CN106150500B - ultrahigh pressure hydraulic drilling, expanding and cutting integrated device - Google Patents
ultrahigh pressure hydraulic drilling, expanding and cutting integrated device Download PDFInfo
- Publication number
- CN106150500B CN106150500B CN201610735625.1A CN201610735625A CN106150500B CN 106150500 B CN106150500 B CN 106150500B CN 201610735625 A CN201610735625 A CN 201610735625A CN 106150500 B CN106150500 B CN 106150500B
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- drill bit
- drilling
- nozzle
- sliding sleeve
- slot
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- 238000005553 drilling Methods 0.000 title claims abstract description 65
- 238000005520 cutting process Methods 0.000 title abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 230000004323 axial length Effects 0.000 claims description 2
- 239000003292 glue Substances 0.000 claims description 2
- 239000008400 supply water Substances 0.000 claims 1
- 239000003245 coal Substances 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 7
- 238000000605 extraction Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 6
- 241001074085 Scophthalmus aquosus Species 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000005086 pumping Methods 0.000 description 4
- 230000003667 anti-reflective effect Effects 0.000 description 3
- 210000004907 gland Anatomy 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 210000002445 nipple Anatomy 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/12—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by injecting into the borehole a liquid, either initially at high pressure or subsequently subjected to high pressure, e.g. by pulses, by explosive cartridges acting on the liquid
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses an ultrahigh-pressure hydraulic drilling, expanding and cutting integrated device, which comprises a drilling machine, a rotary water tail, a drill rod, a rubber pipe, a drill bit, a water pump and a water tank, wherein the drill bit is arranged on the drill rod; the drill rod is arranged on the drilling machine and is driven by the rotary machine to rotate, and the drill bit is fixed at the front end of the drill rod; the rubber tube is connected to the rear end of the drill rod through a rotary water tail; the water pump is connected between the water tank and the rubber tube and used for supplying water into the drill rod and the drill bit through the rubber tube; according to the ultrahigh-pressure hydraulic drilling, reaming and cutting integrated device, low-pressure drilling, medium-pressure reaming and high-pressure slotting are combined, so that drilling, reaming and slotting are integrated, the exposed surface of a coal body is enlarged, cracks in the coal body are increased, the coal body is fully decompressed and anti-reflection, the difficulty of gas release is improved, the effective influence range of drilling is enlarged, the gas extraction rate is remarkably improved, and the construction amount of extraction drilling is greatly reduced. The invention has the advantages of simple operation, high efficiency, obvious use effect and wide popularization and application value.
Description
Technical field
Coal seam pressure relief and permeability improvement technical field after drilling the present invention relates to mine concordant or layer-through drilling is more particularly to a kind of super
High-pressure hydraulic bores, expands, cuts integrated apparatus.
Background technology
Currently, coal still occupies important proportion in China's energy resource structure, the demand of the development of national economy to coal
Still very big, high methane and coal and gas outburst mine face volume increase pressure.It is more and more with being continuously increased for mining depth
Mine be changed into high methane, projecting mine, drilling gas extraction is prominent and to administer the basic measures of gas wide as prevention
It is general to be applied to high methane, projecting mine, but pre- pumping of drilling is carried out to coal seam, extraction rate is less than 30%, is reached to meet extraction mostly
Mark, most of mine there is a problem of finding time in advance grow, extraction borehole it is great in constructing amount.
The pre- coal-bed gas of taking out of drilling relies primarily on intrinsic crack in coal seam, is extracted out gas by drilling, this method exists
The problems such as coverage that drills is small, gas pumping rate is generally relatively low, therefore anti-reflection, increase shadow need to be carried out to drilling coal hole section coal seam
Range is rung, stress of coal seam is reduced, improves gas pumping efficiency.Hydraulic reaming, high-pressure hydraulic slot are arranged as a kind of release is anti-reflection
It applies and is widely used, but existing hydraulic reaming and slotting device operating pressure are commonly 30-50MPa, exist for solid coefficient
1.0 or more hard coal seam lacks effective anti-reflection means, and to can not achieve drilling-reaming-slot integrated for existing equipment
Function generally requires drilling construction completion, exits drilling rod and is carrying out reaming or slot operation, cumbersome, slot antireflective effect
Difference.
It is therefore desirable to which a kind of improved coal seam fast pressure relief permeability improvement device is not required to move back after the completion of drilling construction
Go out drilling rod, adjust the pressure of high pressure water, control brill-expands-cut closing and closing for bit Integrated inner carrier, and according to different coal class
Type in by the way of companding hole, high pressure slot, realizes the antireflective target of coal seam fast pressure relief.
Invention content
In view of this, the object of the present invention is to provide a kind of ultrahigh pressures to bore, expand, cuts integrated apparatus, the device is not
It only may be implemented normally to creep into, and reaming and slot can be carried out to coal seam using ultra-high pressure water fluid jet during moving back brill.
The ultrahigh pressure of the present invention bores, expands, cutting integrated apparatus, including drilling machine, rotation water tail, drilling rod, sebific duct, brill
Head, water pump, water tank；The drilling rod is installed on drilling machine and by favourable turn driving rotation, and the drill bit is fixed on drilling rod front end；The glue
Pipe is connected to drilling rod rear end by rotating water tail；The water pump be connected between water tank and sebific duct for by sebific duct to drilling rod and
It supplies water in drill bit；The drill bit side is equipped with multiple nozzles, and the spring and sliding sleeve in drill bit are controlled by adjusting water-aspirator pressure, into
And control close and come realization low pressure drilling, the function in middle companding hole and high pressure slot of drill bit side nozzle.
Further, the rotation water tail is heavy-load type stainless steel structure.
Further, the drilling rod is inside and outside double containment.
Further, the sliding sleeve is set to the inside of drill bit and the cooperation that slides axially, the lateral wall of sliding sleeve and drill bit
Inner wall is step surface structure, and the spring is axially supported between the shoulder of drill bit endoporus and the shoulder of sliding sleeve outer wall, described
Drill bit endoporus corresponds to the limit clamp spring being equipped on rear side of sliding sleeve for being limited in an axial direction to sliding sleeve, and sliding sleeve front end is equipped with for flow
To the radial hole of chisel edge；The front end face of sliding sleeve is fixed with the piston to match with chisel edge endoporus aperture.
Further, the nozzle is fixed on the side wall of drill bit and is arranged in the radial outside of sliding sleeve；Nozzle includes reaming
Nozzle and slot nozzle；The reaming jet nozzle and slot nozzle arranges from front to back and edge between reaming jet nozzle and slot nozzle
The distance of drill bit axial direction is equal with the axial length for the part that drill bit endoporus is slidably matched with sliding sleeve outer wall.
Further, the reaming jet nozzle and slot nozzle are cemented carbide material, and reaming jet nozzle and slot nozzle are adopted
It is designed with inline type, reaming jet nozzle is 2-3 a and evenly distributed along drill bit circumferencial direction, and slot nozzle is 1-2, reaming spray
The aperture of mouth is all higher than the aperture of slot nozzle, and the aperture of each reaming jet nozzle is different, will when 2 slot nozzles are arranged
2 slot nozzles are evenly distributed along drill bit circumferencial direction and the aperture of 2 slot nozzles is different.
Further, the sebific duct is furnished with PVC sheath.
Further, the water pump metered flow is 80-125L/min, rated pressure 100MPa.
The beneficial effects of the invention are as follows：The present invention ultrahigh pressure bore, expand, cut integrated apparatus, low pressure is drilled, in
Companding hole, high pressure slot are combined, and realize drilling, reaming, slot in one, high-pressure water is bored through super-high-pressure hose, super-pressure
Bar by brill, expand, cut bit Integrated different spray nozzles and project, form ultra-high pressure water fluid jet and coal body washed away, cut, is removed,
Flat slot is formed inside coal body, increases coal body exposure, and coal body internal crack increases, and coal body obtains abundant release, increasing
Thoroughly, gas release complexity is improved, the effective coverage of drilling is improved, gas pumping rate significantly improves, greatly reduces
Extraction borehole construction volume.The present invention is easy to operate, efficient, and using effect is notable, has and is widely popularized applying value.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is drill bit structure schematic diagram；
Fig. 3 is rotation water stern construction schematic diagram；
Fig. 4 is jackrod structure schematic diagram.
Specific implementation mode
Fig. 1 is the structural diagram of the present invention；Fig. 2 is drill bit structure schematic diagram；Fig. 3 is rotation water stern construction schematic diagram；
Fig. 4 is jackrod structure schematic diagram；As shown in the figure：The ultrahigh pressure of the present embodiment bores, expands, cutting integrated apparatus, including drilling machine
1, rotation water tail 4, drilling rod 2, sebific duct 5, drill bit 3, water pump 6, water tank 7；The drilling rod 2 is installed on drilling machine 1 and is turned by favourable turn driving
Dynamic, the drill bit 3 is fixed on 2 front end of drilling rod；The sebific duct 5 is connected to 2 rear end of drilling rod by rotating water tail 4；The water pump 6 connects
It is connected between water tank 7 and sebific duct 5 for being supplied water into drilling rod 2 and drill bit 3 by sebific duct 5；3 side of the drill bit is equipped with multiple sprays
Mouth by adjusting the spring and sliding sleeve 35 in 6 pressure of water pump control drill bit 3, and then controls closing and coming for 3 side nozzle of drill bit
Realize low pressure drilling, the function in middle companding hole and high pressure slot；Drill bit 3 and drilling rod 2 are hollow structure, and 3 side wall of drill bit is different
Position Design has the nozzle of different model, by the adjustment of 6 pressure of water pump, controls the spring and sliding sleeve 35 in drill bit 3, realizes and bore
First 3 different location, different model nozzle closing and opening, and has low pressure (0-10MPa) drilling, middle pressure (10-30MPa) reaming, height
The function of (30-100MPa) slot, high pressure water is pressed to be projected by nozzle, washed away, removed, cut to coal seam, drilling rod 2 and brill
First 3 rotate under the drive of drilling machine 1, do not exit when drilling construction that the reaming of coal hole section weak seam can be realized in drilling rod 2, hard coal seam is cut
Stitch the antireflective target of release；
In the present embodiment, the rotation water tail 4 is heavy-load type stainless steel structure, and rotation water tail 4 being capable of connection rubber tube 5 and brill
Bar 2 and the rotation for adapting to drilling rod 2 realize connection and sealing between non-rotating part and revolving part, rotate water tail 4 in the present embodiment
Structure as shown in figure 3, include tool joint 45, cylinder 42, shell 44, preceding butt tube, rear butt tube and holddown spring；Cylinder
42, shell 44 and 45 three of tool joint arrange and are coaxially disposed in order, the coaxial arrangement of preceding butt tube in cylinder 42 simultaneously
And the two axial sliding fit, rear butt tube are coaxially fixed on tool joint 45 and put in shell 44, shell 44 and cylinder 42
Between be sealedly and fixedly connected, between rear butt tube and shell 44 by bearing assembly be rotatablely connected and with preceding butt tube it is coaxially right
It connects, is used to provide for preceding butt tube before the holddown spring is sleeved on outside butt tube and before being supported between butt tube and cylinder 42
Elastic force makes to compress in an axial direction between preceding butt tube and rear butt tube, and cylinder 42 is equipped with to be connect for the high-pressure water of connection rubber tube 5
First 41, bearing assembly includes two journal bearings and the axis that is supported between two journal bearings along rear butt tube axial alignment
Axial thrust bearing；A block 43, one of block are respectively equipped between the axial thrust bearing and two journal bearings
43 are pressed in the inner ring of corresponding journal bearing in an axial direction, another block 43 is pressed in the outer of corresponding journal bearing in an axial direction
Circle；Fixed there are one gland inside one end that shell is connect with cylinder, the one end of shell far from cylinder is equipped with radially inward convex
Bearing assembly is pressed by gland and is positioned in boss by platform, between cylinder 42 and preceding butt tube, shell 44 and rear butt tube and pressure
It is sealed by a seal ring between lid and between gland and rear butt tube, using unique leakless type Seal Design, rotation
Required torsion is small, optional 0 ° or 90 ° of 41 linked vector graph of high-pressure water connector, minimum pressure-bearing 150Mpa.
In the present embodiment, the drilling rod 2 is inside and outside double containment, as shown in figure 4, passing through cone between drilling rod 2 and drill bit 3
Shape is threadedly coupled, and one end of drilling rod 2 is equipped with corresponding external screw thread, and drill bit 3 is equipped with corresponding internal thread, and inside and outside double containment is
Refer to and be equipped with corresponding inner seal ring 21 and exterior seal ring 22 at the externally threaded both ends of drilling rod 2, after so that drilling rod 2 and drill bit 3 is connected
The both ends of its corresponding connection screw thread have sealing ring to be sealed, overall processing manufacture, welding, and shallow thread design is more conducive to arrange
Slag；Carrying out ultrahigh pressure reaming or when slot operation, the pressure of working medium water is high, when drilling, reaming, slot operation all
It is to use manual operation, thus drilling rod 2 is required to have sufficiently high compression strength and stringent leakproofness, by using inside and outside
Double containment, sealing performance can reach ideal effect；It is connected using nipple between sebific duct 5 and the rotation water tail 4,
To ensure the leakproofness under ultra-high pressure condition
In the present embodiment, the sliding sleeve 35 is set to the inside of drill bit 3 and the cooperation that slides axially, the lateral wall of sliding sleeve 35 with
And the inner wall of drill bit 3 is step surface structure, the spring is axially supported on the platform of the shoulder and 35 outer wall of sliding sleeve of 3 endoporus of drill bit
Between shoulder, 3 endoporus of the drill bit corresponds to 35 rear side of sliding sleeve and is equipped with the limit clamp spring for being used for being limited in an axial direction to sliding sleeve 35, sliding
It covers 35 front ends and is equipped with the radial hole that water supply flows to 3 front end 31 of drill bit；The front end face of sliding sleeve 35 is fixed with and 3 front end of drill bit, 31 endoporus
The piston 32 that aperture matches；The nozzle is fixed on the side wall of drill bit 3 and is arranged in the radial outside of sliding sleeve 35；Nozzle packet
Include reaming jet nozzle 33 and slot nozzle 34；The reaming jet nozzle 33 and slot nozzle 34 arranges from front to back and reaming jet nozzle 33
The axial direction for the part being slidably matched with 3 endoporus of drill bit with 35 outer wall of sliding sleeve at a distance from 3 axial direction of drill bit between slot nozzle 34
Equal length；3 different location of drill bit is designed with reaming jet nozzle 33 and slot nozzle 34, it can be achieved that high, medium and low voltage water is freely cut
It changing, i.e., when hydraulic pressure is less than 10MPa, sliding sleeve 35 is adjacent to limit clamp spring under the pressure of the spring, and forward bolt piston 32 is in open state,
Water is flowed out at the cutting edge of 3 front end 31 of drill bit by the radial hole of 3 front end 31 of drill bit, it can be achieved that the normal drilling function of drilling；
When hydraulic pressure is between 10-30MPa, sliding sleeve 35 by spring-compressed and moves forward a certain distance under hydraulic pressure effect, makes cunning
The piston 32 for covering 35 front ends is put in 3 front end of drill bit, 31 endoporus, and then the water route for flowing to 3 front end 31 of drill bit is closed, but slot
Nozzle 34 is still closed by sliding sleeve 35, and water is projected by the way that reaming jet nozzle 33 is radial at this time, starts reaming work；When hydraulic pressure continues to increase
When to 30-100MPa, under the action of high pressure water, sliding sleeve 35 is moved at reaming jet nozzle 33, reaming jet nozzle 33 is blocked, at this time
High-pressure water is directly gone out by 34 radial spray of slot nozzle, starts slot work.
In the present embodiment, the reaming jet nozzle 33 and slot nozzle 34 are cemented carbide material, reaming jet nozzle 33 and are cut
Seam nozzle 34 is all made of inline type design, and reaming jet nozzle 33 is 2-3 and, slot spray evenly distributed along 3 circumferencial direction of drill bit
Mouth 34 is 1-2, and the aperture of reaming jet nozzle 33 is all higher than the aperture of slot nozzle 34, the mutual not phase in the aperture of each reaming jet nozzle 33
Together, when 2 slot nozzles 34 are arranged by 2 slot nozzles 34 and 2 slot nozzles evenly distributed along 3 circumferencial direction of drill bit
34 aperture is different, i.e., the embedded side wall for being fixed on drill bit 3 of reaming jet nozzle 33 and slot nozzle 34, reaming jet nozzle 33 are
2-3, respectively tri- kinds of different sizes of 2.5mm, 3.0mm, 3.5mm, slot nozzle 34 are 1-2, respectively 1.5mm, 2.0mm
Two kinds of different sizes can select the nozzle of dimension, the reaming being optimal or slot effect according to the solid coefficient of coal
In the present embodiment, the sebific duct 5 is furnished with PVC sheath, is used for the transmission of high-pressure water, can bear 150MPa pressure.
In the present embodiment, the water pump metered flow is 80-125L/min, rated pressure 100MPa.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although with reference to compared with
Good embodiment describes the invention in detail, it will be understood by those of ordinary skill in the art that, it can be to the skill of the present invention
Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this
In the right of invention.
Claims (6)
1. a kind of ultrahigh pressure bores, expands, cuts integrated apparatus, it is characterised in that：Including drilling machine, rotation water tail, drilling rod, glue
Pipe, drill bit, water pump, water tank；The drilling rod is installed on drilling machine and is driven by drilling machine and rotated, and the drill bit is fixed on drilling rod front end；
The sebific duct is connected to drilling rod rear end by rotating water tail；The water pump be connected between water tank and sebific duct for by sebific duct to
It supplies water in drilling rod and drill bit；The drill bit side be equipped with multiple nozzles, by adjusting water-aspirator pressure control drill bit in spring and
Sliding sleeve, and then control close and come realization low pressure drilling, the function in middle companding hole and high pressure slot of drill bit side nozzle；It is described
Sliding sleeve is set to the inside of drill bit and the cooperation that slides axially, and the lateral wall of sliding sleeve and the inner wall of drill bit are step surface structure,
The spring is axially supported between the shoulder of drill bit endoporus and the shoulder of sliding sleeve outer wall, and the drill bit endoporus corresponds on rear side of sliding sleeve
Equipped with the limit clamp spring for being limited in an axial direction to sliding sleeve, sliding sleeve front end, which is equipped with to supply water, flows to the radial hole of chisel edge；
The front end face of sliding sleeve is fixed with the piston to match with chisel edge endoporus aperture；The nozzle be fixed on the side wall of drill bit and
It is arranged in the radial outside of sliding sleeve；Nozzle includes reaming jet nozzle and slot nozzle；The reaming jet nozzle and slot nozzle by preceding to
It arranges afterwards and reaming jet nozzle is slidably matched at a distance from drill bit axial direction with sliding sleeve outer wall and drill bit endoporus between slot nozzle
Part axial length it is equal.
2. ultrahigh pressure according to claim 1 bores, expands, cuts integrated apparatus, it is characterised in that：The rotation water tail
For heavy-load type stainless steel structure.
3. ultrahigh pressure according to claim 1 bores, expands, cuts integrated apparatus, it is characterised in that：The drilling rod is
Inside and outside double containment.
4. ultrahigh pressure according to claim 1 bores, expands, cuts integrated apparatus, it is characterised in that：The reaming jet nozzle
It is cemented carbide material with slot nozzle, reaming jet nozzle and slot nozzle are all made of inline type design, and reaming jet nozzle is 2-3
And evenly distributed along drill bit circumferencial direction, slot nozzle is 1-2, and the aperture of reaming jet nozzle is all higher than the hole of slot nozzle
The aperture of diameter, each reaming jet nozzle is different, when 2 slot nozzles are arranged by 2 slot nozzles along drill bit circumferencial direction
Evenly distributed and 2 slot nozzles apertures are different.
5. ultrahigh pressure according to claim 1 bores, expands, cuts integrated apparatus, it is characterised in that：The sebific duct is furnished with
PVC sheath.
6. ultrahigh pressure according to claim 1 bores, expands, cuts integrated apparatus, it is characterised in that：The water pump volume
Constant flow is 80-125L/min, rated pressure 100MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610735625.1A CN106150500B (en) | 2016-08-26 | 2016-08-26 | ultrahigh pressure hydraulic drilling, expanding and cutting integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610735625.1A CN106150500B (en) | 2016-08-26 | 2016-08-26 | ultrahigh pressure hydraulic drilling, expanding and cutting integrated device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106150500A CN106150500A (en) | 2016-11-23 |
| CN106150500B true CN106150500B (en) | 2018-08-10 |
Family
ID=57343579
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610735625.1A Active CN106150500B (en) | 2016-08-26 | 2016-08-26 | ultrahigh pressure hydraulic drilling, expanding and cutting integrated device |
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| Country | Link |
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| CN (1) | CN106150500B (en) |
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| CN204060514U (en) * | 2014-04-22 | 2014-12-31 | 中煤科工集团重庆研究院有限公司 | High-pressure water jet drilling and expanding device for coal mine through-layer drilling |
| CN204827248U (en) * | 2015-06-08 | 2015-12-02 | 平顶山市铁福来机电设备有限公司 | Dual -purpose split type double jet drill bit that punches a hole creeps into |
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2016
- 2016-08-26 CN CN201610735625.1A patent/CN106150500B/en active Active
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