CN103075149B - 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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- CN103075149B CN103075149B CN201310052575.3A CN201310052575A CN103075149B CN 103075149 B CN103075149 B CN 103075149B CN 201310052575 A CN201310052575 A CN 201310052575A CN 103075149 B CN103075149 B CN 103075149B
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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 the method and device thereof that measure coal-bed gas pressure, descending extra-deep hole drilling Fast Measurement coal-bed gas pressure under being particularly useful for complex geological condition.
Background technology
As everyone knows, coal and gas prominent occurs in a kind of dynamic phenomenon containing in the cherry coal of high pressure gas, once occur outstanding, and the life of frequent entail dangers to coal miner.In advance the coal seam in certain limit being identified, providing the conclusion whether this coal seam coal and gas prominent can occur in recovery process, for determining mine design type, take outburst prevention measures in advance, improve colliery management method, avoid the outstanding harm brought, there is important effect.In the process of carrying out Coal Outburst qualification, usually will measure the gas pressure in coal seam, this weighs a whether outstanding important indicator of coal seam.The gas pressure measurement method that current underground coal mine generally adopts has: 1) yellow mud method of pore sealing; 2) cement mortar method of pore sealing; 3) mucus hole packer method, is drilled to coal seam by in-plant tunnel, is arranged in the borehole by pipe, after boring is sealed up, boring inner end forms a pressure measurement air chamber, pipe outer end Bonding pressure table, wait for pressure increase quietly to stablize, the gas pressure in coal seam can be recorded.In these method for sealing, better with mucus hole packer method effect, its principle is that hole packer is placed in 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 pressure measurement air chamber does not leak, shortcoming is that the distance of shutoff is at about 10 ~ 20 meters.The advantage of cement mortar sealing of hole is can shutoff comparatively gun drilling, and it is comparatively slow that shortcoming is that cement mortar is solidified, and the gas in solidificating period pressure measurement air chamber easily scatters and disappears, and pressure microsensor is longer.Particularly when running into complex geological condition, as rock crack is grown, in rock stratum, ground water pressure is easily ganged up with coal hole, and when coal seam is in below far away, pressure measurement place, employing said method is all difficult to record coal-bed gas pressure value accurately.Therefore, under mensuration complex geological condition, the gas pressure in descending ultra-deep coal seam is the on-the-spot a great problem being badly in need of solving.
Summary of the invention
Technical problem: the object of the invention is the weak point overcome in prior art, the method for the descending extra-deep hole drilling Fast Measurement coal-bed gas pressure provide that a kind of method is easy, structure is simple, the degree of accuracy is high, not affecting by ground water pressure and device.
Technical scheme: the method for descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of the present invention and device, is characterized in that, comprise the steps:
Step one: make a call to direction, coal seam in the tunnel above descending coal seam a diameter be 120 ~ 150mm, be deeply the boring of 2 ~ 3m as pressure tap, to boring in send into the orifice tube that diameter is 115 × 5mm, orifice tube protruded length is 200 ~ 300mm; With high pressure flange dish
Step 2: with water: the mortar that ash=0.75:1 prepares in mass ratio injects between orifice tube and rock stratum after mixing 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 the outer not running pulp of orifice tube;
Step 3: after the dual slurry of orifice tube reinforcing solidifies 8 hours, creep into 2.5 ~ 3.5 m with Ф 90 mm drill bit cleaning bottom of hole to stop, then drilling rod is exited, orifice tube withstand voltage test is carried out with high-pressure slip-casting pump priming, require withstand voltagely to be greater than local ground water pressure, withstand voltage stabilization time is not less than 30 min, does not reach when requiring if do not reach 30 min or pressure withstand voltage stabilization time, then grouting and reinforcing again, till orifice tube withstand voltage test meets the requirements;
Step 4: after orifice tube withstand voltage test is qualified, drills downwards along boring with Ф 75mm drill bit, stops to during distance coal seam 0.4-0.6 m;
Step 5: utilize high-pressure injection pump to inject mortar shutoff rock crack in boring, underflow is noted after first noting thin pulp, by water with ash mass ratio be that 2:1,1.75:1,1.5:1,1.25:1,1:1,0.75:1 six proportionings are injected successively, finally note the underflow sealing of hole of 0.75:1, grouting pressure is greater than local ground water pressure or note 5 ~ 6 bag cement;
Step 6: after slip casting solidifies 8 hours, creeps into Ф 75mm drill bit cleaning bottom of hole, enters coal seam 1.0 ~ 1.5 m and stops boring, exit drilling rod;
Step 7: be in charge of with four and be connected after capsule hole with water injection pipe, sends in boring, promotes capsule hole deeply to deep of holing, until 0.5-0.8 rice on coal seam and rock stratum interface;
Step 8: be connected to by Manual pressure test pump on water injection pipe, injects the press water of 3 ~ 5MPa, capsule is expanded in capsule hole, seals boring in advance in the deep of boring;
Step 9: pour into cement paste, until whole boring filled by cement paste in boring;
Step 10: setting pressure table on four exposed junctions be in charge of;
Step 11: 10 ~ 20 m separately play a boring near pressure tap, repeat above-mentioned 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 gas pressure be greater than in 20 days or pressure meter stablizes 10 days, write down the gas pressure value measured by two pressure taps, then pressure meter is removed, in the manometric process of dismounting, what gush out in observation gas pipe is gas or water
If what gush out in pressure tap is gas, then the pressure surveyed in 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 a pressure tap is almost water, and pressure is larger, close with the ground water pressure of locality, show that this drill hole coal seam is moisture, the pressure surveyed is the pressure of underground water, measured result can not adopt, and another boring is gas after opening, then surveyed data are the gas pressure in coal seam;
If what measure in two pressure taps is all hydraulic pressure, then alternative pressure measurement place is needed to measure, until determine the gas pressure in coal seam.
Before mensuration coal-bed gas pressure, first high-pressure slip-casting is carried out to the rock stratum above surveyed coal seam, to avoid in rock stratum crack or ground water pressure on the impact of pressure measurement result.
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 through capsule, the two ends of capsule are respectively equipped with the plug of fixing gas pipe, plug is provided with the joint of water filling in capsule towards one end, aperture, and is provided with the pressed joint be fixed on gas pipe.
Beneficial effect: the present invention is applicable to measure in Coal Outburst qualification process the gas pressure in ultra-deep coal seam under complex geological condition.Before the assay, first in rock stratum, carry out high-pressure slip-casting, the various cracks in blocking rock stratum, the underground water simultaneously in shutoff rock stratum, make it not to be connected with the pressure measurement air chamber in boring, decrease the impact of ground water pressure; By extra-deep hole drilling, pressure measurement tunnel and the lower coal seam to ultra-deep being linked up, decreasing the roadway engineering amount of constructing for doing pressure measurement drill site; This pressure testing method fills pressure meter after coal is shown in boring at once simultaneously, decreases the gas leakage amount in coal seam, accelerates the speed that gas pressure rises; Above capsule, pour cement paste sealing of hole into, add 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 ground water pressure impact, the gas pressure in the descending ultra-deep coal seam of Fast Measurement under complex geological condition.In outstanding qualification process at the scene, achieve good effect.Its advantage has:
1. pass through to the water filling joint on capsule hole to water filling in capsule, pre-shutoff boring, first can connect pressure meter by gas pipe, prevent a large amount of loss of gas of holing in surrounding medium before grouting sealing of hole, 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 capsule hole and seal boring deep, shutoff is holed, and can be in the milk at an upper portion thereof, construct longer cementing section, improves the tightness of sealing of hole section, guarantees the accuracy of gas pressure measurement;
3. the initial stage is by the pre-sealing of hole effect sealing of capsule, and the later stage relies on cement slurry sets sealing, can measure the gas pressure in coal seam.The method can measure 50 meters with the gas pressure in descending ultra-deep coal seam far away, and can be reduced to and measure coal-bed gas pressure and the roadway engineering that tunnels, sensing equipment is simple, easy and simple to handle, upper table is timely, and gas pressure rises fast, result is accurate, has practicality widely.
Accompanying drawing explanation
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.
In figure: 1-plug-, 2-plug two, 3-capsule, 4-water filling joint, 5-gas pipe, 6-pressed joint.
Detailed description of the invention
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 present invention's descending extra-deep hole drilling Fast Measurement coal-bed gas pressure, before mensuration coal-bed gas pressure, high-pressure slip-casting has been carried out to the rock stratum above surveyed coal seam, both the compaction rate of rock stratum can have been improved, again can shutoff underground water, prevent ground water pressure from affecting the mensuration of coal-bed gas pressure, concrete steps are as follows:
Step one: make a call to direction, coal seam in the tunnel above descending coal seam a diameter be 120 ~ 150mm, be deeply the boring of 2 ~ 3m as pressure tap, to boring in send into the orifice tube that diameter is 115 × 5mm, orifice tube protruded length is 200 ~ 300mm; With high pressure flange dish
Step 2: with high-pressure injection pump by mass ratio be: water: the mortar of ash=0.75:1 mixes rear injection between orifice tube and rock stratum 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 the outer not running pulp of orifice tube;
Step 3: after the dual slurry of orifice tube reinforcing solidifies 8 hours, 2.5 ~ 3.5 m are crept into Ф 90 mm drill bit cleaning bottom of hole, then drilling rod is exited, orifice tube withstand voltage test is carried out with high-pressure slip-casting pump priming, require withstand voltagely to be greater than local ground water pressure, withstand voltage stabilization time is not less than 30 min, does not reach when requiring if do not reach 30 min or pressure withstand voltage stabilization time, then grouting and reinforcing again, till orifice tube withstand voltage test meets the requirements;
Step 4: after orifice tube withstand voltage test is qualified, drills downwards along boring with Ф 75mm drill bit, until stop during distance coal seam 0.4-0.6 m;
Step 5: utilize high-pressure injection pump to carry out single fluid grouting in boring, inject mortar shutoff rock crack, underflow is noted after first noting thin pulp, by water with ash mass ratio be that 2:1,1.75:1,1.5:1,1.25:1,1:1,0.75:1 six proportionings are injected successively, finally note the underflow sealing of hole of 0.75:1, grouting pressure is greater than local ground water pressure or note 5 ~ 6 bag cement, and pressure reaches local ground water pressure and stablizes 30 min;
Step 6: after slip casting solidifies 8 hours, creeps into Ф 75mm drill bit cleaning bottom of hole, enters coal seam 1.0 ~ 1.5 m and stops boring, exit drilling rod;
Step 7: the water filling joint 4 on capsule hole is connected with water injection pipe, gas pipe 5 is in charge of with 1.5 m long four and is connected, access 1.5m long four to be successively in charge of, four are in charge of and are connected after capsule hole with water injection pipe, send in boring, promote capsule hole deeply to deep of holing, until 0.5-0.8 rice on coal seam and rock stratum interface;
Step 8: be connected to by Manual pressure test pump on water injection pipe, injects the press water of 3 ~ 5MPa in capsule hole, owing to being subject to the sealing restriction of plug 1 and plug 22, capsule being expanded, seals the bottom of boring in advance; The boring that the bottom of capsule and coal seam are linked up forms a pressure measurement air chamber, and due to the plug 22 on capsule hole having pressed joint 6, plug 22 can shrink along gas pipe 5 and slide, and can guarantee that capsule can free wxpansion in the process of press-in press water.
Step 9: pour into cement paste in boring, namely pour into cement grout on capsule hole top and carry out sealing of hole, until whole boring filled by cement paste;
Step 10: after sealing of hole on the change joint of four exposed junctions be in charge of setting pressure table, the gas pressure in coal seam can be measured;
Step 11 a: boring is separately played by 10 ~ 20 m places near pressure tap, repeat above-mentioned in steps, measure 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, gas pressure voltage stabilizing in 20 days or pressure meter is greater than after 10 days when the pressure measurement time, write down the gas pressure value measured by two pressure taps, then pressure meter is removed, in the manometric process of dismounting, what gush out in observation gas pipe is gas or water
If what gush out in pressure tap is gas, then the pressure surveyed in 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 a pressure tap is almost water, and pressure is larger, close with the ground water pressure of locality, show that this drill hole coal seam is moisture, the pressure surveyed is the pressure of underground water, measured result can not adopt, and another boring is gas after opening, then surveyed data are the gas pressure in coal seam;
If what measure in two pressure taps is all hydraulic pressure, then alternative pressure tap is needed to measure, until determine the gas pressure in coal seam.
In the early stage of sealing of hole, cement paste ot-yet-hardened, the main capsule 3 that relies on of boring carrys out sealing of hole; After 2 ~ 3 days, the cement paste sealing of boring mainly by solidifying.
The device of descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of the present invention, form primarily of high-pressure injection pump, Manual pressure test pump, gas pressure table, gas pipe, water pipe, capsule hole, described capsule hole is formed, shown in Fig. 2 primarily of plug 1, plug 22, capsule 3, water filling joint 4, gas pipe 5, pressed joint 6; Gas pipe 5 is fixed on plug 1 and plug 22 through capsule 3, the water filling joint 4 of water filling in capsule 3 is provided with towards the plug 22 on one end, aperture, for to water filling in capsule 3, make it expand, plug 22 is also provided with the pressed joint 6 of fixing gas pipe, gas pipe 5 for linking up pressure measurement air chamber and the gas pressure table at deep hole place, to measure the gas pressure in coal seam; Pressed joint 6 is for the sealing ring of clamping sleeve on gas pipe 5, and pressed joint 6 can be free to slide but not leak on gas pipe 5, and gas pipe 5 is connected with the pressure meter in aperture through tube connector.
Claims (1)
1. a method for descending extra-deep hole drilling Fast Measurement coal-bed gas pressure, is characterized in that, comprise the steps:
Step one: make a call to direction, coal seam in the tunnel above descending coal seam a diameter be 120 ~ 150mm, be deeply the boring of 2 ~ 3m as pressure tap, to boring in send into the orifice tube that diameter is 115 × 5mm, orifice tube protruded length is 200 ~ 300mm; With high pressure flange dish
Step 2: with water: the mortar that ash=0.75:1 prepares in mass ratio injects between orifice tube and rock stratum after mixing 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 the outer not running pulp of orifice tube;
Step 3: after the dual slurry of orifice tube reinforcing solidifies 8 hours, creep into 2.5 ~ 3.5 m with Ф 90 mm drill bit cleaning bottom of hole to stop, then drilling rod is exited, orifice tube withstand voltage test is carried out with high-pressure slip-casting pump priming, require withstand voltagely to be greater than local ground water pressure, withstand voltage stabilization time is not less than 30 min, does not reach when requiring if do not reach 30 min or pressure withstand voltage stabilization time, then grouting and reinforcing again, till orifice tube withstand voltage test meets the requirements;
Step 4: after orifice tube withstand voltage test is qualified, drills downwards along boring with Ф 75mm drill bit, stops to during distance coal seam 0.4-0.6 m;
Step 5: utilize high-pressure injection pump to inject mortar shutoff rock crack in boring, underflow is noted after first noting thin pulp, by water with ash mass ratio be that 2:1,1.75:1,1.5:1,1.25:1,1:1,0.75:1 six proportionings are injected successively, finally note the underflow sealing of hole of 0.75:1, grouting pressure is greater than local ground water pressure or note 5 ~ 6 bag cement;
Step 6: after slip casting solidifies 8 hours, creeps into Ф 75mm drill bit cleaning bottom of hole, enters coal seam 1.0 ~ 1.5 m and stops boring, exit drilling rod;
Step 7: be in charge of with four and be connected after capsule hole with water injection pipe, sends in boring, promotes capsule hole deeply to deep of holing, until 0.5-0.8 rice on coal seam and rock stratum interface;
Step 8: be connected to by Manual pressure test pump on water injection pipe, injects the press water of 3 ~ 5MPa, capsule is expanded in capsule hole, seals boring in advance in the deep of boring;
Step 9: pour into cement paste, until whole boring filled by cement paste in boring;
Step 10: setting pressure table on four exposed junctions be in charge of;
Step 11: 10 ~ 20 m separately play a boring near pressure tap, repeat above-mentioned 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 gas pressure be greater than in 20 days or pressure meter stablizes 10 days, write down the gas pressure value measured by two pressure taps, then pressure meter is removed, in the manometric process of dismounting, what gush out in observation gas pipe is gas or water
If what gush out in pressure tap is gas, then the pressure surveyed in 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 a pressure tap is almost water, and pressure is larger, close with the ground water pressure of locality, show that this drill hole coal seam is moisture, the pressure surveyed is the pressure of underground water, measured result can not adopt, and another boring is gas after opening, then surveyed data are the gas pressure in coal seam;
If what measure in two pressure taps is all hydraulic pressure, then alternative place is needed to measure, until determine the gas pressure in coal seam.
2. the device of the descending extra-deep hole drilling Fast Measurement coal-bed gas pressure of 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 through capsule, the two ends of capsule are respectively equipped with the plug of fixing gas pipe, plug is provided with the joint of water filling in capsule towards one end, aperture, and is provided with the pressed joint be fixed on gas pipe.
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| CN201310052575.3A CN103075149B (en) | 2013-02-19 | 2013-02-19 | Method and device for quickly determining gas pressure of coal bed in downward superdeep borehole |
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| CN201310052575.3A CN103075149B (en) | 2013-02-19 | 2013-02-19 | Method and device for quickly determining gas pressure of coal bed in downward superdeep borehole |
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| CN103075149B true CN103075149B (en) | 2015-06-17 |
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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 |
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| CN111963150B (en) * | 2020-08-27 | 2023-08-22 | 安徽理工大学 | Coal bed gas pressure measuring device and using method |
| CN113818921B (en) * | 2021-09-09 | 2023-08-15 | 华北科技学院(中国煤矿安全技术培训中心) | Device and method for shortening coal bed gas pressure measurement observation time |
| 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 |
|---|
| 煤层瓦斯压力测定中的钻孔注浆新技术研究;王浩等;《中国安全科学学报》;20110630;第21卷(第6期);78-82 * |
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