | 2016-05-04 | 河南理工大学 | One-dimensional simulation device for migration and transformation of solutes in underground water under high water pressure action |
| CN105954172A (en) * | 2016-05-19 | 2016-09-21 | 西安科技大学 | Coal bed liquid CO2 fracturing permeability improvement experimental device and method |
| CN106092457A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of detecting device for sealing property of ball valves |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000214161A (en) * | 1999-01-25 | 2000-08-04 | Maruto Seisakusho:Kk | Water-permeability/gas-permeability test device and seal structure of specimen for it |
| DE10031334A1 (en) * | 1999-07-01 | 2001-01-18 | Frank Rinn | Sealing drill resistance testing equipment so that wood can be tested under water by generating internal pressure equal to measured outside pressure |
| CN102435537A (en) * | 2011-11-21 | 2012-05-02 | 中国石油大学(华东) | Measuring device for gas permeability of coal rock core |
| CN102645396A (en) * | 2012-05-11 | 2012-08-22 | 太原理工大学 | Test method for improving coal rock permeability and device thereof |
| CN103940719A (en) * | 2014-04-15 | 2014-07-23 | 西安科技大学 | Coal body permeability characteristic testing system and method |
| CN204314282U (en) * | 2015-01-13 | 2015-05-06 | 六盘水师范学院 | Detect the experimental provision of gas discharge drilling sealing material sealing property |
-
2015
- 2015-01-13 CN CN201510013908.0A patent/CN104502546A/en not_active Application Discontinuation
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000214161A (en) * | 1999-01-25 | 2000-08-04 | Maruto Seisakusho:Kk | Water-permeability/gas-permeability test device and seal structure of specimen for it |
| DE10031334A1 (en) * | 1999-07-01 | 2001-01-18 | Frank Rinn | Sealing drill resistance testing equipment so that wood can be tested under water by generating internal pressure equal to measured outside pressure |
| CN102435537A (en) * | 2011-11-21 | 2012-05-02 | 中国石油大学(华东) | Measuring device for gas permeability of coal rock core |
| CN102645396A (en) * | 2012-05-11 | 2012-08-22 | 太原理工大学 | Test method for improving coal rock permeability and device thereof |
| CN103940719A (en) * | 2014-04-15 | 2014-07-23 | 西安科技大学 | Coal body permeability characteristic testing system and method |
| CN204314282U (en) * | 2015-01-13 | 2015-05-06 | 六盘水师范学院 | Detect the experimental provision of gas discharge drilling sealing material sealing property |
Non-Patent Citations (1)
| Title |
|---|
| 郝志勇: "材料复合技术及其在钻孔密封中的应用研究", 《中国博士学位论文全文数据库（电子期刊）》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105547962A (en) * | 2016-01-11 | 2016-05-04 | 河南理工大学 | One-dimensional simulation device for migration and transformation of solutes in underground water under high water pressure action |
| CN105547962B (en) * | 2016-01-11 | 2018-11-27 | 河南理工大学 | High hydraulic pressure acts on the One-dimensional simulation device of lower solute migration conversion in underground water |
| CN105954172A (en) * | 2016-05-19 | 2016-09-21 | 西安科技大学 | Coal bed liquid CO2 fracturing permeability improvement experimental device and method |
| CN106092457A (en) * | 2016-08-23 | 2016-11-09 | 成都欧浦特控制阀门有限公司 | A kind of detecting device for sealing property of ball valves |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106437637B (en) | High temperature and pressure carbon dioxide flooding super-viscous oil visualizes microcosmos experiment method | |
| CN104729948B (en) | Coal containing methane gas aqueous vapor two phase fluid flow experimental system and method | |
| CN100516804C (en) | Airtight type tested pieces air-leakage detecting device | |
| CN104677803B (en) | Often, varying head is combined pervasion test device | |
| CN204461965U (en) | Adding pressure type rock permeability instrument | |
| CN103926182B (en) | Permeability coefficient test method and test device under normal pressure | |
| CN105588796B (en) | A kind of device of accurate quick measure soil permeability coefficient | |
| CN107605461B (en) | Observation method of mine rock mass drilling gas plugging and extraction integrated system | |
| CN203011791U (en) | Gas absorption/desorption testing device | |
| CN105486840A (en) | Solidification and permeation combined experimental device | |
| CN101858817B (en) | Equal-pressure virtual isolation check valve sealing test method and equipment | |
| CN202204661U (en) | Device for simulating pipeline water inrush grouting treatment model, and testing system with device | |
| CN104297069A (en) | Gas-containing coal hydrofracture-induced dynamic damage simulation monitoring device and method | |
| CN103743633A (en) | Fluid structure interaction coal rock shear-seepage test device | |
| BR112014002474A2 (en) | methods and apparatus for level closed loop control | |
| BR112013004989A2 (en) | method and apparatus for determining the properties of a multiphase fluid | |
| CN104880394B (en) | A kind of concrete air infiltration test equipment and its method of testing | |
| CN104777089B (en) | Ground surface material testing permeability system under the conditions of multi- scenarios method | |
| CN104897543A (en) | Multi-phase permeameter and rock permeability determination method | |
| CN104266805B (en) | Constant-voltage method detection nuclear power station gas-tight door bubble-tight detection device and detection method thereof | |
| CN105699273B (en) | A kind of test device and method of steam drive coal gas Desorption And Seepage | |
| CN105158141B (en) | One kind is recycled coarse crack high speed seepage flow test device | |
| CN204461880U (en) | Core breakthrough pressure proving installation | |
| CN103245597B (en) | Hypotonic rock transient state pneumatic pressure pulses permeability survey method | |
| CN107300522B (en) | Multi-connected flexible wall permeameter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150408 |