CN107762549B - The rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval - Google Patents
The rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval Download PDFInfo
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- CN107762549B CN107762549B CN201710961068.XA CN201710961068A CN107762549B CN 107762549 B CN107762549 B CN 107762549B CN 201710961068 A CN201710961068 A CN 201710961068A CN 107762549 B CN107762549 B CN 107762549B
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- 238000005553 drilling Methods 0.000 title claims abstract description 105
- 239000011435 rock Substances 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 44
- 230000000903 blocking effect Effects 0.000 claims abstract description 23
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 241001149930 Protura <class> Species 0.000 claims abstract description 8
- 238000005259 measurement Methods 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 39
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 28
- 238000012360 testing method Methods 0.000 claims description 21
- 239000000523 sample Substances 0.000 claims description 17
- 239000003245 coal Substances 0.000 claims description 9
- 230000000694 effects Effects 0.000 claims description 9
- 238000005086 pumping Methods 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 230000001141 propulsive effect Effects 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000004880 explosion Methods 0.000 claims description 4
- 238000004458 analytical method Methods 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims description 2
- 239000007924 injection Substances 0.000 claims description 2
- 238000000605 extraction Methods 0.000 abstract description 27
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 78
- 208000002925 dental caries Diseases 0.000 description 15
- 238000010586 diagram Methods 0.000 description 11
- 239000002775 capsule Substances 0.000 description 8
- 230000007812 deficiency Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 230000003667 anti-reflective effect Effects 0.000 description 2
- 235000019994 cava Nutrition 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 210000004262 dental pulp cavity Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices or the like
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Geophysics (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses the rock body quality of mine drilling anti-reflection formula gas drainage measuring methods in multistage interval, it solves the problems, such as that leakproofness is poor in the prior art, it is high-efficient with extraction, measure beneficial effect simple to operate, its scheme is as follows: measuring system using a kind of anti-reflection formula gas drainage in rock body quality of mine drilling multistage interval, the measurement system includes: at least three first closure units, and two of them first block unit and are respectively arranged on both ends, and the first closure unit of head end is connect with conehead；At least two second block unit, are set to each adjacent two first and block between unit, and the second closure unit and middle part, head end first are blocked and connected by collection tube between unit, and plugging device and tail portion first block and communicating pipe are arranged between unit；For being passed through the side leakage valve for blocking medium into drilling；Supply operating mechanism blocks unit with tail portion first and is detachably connected, and the measuring means for collecting gas.
Description
Technical field
The present invention relates to rock body quality of mine hole pumping and mining technical fields, anti-reflection more particularly to rock body quality of mine drilling multistage interval
Formula gas drainage measuring method.
Background technique
Gas is the adverse factor in coal production, it not only pollutes air, but also when content increases, meet fire can generate it is quick-fried
Fried, gas is the mixed gas of the compositions such as the methane, carbon dioxide and nitrogen escaped from coal and country rock, and gas pressure and gas contain
Amount is the important parameter for indicating coal-bed gas occurrence status.And the measurement of coal-bed gas pressure and gas bearing capacity, it not only facilitates
The rule studying the preservation of coal-bed gas and gushing out, and gas drainage can turn bane into boon, and the resource as coal association adds
With development and utilization.The drilling of setting quantity is usually drilled on coal body in the prior art, by vacuum pump come extraction, in extraction
Need to block drilling in journey, it is excessive to avoid methane gas, frequently with method be into drilling fill concrete fill
Filling chock material installs 2 block baffles in the borehole, forms sealing space, and be perfused into this sealing space by individual pipeline
Filler, there are many defects for existing closure mode, such as:
1) structure is complicated for plugging device in pipeline, causes assembly difficulty, and is easy to cause closure medium back flow, Jin Erying
It rings to closure rate；
2) can not drill outside to collection tube the closure set, can be blocked to drilling, and not can guarantee drilling
It blocks and is orderly blocked with the cavity that drills outside collection tube, not can guarantee and block quality in drilling；
3) it blocks and is blocked frequently with both ends, cause plugging effect poor, not can guarantee the accuracy for detecting gas；
4) gas pumping pipeline is mutually indepedent with blocking pipe in drilling, and has more root canal roads (generally 2~3) to be easy hair
Raw pipeline winds problem, and not only sealing of hole inefficiency, troublesome in poeration, and stability is poor；
5) it blocks medium and mostly uses solid dielectric, after cured, be easy to happen crack phenomenon or solid material can not be right
The wall of a borehole surrounding rock body crack of correspondent section is sealed；
6) traditional gas drainage system is mostly expendable consumed product, cannot generally be reused, and gas single is improved
Extraction cost；
7) extraction equipment is mostly unistage type structure, if too long, middle part drilling is easy to collapse, and influences extracting result, if too short,
Each rock body drilled gas drainage range is smaller, if if carrying out the acquisition of depth gas, needing other drillings, drilling exploitation is multiple
If, undoubtedly further increase extraction cost；
8) existing to single hop gas drainage, Yin Wasi is collected in rock body quality of mine, and rock mass is firm, and gas must not be released
It puts or if rate of release is relatively slow, to not can guarantee the accuracy of acquisition.
9) operating procedure is complicated, is not easy to realize.
It can be seen that existing issue is up for further solving.
Summary of the invention
For overcome the deficiencies in the prior art, the present invention provides the rock body quality of mine drilling anti-reflection formula gas drainages in multistage interval
Measuring method, which blocks and extraction is via same pipeline, easy to operate, avoids more root canal roads winding problems, and
And plugging effect is good, ensure that the efficiency that gas obtains.
The concrete scheme of the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval is as follows:
The rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval, using between a kind of rock body quality of mine drilling multistage
System is measured every anti-reflection formula gas drainage, which includes:
At least three first block unit, and two of them first block unit and are respectively arranged on both ends, and the first envelope of head end
Stifled unit is connect with conehead；
At least two second block unit, are set to each adjacent two first and block between unit, head end second blocks unit
It blocks with middle part, head end first and is connect by collection tube between unit, collection tube side wall is equipped with several and has one-way sealing
Second aperture of part, and tail portion second blocks unit and tail portion first blocks and communicating pipe is arranged between unit；
Drill interior collection tube or communicating pipe are sent into for that will block medium in side leakage valve, the side for blocking unit set on second
Outside, side leakage valve, the side for blocking unit set on second, for the interior collection tube of medium feeding drilling will to be blocked or outside communicating pipe, side
Leakage valve includes basal body pipe, blocks unit fastening inside basal body pipe side with described second, the basal body pipe other side can with collection tube or
Communicating pipe connection, and the side ring is arranged check valve in third aperture, blocks medium and pass through pipe at least two third apertures are equipped with
After road enters basal body pipe, entered in drilling by check valve, filling drilling；
For collecting the measuring means of gas, unit is blocked with tail portion first and is detachably connected.
Measurement system further includes supply operating mechanism, blocks unit with tail portion first and is detachably connected to communicating pipe and to adopt
The closure medium of setting pressure is provided in collector, blocks the pressure adjustable section of medium, to realize that spaced pressure is anti-reflection to rock mass；
In the assay method, system is measured, it can be achieved that multiple borehole sealing by using extraction, and because of side leakage valve
Setting not only effectively seals the outer end side that drills, but also can destroy to drilling mid portion rock mass, so that device in Gas
Body is sufficiently discharged, and ensure that extraction efficiency, and by the detachable setting of supply operating mechanism and measuring means, is blocked
With extraction via same pipeline, reduce the quantity of simultaneous closure and extraction pipeline in conventional borehole, so that measurement behaviour
Make simple and easy.
Further, one-way seals are centrum in collection tube, are set in collection tube at the top of centrum, including two sections, from list
It is separated to sealing element centrum middle vertical plane, plays the swollen stage in flexible blockage medium in this way, avoided blocking in medium flow direction drilling, adopt
It not only can enter collection tube during collection in order to methane gas, after the completion of playing swollen and anti-reflection process, drill outside interior collection tube
Have setting pressure closure medium after forming anti-reflection effect to rock cranny, can be opened by one-way seals, enter
Collection tube discharge, to avoid the influence acquired to methane gas.
Further, the second closure unit includes the second tubular configured joint, the internal flowing for being used to block medium, and second
Tubular configured joint is set on the inside of side leakage valve, and excircle is equipped with elastic closeouts, and the second tubular configured joint side wall is provided with through-hole, in the through-hole
Setting the 4th switch in place's after closure medium enters the second tubular configured joint by pipeline, enters the second tubulose by the 4th switch and connects
Between head and elastic closeouts, elastic closeouts, which swell, plays plugging action.
4th switch includes that longitudinal cross-section is in T-shaped nut cap, passes through first tubular configured joint in the middle part of nut cap and is arranged,
And support, support and the first pipe are also set up between nut cap and the first tubular configured joint by being cased with the first spring in one's ear after passing through
Straight coupling is fixed and support side wall is provided with the first aperture, and support and lid upper surface can be annulus shape, the inside of nut cap
Size and support external dimensions cooperate, and under normality, nut cap is in close state under the action of the first spring, by chance seal up the
One aperture, when filling and blocking medium, the closure medium for setting pressure jacks up nut cap upwards, forms access with the first aperture, this
When block medium and enter in the cavity of the first tubular configured joint and closeouts (blocking capsule), closeouts rise it is swollen, and because of the first spring
Setting, in collection tube or runner pipe block medium back flow when, avoid the first closure unit shrink, guarantee that sealed condition is not easy
Deformation.
Further, the side leakage valve includes basal body pipe, blocks unit with described second inside basal body pipe side and fastens, the
Two tubular configured joints are set on the inside of side leakage valve, and the basal body pipe other side can be connect with collection tube or communicating pipe, and the side ring is to equipped with extremely
Check valve is arranged in third aperture in few two third apertures, blocks after medium enters basal body pipe by pipeline, by check valve into
Enter in drilling, filling drilling.
Further, the check valve includes the ball in third aperture, and second spring is arranged in ball side,
Third apertured end setting adjusting nut is contacted with second spring, and basal body pipe is connect with the side of adjusting nut with communicating pipe,
And third aperture is symmetrical arranged relative to the central axis of basal body pipe, and the cracking pressure of second spring is greater than opening for the 4th switch
Open pressure, in this way after blocking drilling, then the interior crack that drill carry out it is appropriate anti-reflection；
Further, the third aperture is communicated with the 4th aperture, is blocked after medium enters in basal body pipe and is opened by third
Hole enters the 4th aperture, hence into drilling.
Further, second tubular configured joint both ends internal diameter is greater than middle part internal diameter, and middle part size is less than the size at both ends,
And both ends are respectively provided with step for the elastic closeouts to be arranged.
Described first to block unit include the first tubular configured joint, and elastic closeouts are arranged outside the first tubular configured joint, the
One tubular configured joint side wall is equipped with the 4th switch, and closure medium enters the first tubulose by the 4th switch of the first tubular configured joint opening and connects
Space between head and elastic closeouts, elastic closeouts, which swell, plays plugging action.
Both ends diameter is greater than mid diameter inside first tubular configured joint, and the first tubular configured joint is in both ends raised central portion
The structure of recess, and the first tubular configured joint both ends high spot is respectively provided with step, supports closeouts, closeouts wrapping by the step
And it is fixed on the first tubular configured joint center.For being connected with collection tube or communicating pipe inside first tubular configured joint.
Further, the tail portion first blocks unit and is detachably connected with propulsive mechanism.
The propulsive mechanism includes hollow drill and the drilling machine that connect with drilling rod, and drilling machine drives extraction system to exist by drilling rod
It moves ahead in drilling.
Further, the measuring means includes blocking the collecting tank that unit or drilling rod are detachably connected with tail portion first；
It is blocked in collecting tank with tail portion first and electronic pressure gage and gas pressure table is set in the pipeline that unit is connect.
The closure medium tank blocks unit with drilling rod or tail portion first by pipeline and is detachably connected, and sets in the pipeline
Pressure gauge and flowmeter are set, and second switch and first switch are set on pipeline, second switch is set to first switch front, leads to
Cross second switch discharge collection tube and communicating pipe in closure medium, first switch be responsible for external flexible block medium confession with
Stop.
In supply operating mechanism, jointed rod and the pipeline for blocking medium tank are hose, and second switch is set to flowmeter
Front side, in addition blocked on the pipeline and also set up first switch between medium tank and pressure gauge to control the stream for blocking medium tank
It is dynamic；Moreover, pipeline is supported by support frame.
The above-mentioned rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval, the specific steps are as follows:
1) it beats mash gas pumping drilling: beating mash gas pumping drilling into top plate or bottom plate coal and rock in tunnel；
2) installation test probe: the installation test probe in tunnel, and test probe is sent to setting regions in drilling；
3) closing drilling: unit is blocked by tail portion first and blocks unit, collection tube, middle part first to communicating pipe, second
It blocks to be sent into unit, the second closure unit and the closure unit of head end first and blocks medium, the first closure unit and the second closure
Unit, which swells, seals the segment section of drilling；
The pressure for blocking medium is continued growing, medium is blocked and is entered in drilling by side leakage valve, formation compartment is anti-reflection,
After the completion, medium discharge will be blocked in drilling；
4) Gas explosion burns are measured: after blocking medium flow field sky in pipe to be collected and communicating pipe, the closure unit of tail portion first being led to
It crosses pipeline to connect with collecting tank, after setting time, analysis is carried out to methane gas in collecting tank.
For overcome the deficiencies in the prior art, the present invention also provides a kind of rock body quality of mine drilling anti-reflection formulas watt in multistage interval
Side leakage valve is arranged in this extraction measuring method at a certain section of collection tube, the injection on the outside of collection tube into drilling by side leakage valve
The closure medium for setting pressure, rock body quality of mine crack is carried out it is appropriate anti-reflection, in order to the release of methane gas, and this method
In it is multiple closure play the role of support drilling, prevent drill hole caves problem caused by long range extraction, rise to a certain extent
To supporting role, using the anti-reflection mode of compartment, not all anti-reflection purpose is the pickup area in order to reache a certain level
Rock mass antireflective effect, and avoid causing drill hole caves problem because of the anti-reflection disturbance to drilling as far as possible.
Compared with prior art, the beneficial effects of the present invention are:
1, by the setting of the 4th switch, the flow direction for blocking medium is effectively ensured, and then ensure that plugging effect, leads to
Cross the setting of second spring in side leakage valve, after realizing each node closing of multisection type, then to the part outside communicating pipe in drilling into
The effective demeanour of row, ensure that orderly progress, improves whole stability.
2, can be achieved the anti-reflection mode of compartment, i.e., using flexible blockage medium to No. two acquisition cavity surrounding rock body cracks into
Row pressurization is anti-reflection, and the rear acquired pipe outflow of flexible blockage medium had both increased to extraction rock cranny permeability, and improved extraction
Effect accelerates extraction rate, and protects the integrality of rock body drilled to a certain extent.
3, integral type extraction structure is used in pumping method, makes to block and extraction is via same pipeline, reduce traditional brill
The quantity (only 1) of simultaneous closure and extraction pipeline in hole, solves the problems, such as drilling interior conduit coiling, simplifies and be
Structure of uniting and closure process, improve closure efficiency.
4, unit, the second closure unit and the triple closure modes of sealing cavity are blocked using first, cooperation flexible blockage is situated between
Matter not only enhances borehole sealing effect, but also sealing function is played in the surrounding rock body crack that can drill to seal section, can be into one
Walk improvement effect.
5, equipment uses multisection type extraction plugging structure, not only expands the extraction range or length of disposable rock mass gas
Degree, and since multiple first or seconds block supporting role of the unit to borehole wall, it is able to suppress a wide range of gas drainage
Influence of the borehole collapse to gas drainage in the process.
6, it using Demountable, is conveniently replaceable in failure, lays the foundation for stability measurement.
7 and the setting of whole system also facilitate the taking-up of extraction system after the completion of operation, and then realize repeatable
It utilizes, reduces single extraction cost.
8, whole operation step, it is simple and reliable, it is easy to operate.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present application, and the application's shows
Meaning property embodiment and its explanation are not constituted an undue limitation on the present application for explaining the application.
Fig. 1 is the general structure schematic diagram of the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Fig. 2 is gas drainage status diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Fig. 3 is test probe structure schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Fig. 4 is conehead structural schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Fig. 5 is the first closure cellular construction signal in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval
Figure；
Fig. 6 is the 4th switch structure diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Fig. 7 is collection tube structural schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Fig. 8 is the second aperture and one-way sealing strip of paper used for sealing in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval
Structural schematic diagram；
Fig. 9 is communicating tube structure schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Figure 10 is that the second closure cellular construction shows in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval
It is intended to；
Figure 11 is side leakage valve arrangement schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Figure 12 is part system schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
Figure 13 is one-way seals schematic diagram in the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval；
In figure, 1, coal and rock, 2, drilling, 3, conehead, the 4, first closure unit, the 5, second closure unit, 6, sealing cavity,
701, No.1 acquisition cavity, 702, No. two acquisition cavitys, 703, No. three acquisition cavitys, 8, communicating pipe, 9, collection tube, 10, drilling rod,
11, hose, 12, drilling machine, 13, supply station, 14, first switch, 15, pressure gauge, 16, flowmeter, 17, second switch, 18,
Collection station, 19, third switch, 20, gas pressure table, 21, electronic pressure gage, 22, collecting tank, 23, unidirectional stop valve,
24, flexible blockage medium, 25, side leakage valve, the 26, second tubular configured joint, 27, closure capsule, 28, nut cap, the 29, first spring, 30,
First aperture, the 31, second aperture, 32, one-way sealing strip of paper used for sealing, 33, basal body pipe, 34, ball, 35, second spring, 36, third opens
Hole, 37, adjusting nut, the 38, the 4th switch, the 39, first tubular configured joint.
Specific embodiment
It is noted that following detailed description is all illustrative, it is intended to provide further instruction to the application.Unless another
It indicates, all technical and scientific terms used herein has usual with the application person of an ordinary skill in the technical field
The identical meanings of understanding.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
As background technique is introduced, the deficiencies in the prior art, in order to solve technical problem as above, this Shen
It please propose the rock body quality of mine drilling anti-reflection formula gas drainage measuring method in multistage interval.
In a kind of typical embodiment of the application, as shown in figures 1 and 3, rock body quality of mine drilling multistage interval is anti-reflection
Formula gas drainage measuring method is drilled multisection type gas drainage system using rock body quality of mine in this method, which includes test
Probe, propulsive mechanism, supply operating mechanism and measuring means.
The test probe includes that conehead 3, first blocks the closure of unit 4, second unit 5, side leakage valve 25, communicating pipe 8, adopts
Collector 9.
The propulsive mechanism mainly includes drilling rod 10, drilling machine 12, and the drilling rod 10 is connect with test probe tail portion, as connecing
Long and propulsion double action, the drilling machine 12 promote test to pop one's head in and arrive 2 designated positions of drilling by drilling rod 10.
The supply operating mechanism includes supply station 13, mainly by hose 11, first switch 14, pressure gauge 15, stream
Scale 16, second switch 17 form.
The measuring means includes collecting station 18, mainly by third switch 19, gas pressure table 20, electronic pressure gage
21, unidirectional stop valve 23, collecting tank 22 form, as shown in Figure 2.
The supply station 13 blocks unit 4, second to first by hose 11, drilling rod 10 and blocks unit 5 and sealing
The flexible blockage medium 24 of setting pressure is provided in cavity 6.
Pressure of the pressure gauge 15 to observe flexible blockage medium 24 provided by supply station 13, the flow
The flow that table 16 passes through to read flexible blockage medium 24.
The collection station 18 is to collect No.1 acquisition 701, No. two acquisition cavitys 702 of cavity and No. three acquisition cavitys
Methane gas in 703.Gas pressure table 20 is to read gas pressure registration, the electronic pressure gage 21 and the gas pressure
Power table 20 mutually corrects, and guarantees the accuracy of gas pressure parameter.The unidirectional stop valve 23 guarantees that methane gas can only be unidirectional
It flows in the collecting tank 22.
3 quantity of conehead is 1, is in conical structure, with the first envelope as shown in figure 4, being located at the head of test probe
Stifled unit 4 is threaded, and play the guiding role.
Described first to block 4 quantity of unit be 4, as shown in figure 5, it is main include elastic closeouts as block capsule 27,
First tubular configured joint 39 and the 4th switch 38.First tubular configured joint, 39 both ends are in the tubulose knot of both ends protrusion intermediate recess
Structure, the closure capsule 27 wrap and are fixed on 39 center of the first tubular configured joint, and the 4th switch 38 is fixed on first
The outer end tube wall centre of tubular configured joint 39.
As shown in fig. 6, the 4th switch 38 is mainly made of nut cap 28, the first spring 29 and the first aperture 30.It is described
28 longitudinal cross-section of nut cap is in T-Type structure.Under normal conditions, nut cap 28 is in close state under the action of the first spring 29, by chance
Seal up the first aperture 30.When filling and blocking medium, the closure medium of certain pressure jacks up nut cap 28 upwards, with the first aperture
30 formation accesses block medium at this time and enter in the cavity of the first tubular configured joint 39 and closure capsule 27, and closure capsule 27 rises swollen.
The closure medium be flexible blockage medium 24, be in flow-like, block medium can be emulsion+sodium metasilicate+water or other
Medium.
9 quantity of collection tube is 3, and it is in spiral shell that left and right ends block unit 4 or the second closure unit 5 with first respectively
Line connection, is alternatively arranged, and forms No.1 acquisition 701, No. two acquisition cavitys 702 of cavity and No. three acquisition cavitys 703, wherein
When closure medium flows to No. two acquisition cavitys 702, increase the pressure for blocking medium, the second aperture 31 number is through on collection tube 9
It is a, two one-way sealing strip of paper used for sealings 32, two V-shaped structure settings of sealing strip, in order to methane gas are installed in the second aperture 31
Collection, as shown in Figure 7 and Figure 8, in No. two acquisition cavitys 702 the second tapping of collection tube be arranged one-way sealing strip of paper used for sealing, it is soft filling
Property block medium when, one-way sealing strip of paper used for sealing can prevent flexible blockage medium be directly entered acquisition cavity in, but pass through corresponding side
Leakage valve only enters in No. two acquisition cavitys, reaches the antireflective purpose in interval；Flexibility after playing swollen, in No. two acquisition cavitys
Realization discharge in collection tube can unidirectionally be entered by one-way sealing strip of paper used for sealing by blocking medium；In gas acquisition phase, it may make that gas is logical
One-way sealing strip of paper used for sealing 32 is crossed to enter in collection tube, two one-way sealing strip of paper used for sealings constitute vertebral body structure, and middle part can disconnect setting, such as Figure 13
It is shown, at the same in No.1 acquisition cavity 701 and No. three acquisition cavitys 703 on collection tube one-way sealing strip of paper used for sealing only allow methane gas into
Enter collection tube, flexible blockage medium 24 can be prevented to pass through the second aperture 31 playing swollen first closure unit 4, second closure unit 5
Into in drilling 2.
As shown in figure 9, communicating pipe is a round pipe road, external screw thread is arranged in both ends.
Second closure, 5 quantity of unit is 1, as shown in Figure 10, mainly by closure capsule 27, the second tubular configured joint 26
It is formed with the 4th switch 38.Second tubular configured joint, 26 left end is threaded with side leakage valve 25.
Described second, which blocks unit 5, is formed and is sealed by the first closure unit 4 and 2 inner walls of drilling of side leakage valve 25 and tail portion
Cavity 6.
As shown in figure 11, the side leakage valve 25 is mainly by a ball of second spring 35, two of basal body pipe 33, two
34, two third apertures 36 and two adjusting nuts 37 form.The second spring 35 is located in third aperture 36, described
Adjusting nut 37 is located at outside second spring 35, and the pretightning force of second spring 35 is adjusted by rotating adjusting nut 37, to adjust
Save the cracking pressure of ball 34.The flexible blockage medium 24 is entered in sealing cavity 6 by side leakage valve 25, not only salable
Drilling 2, and further sealing function is played to 2 surrounding rock body cracks of drilling.
Using above-mentioned rock body quality of mine drilling multisection type gas drainage system measuring method, concrete operation step:
1) it beats mash gas pumping drilling 2: successively being constructed in tunnel into top plate or bottom plate coal and rock 1 set angle with drilling machine 12
The coal seam in extraction region is specified in the drilling 2 of degree to reaching；
2) installation test probe: the sundries in cleaning drilling 2, installation multistage block extraction system, that is, are sequentially connected conehead
3, first unit 4, the closure of collection tube 9, second unit 5, communicating pipe 8 etc. are blocked, and the first closure that will test probe bottom is single
Member 4 is connected with drilling rod 10, is pushed the test installed probe to specified extraction region using drilling machine 12.
3) after probe header to be measured reaches specified region, supply station 13 and drilling rod closing drilling 2: are connected using hose 11
10, the flexible blockage medium 24 of setting pressure is provided into test probe.Firstly, opening the first switch of supply station 13
14, flexible blockage medium 24 enters first via corresponding 4th switch 38 and blocks 4 He of unit by communicating pipe 8 and collection tube 9
Second blocks in unit 5, plays swollen closure capsule 27, is respectively formed a sealing cavity 6 and No.1 acquires cavity 701, two and adopts
Collect 702, No. three acquisition cavitys 703 of cavity etc., continue growing 24 pressure of flexible blockage medium, side leakage valve 25 is opened, flexible blockage
Medium 24 enters in sealing cavity 6 via third aperture 36, is filled to sealing cavity 6, and further fills sealing cavity 6
Surrounding rock body crack, at this point, the first of test lower probe blocks the closure unit 5 of unit 4, second and the formation of sealing cavity 6 three
Weight borehole sealing, meanwhile, flexible blockage medium 24 enters No. two acquisition cavitys 702 by side leakage valve 25, to No. two acquisition cavitys
702 surrounding rock body cracks carry out pressurization extension, after 13 16 registration of flowmeter is stablized on station to be supplied, close first switch
14, second switch 17 is opened, first second via on corresponding collection tube 9 of flexible blockage medium 24 in No. two acquisition cavitys 702 is made
Aperture 31 enters collection tube 9, is discharged by communicating pipe 8, makes to keep clear inside pipeline.
4) it pressure test: after blocking drilling 2, does pressure test and tests to 2 effects of drilling are blocked, bored if blocking
Hole 2 is unqualified, then needs to block drilling 2 again；
5) Gas explosion burns are measured: after pressure test, carrying out Gas explosion burns measurement, is i.e. station 18 is collected in connection, is beaten
Third switch 19 is opened, methane gas is entered in collection tube 9 by the second aperture 31 of collection tube 9, and communicating pipe 8 etc., which enters, collects behaviour
Make platform 18, after gas pressure table 20 is stablized, read 20 registration of gas pressure table, and compared with the reading of electronic pressure gage 21,
In the case where the two numerical value is roughly the same, the average value of the two numerical value is taken, as shows the number of gas pressure in acquisition cavity 7
Value will finally collect the methane gas into collecting tank 22 and carry out analysis.
The part that do not address in the present invention uses or uses for reference prior art and can be realized.
The foregoing is merely preferred embodiment of the present application, are not intended to limit this application, for the skill of this field
For art personnel, various changes and changes are possible in this application.Within the spirit and principles of this application, made any to repair
Change, equivalent replacement, improvement etc., should be included within the scope of protection of this application.
Claims (10)
- The anti-reflection formula gas drainage measuring method in multistage interval 1. rock body quality of mine drills, which is characterized in that use a kind of rock body quality of mine The anti-reflection formula gas drainage in multistage interval that drills measures system, which includes:At least three first block unit, and two of them first block unit and are respectively arranged on both ends, and the first of head end blocks list Member is connect with conehead；At least two second block unit, are set to each adjacent two first and block between unit, and head end second blocks unit in Portion, head end first block and are connected by collection tube between unit, and collection tube side wall is equipped with several and has one-way seals Second aperture, and tail portion second blocks unit and tail portion first blocks and communicating pipe is arranged between unit；Side leakage valve, the side for blocking unit set on second, for the interior collection tube of medium feeding drilling will to be blocked or outside communicating pipe, side Leakage valve includes basal body pipe, blocks unit fastening inside basal body pipe side with described second, the basal body pipe other side can with collection tube or Communicating pipe connection, and the side ring is arranged check valve in third aperture, blocks medium and pass through pipe at least two third apertures are equipped with After road enters basal body pipe, entered in drilling by check valve, filling drilling；For collecting the measuring means of gas, unit is blocked with tail portion first and is detachably connected.
- The anti-reflection formula gas drainage measuring method in multistage interval 2. rock body quality of mine according to claim 1 drills, feature exist In described second, which blocks unit, includes the second tubular configured joint, and inside is equipped with elasticity closure for blocking the flowing of medium, excircle Part, the second tubular configured joint side wall are provided with through-hole, and the 4th switch of setting in the through hole blocks medium by pipeline and enters the second pipe After straight coupling, entered between the second tubular configured joint and elastic closeouts by the 4th switch, elastic closeouts, which swell, plays closure Effect.
- The anti-reflection formula gas drainage measuring method in multistage interval 3. rock body quality of mine according to claim 1 drills, feature exist In a kind of anti-reflection formula gas drainage measurement system in rock body quality of mine drilling multistage interval further includes supply operating mechanism, supply Operating mechanism and tail portion first block unit and are detachably connected to provide the closure of setting pressure into communicating pipe and collection tube and be situated between Matter blocks the pressure adjustable section of medium.
- The anti-reflection formula gas drainage measuring method in multistage interval 4. rock body quality of mine according to claim 1 drills, feature exist In the check valve includes the ball in third aperture, and second spring is arranged in ball side, and third apertured end is set Adjusting nut is set to contact with second spring；Further, the third aperture is communicated with the 4th aperture, block after medium enters in basal body pipe by third aperture into Enter the 4th aperture, hence into drilling.
- The anti-reflection formula gas drainage measuring method in multistage interval 5. rock body quality of mine according to claim 2 drills, feature exist In second tubular configured joint both ends internal diameter is greater than middle part internal diameter, and middle part size is less than the size at both ends, and both ends are respectively provided with platform Rank is used to that the elastic closeouts to be arranged.
- The anti-reflection formula gas drainage measuring method in multistage interval 6. rock body quality of mine according to claim 1 drills, feature exist In described first, which blocks unit, includes the first tubular configured joint, elastic closeouts is arranged outside the first tubular configured joint, in the first tubulose Connector side wall is equipped with the 4th switch, blocks medium by the 4th switch of the first tubular configured joint opening and enters the first tubular configured joint and bullet Space between property closeouts, elastic closeouts, which swell, plays plugging action.
- The anti-reflection formula gas drainage measuring method in multistage interval 7. rock body quality of mine according to claim 6 drills, feature exist In the tail portion first blocks unit and is detachably connected with propulsive mechanism；Further, the propulsive mechanism includes hollow drill and the drilling machine that connect with drilling rod.
- The anti-reflection formula gas drainage measuring method in multistage interval 8. rock body quality of mine according to claim 7 drills, feature exist In the 4th switch includes that longitudinal cross-section is in T-shaped nut cap, passes through first tubular configured joint in the middle part of nut cap and is arranged, and passes through Afterwards by being cased with the first spring in one's ear, support, support and the first tubular configured joint are also set up between nut cap and the first tubular configured joint Fixed and support side wall is provided with the first aperture.
- The anti-reflection formula gas drainage in the multistage interval measurement side 9. rock body quality of mine according to claim 1 to 8 drills Method, which is characterized in that specific step is as follows:1) it beats mash gas pumping drilling: beating mash gas pumping drilling into top plate or bottom plate coal and rock in tunnel；2) installation test probe: the installation test probe in tunnel, and test probe is sent to setting regions in drilling；3) closing drilling: unit is blocked by tail portion first and blocks unit, collection tube, the closure of middle part first to communicating pipe, second Unit, second, which block to be sent into unit and the closure unit of head end first, blocks medium, and first blocks unit and the second closure unit The segment section that the sealing that swells drills；The pressure for blocking medium is continued growing, medium is blocked and is entered in drilling by side leakage valve, formation compartment is anti-reflection, completes Afterwards, medium discharge will be blocked in drilling；4) Gas explosion burns are measured: after blocking medium flow field sky in pipe to be collected and communicating pipe, the closure unit of tail portion first being passed through into pipe Road is connect with collecting tank, after setting time, carries out analysis to methane gas in collecting tank.
- The anti-reflection formula gas drainage measuring method in multistage interval 10. rock body quality of mine according to claim 9 drills, feature exist In the setting side leakage valve at a certain section of collection tube passes through the envelope of side leakage valve injection setting pressure on the outside of collection tube into drilling Stifled medium, it is appropriate to the progress of rock body quality of mine crack anti-reflection, in order to the release of methane gas.
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| CN108643901B (en) * | 2018-04-20 | 2021-08-17 | 大连理工大学 | Multi-section graded pressure reduction water injection observation method based on fracture observation |
| CN108643899B (en) * | 2018-04-20 | 2021-08-17 | 大连理工大学 | Mining destructive zone segmented observation method for mine roof and floor |
| CN108643900B (en) * | 2018-04-20 | 2021-08-17 | 大连理工大学 | Mining destructive zone segmented observation system for mine roof and floor |
| CN108643891B (en) * | 2018-04-20 | 2021-08-17 | 大连理工大学 | Single-loop overburden fracture double-end plugging and leakage detection method |
| CN108798760B (en) * | 2018-06-12 | 2019-08-02 | 中国矿业大学 | A kind of method of single hole measurement multiple seam gas pressure |
| CN111677495B (en) * | 2020-05-08 | 2023-08-15 | 中煤科工集团西安研究院有限公司 | Coal mine underground directional drilling while-drilling gas measuring device, drilling tool and measuring method |
| CN111852392A (en) * | 2020-08-07 | 2020-10-30 | 中煤科工集团重庆研究院有限公司 | Gas extraction borehole leak detection and progressive secondary hole sealing device and using method |
| CN113216962B (en) * | 2021-06-28 | 2023-11-17 | 河南理工大学 | Synergistic anti-reflection desorption promotion experimental system and method for ultrasonic activated fracturing fluid |
| CN115450586B (en) * | 2022-07-26 | 2024-04-26 | 四川古叙科技咨询服务有限公司 | Gas layered extraction metering device |
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| CN105003255B (en) * | 2015-06-25 | 2017-09-01 | 山东科技大学 | Bottom plate Mining failure band multistage blocks synchronous leak detection method |
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Denomination of invention: Measurement method of multi-stage interval enhanced gas drainage in mine rock drilling Effective date of registration: 20211202 Granted publication date: 20190503 Pledgee: China Construction Bank Corporation Linyi Luozhuang sub branch Pledgor: LINYI MINING GROUP Co.,Ltd. Registration number: Y2021980013812 |
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Effective date of registration: 20230602 Address after: 274700 middle section of Dongxi Road, economic development zone, yuncheng county, Heze City, Shandong Province Patentee after: Shandong energy group Luxi Mining Co.,Ltd. Patentee after: SHANDONG DINGAN TESTING CO.,LTD. Address before: No. 69, Business Street Road, Linyi City, Shandong Province 276000 Patentee before: LINYI MINING GROUP Co.,Ltd. Patentee before: SHANDONG DINGAN TESTING CO.,LTD. |
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