A kind of brill punching press integrated apparatus
Technical field
The utility model belongs to the anti-reflection technical field of coal mine gas enhanced gas extraction, is related to a kind of brill punching press integrated apparatus.
Background technique
According to statistics, the coal seam of high methane and the projecting mine exploitation in 95% or more the whole nation belongs to low air permeability coal seam, permeability
Mostly 10-6~10-7μm2The order of magnitude, coverage is small, the rate of decay is fast, extraction difficulty is big for gas drainage (especially pre- to take out).By
It is difficult to significantly promote coal seam permeability in existing gas drainage technology, often results in mine gas extraction inefficiency,
" bore, take out, adopting, digging " proportional imbalance.For this purpose, low-permeable height is dashed forward, mine has to put into a large amount of human and material resources, financial resources are used for
Gas drainage, but the breakthrough due to lacking extraction technology or Mine development are had difficulty in walking, or because extraction improvement is not thorough
Bottom leads to that gas exceeding limit is frequent, security risk is serious, gas accident takes place frequently, and seriously threatens Safety of Coal Mine Production.Currently, China's coal
A kind of anti-reflection technology of universality is badly in need of in mine gas drainage field, meets anti-reflection under all kinds of coal seam conditions.
Hydraulic jetting fracturing is using high-pressure fluid as medium, and when fluid passes through spraycan, static energy is converted into kinetic energy, produces
Raw high-speed jet impact rock forms perforation tunnel, completes hydraulic perforating, the lasting percussion of high-speed jet is in cell end portion
Generate microcrack, the kinetic energy of high-speed jet at this time is converted into static energy and forms pressurization, when annular pressure and jet flow pressurizing value it
When with being more than formation fracture pressure, crack is generated in cell end portion, having and accurately manufacturing crack, without mechanical envelope in designated position
Every, save the activity duration, reduce operating risk the advantages that;Hydraulic jetting fracturing ability only in elastomer (hard coal or country rock)
Crack is formed, realization is anti-reflection, and plastic body this for cherry coal is simultaneously not suitable for;And hydraulic flushing in hole is rushed by the jet stream of high-pressure water jet
Power cutting, broken coal body are hit, cinder is gone out, makes the surrounding medium formation cavity that drills, drilling surrounding medium occurs to boring direction
It significantly moves, causes the opposite displacement between the dilatancy of coal body and top, bottom plate, make crustal stress drop in drilling coverage
Low, release is thorough, discharges the gas in coal seam sufficiently, it is anti-reflection to be highly suitable for cherry coal.Waterpower pressure punching then sprays waterpower
It penetrates fracturing technique and hydraulic flushing technology effectively combines, taking full advantage of hydraulic jetting fracturing technology can open, extends, extend coal
Layer crack, hydraulic flushing in hole can produce coal release the advantages of, the two respectively takes the chief, bring out the best in each other, for effectively administering Gas Disaster,
Prevention and treatment gas safety accident has remarkable effect.
Waterpower pressure rush anti-reflection mash gas extraction be related to drilling, hydraulic jetting fracturing, hydraulic flushing in hole, numerous steps such as networking extraction
Suddenly, it needs to move back brill after Completion of Drilling Hole, and removes drilling machine, then reuse plain tubing or coiled tubing for injector and be sent to pressure
It splits, punching position, activity duration length, large labor intensity.Therefore, find a kind of simple, the energy saving, strong applicability of manipulation,
Easy maintenance, it is safe and efficient drill, hydraulic jetting fracturing, the integrated device of hydraulic flushing in hole become the task of top priority.
Utility model content
The utility model provides a kind of brill punching press integrated apparatus, grasps to solve shortcoming in the prior art
Troublesome operation when carrying out pressure break or punching after simply avoiding previous Completion of Drilling Hole is controlled, labor intensity can be reduced, saves and makees
The industry time simultaneously improves working efficiency.
The utility model is adopted the technical scheme that solve the above-mentioned problems, provides a kind of brill punching press integrally makeup
It sets, is preceding to including from rear to preceding binary channels water pigtail, the binary channels drilling rod, bilateral for passing sequentially through threaded connection with drilling direction
Road hydraulic ejector and drill;
Binary channels water pigtail includes pedestal and water pigtail drill rod connector, and the inside of pedestal offers the first installation that front and back penetrates through
The rear end in hole, water pigtail drill rod connector is rotatably connected in the first mounting hole by bearing, and the front end of water pigtail drill rod connector is set
There is the first outer cone thread connector, axially inside offering for water pigtail drill rod connector is logical outside the open rear side closed first in front side
The inside in road, the first outer tunnel is provided with the first inner passway tube along coaxial, and the rear end of the first inner passway tube is fixedly mounted on water
The rear portion of pigtail drill rod connector;
The cavity for being axially inside equipped with front and back perforation of binary channels drilling rod, cavity is interior to be led to along coaxial be provided in second
Deferent, the annular space between the second inner passway tube and cavity are denoted as the second outer tunnel, and the rear end of binary channels drilling rod is provided with
One inside tapered thread connector, the first inside tapered thread connector are connect with the first outer cone thread joint screw thread, and the front end of binary channels drilling rod is set
It is equipped with the second outer cone thread connector, be fixedly mounted on inside binary channels drilling rod is provided on front side of the first inside tapered thread connector
One support ring, the rear portion of the second inner passway tube are threaded through the inner ring of the first support ring, and is circumferentially offered in the first support ring
One outer tunnel entrance;
Binary channels hydraulic ejector includes from rear to preceding the second inside tapered thread connector being successively threadedly coupled, injector sheet
Body, third outer cone thread connector, the second inside tapered thread connector are connect with the second outer cone thread joint screw thread, and the second inside tapered thread connects
The front side of head is provided with the second support ring, and the inner ring of the second support ring is equipped with third inner passway tube, along week in the second support ring
To offering the second outer tunnel entrance, the spool of ejector body being internally provided with for switching drilling state Yu punching press state
Combination and the nozzle for carrying out hydraulic jetting fracturing;
Ejector body be equipped with axial parallel nine branched bottoms of ejector body, each branched bottom is along injection
The distribution of device ontology even circumferential, the entrance of each branched bottom are connected to the second outer tunnel entrance respectively, each branched bottom
Respectively with the front side outlet of the second mounting hole, all branched bottoms are denoted as third outer tunnel for outlet;
The 4th outer tunnel is provided in third outer cone thread connector, the 4th outer tunnel is bored with third outer tunnel and drilling respectively
Head connection;
The rear portion of drill is equipped with third inside tapered thread connector, third inside tapered thread connector and third outer cone thread connector
It is threadedly coupled;
First outer tunnel, the first outer tunnel entrance, the second outer tunnel, the second outer tunnel entrance and third outer tunnel successively connect
Lead to and forms the outer tunnel for boring punching press integrated apparatus;
First inner passway tube, the second inner passway tube and third inner passway tube, which are sequentially communicated and form, bores punching press integrated apparatus
Internal channel.
Drilling medium connector and control medium connector are installed on the pedestal of binary channels water pigtail, creep into the outlet of medium connector
End is connected to the first outer tunnel, and the outlet end of control medium connector is connected to the first inner passway tube;
The input end for creeping into medium connector has been respectively communicated with drilling medium delivery pipe road by threeway and pressure break medium conveys
Pipeline, the input end of control medium connector are communicated with control medium delivery pipe road, drilling medium delivery pipe road, the conveying of pressure break medium
Valve is provided on pipeline and control medium delivery pipe road.
The second mounting hole for axially inside offering front and back and penetrating through of ejector body, spool combination settings are in the second peace
It fills in hole, spool combination includes valve cage, pressure adjusting set, valve rod, spring and the sliding lock of coaxial setting, valve cage peace
In the second mounting hole, the rear portion of valve cage is protruded backward is equipped with inner tube support portion, opens up on inner tube support portion along axial direction
There is the interior pipe through-hole of perforation, the front end of third inner passway tube is mounted in interior pipe through-hole, and valve cage is internally provided with first
Limited step is provided with the second limited step on the second mounting hole, and the second mounting hole is divided into construction section by the second limited step
And control section, pressure adjusting set are set in valve cage, the front end face of pressure adjusting set is contacted with the second limited step, valve rod
Rear end be fixedly connected with top cover, valve rod is located in valve cage and the rear end face of top cover is contacted with the first limited step, valve rod
On be arranged with compressed spring, the rear end of compressed spring is contacted with the press of the front end face of top cover, the front end of compressed spring and pressure tune
Section set is fixedly connected, and the front end of valve rod passes through pressure adjusting set from back to front, and the front end of valve rod is provided with external screw thread and and sliding lock
It is spirally connected, sliding lock is slidably connected in the control section of the second mounting hole.
There are three nozzle for carrying out hydraulic jetting fracturing is set, the entrance of each nozzle respectively with third outer tunnel go out
Mouth connection, the axis of each nozzle are mutually perpendicular to the axis of ejector body, axis of each nozzle ring around ejector body
Angle α between line setting and every two nozzle is 120 °.
Be provided with annular switching slot between the outlet and the control section of the second mounting hole of third outer tunnel, annular switching slot with
The control section of the outlet of third outer tunnel, the entrance of each nozzle and the second mounting hole is respectively communicated with.
It is provided with relief hole in ejector body, the both ends of relief hole respectively with the construction section of the second mounting hole and wherein one
A branched bottom is connected.
By adopting the above technical scheme, the utility model has the advantage that
The spool combination being arranged inside ejector body in the utility model can be used for switching drilling state and punching press state,
The nozzle being arranged inside ejector body can be used for carrying out hydraulic jetting fracturing, the outlet of third inner passway tube and the second mounting hole
Construction section connection, the high pressure water flowed out from third inner passway tube acts on top cover, with the sliding lock in movable valve plug combination to advancing slip
Dynamic, to cut off the connection of third outer tunnel and the 4th outer tunnel, drilling medium (water or wind) stops conveying to drill, stream
The change its course nozzle that converges in ejector body of high pressure fracture liquid through third outer tunnel sprays, and carries out hydraulic jetting fracturing work
Industry.
The annular switching slot being arranged between the outlet and the control section of the second mounting hole of third outer tunnel in the utility model
It can be connected to the control section of the outlet of third outer tunnel, the entrance of each nozzle and the second mounting hole, simultaneously for drilling state and punching
The switching of pressure condition provides structural support.
The relief hole being arranged in ejector body in the utility model reduces control medium to the pressure of sliding lock and by pressing
Contracting spring drives sliding lock to reset, to limit the stroke of sliding lock to guarantee the flexible switching of drilling state Yu punching press state.
To sum up, the brill punching press integrated apparatus of the utility model, which has, manipulates simple, energy saving, strong applicability, maintenance
The advantages that easy and safe and efficient is drilling medium in drilling process Zhong Shui and wind, and high pressure fracture liquid can during moving back brill
With by binary channels hydraulic ejector generate water jet implement high-pressure water jet punching or hydraulic jetting fracturing point by point, avoid with
It needs to move back brill after toward Completion of Drilling Hole, removes drilling machine, injector is sent to pressure break or punching position using plain tubing or coiled tubing
It the troublesome operations such as sets, considerably reduces labor intensity, save the activity duration, improve work efficiency.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model;
Fig. 2 is the structural schematic diagram of binary channels hydraulic ejector in the utility model;
Fig. 3 is the scheme of installation that spool combines in the utility model;
Fig. 4 is the structural schematic diagram of ejector body in the utility model;
Fig. 5 is the structural schematic diagram of valve cage in the combination of the utility model spool;
Fig. 6 is the A-A diagrammatic cross-section in Fig. 2;
Fig. 7 is the B-B diagrammatic cross-section in Fig. 2;
Fig. 8 is the C-C diagrammatic cross-section in Fig. 2;
Fig. 9 is the D-D diagrammatic cross-section in Fig. 2.
Specific embodiment
As shown in Figures 1 to 9, using drilling direction as the forward direction of the utility model, a kind of brill punching press one of the utility model
Body makeup is set, including from rear to the preceding binary channels water pigtail 1 for passing sequentially through threaded connection, binary channels drilling rod 2, binary channels water-jet
Device 3 and drill 4;
The inside of binary channels water pigtail 1, binary channels drilling rod 2 and binary channels hydraulic ejector 3 is provided with independent binary channels
Pipeline, the binary channels pipeline inside binary channels water pigtail 1, binary channels drilling rod 2 and binary channels hydraulic ejector 3 penetrate through respectively, bilateral
Road pipeline is divided into internal channel and outer tunnel, and internal channel entrance and outer tunnel entrance are all set at binary channels water pigtail 1;
Binary channels water pigtail 1 includes pedestal 101 and water pigtail drill rod connector 102, and the inside of pedestal 101 offers front and back perforation
The first mounting hole, the rear end of water pigtail drill rod connector 102 is rotatably connected in the first mounting hole by bearing, and water pigtail drilling rod connects
The front end of connector 102 is equipped with the first outer cone thread connector 104, and water pigtail drill rod connector 102 axially inside offers front side
Open closed first outer tunnel 105 of rear side, the inside of the first outer tunnel 105 are provided with the first inner passway tube 106 along coaxial,
The rear end of first inner passway tube 106 is fixedly mounted on the rear portion of water pigtail drill rod connector 102;
Drilling medium connector 107 and control medium connector 108 are installed on the pedestal 101 of binary channels water pigtail 1, creep into medium
The outlet end of connector 107 is connected to the first outer tunnel 105, and the outlet end and the first inner passway tube 106 for controlling medium connector 108 connect
It is logical;
The input end for creeping into medium connector 107 has been respectively communicated with drilling medium delivery pipe road 109 by threeway and pressure break is situated between
Matter conveyance conduit 110, the input end of control medium connector 108 are communicated with control medium delivery pipe road 111, creep into medium delivery pipe
Valve is provided on road 109, pressure break medium delivery pipe road 110 and control medium delivery pipe road 111;
Creeping into medium is water or wind, and control medium is high pressure water, and pressure break medium is high pressure fracture liquid;Creep into the water in medium
Or wind is static pressure state;
The cavity for being axially inside equipped with front and back perforation of binary channels drilling rod 2, cavity is interior to be provided in second along coaxial
Tube channel 201, the annular space between the second inner passway tube 201 and cavity are denoted as the second outer tunnel 202, binary channels drilling rod 2
Rear end is provided with the first inside tapered thread connector 203, and the first inside tapered thread connector 203 and 104 screw thread of the first outer cone thread connector connect
It connects, the front end of binary channels drilling rod 2 is provided with the second outer cone thread connector 204, and the front side of the first inside tapered thread connector 203 is provided with
The first support ring 205 being fixedly mounted on inside binary channels drilling rod 2, the rear portion of the second inner passway tube 201 are threaded through the first support
The inner ring of ring 205 circumferentially offers the first outer tunnel entrance in first support ring 205;
Binary channels hydraulic ejector 3 includes from rear to preceding the second inside tapered thread connector 301, the injector being successively threadedly coupled
Ontology 302, third outer cone thread connector 303, the second inside tapered thread connector 301 are threadedly coupled with the second outer cone thread connector 204,
The front side of second inside tapered thread connector 301 is provided with the second support ring 304, and the inner ring of the second support ring 304 is equipped in third
Tube channel 305 circumferentially offers the second outer tunnel entrance in second support ring 304, and ejector body 302 is internally provided with
306 and the nozzle 307 for carrying out hydraulic jetting fracturing are combined with the spool of punching press state for switching drilling state;
The second mounting hole 5 for axially inside offering front and back and penetrating through of ejector body 302,306 setting of spool combination
In the second mounting hole 5, spool combination 306 includes valve cage 6, pressure adjusting set 7, valve rod 8, the spring 9 of coaxial setting
With sliding lock 10, valve cage 6 is mounted in the second mounting hole 5, and the rear portion of valve cage 6 is protruded backward is equipped with inner tube support portion
11, the interior pipe through-hole 12 of perforation is provided in the axial direction on inner tube support portion 11, the front end of third inner passway tube 305 is mounted on inner tube
In through-hole 12, valve cage 6 is internally provided with the first limited step 13, is provided with the second limited step on the second mounting hole 5
14, the second mounting hole 5 is divided into construction section and control section by the second limited step 14, and pressure adjusting set 7 is set in valve cage 6
Interior, the front end face of pressure adjusting set 7 is contacted with the second limited step 14, and the rear end of valve rod 8 is fixedly connected with top cover 15, valve rod 8
In valve cage 6 and the rear end face of top cover 15 is contacted with the first limited step 13, and compressed spring 9, valve are arranged on valve rod 8
The front end of bar 8 passes through pressure adjusting set 7 from back to front, and the front end of valve rod 8 is provided with external screw thread and is spirally connected with sliding lock 10, sliding lock 10
It is slidably connected in the control section of the second mounting hole 5;The outlet of third inner passway tube 305 connects with the construction section of the second mounting hole 5
Logical, the high pressure water flowed out from third inner passway tube 305 acts on top cover 15,10 forward slip of sliding lock is driven, to cut off third
The connection of outer tunnel and the 4th outer tunnel 18, drilling medium (water or wind) stop conveying to drill 4, flow through third outer tunnel
The change its course nozzle 307 that converges in ejector body 302 of high pressure fracture liquid spray, compressed spring 9 is in compressive state at this time.
Ejector body 302 is equipped with leads to the axial nine parallel branched bottoms 16 of ejector body 302, each branch
Road 16 is distributed along 302 even circumferential of ejector body, and the entrance of each branched bottom 16 is connected to the second outer tunnel entrance respectively,
The front side outlet with the second mounting hole 5, all branched bottoms 16 are denoted as outside third respectively for the outlet of each branched bottom 16
Channel;
There are three nozzle 307 for carrying out hydraulic jetting fracturing is set, the entrance of each nozzle 307 leads to outside third respectively
The outlet in road, axis of the axis of each nozzle 307 with ejector body 302 are mutually perpendicular to, and each nozzle 307 is surround
The axis of ejector body 302 is arranged and the angle α between every two nozzle 307 is 120 °;The diameter and high pressure pressure of nozzle 307
The design current velocity of the pressure and the ejection water jet of nozzle 307 of splitting liquid is related.
Annular switching slot 17, annular switching are provided between the outlet of third outer tunnel and the control section of the second mounting hole 5
Slot 17 and the control section of the outlet of third outer tunnel, the entrance of each nozzle 307 and the second mounting hole 5 are respectively communicated with;
Be provided with the 4th outer tunnel 18 in third outer cone thread connector 303, the 4th outer tunnel 18 respectively with third outer tunnel
It is connected to drill 4;
The rear portion of drill 4 is equipped with third inside tapered thread connector 401, third inside tapered thread connector 401 and third outer cone
Nipple 303 is threadedly coupled;
It is provided with relief hole 19 in ejector body 302, the both ends of relief hole 19 construction section with the second mounting hole 5 respectively
It is connected with one of branched bottom 16;Relief hole 19 reduces control medium to the pressure of sliding lock 10 and by compressed spring 9
Sliding lock 10 is driven to reset, to limit the stroke of sliding lock 10 to guarantee the flexible switching of drilling state Yu punching press state.
First outer tunnel 105, the first outer tunnel entrance, the second outer tunnel 202, the second outer tunnel entrance and third outer tunnel
It is sequentially communicated and forms the outer tunnel for boring punching press integrated apparatus;
First inner passway tube 106, the second inner passway tube 201 and third inner passway tube 305 are sequentially communicated and form brill punching press
The internal channel of integrated apparatus.
The outlet of outer tunnel drilling medium (water or wind) is the outlet of each branched bottom 16 in ejector body 302, with
Realize that drilling medium (water or wind) cools down drill 4 and deslagging by outer tunnel, and outer tunnel pressure break medium (high pressure fracture
Liquid) outlet be that nozzle 307 in ejector body 302 is realized anti-reflection with generating high-pressure jet;It is (high that internal channel controls medium
Press water) outlet be located at ejector body 302 inside, with realize high pressure water by internal channel act on spool combination 306, by
The outer tunnel and drill 4 of conveying drilling medium (water or wind) are cut off, and the high pressure fracture liquid in outer tunnel is forced to change its course convergence
Nozzle 307 on to ejector body 302 sprays.
Use a kind of construction method for boring punching press integrated apparatus, comprising the following steps:
(1) select drilling construction layer position: for hard coal (primary structure coal and fragmentation coal), drilling construction is in coal seam;It is right
In the coal seam of cherry coal (granulated coal and rotten rib coal) or interbedding of soft and hard rocks, drilling construction is in roof and floor country rock;
(2) suitable hole structure and fracturing fluid are selected according to the design needs;
(3) punching press integrated apparatus is bored in assembling: passing sequentially through and is threadedly coupled binary channels water pigtail 1, binary channels drilling rod 2, bilateral
Road hydraulic ejector 3 and the composition of drill 4 bore punching press integrated apparatus;
(4) access drilling medium, pressure break medium and control medium: the outlet end of drilling medium connector 107 passes through three reduction of fractions to a common denominators
Medium and pressure break medium Jie Ru not be crept into, medium, that is, water or wind are crept into, pressure break medium is the high pressure fracture for being used for punching, pressure break
Liquid, water or wind and high pressure fracture liquid control on-off by valve, and control medium connector 108 is directly accessed control medium, i.e., high
Water is pressed, high pressure water controls on-off by valve;
(5) it creeps into: drilling and close the valve of control high pressure water on-off and the valve of control high pressure fracture liquid on-off before constructing,
It drills and opens the valve of control water or wind on-off when constructing, water or wind pass through the outer tunnel flow direction drilling for boring punching press integrated apparatus
Drill bit 4, cooling drill 4 and deslagging during drilling, guarantees that drilling is normally carried out;
(6) it creeps into medium (water or wind) and drilling process is identical as common process, when the drilling of drill 4 arrives projected depth
Stop drilling;
(7) select the mode of punching or pressure break: implement during drilling construction terminates, moves back brill high-pressure water jet punching or
Hydraulic jetting fracturing punchings for soft seam on one side while rotary drill rod, until reaching every meter designed and rush coal output;It is right
In hard coal or country rock, rotary drill rod does not implement hydraulic jetting fracturing point by point;Distance between points depends on fractured interval
Thickness, lithology, discharge capacity of pump etc. will be determined according to experiment investigation;
(8) switching drilling state is punching press state: closing the valve of control water or wind on-off, opens control high pressure water on-off
Valve, when high pressure water will conveying drilling medium outer tunnel and drill 4 cut off when, open control high pressure fracture liquid on-off
Valve, the drilling medium that outer tunnel conveys is switched to high pressure fracture liquid and carries out high-pressure water jet punching or water-jet pressure
It splits;
(9) switching punching press state is drilling state: at the end of the punching of certain point or fracturing work, closing control high pressure
The valve of fracturing fluid on-off and the valve of control high pressure water on-off, open the valve of control water or wind on-off, outer tunnel are conveyed
High pressure fracture liquid be switched to water or wind;
(10) punching or fracturing work are repeated: moving back and is drilled into next punching or fracturing work point, repeats step (8) and step
(9);
Step (2) specifically: there are two types of hole structures, first is that on earth, aperture is not solid for an opening structure, i.e. a drill bit construction
Hole, second is that two opening structures, i.e., the hole for a major diameter of first constructing, the depth and diameter in hole, which are subject to, to be met two and spuds in into tripping in
Casing, casing and drilling annular injection cement solid hole;Drill bit implementation two after solid hole using small level-one, which is spudded in, enters projected depth;Pressure
The aqueous solution that liquid includes water and combines containing the additive for being conducive to gas migration output and additive is split, it can be according to design system
It is standby, wherein to can be expansion-resisting agent, drag reducer and surfactant etc. conducive to the additive of gas migration output, fracturing fluid can also
With the active aqueous solution being made of water, Klorvess Liquid and fungicide.
It is punched out in the drilling of an opening structure or not sealing of hole when fracturing work;It is rushed in the drilling of two opening structures
Hole operation not sealing of hole, and when implementing fracturing work can sealing of hole, can not also sealing of hole;When implementation pressure break choosing in the drilling in two opening structures
When selecting sealing of hole, high pressure resistant ring flange and anti-spray orifice device are installed in part of the orifice sleeve outside drilling, tighten ring flange during pressure break,
Annular space between orifice sleeve and drilling rod is closed, forms a confined space in hole, it is every to have pressed a point with anti-spray orifice device
It bleeds off pressure, unscrew high pressure resistant ring flange and recycles borehole cleaning with static pressure water, then implement the pressure break of next point, when mash gas extraction, directly
By extraction of networking after orifice sleeve connection extraction pipeline.
The high pressure resistant ring flange and anti-spray orifice device are existing conventional equipment, and specific structure is no longer described in detail.
The present embodiment not makes any form of restriction the shape of the utility model, material, structure etc., all foundations
The technical essence of the utility model any simple modification, equivalent change and modification to the above embodiments, belong to this reality
With the protection scope of new technique scheme.