CN103075149A - Method and device for quickly determining gas pressure of coal bed in downward superdeep borehole - Google Patents
Method and device for quickly determining gas pressure of coal bed in downward superdeep borehole Download PDFInfo
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Abstract
The invention relates to a method and device for quickly determining gas pressure of a coal bed in a downward superdeep borehole. The method comprises the steps of: carrying out high-pressure grouting on rock stratums above the coal bed to be determined through the borehole to block various cracks; then, drilling holes to the coal bed, retrieving a drill pipe and inserting a capsule hole packer with a long gas pipe and a water injection tube to the borehole part of the rock stratums on the upper part of the coal bed, and pressing water to the capsule hole packer, so that the capsule is expanded to pre-seal the borehole; then, pouring cement paste to the borehole till the cement paste fills the borehole; connecting a pressure gauge to the gas pipe; and sealing by means of the pre-sealing hole of the capsule in the initial stage, and sealing by means of solidification of cement paste in the later stage so as to determine the gas pressure of the coal bed. The method can be used to determine the gas pressure of the downward superdeep coal bed which is far from 50m, and a heading roadway project for determining the gas pressure of the coal bed can be reduced. The determining device is simple, simple and convenient to operate, immediate to read in the gauge, quick in rise of the gas pressure and accurate in result, and has wide practicality.
Description
Technical field
The present invention relates to measure method and the device thereof of coal-bed gas pressure, be particularly useful for descending extra-deep hole drilling Fast Measurement coal-bed gas pressure under the complex geological condition.
Background technology
As everyone knows, coal and Gas Outburst are a kind of dynamic phenomenons 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 the conclusion whether this coal seam coal and Gas Outburst can occur in recovery process, for definite mine design type, take in advance outburst prevention measures, improve the colliery management method, avoid the outstanding harm that brings, have important effect.In the process of carrying out the Coal Outburst evaluation, 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 measurement method that generally adopts under the coal mine at present has: 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, after boring sealed up, the boring inner end formed a pressure measurement air chamber, pipe outer end Bonding pressure table, it is stable to wait for pressure rise 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 such 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 accurately coal-bed gas pressure value.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
Technical problem: the objective of the invention is to overcome the weak point in the prior art, provide that a kind of method is easy, simple in structure, the degree of accuracy is high, be not subjected to method and the device of the descending extra-deep hole drilling Fast Measurement coal-bed gas pressure that ground water pressure affects.
Technical scheme: method and the device of descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of the present invention, it is characterized in that, comprise the steps:
Step 1: in the tunnel above descending coal seam to the coal seam direction make a call to a diameter be 120～150mm, deeply be the boring of 2～3m as pressure tap, in boring, send into the orifice tube that diameter is 115 * 5mm, the orifice tube protruded length is 200～300mm; With the high pressure flange dish
Inject between orifice tube and the rock stratum after the mortar that step 2: water: ash=0.75:1 prepares in mass ratio mixes with water glass, concentration of sodium silicate adopts the liquid of 38 Baume degrees, wherein: mortar: water glass=1:0.5 mass ratio preparation, grouting pressure reaches 6 MPa, and slip casting is to orifice tube not till the running pulp;
Step 3: after the biliquid slurry that orifice tube is reinforced solidifies 8 hours, creeping into 2.5～3.5 m with Ф 90 mm drill bit cleaning bottom of holes stops, then withdraw from drilling rod, carry out the orifice tube withstand voltage test with the high-pressure slip-casting pump priming, require withstand voltage ground water pressure greater than the locality, be not less than 30 min withstand voltage stabilization time, if do not reach 30 min withstand voltage stabilization time or pressure does not reach when requiring, grouting and reinforcing again then is until till the orifice tube withstand voltage test meets the requirements;
Step 4: after the orifice tube withstand voltage test is qualified, drill downwards along boring with Ф 75mm drill bit, stop during extremely apart from coal seam 0.4-0.6 m;
Step 5: utilize high pressure injection oar pump in boring, to inject mortar shutoff rock crack, annotate underflow after annotating first thin pulp, mass ratio by water and ash is that 2:1,1.75:1,1.5:1,1.25:1, six proportionings of 1:1,0.75:1 are injected successively, annotate at last the underflow sealing of hole of 0.75:1, grouting pressure greater than local ground water pressure or annotate 5～6 the bag cement get final product;
Step 6: after the notes oar solidifies 8 hours, creep into Ф 75mm drill bit cleaning bottom of hole, enter coal seam 1.0～1.5 m and stop boring, withdraw from drilling rod;
Step 7: be in charge of with after water injection pipe is connected capsule hole with four, send in the boring, promote capsule hole deeply to the deep of holing, until 0.5-0.8 rice on coal seam and the rock stratum interface;
Step 8: Manual pressure test pump is connected on the water injection pipe, injects the press water of 3～5MPa in the capsule hole, capsule is expanded, seal in advance boring in the deep of boring;
Step 9: in boring, pour into cement paste, until cement paste is filled whole boring;
Step 10: setting pressure table on four exposed junctions of being in charge of;
Step 11: 10～20 m play a boring in addition near pressure tap, repeat above-mentioned institute in steps;
Step 12: lead to air or other inert gases that gas pipeline is filled with 1～2 MPa by three of pressure tapping place, after the pressure measurement time is stablized 10 days greater than the gas pressure in 20 days or the pressure meter, write down two gas pressure values that pressure tap is measured, then remove pressure meter, in removing manometric process, what gush out in the observation gas pipe is gas or water
If what gush out in the pressure tap is gas, the pressure of then surveying in the pressure meter is the gas pressure in coal seam, get pressure in two pressure taps larger by the gas pressure in survey coal seam;
If what gush out in pressure tap almost is water, and pressure is larger, close with the ground water pressure of locality, show that this drill hole coal seam is moisture, the pressure of surveying is the pressure of underground water, measured result can not adopt, and is gas after another boring is opened, and then the data of surveying are the gas pressure in coal seam;
If what measure in two pressure taps all is hydraulic pressure, then needs to select else the pressure measurement place and measure, until determine the gas pressure in coal seam.
Before measuring coal-bed gas pressure, first high-pressure slip-casting is carried out in the rock stratum above the survey coal seam, to avoid crack in the rock stratum or ground water pressure on pressure measurement result's impact.
Realize the device of the descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of said method, comprise high-pressure injection pump, Manual pressure test pump, gas pressure table, gas pipe, water pipe, capsule hole, it is characterized in that: described capsule hole comprises the gas pipe that passes capsule, the two ends of capsule are respectively equipped with the fixedly plug of gas pipe, plug is provided with the joint of water filling in the capsule towards aperture one end, and is provided with the pressed joint that is fixed on the gas pipe.
Beneficial effect: the present invention is applicable to measure in the Coal Outburst qualification process gas pressure in super dark coal seam under the complex geological condition.Before mensuration, in the rock stratum, carry out first high pressure injection oar, stop up the various cracks in the rock stratum, the underground water in the simultaneously shutoff rock stratum makes it not to be connected with pressure measurement air chamber in the boring, has reduced the impact of ground water pressure; Pressure measurement tunnel and lower to the communication of super dark coal seam, reduced the roadway engineering amount of constructing for doing the pressure measurement drill site by extra-deep hole drilling; This pressure testing method fills pressure meter after coal is seen in boring simultaneously, has reduced the gas leakage amount in coal seam, has accelerated the speed that gas pressure rises at once; Above capsule, pour the cement paste sealing of hole into, increased the seal section length of boring, make the measured value of gas pressure more accurate.Whole device is simple and reliable, and the degree of accuracy is high, can reduce the ground water pressure impact under complex geological condition, the gas pressure in the descending super dark coal seam of Fast Measurement.In the outstanding qualification process at the scene, obtained good effect.Its advantage has:
1. by the water filling in the capsule of the water filling joint on the capsule hole, pre-shutoff boring can connect pressure gauge with gas pipe first before the grouting sealing of hole, the interior a large amount of loss of gas of coal body on every side prevent from holing, accelerate the gas pressure rate of climb, reduce the stabilization time of gas pressure;
2. allow capsule expand by the water filling joint water filling on the capsule hole and seal the boring deep, shutoff boring can be in the milk at an upper portion thereof, constructs long cementing section, improves the tightness of sealing of hole section, guarantees the accuracy of gas pressure measurement;
3. the initial stage seals by the pre-sealing of hole effect of capsule, and the later stage relies on cement paste to solidify sealing, can measure the gas pressure in coal seam.The method can be measured 50 meters with the gas pressure in descending super dark coal seam far away, can be reduced to the roadway engineering of measuring coal-bed gas pressure and tunneling, and sensing equipment is simple, easy and simple to handle, upper table is timely, and gas pressure rises fast, the result is accurate, has widely practicality.
Description of drawings
Fig. 1 is system layout of the present invention;
Fig. 2 is capsule hole structure chart of the present invention;
Fig. 3 is the workflow diagram of gas pressure measurement.
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 one embodiment of the present of invention are further described:
As shown in Figure 1 and Figure 2, the method of the descending extra-deep hole drilling Fast Measurement of the present invention coal-bed gas pressure, before measuring coal-bed gas pressure, high-pressure slip-casting has been carried out in rock stratum above the survey coal seam, both can improve the compaction rate of rock stratum, again can shutoff underground water, prevent that ground water pressure from affecting the mensuration of coal-bed gas pressure, concrete steps are as follows:
Step 1: in the tunnel above descending coal seam to the coal seam direction make a call to a diameter be 120～150mm, deeply be the boring of 2～3m as pressure tap, in boring, send into the orifice tube that diameter is 115 * 5mm, the orifice tube protruded length is 200～300mm; With the high pressure flange dish
Step 2: with mass ratio be with high pressure injection oar pump: inject between orifice tube and the rock stratum after the mortar of water: ash=0.75:1 mixes with water glass, concentration of sodium silicate adopts the liquid of 38 Baume degrees, wherein: mortar: water glass=1:0.5 mass ratio preparation, grouting pressure reaches 6 MPa, and slip casting is to orifice tube not till the running pulp;
Step 3: after the biliquid slurry that orifice tube is reinforced solidifies 8 hours, creep into 2.5～3.5 m with Ф 90 mm drill bit cleaning bottom of holes, then withdraw from drilling rod, carry out the orifice tube withstand voltage test with the high-pressure slip-casting pump priming, require withstand voltage ground water pressure greater than the locality, be not less than 30 min withstand voltage stabilization time, if do not reach 30 min withstand voltage stabilization time or pressure does not reach when requiring, grouting and reinforcing again then is until till the orifice tube withstand voltage test meets the requirements;
Step 4: after the orifice tube withstand voltage test is qualified, drill downwards along boring with Ф 75mm drill bit, until stop during apart from coal seam 0.4-0.6 m;
Step 5: utilize high pressure injection oar pump in boring, to carry out single fluid grouting, inject mortar shutoff rock crack, annotate underflow after annotating first thin pulp, mass ratio by water and ash is that 2:1,1.75:1,1.5:1,1.25:1, six proportionings of 1:1,0.75:1 are injected successively, annotate at last the underflow sealing of hole of 0.75:1, grouting pressure greater than local ground water pressure or annotate 5～6 the bag cement get final product, pressure reaches local ground water pressure and stablizes 30 min;
Step 6: after the notes oar solidifies 8 hours, creep into Ф 75mm drill bit cleaning bottom of hole, enter coal seam 1.0～1.5 m and stop boring, withdraw from drilling rod;
Step 7: the water filling joint 4 on the capsule hole is linked to each other with water injection pipe, gas pipe 5 is in charge of with 1.5 m long four and is linked to each other, accessing successively 1.5m long four is in charge of, four are in charge of with after water injection pipe is connected capsule hole, send in the boring, promote capsule hole deeply to the deep of holing, until 0.5-0.8 rice on coal seam and the rock stratum interface;
Step 8: Manual pressure test pump is connected on the water injection pipe, in capsule hole, injects the press water of 3～5MPa, owing to be subject to the sealing restriction of plug 1 and plug 22, capsule is expanded, seal in advance the bottom of boring; The boring that the bottom of capsule and coal seam are linked up consists of a pressure measurement air chamber, owing on the plug 22 on the capsule hole pressed joint 6 is arranged, plug 22 can shrink along gas pipe 5 and slide, and can guarantee that capsule can free wxpansion in being pressed into the process of press water.
Step 9: in boring, pour into cement paste, namely pour into cement grout on capsule hole top and carry out sealing of hole, until cement paste is filled whole boring;
Step 10: behind the sealing of hole on the change joint of four exposed junctions of being in charge of the setting pressure table, can measure the gas pressure in coal seam;
Step 11: a boring is played in addition by 10～20 m places near pressure tap, repeats above-mentioned institute in steps, measures respectively;
Step 12: lead to air or other inert gases that gas pipeline is filled with 1～2 MPa by three of pressure tapping place, when the pressure measurement time greater than the gas pressure voltage stabilizing in 20 days or the pressure meter after 10 days, write down two gas pressure values that pressure tap is measured, then remove pressure meter, in removing manometric process, what gush out in the observation gas pipe is gas or water
If what gush out in the pressure tap is gas, the pressure of then surveying in the pressure meter is the gas pressure in coal seam, get pressure in two pressure taps larger by the gas pressure in survey coal seam;
If what gush out in pressure tap almost is water, and pressure is larger, close with the ground water pressure of locality, show that this drill hole coal seam is moisture, the pressure of surveying is the pressure of underground water, measured result can not adopt, and is gas after another boring is opened, and then the data of surveying are the gas pressure in coal seam;
If what measure in two pressure taps all is hydraulic pressure, then needs to select else pressure tap and measure, until determine the gas pressure in coal seam.
In the early stage of sealing of hole, the cement paste ot-yet-hardened, the main capsule 3 that relies on of boring comes sealing of hole; After 2～3 days, boring is the cement paste sealing by solidifying mainly.
The device of descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of the present invention, mainly consisted of by high-pressure injection pump, Manual pressure test pump, gas pressure table, gas pipe, water pipe, capsule hole, described capsule hole mainly is made of plug 1, plug 22, capsule 3, water filling joint 4, gas pipe 5, pressed joint 6, and is shown in Figure 2; Gas pipe 5 passes capsule 3 and is fixed on plug 1 and the plug 22, plug 22 on one end of aperture is provided with to the water filling joint 4 of capsule 3 interior water fillings, be used for to capsule 3 interior water fillings, make its expansion, plug 22 also is provided with the fixedly pressed joint 6 of gas pipe, pressure measurement air chamber and gas pressure table that gas pipe 5 is used for linking up the deep hole place are to measure the gas pressure in coal seam; Pressed joint 6 is used for the sealing ring of clamping sleeve on gas pipe 5, and pressed joint 6 can be free to slide at gas pipe 5 but not leak, and gas pipe 5 links to each other with the pressure meter in aperture through tube connector.
Claims (3)
1. the method for a descending extra-deep hole drilling Fast Measurement coal-bed gas pressure is characterized in that, comprises the steps:
Step 1: in the tunnel above descending coal seam to the coal seam direction make a call to a diameter be 120～150mm, deeply be the boring of 2～3m as pressure tap, in boring, send into the orifice tube that diameter is 115 * 5mm, the orifice tube protruded length is 200～300mm; With the high pressure flange dish
Inject between orifice tube and the rock stratum after the mortar that step 2: water: ash=0.75:1 prepares in mass ratio mixes with water glass, concentration of sodium silicate adopts the liquid of 38 Baume degrees, wherein: mortar: water glass=1:0.5 mass ratio preparation, grouting pressure reaches 6 MPa, and slip casting is to orifice tube not till the running pulp;
Step 3: after the biliquid slurry that orifice tube is reinforced solidifies 8 hours, creeping into 2.5～3.5 m with Ф 90 mm drill bit cleaning bottom of holes stops, then withdraw from drilling rod, carry out the orifice tube withstand voltage test with the high-pressure slip-casting pump priming, require withstand voltage ground water pressure greater than the locality, be not less than 30 min withstand voltage stabilization time, if do not reach 30 min withstand voltage stabilization time or pressure does not reach when requiring, grouting and reinforcing again then is until till the orifice tube withstand voltage test meets the requirements;
Step 4: after the orifice tube withstand voltage test is qualified, drill downwards along boring with Ф 75mm drill bit, stop during extremely apart from coal seam 0.4-0.6 m;
Step 5: utilize high pressure injection oar pump in boring, to inject mortar shutoff rock crack, annotate underflow after annotating first thin pulp, mass ratio by water and ash is that 2:1,1.75:1,1.5:1,1.25:1, six proportionings of 1:1,0.75:1 are injected successively, annotate at last the underflow sealing of hole of 0.75:1, grouting pressure greater than local ground water pressure or annotate 5～6 the bag cement get final product;
Step 6: after the notes oar solidifies 8 hours, creep into Ф 75mm drill bit cleaning bottom of hole, enter coal seam 1.0～1.5 m and stop boring, withdraw from drilling rod;
Step 7: be in charge of with after water injection pipe is connected capsule hole with four, send in the boring, promote capsule hole deeply to the deep of holing, until 0.5-0.8 rice on coal seam and the rock stratum interface;
Step 8: Manual pressure test pump is connected on the water injection pipe, injects the press water of 3～5MPa in the capsule hole, capsule is expanded, seal in advance boring in the deep of boring;
Step 9: in boring, pour into cement paste, until cement paste is filled whole boring;
Step 10: setting pressure table on four exposed junctions of being in charge of;
Step 11: 10～20 m play a boring in addition near pressure tap, repeat above-mentioned institute in steps;
Step 12: lead to air or other inert gases that gas pipeline is filled with 1～2 MPa by three of pressure tapping place, after the pressure measurement time is stablized 10 days greater than the gas pressure in 20 days or the pressure meter, write down two gas pressure values that pressure tap is measured, then remove pressure meter, in removing manometric process, what gush out in the observation gas pipe is gas or water
If what gush out in the pressure tap is gas, the pressure of then surveying in the pressure meter is the gas pressure in coal seam, get pressure in two pressure taps larger by the gas pressure in survey coal seam;
If what gush out in pressure tap almost is water, and pressure is larger, close with the ground water pressure of locality, show that this drill hole coal seam is moisture, the pressure of surveying is the pressure of underground water, measured result can not adopt, and is gas after another boring is opened, and then the data of surveying are the gas pressure in coal seam;
If what measure in two pressure taps all is hydraulic pressure, then needs to select else the place and measure, until determine the gas pressure in coal seam.
2. the method for described descending extra-deep hole drilling Fast Measurement coal-bed gas pressure according to claim 1, it is characterized in that: before measuring coal-bed gas pressure, first high-pressure slip-casting is carried out in the rock stratum above the survey coal seam, to avoid crack in the rock stratum or ground water pressure on pressure measurement result's impact.
3. device of the descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of described method according to claim 1, comprise high-pressure injection pump, Manual pressure test pump, gas pressure table, gas pipe, water pipe, capsule hole, it is characterized in that: described capsule hole comprises the gas pipe that passes capsule, the two ends of capsule are respectively equipped with the fixedly plug of gas pipe, plug is provided with the joint of water filling in the capsule towards aperture one end, and is provided with the pressed joint that is fixed on the gas pipe.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103510943A (en) * | 2013-10-29 | 2014-01-15 | 华北科技学院 | Instrument for measuring initial velocity of gas discharged from deep drill hole for coal mine outburst prediction |
| 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 |
| CN103806914A (en) * | 2014-01-27 | 2014-05-21 | 冀中能源峰峰集团有限公司大淑村矿 | Coal mining method for coal and gas outburst mine |
| CN104358561A (en) * | 2014-10-16 | 2015-02-18 | 山东科技大学 | Gas pressure observation system for downstream drill hole in aqueous coal rock |
| CN104500042A (en) * | 2014-10-16 | 2015-04-08 | 山东科技大学 | Measuring method for water-containing coal and rock down drill hole gas pressure observation system |
| CN105927214A (en) * | 2016-05-19 | 2016-09-07 | 六盘水师范学院 | Accurate measuring device and measuring method for current coal seam gas pressure |
| CN106869855A (en) * | 2017-04-25 | 2017-06-20 | 中煤科工集团重庆研究院有限公司 | Full-automatic gas overrun prevention device |
| CN108106687A (en) * | 2018-02-08 | 2018-06-01 | 济南大学 | A kind of bedrock underground water drift net containing soft interlayer probes into method and double-capsule water-stop |
| CN109184672A (en) * | 2018-11-14 | 2019-01-11 | 中煤科工集团重庆研究院有限公司 | Coal seam depression angle drilling gas pressure measuring device and pressure measuring method |
| 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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| CN111677495A (en) * | 2020-05-08 | 2020-09-18 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional drilling gas measurement while drilling device, drilling tool and measurement method |
| CN111963150A (en) * | 2020-08-27 | 2020-11-20 | 安徽理工大学 | Coal bed gas pressure measuring device and using method |
| CN113818921A (en) * | 2021-09-09 | 2021-12-21 | 华北科技学院(中国煤矿安全技术培训中心) | Device and method for shortening observation time of coal bed gas pressure measurement |
| CN114856546A (en) * | 2022-04-24 | 2022-08-05 | 河南理工大学 | Ultra-long drilling self-advancing type guide drill traction capsule pressure measuring and hole sealing device and method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1511435A1 (en) * | 1987-09-18 | 1989-09-30 | Московский Горный Институт | Method of degassing coal seam |
| CN202255743U (en) * | 2011-08-26 | 2012-05-30 | 淮南矿业(集团)有限责任公司 | Coal mine underground gas pressure measuring system |
| CN102536158A (en) * | 2010-12-10 | 2012-07-04 | 淮南矿业(集团)有限责任公司 | Uphole sealing method |
-
2013
- 2013-02-19 CN CN201310052575.3A patent/CN103075149B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1511435A1 (en) * | 1987-09-18 | 1989-09-30 | Московский Горный Институт | Method of degassing coal seam |
| CN102536158A (en) * | 2010-12-10 | 2012-07-04 | 淮南矿业(集团)有限责任公司 | Uphole sealing method |
| CN202255743U (en) * | 2011-08-26 | 2012-05-30 | 淮南矿业(集团)有限责任公司 | Coal mine underground gas pressure measuring system |
Non-Patent Citations (1)
| Title |
|---|
| 王浩等: "煤层瓦斯压力测定中的钻孔注浆新技术研究", 《中国安全科学学报》 * |
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| CN103510943A (en) * | 2013-10-29 | 2014-01-15 | 华北科技学院 | Instrument for measuring initial velocity of gas discharged from deep drill hole for coal mine outburst prediction |
| 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 |
| CN103806914B (en) * | 2014-01-27 | 2015-11-11 | 冀中能源峰峰集团有限公司大淑村矿 | A kind of coal and gas outburst mine coal-mining method |
| CN103806914A (en) * | 2014-01-27 | 2014-05-21 | 冀中能源峰峰集团有限公司大淑村矿 | Coal mining method for coal and gas outburst mine |
| CN104358561A (en) * | 2014-10-16 | 2015-02-18 | 山东科技大学 | Gas pressure observation system for downstream drill hole in aqueous coal rock |
| CN104500042A (en) * | 2014-10-16 | 2015-04-08 | 山东科技大学 | Measuring method for water-containing coal and rock down drill hole gas pressure observation system |
| CN104358561B (en) * | 2014-10-16 | 2016-10-12 | 山东科技大学 | Aqueous coal petrography descending drilling gas pressure observation system |
| CN104500042B (en) * | 2014-10-16 | 2017-05-03 | 山东科技大学 | Measuring method for water-containing coal and rock down drill hole gas pressure observation system |
| CN105927214A (en) * | 2016-05-19 | 2016-09-07 | 六盘水师范学院 | Accurate measuring device and measuring method for current coal seam gas pressure |
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