CN-121273218-B - Sectional hydraulic pore-forming screen pipe penetrating device and method

Abstract

The invention relates to a sectional hydraulic hole-making sieve tube penetrating device and a method, belonging to the technical field of hydraulic hole-making construction, wherein the penetrating device comprises a shell, a high-pressure orifice device is slidably arranged in the shell, a fixed coil wheel and a rotatable water wheel are arranged in the middle of the outer wall of the shell, a circle of coil and a circle of electrode plates are arranged on the coil wheel, a circle of fan blades and a circle of permanent magnets are arranged on the water wheel, the high-pressure orifice is arranged at the water wheel, a first spring, a first ball body, a second spring and an extruder are sequentially arranged in the high-pressure orifice device from front to back, a water passing hole is arranged at the first spring, a detachable clamping mechanism is arranged between the outer wall of the high-pressure orifice device and the inner wall of the shell, and when the high-pressure orifice device is clamped with the shell, the water passing hole corresponds to the high-pressure orifice, so that the problem of low efficiency caused by the fact that a drill rod is required to pass in and out a plurality of times of holes is solved in the current hydraulic hole-making construction process.

Inventors

• LI KE
• MA YANLIANG
• HOU LIBIN
• WANG FEI
• JI YANG
• YANG CHENGMING
• MA YUNFEI
• LV WEI

Assignees

• 山西潞安环保能源开发股份有限公司五阳煤矿

Dates

Publication Date

20260508

Application Date

20251112

Claims (3)

1. 1. The sectional hydraulic pore-forming screen pipe penetrating device is characterized by comprising a shell (1), wherein a high-pressure spray hole device (2) is slidably arranged in the shell (1), a fixed coil wheel (3) and a rotatable water wheel (4) are arranged in the middle of the outer wall of the shell (1), a circle of coil (5) and a circle of electrode plates are arranged on the coil wheel (3), a circle of fan blades (6) and a circle of permanent magnets are arranged on the water wheel (4), a high-pressure spray hole (7) is arranged at the water wheel (4) of the shell (1), a first spring (8), a first ball body (9), a second spring (10) and an extruder (11) are sequentially arranged in the high-pressure spray hole device (2) from front to back, a water passing hole (12) is arranged at the first spring (8), and a detachable clamping mechanism is arranged between the outer wall of the high-pressure spray hole device (2) and the inner wall of the shell (1), and when the high-pressure spray hole device (2) is clamped with the shell (1), the water passing hole (12) corresponds to the high-pressure spray hole (7); The high-pressure jet hole (7) is arranged at the first annular groove (15) of the shell (1), a high-pressure jet nozzle is fixedly arranged inside the high-pressure jet hole (7), the coil wheel (3) further comprises two first annular rings (16), the two first annular rings (16) are rotatably sleeved at the first annular groove (15), a circle of fan blades (6) is fixedly arranged between the two first annular rings (16), a circle of permanent magnets are fixedly arranged on the first annular ring (16) close to one side of the coil wheel (3), the high-pressure jet hole (7) is arranged at the first annular groove (15) of the shell (1), and a high-pressure jet nozzle is fixedly arranged inside the high-pressure jet hole (7), the coil wheel (3) further comprises two coaxial second annular rings (17), the two second annular rings (17) are fixedly sleeved at the first annular groove (15), a circle of coils (5) are fixedly arranged between the two second annular rings (17), and the coils (5) are sleeved at the positions corresponding to the electrode plates (5) in a closed circuit; The high-pressure jet orifice device (2) is of a cylindrical structure with openings at the front end and the rear end, the outer wall of the high-pressure jet orifice device (2) is in sliding contact with the inner wall of the shell (1), a first diameter section (18), a second diameter section (19), a third diameter section (20), a fourth diameter section (21) and a fifth diameter section (22) with the inner diameter gradually enlarged are sequentially arranged in the high-pressure jet orifice device (2) from front to back, a first spring (8) is arranged in the second diameter section (19), a first ball body (9) is arranged in the third diameter section (20), a second spring (10) is arranged in the fourth diameter section (21), an extruder (11) is arranged in the fifth diameter section (22), a second annular groove (26) is further arranged on the outer wall of the high-pressure jet orifice device (2), the second annular groove (26) is positioned on the outer side of the third diameter section (20), and the water passing hole (12) is arranged at the second annular groove (26); The front end of the first spring (8) is fixedly connected with the front inner wall of the second diameter section (19), the rear end of the first spring (8) is fixedly connected with the first sphere (9), the front end of the second spring (10) is fixedly connected with the front inner wall of the fourth diameter section (21), and the rear end of the second spring (10) is fixedly connected with the front end surface of the extruder (11); The extruder (11) is of a cylindrical structure with openings at the front end and the rear end, the outer wall of the extruder (11) is in sliding contact with the inner wall of the fifth diameter section (22), and a circle of positioning release clamping grooves (24) are formed in the middle of the outer wall of the extruder (11); The clamping mechanism comprises a positioning steel ball (29), wherein a clamping groove (27) is formed in the inner wall of the shell (1), the clamping groove (27) is positioned at the rear side of the first annular groove (15), a fixed groove (28) communicated with the inside and the outside is formed in the side wall of the fifth diameter section (22) of the high-pressure orifice device (2), and the positioning steel ball (29) is arranged in the fixed groove (28); the device also comprises a second sphere (30), wherein the second sphere (30) can enter from the rear end opening of the shell (1) until abutting against the rear end opening of the extruder (11); the water flow is sprayed outwards through a circle of high-pressure spray holes (7) and impacts the fan blades (6), so that the water wheel (4) starts to rotate, the sprayed water flow starts to perform cavitation operation, the water wheel (4) drives the fan blades (6) to synchronously rotate, the fan blades (6) drive the permanent magnets to rotate, the permanent magnets are enabled to continuously change relative to the fixed coil (5), magnetic flux in the coil (5) is enabled to periodically change, alternating electromotive force is induced in the coil (5) through the change of the magnetic flux, when the coil (5) and the electrode plates form a closed loop, alternating electromotive force driving current flows in the coil (5) and the electrode plates, electric pulse energy is generated, high-voltage pulse discharge is performed in a saturated water coal reservoir, pulse high voltage causes partial discharge in a partial defect or gap in the coal rock, an initial discharge channel is established, the partial discharge channel is rapidly connected with continuous accumulation and release of energy, the pulse voltage continuously rises, the discharge channel rapidly expands in the coal rock, a liquid-electricity effect is generated, electromagnetic energy is converted into impact energy, and the impact wave acts on a coal bed in a non-contact mode, and the impact wave acts on the coal bed to expand coal bed, and fatigue and coal is promoted.
2. 2. The segmented hydraulic pore-forming screen pipe penetrating device according to claim 1, wherein an external thread (13) for connecting with a drill bit is arranged at the front end of the casing (1), and an internal thread (14) for connecting with a drill rod is arranged at the rear end of the casing (1).
3. 3. A method for penetrating a segmented hydraulic pore-forming screen pipe, which adopts the segmented hydraulic pore-forming screen pipe penetrating device as claimed in claim 1, and is characterized by comprising the following steps: The method comprises the steps of firstly, in the initial stage of coal rock drilling, a high-pressure jet orifice device (2) is clamped with a shell (1) through a clamping mechanism, drilling equipment drives a drill rod, a penetrating device and a drill bit to synchronously drill, meanwhile, water flow is input into the drill rod, the water flow directly passes through the penetrating device and is output into the drill bit, conventional fluid erosion and mechanical drilling operation is executed at the moment, along with the increase of water pressure, a first spring (8) reaches the maximum compression degree, the front end outlet of the high-pressure jet orifice device (2) is closed, water flow input from the rear end opening of the shell (1) can only be output from a water passing hole (12), the water flow is sprayed outwards through a circle of high-pressure jet orifice (7) and impacts a fan blade (6), so that a water wheel (4) starts to rotate, the water wheel (4) drives the fan blade (6) to synchronously rotate, and a permanent magnet is driven to rotate relative to a fixed coil (5), so that the periodical change in the coil (5) causes alternating magnetic flux in the coil (5) to induce alternating electromotive force in the coil (5), the coil (5) and the electrode forms a closed electric current alternating current, and the electric current flows in a pulse electrode alternating current flowing layer, and the pulse energy storage pulse current is saturated in a water storage layer; Step two, in the hole making operation process, the expansion and shaping of the holes are accurately realized by controlling the water pressure and the electric pulse discharge frequency and intensity; Step three, after the hole making operation is finished, the preparation work before entering the lower screen pipe (31), an operator inputs the second ball body (30) from the rear end opening of the shell (1), the second ball body (30) moves forwards to the rear end opening of the extruder (11) and seals the rear end opening of the extruder (11) under the continuous impact of water flow, so that the water flow is prevented from passing through the extruder (11) and the high-pressure jet hole device (2), the water pressure is gradually increased due to the fact that the water flow cannot pass through the extruder, and therefore the clamping mechanism is separated from a clamping state, and under the continuous pushing of the water flow, the high-pressure jet hole device (2), the extruder (11) and the second ball body (30) slide forwards in the shell (1) until the second ball body slides outwards from the front end opening of the shell (1), so that necessary channel conditions are created for the smooth falling of the screen pipe (31); And step four, finally, performing the operation of the screen pipe (31).

Description

Sectional hydraulic pore-forming screen pipe penetrating device and method Technical Field The invention belongs to the technical field of hydraulic hole making construction, and particularly relates to a device and a method for penetrating a segmented hydraulic hole making sieve tube. Background In the coal mining process, gas control is a key link for guaranteeing safe production. Taking Shanxi Luan mining area as an example, the method has the prominent problems of high coal seam gas content, soft coal quality, poor air permeability, severe change of occurrence, difficult pore forming, poor gas pre-pumping effect and the like. At present, partial coal mines adopt a hydraulic cave-making coal seam permeability-increasing technology to improve gas extraction efficiency. However, the existing hydraulic hole-making construction process has obvious defects, when the directional hydraulic hole-making long drilling of the coal seam is constructed, the directional drilling is required to be constructed firstly, then the drill is removed, the drill is replaced by a high-pressure jet orifice device to carry out segmented hydraulic hole making, then the drill is removed again, a hole protection drill rod is replaced, the drill is carried out to the bottom of the hole, a screen pipe is arranged to the bottom of the hole, and finally the hole-making and hole-sealing are carried out. The whole process is carried out by drilling the drill rod in and out for 3 times, wherein the drill rod moving after the hole is formed in the last two times consumes a great deal of time, the actual benefit cannot be generated, the production efficiency is low, and the construction cost is increased. Meanwhile, the existing soft coal seam permeability increasing technology also faces a plurality of problems in application, such as easy hole collapse of drilling when a hydraulic technology is adopted, and potential safety hazards of holding drilling, spraying holes, gas overrun and the like are caused. Disclosure of Invention The invention overcomes the defects of the prior art, provides a device and a method for penetrating a segmented hydraulic pore-forming sieve tube, and solves the problem of low efficiency caused by the fact that a drill rod needs to enter and exit a drill hole for multiple times in the existing hydraulic pore-forming construction process. In order to achieve the above purpose, the present invention is realized by the following technical scheme. The utility model provides a segmentation water conservancy pore-forming screen pipe penetrating device, which comprises a housing, be provided with the high-pressure orifice ware in the inside slip of shell, be provided with a fixed coil wheel and a rotatable water wheel at the outer wall middle part of shell, be provided with round coil and round electrode slice on the coil wheel, be provided with round flabellum and round permanent magnet on the water wheel, the shell is provided with the high-pressure orifice in water wheel department, first spring in high-pressure orifice ware inside has set gradually from front to back, first spheroid, the second spring, the extruder, the high-pressure orifice ware is provided with the water hole in first spring department, be provided with the joint mechanism that can break away from between the outer wall of high-pressure orifice ware and shell inner wall, when high-pressure orifice ware and shell looks joint, the water hole corresponds with the high-pressure orifice. Further, an external thread for connecting with a drill bit is arranged at the front end of the shell, an internal thread for connecting with a drill rod is arranged at the rear end of the shell, a first concave annular groove is arranged in the middle of the outer wall of the shell, and the coil wheel and the water wheel are arranged in the first annular groove. The water wheel further comprises two first circular rings which are rotatably sleeved at the first annular groove, a circle of fan blades is fixedly arranged between the two first circular rings, a circle of permanent magnets is fixedly arranged on the first circular ring which is close to one side of the coil wheel, the high-pressure spray hole is arranged at the first annular groove of the shell, and a high-pressure spray nozzle is fixedly arranged inside the high-pressure spray hole. The coil wheel further comprises two coaxial second circular rings which are fixedly sleeved at the first annular groove, a circle of coil is fixedly arranged between the two second circular rings, electrode plates are fixedly arranged beside each coil, and a closed loop is formed by the electrode plates and the corresponding coils. The high-pressure jet orifice device comprises a shell, a high-pressure jet orifice device, a first diameter section, a second diameter section, a third diameter section, a fourth diameter section and a fifth diameter section, wherein the high-pressure jet orifice device is of a cylindrical structur