CN113846971A - Mechanical hydraulic drilling and cave-making integrated device and operation method - Google Patents
Mechanical hydraulic drilling and cave-making integrated device and operation method Download PDFInfo
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- CN113846971A CN113846971A CN202111151832.XA CN202111151832A CN113846971A CN 113846971 A CN113846971 A CN 113846971A CN 202111151832 A CN202111151832 A CN 202111151832A CN 113846971 A CN113846971 A CN 113846971A
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- 238000005553 drilling Methods 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 32
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 63
- 230000009471 action Effects 0.000 claims description 10
- 239000000956 alloy Substances 0.000 claims description 7
- 229910045601 alloy Inorganic materials 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 7
- 230000036346 tooth eruption Effects 0.000 claims description 6
- 230000006835 compression Effects 0.000 claims description 3
- 238000007906 compression Methods 0.000 claims description 3
- 230000005484 gravity Effects 0.000 claims description 3
- 239000003245 coal Substances 0.000 abstract description 20
- 230000008569 process Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 230000035699 permeability Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
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- 230000004048 modification Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/18—Drilling by liquid or gas jets, with or without entrained pellets
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/26—Drill bits with leading portion, i.e. drill bits with a pilot cutter; Drill bits for enlarging the borehole, e.g. reamers
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Abstract
The invention relates to the technical field of coal bed gas control, in particular to a mechanical hydraulic drilling and cave-making integrated device and an operation method. The mechanical cave-making process adopted by the invention is not greatly influenced by the coal bed condition and parameters, the coal yield and the anti-reflection pressure relief effect are relatively stable, and the mechanical cave-making process has the advantages of long cave-making depth, high cave-making efficiency and the like.
Description
Technical Field
The invention relates to the technical field of coal seam gas control, in particular to a mechanical hydraulic drilling and cave-making integrated device and an operation method.
Background
For coal seams which are poor in air permeability and difficult to extract, in order to improve the extraction efficiency of bedding drilling and reduce the construction amount of drilling, the popularization and application of a large-diameter cave-making, permeability-increasing and pressure-releasing technology are started, and mechanical cave making and hydraulic cave making can be divided according to the cave making mode. The pressure relief and permeability increase principle of the coal bed and the coal bed are basically the same, and the gas permeability of the coal bed is improved by forming holes to release gas accumulation potential energy in the coal bed, so that the permeability increase purpose is realized. The difference is that hydraulic cave-making is to generate holes by impacting coal in a drill hole with high-pressure water jet, and the cave-making effect is greatly influenced by factors such as occurrence of coal seams, hardness of the coal and the like, and generally speaking, the harder the coal, the less the coal output and the worse the cave-making effect.
The current hydraulic hole-making technology and equipment have certain limitations. Firstly, the construction process for making the holes has the disadvantages of long construction time and low hole making efficiency. The hydraulic hole-making permeability-increasing pressure-relief technology firstly carries out conventional drilling, then withdraws from the switching hole-making device, takes the hole-making interval as 8m and the length of a single hole as 1m as an example, the hydraulic hole-making single hole-making time is about 40-50 min, wastes labor and is low in efficiency, and normal connection can not be met. Secondly, the cave-making device is difficult to satisfy the actual demand, and the cave-making depth is not enough. When the depth of the hole-making is increased, the pressure lost along the way by the initial water pressure is correspondingly increased, so that the maximum hole-making depth is not enough, and the requirement of a long working surface is difficult to meet.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to provide a mechanical hydraulic drilling and hole making integrated device with long hole making depth and high hole making efficiency and an operation method.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a mechanical type hydraulic drilling and cave-making integrated device, includes drilling rod, one end and the cave-making device that the drilling rod is connected and the drill bit that is connected with the other end of cave-making device, the cave-making device include the cave-making main part of cavity structure, install rotatable reamer bit and setting jump ring, unit head, spring and the push rod in the cave-making main part of making in the cave main part through the rotation axis.
The clamp spring is arranged in a clamping groove formed in the inner wall of the hole making main body, a step is arranged on the inner wall of the hole making main body and is positioned behind the expanding bit, the clamp spring is fixedly arranged behind the step, the power head can be axially movably arranged in a cavity of the hole making main body between the step and the clamp spring, a push rod is arranged at the front end of the power head, the spring is sleeved on the outer sides of the power head and the push rod, the front end of the spring abuts against the step, and the rear end of the spring is connected with the power head; the section of push rod be the rectangle, the rear end of push rod install on the power head, the rear end of push rod install the rubber body, initial position in the time, the rear end of push rod support and lean on the rear end side of reaming drill bit.
The rear end of the power head is convenient for being connected with the clamp spring and is provided with a clamping groove structure through which internal water flows pass, the front end of the power head is provided with a plurality of water inlet holes, and the water inlet holes are uniformly distributed at the front end of the power head in a circumferential mode.
The reaming bit be cutter arm column structure, the front end of reaming bit be the toper rear end for saw-shaped, reaming bit rear end top be the circular arc structure to the rotation axis hole center coincidence on circular arc center and the reaming bit, the reaming bit on install two rows of alloy cutting teeth that mutually perpendicular distributes, the alloy cutting teeth central line be perpendicular with the direction of advance of this device.
An operation method of a mechanical hydraulic drilling and hole making integrated device comprises the following steps:
the method comprises the following steps: adopting a 'retreating type' to make a cave, namely adopting a low-pressure water to drill a hole to a designed depth;
step two: adopting low-pressure water to drill to the designed depth, and then retreating to the designed position according to the design parameters of the hole-making drill;
step three: stopping pushing when the hole is retreated to the position needing hole making, keeping the drilling tool rotating, and opening the hole expanding drill bit to make holes;
step four: after the primary hole making is finished, the expanding drill bit is withdrawn, the hole is normally retreated to the next hole making position, and the secondary hole making is carried out according to the third step, so that the circular operation is carried out;
step five: after the hole making is completed, the device is withdrawn, and the device is cleaned and maintained, so that the device is convenient to use next time.
And step three, keeping the power head to rotate, increasing the water pressure of a pump station until the hole expanding drill bit is completely opened, then keeping the pressure, pushing the designed length forward to carry out hole making, recovering the water pressure after the hole making is completed for one time in the step four, withdrawing the hole expanding drill bit, normally retreating the drill bit to the next hole making position, switching the high pressure again, opening the hole expanding drill bit, and carrying out the second hole making according to the step three so as to carry out the circulating operation.
When adopting high low pressure water switching mode reaming cave-making, when drilling the state, the reamer bit is not opened, then the inside water pressure P of device should satisfy:
P≤F1/S，P1＝F1/S
wherein, F1Is the critical pressure at which the spring deforms,s is the effective cross-sectional area at the end face of the power head, namely:
wherein D is1Diameter of the power head main body, d1The diameter of the water inlet hole is adopted, n is the number of the water inlet holes, and the area of the part of the clamping groove is ignored;
in the hole-making state, in order to form the hole with the largest diameter, namely, the hole-expanding drill bit smoothly rotates 90 degrees under the action of the push rod, the upper end surface of the push rod is tangent to a construction circle where a fillet at the upper right of the hole-expanding drill bit is located. At the moment, the push rod moves along the axial direction along the stroke L and meets the following requirements:
wherein r is the radius of a fillet at the upper right of the reaming bit; h is the total width of the reaming bit;
according to the device structure, the stroke L of the push rod is the compression deformation of the spring, and the pressure F acting on the power head meets the following requirements:
F＝k·L
wherein, k is the spring elastic modulus, then the inside water pressure P of device should satisfy:
in summary, when the device is normally drilled, the internal water pressure is less than P1At a rotational speed of less than n0(ii) a When reaming and making holes, the water pressure is from P1Gradually increasing pressure to P2Or a rotational speed greater than n0And gradually opening the reaming bit until the reaming bit is 90 degrees, and completely opening the reaming bit to the maximum hole-making diameter.
And step three, maintaining the water pressure of the pump station, increasing the torque of the drilling machine, and expanding the reaming bit under the action of inertia force to perform hole making.
When the drilling machine torque increasing mode is adopted for reaming and cave-making, in the normal drilling state, the centripetal force F generated by the rotation of the reaming bit0It should satisfy:
F0＝mrω2≤G
wherein m is the mass of the expanding bit, r is the maximum radius of the hole making device, G is the gravity of the expanding bit, ω is the angular speed of the drilling machine, ω is 2 pi · n, and n is the output rotating speed of the drilling machine.
Ideally, the critical rotation speed n of the expanding bit should satisfy:
and step three, increasing the water pressure of a pump station, increasing the torque of the drilling machine until the reaming bit is completely opened, then keeping the water pressure, and advancing the designed length to carry out hole making.
The invention has the beneficial effects that:
the invention integrates hydraulic drilling and mechanical hole making, adopts low-pressure water in the conventional drilling process to play roles of discharging powder and reducing dust and cooling a drill bit, continuously improves the water pressure during mechanical hole making, gradually opens the hole expanding drill bit under the action of the water pressure and the torque of the drilling machine to cut coal bodies to generate holes, and realizes the integration of drilling and hole making through the conversion of high-pressure and low-pressure pump pressures. The mechanical cave-making process is not greatly influenced by coal bed conditions and parameters, the coal yield and the anti-reflection pressure relief effect are relatively stable, and the mechanical cave-making process has the advantages of long cave-making depth, high cave-making efficiency and the like.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a structural diagram of the present invention in a drilling state.
FIG. 3 is a view showing the construction of the present invention in a state of forming a cavity.
Fig. 4 is a power head configuration diagram.
Detailed Description
In the figure: 1 is a drill rod, 2 is a hole making device, 3 is a drill bit, 21 is a hole making main body, 22 is a hole expanding drill bit, 23 is a snap spring, 24 is a power head, 25 is a spring, 26 is a push rod, 27 is a rotating shaft, 28 is an alloy cutting tooth, 241 is a water inlet hole, and 261 is a rubber body.
Referring to fig. 1, 2, 3 and 4, the invention relates to a mechanical hydraulic drilling and hole making integrated device, which comprises a drill rod 1, a hole making device 2 with one end connected with the drill rod 1, and a drill bit 3 connected with the other end of the hole making device 2, wherein the hole making device 2 comprises a hole making main body 21 with a cavity structure, a hole expanding drill bit 22 which is arranged on the hole making main body 21 through a rotating shaft and can rotate, a clamp spring 23, a power head 24, a spring 25 and a push rod 26 which are arranged inside the hole making main body 21, the clamp spring 23 is arranged in a clamping groove formed in the inner wall of the hole making main body 21, a step is arranged on the inner wall of the hole making main body 21 and is positioned behind the drill bit 22, the clamp spring 23 is fixedly arranged behind the step, the power head 24 is arranged in the cavity of the hole making main body 21 between the step and the clamp spring 23 in an axial moving manner, the push rod 26 is arranged at the front end of the power head 24, the spring 25 is sleeved outside the power head 24 and the push rod 26, the front end of the spring 25 abuts against the step, the rear end of the spring 25 is connected with the power head 24, the section of the push rod 26 is rectangular, the rear end of the push rod 26 is installed on the power head 24, the rubber body 261 is installed at the rear end of the push rod 26, in the initial state, the rear end of the push rod 26 abuts against the side face of the rear end of the reaming bit 22, and in the initial state, the spring 26 is in a natural state. The rear end of the power head 24 is a clamping groove structure which is convenient to be connected with the clamp spring 25 and allows internal water to flow through, a plurality of water inlet holes 241 are formed in the front end of the power head 14, and the water inlet holes 241 are evenly distributed in the front end of the power head 24 in a circumferential mode. The expanding bit 22 is a knife-arm-shaped structure, the front end of the expanding bit 22 is a conical rear end and is saw-shaped, the upper part of the rear end of the expanding bit 22 is an arc structure, the center of the arc coincides with the center of a rotating shaft hole on the expanding bit 22, two rows of alloy cutting teeth 28 which are vertically distributed are arranged on the expanding bit 22, and the center line of the alloy cutting teeth 28 is vertical to the advancing direction of the device.
The operation method of the mechanical hydraulic drilling and hole making integrated device is characterized in that a 'retreating' type hole making mode is adopted, namely, after a low-pressure water drill rod is adopted to construct a drill hole to a designed depth, the drill retreats to the designed hole making position, and then a 'forward pushing type' hole making mode is carried out, and the specific operation flow is as follows:
the method comprises the following steps: adopting a 'retreating type' to make a cave, namely adopting a low-pressure water to drill a hole to a designed depth;
step two: adopting low-pressure water to drill to the designed depth, and then retreating to the designed position according to the design parameters of the hole-making drill;
step three: stopping pushing when the hole is retreated to the position needing hole making, keeping the drilling tool rotating, and opening the hole expanding drill bit to make holes;
step four: after the primary hole making is finished, the expanding drill bit is withdrawn, the hole is normally retreated to the next hole making position, and the secondary hole making is carried out according to the third step, so that the circular operation is carried out;
step five: after the hole making is completed, the device is withdrawn, and the device is cleaned and maintained, so that the device is convenient to use next time.
And step three, a method of keeping the power head to rotate, increasing the water pressure of a pump station until the hole expanding drill bit is completely opened, then keeping the pressure, and advancing the designed length forward to carry out hole making can be adopted.
In the method, the power head 24 moves forwards along the axial direction under the action of water pressure, the push rod 26 moves forwards along with the power head 24 along the axial direction, the spring 25 is compressed in the process, then the expanding bit 22 is pushed to rotate around the rotating shaft 27, the expanding bit is enabled to rotate outwards, the water pressure is recovered after one-time hole making is completed, at the moment, the power head 24 moves backwards along the axial direction under the action of the elastic force of the spring 25, the push rod 26 moves backwards along with the power head 24 along the axial direction until the front end of the power head 24 abuts against the clamp spring 23, the power head 24 does not move any more, and in the process, the expanding bit is retracted.
Step three, when the high-low pressure water switching mode is adopted for reaming and making the holes, and when the hole is drilled, the reaming bit is not opened, and then the water pressure P inside the device should meet:
P≤F1/S，P1＝F1/S
wherein, F1Is the critical pressure of the deformation of the spring, and S is the effective cross-sectional area at the end face of the power head, namely:
wherein D is1Diameter of the power head main body, d1The diameter of the water inlet hole is adopted, n is the number of the water inlet holes, and the area of the part of the clamping groove is ignored;
in the hole-making state, in order to form the hole with the largest diameter, namely, the hole-expanding drill bit smoothly rotates 90 degrees under the action of the push rod, the upper end surface of the push rod is tangent to a construction circle where a fillet at the upper right of the hole-expanding drill bit is located. At the moment, the push rod moves along the axial direction along the stroke L and meets the following requirements:
wherein r is the radius of a fillet at the upper right of the reaming bit; h is the total width of the reaming bit;
according to the device structure, the stroke L of the push rod is the compression deformation of the spring, and the pressure F acting on the power head meets the following requirements:
F＝k·L
wherein, k is the spring elastic modulus, then the inside water pressure P of device should satisfy:
in summary, when the device is normally drilled, the internal water pressure is less than P1At a rotational speed of less than n0(ii) a When reaming and making holes, the water pressure is from P1Gradually increasing pressure to P2Or a rotational speed greater than n0And gradually opening the reaming bit until the reaming bit is 90 degrees, and completely opening the reaming bit to the maximum hole-making diameter.
And step three, a method for keeping the water pressure of the pump station, increasing the torque of the drilling machine, and expanding the reaming bit under the action of inertia force to perform hole making can be adopted.
When the drilling machine torque increasing mode is adopted for reaming and cave-making, in the normal drilling state, the centripetal force F generated by the rotation of the reaming bit0It should satisfy:
F0＝mrω2≤G
wherein m is the mass of the expanding bit, r is the maximum radius of the hole making device, G is the gravity of the expanding bit, ω is the angular speed of the drilling machine, ω is 2 pi · n, and n is the output rotating speed of the drilling machine.
Ideally, the critical rotation speed n of the expanding bit should satisfy:
and in the third step, a method of increasing the water pressure of a pump station, increasing the torque of the drilling machine until the reaming bit is completely opened, keeping the water pressure and advancing the designed length to carry out hole making can be adopted.
The invention relates to a mechanical hydraulic drilling and cave-making integrated device and an operation method, which integrate hydraulic drilling and mechanical cave-making into a whole, adopt low-pressure water in the conventional drilling process to play the roles of discharging powder and reducing dust and cooling a drill bit, continuously improve the water pressure during mechanical cave-making, gradually open the reaming drill bit under the action of the water pressure and the torque of a drilling machine to cut coal bodies to generate holes, and realize the integration of drilling and cave-making through the conversion of high-pressure and low-pressure pumps. The mechanical cave-making process is not greatly influenced by coal bed conditions and parameters, the coal yield and the anti-reflection pressure relief effect are relatively stable, and the mechanical cave-making process has the advantages of long cave-making depth, high cave-making efficiency and the like.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a mechanical type water conservancy is beaten and is bored cave integrated device which characterized in that: including drilling rod, the cave device of making that one end is connected with the drilling rod and the drill bit that is connected with the other end of cave device, the cave device of making include the cave main part of making of cavity structure, install rotatable reamer bit and setting at the inside jump ring, unit head, spring and the push rod of making the cave main part on making the cave main part through the rotation axis.
2. The mechanical hydraulic drilling and hole making integrated device as claimed in claim 1, wherein: the clamp spring is arranged in a clamping groove formed in the inner wall of the hole making main body, a step is arranged on the inner wall of the hole making main body and is positioned behind the expanding bit, the clamp spring is fixedly arranged behind the step, the power head can be axially movably arranged in a cavity of the hole making main body between the step and the clamp spring, a push rod is arranged at the front end of the power head, the spring is sleeved on the outer sides of the power head and the push rod, the front end of the spring abuts against the step, and the rear end of the spring is connected with the power head; the section of push rod be the rectangle, the rear end of push rod install on the power head, the rear end of push rod install the rubber body, initial position in the time, the rear end of push rod support and lean on the rear end side of reaming drill bit.
3. The mechanical hydraulic drilling and hole making integrated device as claimed in claim 2, wherein: the rear end of the power head is convenient for being connected with the clamp spring and is provided with a clamping groove structure through which internal water flows pass, the front end of the power head is provided with a plurality of water inlet holes, and the water inlet holes are uniformly distributed at the front end of the power head in a circumferential mode.
4. The mechanical hydraulic drilling and hole making integrated device as claimed in claim 2, wherein: the reaming bit be cutter arm column structure, the front end of reaming bit be the toper rear end for saw-shaped, reaming bit rear end top be the circular arc structure to the rotation axis hole center coincidence on circular arc center and the reaming bit, the reaming bit on install two rows of alloy cutting teeth that mutually perpendicular distributes, the alloy cutting teeth central line be perpendicular with the direction of advance of this device.
5. An operation method of a mechanical hydraulic drilling and hole making integrated device is characterized by comprising the following steps:
the method comprises the following steps: adopting a 'retreating type' to make a cave, namely adopting a low-pressure water to drill a hole to a designed depth;
step two: adopting low-pressure water to drill to the designed depth, and then retreating to the designed position according to the design parameters of the hole-making drill;
step three: stopping pushing when the hole is retreated to the position needing hole making, keeping the drilling tool rotating, and opening the hole expanding drill bit to make holes;
step four: after the primary hole making is finished, the expanding drill bit is withdrawn, the hole is normally retreated to the next hole making position, and the secondary hole making is carried out according to the third step, so that the circular operation is carried out;
step five: after the hole making is completed, the device is withdrawn, and the device is cleaned and maintained, so that the device is convenient to use next time.
6. The operation method of the mechanical hydraulic drilling and hole making integrated device according to claim 5, wherein: and step three, keeping the power head to rotate, increasing the water pressure of a pump station until the hole expanding drill bit is completely opened, then keeping the pressure, pushing the designed length forward to carry out hole making, recovering the water pressure after the hole making is completed for one time in the step four, withdrawing the hole expanding drill bit, normally retreating the drill bit to the next hole making position, switching the high pressure again, opening the hole expanding drill bit, and carrying out the second hole making according to the step three so as to carry out the circulating operation.
7. The operation method of the mechanical hydraulic drilling and hole making integrated device according to claim 6, wherein: when adopting high low pressure water switching mode reaming cave-making, when drilling the state, the reamer bit is not opened, then the inside water pressure P of device should satisfy:
P≤F1/S，P1＝F1/S
wherein, F1Is the critical pressure of the deformation of the spring, and S is the effective cross-sectional area at the end face of the power head, namely:
wherein D is1Diameter of the power head main body, d1The diameter of the water inlet hole is adopted, n is the number of the water inlet holes, and the area of the part of the clamping groove is ignored;
in the hole-making state, in order to form the hole with the largest diameter, namely, the hole-expanding drill bit smoothly rotates 90 degrees under the action of the push rod, the upper end surface of the push rod is tangent to a construction circle where a fillet at the upper right of the hole-expanding drill bit is located. At the moment, the push rod moves along the axial direction along the stroke L and meets the following requirements:
wherein r is the radius of a fillet at the upper right of the reaming bit; h is the total width of the reaming bit;
according to the device structure, the stroke L of the push rod is the compression deformation of the spring, and the pressure F acting on the power head meets the following requirements:
F＝k·L
wherein, k is the spring elastic modulus, then the inside water pressure P of device should satisfy:
in summary, when the device is normally drilled, the internal water pressure is less than P1At a rotational speed of less than n0(ii) a When reaming and making holes, the water pressure is from P1Gradually increasing pressure to P2Or a rotational speed greater than n0And gradually opening the reaming bit until the reaming bit is 90 degrees, and completely opening the reaming bit to the maximum hole-making diameter.
8. The operation method of the mechanical hydraulic drilling and hole making integrated device according to claim 5, wherein: and step three, maintaining the water pressure of the pump station, increasing the torque of the drilling machine, and expanding the reaming bit under the action of inertia force to perform hole making.
9. The operation method of the mechanical hydraulic drilling and hole making integrated device according to claim 8, wherein: when the drilling machine torque increasing mode is adopted for reaming and cave-making, in the normal drilling state, the centripetal force F generated by the rotation of the reaming bit0It should satisfy:
F0＝mrω2≤G
wherein m is the mass of the expanding bit, r is the maximum radius of the hole making device, G is the gravity of the expanding bit, ω is the angular speed of the drilling machine, ω is 2 pi · n, and n is the output rotating speed of the drilling machine.
Ideally, the critical rotation speed n of the expanding bit should satisfy:
10. the operation method of the mechanical hydraulic drilling and hole making integrated device according to claim 5, wherein: and step three, increasing the water pressure of a pump station, increasing the torque of the drilling machine until the reaming bit is completely opened, then keeping the water pressure, and advancing the designed length to carry out hole making.
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