CN104481577B - One kind bores the integrated coal seam physical chemistry of the row of cutting point and combines anti-reflection system and method - Google Patents

One kind bores the integrated coal seam physical chemistry of the row of cutting point and combines anti-reflection system and method Download PDF

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CN104481577B
CN104481577B CN201410677249.6A CN201410677249A CN104481577B CN 104481577 B CN104481577 B CN 104481577B CN 201410677249 A CN201410677249 A CN 201410677249A CN 104481577 B CN104481577 B CN 104481577B
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water
gas
pressure
nozzle
reflection
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CN104481577A (en
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林柏泉
刘厅
邹全乐
朱传杰
闫发志
姚浩
郭畅
洪溢都
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China University of Mining and Technology CUMT
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China University of Mining and Technology CUMT
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    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21FSAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F7/00Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/16Enhanced recovery methods for obtaining hydrocarbons
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21BEARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B43/00Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
    • E21B43/25Methods for stimulating production
    • E21B43/26Methods for stimulating production by forming crevices or fractures

Abstract

One kind bores the integrated coal seam physical chemistry of the row of cutting point and combines anti-reflection system and method, belongs to the anti-reflection system and method for weak seam release.System includes dusting power drug jet flow generating apparatus, bores three parts of the row's of cutting integrated apparatus and water-gas separator.Water under high pressure and chemical reagent are sent into jet mixer with dosing pump by high-pressure hydraulic pump and are sufficiently mixed by described dusting power drug jet flow generating apparatus, form dusting power drug jet;Described brill cut row's integrated apparatus can realize drill, deslagging integration in slot and hole, reduce the generation of plug-hole during slot;Described water-gas separator can realize being sufficiently separated to the water sprayed during slot, cinder and gas mixture, and the gas isolated enters extraction pipeline, and water tank is entered after water filtration, and realization is recycled.The system realizes that physics is anti-reflection by slot removal crustal stress and gas pressure;Under physics and the anti-reflection synergy of chemistry, gas permeability of coal seam and gas pumping effect are significantly improved.

Description

One kind bores the integrated coal seam physical chemistry of the row of cutting point and combines anti-reflection system and method
Technical field
It is particularly a kind of to bore the integrated coal of the row of cutting point the present invention relates to a kind of anti-reflection system and method for weak seam release Layer physical chemistry combines anti-reflection system and method.
Technical background
China's coal-bed gas preservation has micropore, low-permeability, the feature of high absorption, and coal seam permeability averagely only has 1.1974 ×10-18 ~1.1596 × 10-14m2.Low gas permeability of coal seam is to cause China's highly gassy mine coal bed gas extraction The universal poor one of the main reasons of effect.Waterpower measure by representative of high-pressure jet coal seam hydraulic slotted liner technique passes through in coal body Interior formation discharge space realization is anti-reflection to the physics in coal seam, achieves preferable application effect.But, with coal mining depth Increase, coal seam gas-bearing capacity increase, pure water jets can not meet the gas pumping requirement of high intensity because cutting power is limited. At chemical anti-reflection aspect, existing achievement in research shows, under finite concentration, and chlorine dioxide can carry out oxidation quarter to coal body Erosion, increase coal body porosity and pore communication, so as to improve coal body permeability.
Collapsed and the phenomenon such as gas exceeding limit in addition, spray orifice, coal body easily occur during slot, cause to embrace in drilling and bore and penetrate Flow device to block, cause slot operation to be forced termination, while deteriorating work site environment.
The content of the invention
Technical problem:The purpose of the present invention is to overcome the weak point in prior art to bore the row of cutting point one there is provided one kind Change coal seam physical chemistry and combine anti-reflection system and method, easily generation spray orifice, coal body collapses and gas exceeding limit during solving slot Etc. phenomenon, cause to embrace to bore in drilling to block with ejector, cause slot operation to be forced termination, while deteriorating work site environment The problem of.
Technical scheme:The object of the present invention is achieved like this:The brill of the present invention cuts the integrated coal seam physical chemistry of row point Combine anti-reflection system, mixed by high-pressure hydraulic pump, dosing pump, dosing pump pressure regulator valve, high-pressure hydraulic pump regulating valve, filter, dusting power drug jet Clutch, high-pressure rubber pipe, main body discharge outlet, voltage-controlled drill bit, hangers, rotational flow generator, drilling rod, see-through window, ash gate, rig, Preposition nozzle, side nozzle, orifice sealing device, ball valve, extraction pipeline, transfer purifying box, hemispherical collection chamber, absorption cone, filtering Cone, filter plate, liftable support, transfer purifying box discharge outlet, water-gas separator, check valve gear are constituted, transfer purifying box Discharge outlet and main body discharge outlet are connected by the input port of high-pressure rubber pipe and filter and high-pressure hydraulic pump, the delivery outlet of high-pressure hydraulic pump It is connected by high-pressure hydraulic pump regulating valve with dusting power drug jet mixer a port, the another port of dusting power drug jet mixer passes through string The output end connection of the check valve gear and dosing pump pressure regulator valve and dosing pump of connection;The output port and brill of dusting power drug jet mixer The water pigtail of machine is connected, and the drilling rod front end of rig passes through hangers, is connected with voltage-controlled drill bit in the right-hand member of drilling rod, has on voltage-controlled drill bit Preposition nozzle, side nozzle and orifice sealing device;Rotational flow generator is connected with the lower end of hangers, is connected in the lower end of rotational flow generator Water-gas separator is connected to, liftable support is connected with the bottom of water-gas separator, in water-gas separator Order has absorption cone, crosses filter cone and filter plate;See-through window and ash gate are connected with the wall of water-gas separator side, filter plate Discharge outlet is arranged at bottom, there is hemispherical collection chamber on the outer wall on water-gas separator top;Transfer purifying box by pipeline with Hemispherical collection chamber is connected, and is passed through in water-gas separator and is connected with absorbing to bore, and the bottom of transfer purifying box has transfer net Change case discharge outlet;Extraction pipeline is passed through in transfer purifying box by ball valve and pipeline.
Described dusting power drug jet mixer includes eddy flow guidance tape, the first mixing chamber, flow distribution plate, mist pipe, fixing axle, spiral shell Blade and the second mixing chamber;Mist pipe is connected to two ends of the first mixing chamber, is connected with the middle part of the first mixing chamber Second mixing chamber, has two ends of the flight in the first mixing chamber to have eddy flow guidance tape in the second mixing chamber, is oriented in eddy flow Band is connected on axle, also has flow distribution plate in the first mixing chamber, and flow distribution plate is adjacent with eddy flow guidance tape.
Described preposition nozzle includes nozzle body, slagging channel, spring, resin beads and cooling passage;Slagging channel Passage is V-shaped to be diverged to cooling, and positioned at one end of nozzle body, being linked in sequence in slagging channel with cooling passage has bullet Spring and resin beads.
Described liftable support includes:Bolt, circular hole and base;There is inner tube in base, there is logical circular hole on inner pipe, There is bolt on base;The height that liftable supports inner tube is changed by regulating bolt.
Described orifice sealing device includes:Toughness steel ring, cushion rubber, slide plate and adjusting nut, on the outer wall of toughness steel ring Cushion rubber is connected with, slide plate and adjusting nut are connected with the other end of toughness steel ring, can by adjusting adjusting nut moving slide board Change the size of toughness steel ring, cushion rubber is in close contact with the wall of a borehole, prevent gas leakage.
Described absorption pitch cone radius filtering cone 1~3cm of end;Described absorption cone angle is 90~120 °;Described filtering Cone is in inverted V-shaped, and angle is 25 ~ 30 °;
The circular hole that 150~200 apertures are 1~2mm is uniform-distribution with described flow distribution plate.
The V-arrangement binary channels angle of described preposition nozzle is 120~150 °.
Resin beads in described slagging channel are in close contact with conduit wall, resin beads and passage in cooling passage Wall is not contacted.
The brill of the present invention cuts the integrated coal seam physical chemistry joint anti-reflection method of row point, comprises the following steps:
A, startup rig drive voltage-controlled drill bit to sequentially pass through water-gas separator and orifice sealing device, pass through adjusting nut Moving slide board makes the cushion rubber on toughness steel ring be in close contact with the wall of a borehole, prevents gas leakage;
B, startup high-pressure hydraulic pump, regulation high-pressure hydraulic pump pressure regulator valve make pressure gauge reading be 3~5Mpa;Rig promotes voltage-controlled bore Head is crept into setting position;In drilling process, water flows out from the cooling passage of preposition nozzle, prevents side nozzle from blocking, and drops simultaneously The temperature of low pressure control drill bit;
C, regulation high-pressure hydraulic pump pressure regulator valve make pressure gauge reading be 15~20MPa, while starting dosing pump regulation dosing pump Pressure regulator valve causes flow meter reading to be 1~1.5L/min, and chemical reagent is sufficiently mixed with water under high pressure in dusting power drug jet mixer The dusting power drug jet for obtaining concentration 6 ‰ afterwards enters voltage-controlled drill bit through drilling rod, and realizes slot by side nozzle impact coal-mass, mixes simultaneously Medicine jet impacts cinder by the slagging channel of preposition nozzle, prevents plug-hole;During slot, cinder enters through rotational flow generator Water-gas separator, after part gas is gathered by hemispherical collection chamber and filtered through transfer purifying box, into gas pumping Pipeline, remaining water-gas mixture is filtered by filter cone, and gas enters extraction pipeline by absorbing coning, and cinder by arranging automatically Slag door discharge, water enters anti-high pressure rubber pipe and by entering high-pressure hydraulic pump after filter process by main body discharge outlet;
D, the voltage-controlled 25~35min of drill bit of rotation, the pressure gauge registration of regulation pressure regulator valve is 3~5MPa, meanwhile, close dosing Pump;
E, voltage-controlled drill bit retreat 1~1.5m, repeat step b along aperture direction, complete the slot of voltage-controlled drill bit the next position, Go round and begin again, complete the slot of multiple positions.
The chemical reagent used in method is made up of host and auxiliary agent, and wherein host is chlorine dioxide, and auxiliary agent includes MCRS- 2 type surfactants and corrosion inhibiter phosphonate, the proportioning of chlorine dioxide, MCRS-2 types surfactant and corrosion inhibiter phosphonate is 4:1:1。
Beneficial effect:The present invention is by by chemical reagent and water under high pressure mixing impact coal-mass formation discharge space, promoting coal Layer release, cranny development realizes that physics is anti-reflection.The crack for formation that coal seam physics is anti-reflection promotes chemical reagent to be permeated to coal body, changes Learn reagent oxidation and corrode coal body, increase coal body porosity and pore communication, realize that coal seam chemistry is anti-reflection.Under crustal stress effect The porous dehiscence gap for formation that chemistry is anti-reflection, which is caved in, further promotes coal body physics anti-reflection, so as to form, physics is anti-reflection to be increased with chemical The coal seam physical chemistry joint mutually promoted thoroughly is anti-reflection, and gas permeability of coal seam can improve 300 ~ 500 times.Rushed using preposition injection stream Hit the generation that cinder is effectively reduced plug-hole during slot.In addition, water-gas separator can be mixed to the water-gas of ejection Thing is separated, and realizes recycling for water, improves work site environment.The device integration degree is high, practical, in height There is wide applicability in the gas pumping of gas low-permeable weak seam.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the mixer structure schematic diagram of the present invention.
Fig. 3 is the preposition nozzle arrangements figure of the present invention.
Fig. 4 is the liftable support schematic diagram of the present invention.
Fig. 5 is the orifice sealing device schematic diagram of the present invention.
In figure:1- high-pressure hydraulic pumps, 2- dosing pumps, 3- dosing pump pressure regulator valves, 4- high-pressure hydraulic pump regulating valves, 5- filters, 6- Dusting power drug jet mixer, 6-1- eddy flow guidance tapes, the mixing chambers of 6-2- first, 6-3- flow distribution plates, 6-4- mist pipes, 6-5- is fixed Axle, 6-6- flights, the mixing chambers of 6-7- second, 7- anti-high pressure rubber pipes, 8- main body discharge outlet, the voltage-controlled drill bits of 9-, 10- hangers, 11- Rotational flow generator, 12- drilling rods, 13- see-through windows, 14- ash gates, 15- rigs, 16- coal seams, the preposition nozzles of 17-, 17-1- sprays Mouth body, 17-2- slagging channels, 17-3- springs, 17-4- resin beads, 17-5- cooling passages, 18- side nozzles, 19- apertures are close Seal device, 19-1- toughness steel rings, 19-2- cushion rubbers, 19-3- slide plates, 19-4- adjusting nuts, 20- ball valves, 21- extraction pipelines, 22- Transfer purifying box, 23- hemispherical collection chambers, 24- absorbs cone, and 25- crosses filter cone, 26- filter plates, the support of 27- liftables, 27-1- spiral shells Bolt, 27-2- circular holes, 27-3- bases, 28- transfer purifying box discharge outlet, 29- water-gas separators, 30- non-return valves.
Embodiment
One embodiment of the present of invention is further described below in conjunction with the accompanying drawings:
As shown in figure 1, the brill of the present invention, which cuts the integrated coal seam physical chemistry of row point, combines an anti-reflection system, by high-pressure hydraulic pump 1, Dosing pump 2, dosing pump pressure regulator valve 3, high-pressure hydraulic pump regulating valve 4, filter 5, dusting power drug jet mixer 6, high-pressure rubber pipe 7, main body Discharge outlet 8, voltage-controlled drill bit 9, hangers 10, rotational flow generator 11, drilling rod 12, see-through window 13, ash gate 14, rig 15, coal seam 16th, preposition nozzle 17, side nozzle 18, orifice sealing device 19, ball valve 20, extraction pipeline 21, transfer purifying box 22, hemispherical gas collection Room 23, absorption bore 24, cross filter cone 25, filter plate 26, liftable support 27, transfer purifying box discharge outlet 28, water-gas separator 29th, check valve gear 30 is constituted, and transfer purifying box discharge outlet 28 and main body discharge outlet 8 pass through high-pressure rubber pipe 7 and filter 5 and height The input port connection of water pump 1, the delivery outlet of high-pressure hydraulic pump 1 passes through high-pressure hydraulic pump regulating valve 4 and dusting power drug jet mixer 6 one Port is connected, the check valve gear 30 and dosing pump pressure regulator valve 3 and dosing of the another port of dusting power drug jet mixer 6 by series connection The output end connection of pump 2;The output port of dusting power drug jet mixer 6 is connected with the water pigtail of rig 15, before the drilling rod 12 of rig 15 End is connected with voltage-controlled drill bit 9 in the right-hand member of drilling rod 12, there is preposition nozzle 17, side nozzle 18 on voltage-controlled drill bit 9 through hangers 10 With orifice sealing device 19;Rotational flow generator 11 is connected with the lower end of hangers 10, water is connected with the lower end of rotational flow generator 11 Coal gas separator 29, liftable support 27 is connected with the bottom of water-gas separator 29, in water-gas separator 29 Interior order has absorption cone 24, crosses filter cone 25 and filter plate 26;The He of see-through window 13 is connected with the side wall of water-gas separator 29 Discharge outlet 8 is arranged at ash gate 14, the bottom of filter plate 26, there is hemispherical collection chamber on the outer wall on the top of water-gas separator 29 23;Transfer purifying box 22 is connected by pipeline with hemispherical collection chamber 23, and is passed through in water-gas separator 29 with absorbing cone 24 connections, transfer purifying box discharge outlet 28 is arranged at the bottom of transfer purifying box 22;Extraction pipeline 21 is passed through by ball valve 20 and pipeline In transfer purifying box 22.
Described dusting power drug jet mixer 6 includes eddy flow guidance tape 6-1, the first mixing chamber 6-2, flow distribution plate 6-3, mist pipe 6-4, fixing axle 6-5, flight 6-6 and the second mixing chamber 6-7;Mist pipe 6-4 is connected to the first mixing chamber 6-2 two ends, The second mixing chamber 6-7 is connected with the first mixing chamber 6-2 middle part, has flight 6-6 in the second mixing chamber 6-7 There is eddy flow guidance tape 6-1 at two ends in one mixing chamber 6-2, are connected in eddy flow guidance tape 6-1 on axle 6-5, in the first mixing Interior also has flow distribution plate 6-3 flow distribution plates 6-3 adjacent with eddy flow guidance tape 6-1.
Described preposition nozzle 17 include nozzle body 17-1, slagging channel 17-2, spring 17-3, resin beads 17-4 and Cool passage 17-5;Passage 17-5 is V-shaped diverges to cooling by slagging channel 17-2, and positioned at nozzle body 17-1 one end, Being linked in sequence in slagging channel 17-2 and cooling passage 17-5 has spring 17-3 and resin beads 17-4.
Described liftable support 27 includes:Bolt 27-1, circular hole 27-2 and base 27-3;There is inner tube in base 27-3, There is logical circular hole 27-2 on inner pipe, there is bolt 27-1 on base 27-3;Liftable support 27 is changed by regulating bolt 27-1 The height of inner tube.
Described orifice sealing device 19 includes:Toughness steel ring 19-1, cushion rubber 19-2, slide plate 19-3 and adjusting nut 19-4, Cushion rubber 19-2 is connected with toughness steel ring 19-1 outer wall, slide plate 19-3 and tune are connected with the toughness steel ring 19-1 other end Nut 19-4 is saved, can change toughness steel ring 19-1 size by adjusting adjusting nut 19-4 moving slide boards 19-3, make cushion rubber 19- 2 are in close contact with the wall of a borehole, prevent gas leakage.
Described absorption cone 24 is away from the 1~3cm of tip of filter cone 25 excessively;
It is 90~120 ° that 24 angles are bored in described absorption;Described filter cone 25 of crossing is in inverted V-shaped, and angle is 25 ~ 30 °;
Described rotational flow generator 11 is fixed on the wall of water-gas separator 29.
As shown in Fig. 2 described dusting power drug jet mixer 6 includes eddy flow guidance tape 6-1, the first mixing chamber 6-2, flow distribution plate 6-3, mist pipe 6-4, fixing axle 6-5, flight 6-6 and the second mixing chamber 6-7;
Described eddy flow guidance tape 6-1 is fixed on fixing axle 6-5 and not rotated with air-flow;On described flow distribution plate 6-3 Be uniform-distribution with the circular hole that 150~200 apertures are 1~2mm, chemical reagent and water under high pressure shunted by flow distribution plate 6-3 after First mixing chamber 6-2 enters the second mixing chamber 6-7 after being sufficiently mixed, and is mixed again in eddy flow guidance tape 6-1.
As shown in figure 3, described preposition nozzle 17 is small including nozzle body 17-1, slagging channel 17-2, spring 17-3, resin Ball 17-4 and cooling passage 17-5, slagging channel 17-2 are with cooling that passage 17-5 is V-shaped diverges to, and angle is 120~150 °; Resin beads 17-4 in described slagging channel 17-2 is in close contact with conduit wall, the resin beads in cooling passage 17-5 17-4 is not contacted with conduit wall, and low pressure water is cooled by the passage 17-5 outflows that cool during slot under water under high pressure effect when drilling Passage 17-5 is closed, and slagging channel 17-2 is opened, and water under high pressure flows out from slagging channel 17-2.
As shown in figure 4, described liftable support 27 includes bolt 27-1, circular hole 27-2, base 27-3, by adjusting spiral shell Bolt 27-1 can change the height of liftable support 27.
As shown in figure 5, described orifice sealing device 19 includes toughness steel ring 19-1, cushion rubber 19-2, slide plate 19-3, spiral shell is adjusted Female 19-4, toughness steel ring 19-1 size can be changed by adjusting adjusting nut 19-4 moving slide boards 19-3, make cushion rubber 19-2 with The wall of a borehole is in close contact, and prevents gas leakage.
The brill of the present invention cuts the integrated coal seam physical chemistry joint anti-reflection method of row point:
A, startup rig 15 drive voltage-controlled drill bit 9 to sequentially pass through water-gas separator 29 and orifice sealing device 19, pass through Adjusting nut 19-4 moving slide boards 19-3 makes the cushion rubber 19-2 on toughness steel ring 19-1 be in close contact with the wall of a borehole, prevents gas leakage.
B, startup high-pressure hydraulic pump 1, regulation high-pressure hydraulic pump pressure regulator valve 4 make pressure gauge reading be 3 ~ 5MPa.Rig 15 promotes pressure Control drill bit 9 is crept into setting position.In drilling process, water flows out from the cooling passage 17-5 of preposition nozzle 17, prevents side nozzle 18 block, while reducing the temperature of voltage-controlled drill bit 9;
C, regulation high-pressure hydraulic pump pressure regulator valve 4 make pressure gauge reading be 15~20MPa, while starting the regulation dosing of dosing pump 2 Pump pressure regulator valve 3 causes flow meter reading to be 1~1.5L/min, and chemical reagent and water under high pressure are abundant in dusting power drug jet mixer 6 The dusting power drug jet that concentration 6 ‰ is obtained after mixing enters voltage-controlled drill bit 9 through drilling rod 12, and is cut by the realization of the impact coal-mass of side nozzle 18 Seam, while dusting power drug jet impacts cinder by the slagging channel 17-2 of preposition nozzle 17, prevents plug-hole;During slot, cinder Enter water-gas separator 29 through rotational flow generator 11, part gas is gathered by hemispherical collection chamber 23 and purified through transfer After case filtering, into methane gas extraction pipeline 21, remaining water-gas mixture is filtered by filter cone 25, and gas is by absorbing cone 24 Into extraction pipeline 21, cinder is discharged by automatic discharge door 14, and water enters anti-high pressure rubber pipe 7 by main body discharge outlet 28 and led to Cross after filter 5 is handled and enter high-pressure hydraulic pump 1;
D, the voltage-controlled 9 25~35min of drill bit of rotation, the pressure gauge registration of regulation pressure regulator valve is 3~5MPa, meanwhile, close and add Teat pipette(2);
E, voltage-controlled drill bit 9 retreat 1~1.5m, repeat step b along aperture direction, complete cutting for voltage-controlled the next position of drill bit 9 Seam, goes round and begins again, and completes the slot of multiple positions.

Claims (3)

1. one kind, which bores the integrated coal seam physical chemistry of the row of cutting point, combines anti-reflection system, it is characterized in that:The joint is anti-reflection, and system includes: High-pressure hydraulic pump, dosing pump, dosing pump pressure regulator valve, high-pressure hydraulic pump regulating valve, filter, dusting power drug jet mixer, high-pressure rubber pipe, master Body discharge outlet, voltage-controlled drill bit, hangers, rotational flow generator, drilling rod, see-through window, ash gate, rig, coal seam, preposition nozzle, side Nozzle, orifice sealing device, ball valve, extraction pipeline, transfer purifying box, hemispherical collection chamber, absorption are bored, cross filter cone, filter plate, can rise Descending branch support, transfer purifying box discharge outlet, water-gas separator and check valve gear;Transfer purifying box discharge outlet and main body draining Mouth is connected by the input port of high-pressure rubber pipe and filter and high-pressure hydraulic pump, and the delivery outlet of high-pressure hydraulic pump is adjusted by high-pressure hydraulic pump Valve is connected with dusting power drug jet mixer a port, the another port of dusting power drug jet mixer by the check valve gear of series connection and The output end connection of dosing pump pressure regulator valve and dosing pump;The output port of dusting power drug jet mixer is connected with the water pigtail of rig, bores The drilling rod front end of machine passes through hangers, is connected with voltage-controlled drill bit in the right-hand member of drilling rod, there is preposition nozzle, side nozzle on voltage-controlled drill bit With orifice sealing device;Rotational flow generator is connected with the lower end of hangers, water-gas separation is connected with the lower end of rotational flow generator Device, liftable support is connected with the bottom of water-gas separator, sequentially there is absorption cone, mistake in water-gas separator Filter cone and filter plate;See-through window and ash gate are connected with the wall of water-gas separator side, discharge outlet is arranged at the bottom of filter plate, There is hemispherical collection chamber on the outer wall on water-gas separator top;Transfer purifying box is connected by pipeline and hemispherical collection chamber Connect, and be passed through interior bored with absorption of water-gas separator and be connected, transfer purifying box discharge outlet is arranged at the bottom of transfer purifying box;Extraction Pipeline is passed through in transfer purifying box by ball valve and pipeline;
Described liftable support includes:Bolt, circular hole and base;There is inner tube in base, have logical circular hole on inner pipe, in base On have bolt;The height that liftable supports inner tube is changed by regulating bolt;
Described orifice sealing device includes:Toughness steel ring, cushion rubber, slide plate and adjusting nut, are connected on the outer wall of toughness steel ring There is cushion rubber, slide plate and adjusting nut are connected with the other end of toughness steel ring, can be changed by adjusting adjusting nut moving slide board The size of toughness steel ring, makes cushion rubber be in close contact with the wall of a borehole, prevents gas leakage;
Described absorption pitch cone radius filtering cone 1~3cm of end;Described absorption cone angle is 90~120 °;Described filter cone of crossing is in Inverted V-shaped, angle is 25 ~ 30 °;
Described dusting power drug jet mixer includes eddy flow guidance tape, the first mixing chamber, flow distribution plate, mist pipe, fixing axle, flight And second mixing chamber;Mist pipe is connected to two ends of the first mixing chamber, and second is connected with the middle part of the first mixing chamber Mixing chamber, has flight in the second mixing chamber, and there are eddy flow guidance tape, the connection of eddy flow guidance tape in the two ends in the first mixing chamber In fixing axle, there is flow distribution plate in the first mixing chamber, flow distribution plate is adjacent with eddy flow guidance tape;
The circular hole that 150~200 apertures are 1~2mm is uniform-distribution with described flow distribution plate.
2. a kind of integrated coal seam physical chemistry of the row of cutting point that bores according to claim 1 combines anti-reflection system, it is characterized in that: Described preposition nozzle includes:Nozzle body, slagging channel, spring, resin beads and cooling passage;Slagging channel is logical with cooling Road is V-shaped to be diverged to, and positioned at one end of nozzle body, being linked in sequence in slagging channel with cooling passage has spring and resin Bead;The V-arrangement binary channels angle of described preposition nozzle is 120~150 °;
Resin beads in described slagging channel are in close contact with conduit wall, and the resin beads and conduit wall in cooling passage are not Contact.
3. bore the method that the integrated coal seam physical chemistry of the row of cutting point combines anti-reflection system described in claim 1, it is characterised in that Comprise the following steps:
A, startup rig drive voltage-controlled drill bit to sequentially pass through water-gas separator and orifice sealing device, are moved by adjusting nut Slide plate makes the cushion rubber on toughness steel ring be in close contact with the wall of a borehole, prevents gas leakage;
B, startup high-pressure hydraulic pump, regulation high-pressure hydraulic pump pressure regulator valve make pressure gauge reading be 3~5Mpa;Rig promotes voltage-controlled drill bit to bore Proceed to setting position;In drilling process, water flows out from the cooling passage of preposition nozzle, prevents side nozzle from blocking, while reducing pressure Control the temperature of drill bit;
C, regulation high-pressure hydraulic pump pressure regulator valve make pressure gauge reading be 15~20MPa, while starting dosing pump regulation dosing pump pressure regulation Valve causes flow meter reading to be 1~1.5L/min, and chemical reagent is obtained after being sufficiently mixed with water under high pressure in dusting power drug jet mixer Dusting power drug jet to concentration 6 ‰ through drilling rod enters voltage-controlled drill bit, and slot is realized by side nozzle impact coal-mass, while dusting power drug is penetrated Stream impacts cinder by the slagging channel of preposition nozzle, prevents plug-hole;During slot, cinder enters water coal through rotational flow generator Air separation, after part gas is gathered by hemispherical collection chamber and filtered through transfer purifying box, into methane gas extraction pipeline, Remaining water-gas mixture is filtered by filter cone, and gas enters extraction pipeline by absorbing coning, and cinder passes through automatic discharge door Discharge, water enters anti-high pressure rubber pipe and by entering high-pressure hydraulic pump after filter process by main body discharge outlet;
D, the voltage-controlled 25~35min of drill bit of rotation, the pressure gauge registration of regulation pressure regulator valve is 3~5MPa, meanwhile, close dosing pump (2);
E, voltage-controlled drill bit retreat 1~1.5m, repeat step b along aperture direction, complete the slot of voltage-controlled drill bit the next position, week and Renew, complete the slot of multiple positions;
Described chemical reagent is made up of host and auxiliary agent, and wherein host is chlorine dioxide, and auxiliary agent is lived including MCRS-2 types surface Property agent and corrosion inhibiter phosphonate, the proportioning of chlorine dioxide, MCRS-2 types surfactant and corrosion inhibiter phosphonate is 4:1:1.
CN201410677249.6A 2014-11-21 2014-11-21 One kind bores the integrated coal seam physical chemistry of the row of cutting point and combines anti-reflection system and method Active CN104481577B (en)

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