CN115059398B - Jet rock breaking rotary spray head, hole drilling tool, continuous drilling system and industrial control method - Google Patents
Jet rock breaking rotary spray head, hole drilling tool, continuous drilling system and industrial control method Download PDFInfo
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- CN115059398B CN115059398B CN202210734255.5A CN202210734255A CN115059398B CN 115059398 B CN115059398 B CN 115059398B CN 202210734255 A CN202210734255 A CN 202210734255A CN 115059398 B CN115059398 B CN 115059398B
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- 238000005553 drilling Methods 0.000 title claims abstract description 93
- 239000011435 rock Substances 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007921 spray Substances 0.000 title claims description 47
- 230000007246 mechanism Effects 0.000 claims description 45
- 210000002445 nipple Anatomy 0.000 claims description 41
- 238000002347 injection Methods 0.000 claims description 26
- 239000007924 injection Substances 0.000 claims description 26
- 229910000831 Steel Inorganic materials 0.000 claims description 22
- 239000010959 steel Substances 0.000 claims description 22
- 239000007788 liquid Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 18
- 238000012806 monitoring device Methods 0.000 claims description 18
- 238000005259 measurement Methods 0.000 claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
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- 239000003245 coal Substances 0.000 abstract description 7
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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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
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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
- E21B47/00—Survey of boreholes or wells
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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
- E21B7/04—Directional drilling
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Abstract
The invention belongs to the technical field of coal exploitation and discloses a jet rock breaking rotary nozzle, a hole forming drilling tool, a continuous drilling system and an industrial control method.
Description
Technical Field
The invention belongs to the technical field of coal mining, and particularly relates to a jet rock breaking rotary nozzle, a hole forming drilling tool, a continuous drilling system and an industrial control method.
Background
The underground coal mine drilling is a main technical means for coal mining and various disaster prevention and control, and comprises a coal exploring hole, a water exploring hole, a gas extraction hole and the like, and the underground coal mine roadway drilling machine is main equipment for implementing various drilling. Because of the limitation of the space size of the roadway, the length of the drill rod is usually not more than 3m, generally 1m, 1.5m and 3m, namely, at most 3m is drilled or pulled back in the drilling process, the drilling and the pump stopping are needed, then the drill rod is added or removed, and the operation mode has the defects that: the labor intensity of the drilling site staff is high, and the safety construction is not facilitated; frequent pump stoppage is easy to cause in-hole accidents, most of in-hole accident reasons are that drilling fluid circulation is stopped, and especially accidents are more easy to occur under the condition of complex stratum conditions; the torque and the weight of a drill bit are provided by a roadway drilling machine when the existing drilling equipment drills, and the orifice drilling machine bears larger reaction force and has certain mechanical injury risk; the gas concentration overrun easily occurs when the drill rod hole is replaced in the construction process of the high gas hole; complex mechanical requirements such as drill rod replacement, torque supply, weight on bit and the like limit the intelligent development of the drilling machine. In conclusion, the existing drilling mechanism and equipment have the problems of large labor workload, high risk of holes and orifices in the drilling process, complex drilling machine, mechanical injury risk and the like.
Therefore, in view of the above-mentioned drawbacks, the present inventors have devised a downhole continuous drilling system and method for solving the technical problems inherent in the conventional drilling apparatus and method by combining the experience and results of related industries for a long period of time through intensive research and design.
Disclosure of Invention
In order to solve the problems, the invention provides a jet rock breaking rotary spray head, a hole forming drilling tool, a continuous drilling system and an industrial control method, which are used for solving the technical problems that the conventional underground coal mine drilling equipment is inconvenient to use and easy to cause accidents.
In order to solve the technical problems, the invention adopts the following technical scheme:
the jet rock breaking rotary spray head comprises a rotary spray head body, wherein the tail end of the rotary spray head body is connected with the head end of an executing mechanism through a rotary connecting assembly, and the tail end of the executing mechanism is connected with a directional control mechanism; the rotary spray head is characterized in that a first diversion cavity is arranged in the rotary spray head body, a rock breaking spray hole coaxially communicated with the first diversion cavity is formed in the head end of the rotary spray head body, a rotary spray hole communicated with the first diversion cavity is formed in the side wall of the rotary spray head body, and the rotary spray head body can rotate under the pushing of high-pressure spray liquid flowing through the actuating mechanism and the directional control mechanism.
The invention also has the following technical characteristics:
specifically, the directional control mechanism comprises a first outer shell, an electromagnet cylinder and a central rod, wherein the first outer shell is coaxially sleeved from outside to inside along the radial direction, the central rod is axially provided with a second diversion cavity, a plurality of protruding parts are arranged at the head end of the central rod along the circumferential direction at intervals, a plurality of central rod permanent magnets are distributed on the outer wall of the central rod at equal intervals, and a plurality of electromagnets are distributed on the inner wall of the electromagnet cylinder at equal intervals;
the actuating mechanism comprises a second outer shell body axially provided with a third flow guide cavity, the tail end of the second outer shell body is in plug fit with the head end of the first outer shell body, the head end of the second outer shell body is connected with the rotary nozzle body, and the first flow guide cavity, the second flow guide cavity and the third flow guide cavity are coaxially communicated;
a plurality of mounting cavities are axially distributed on the side wall of the second outer shell, a spring is arranged at the bottom of each mounting cavity, an execution rod capable of moving in each mounting cavity is connected to the spring, a water passing hole is further formed in each execution rod, and the tail end of each execution rod penetrates out of each mounting cavity and is abutted to each protruding part;
the side wall of the second shell is also provided with a directional jet hole which is communicated with the mounting cavity and the third diversion cavity;
when the central rod rotates under the electromagnetic action between the central rod permanent magnet and the electromagnet, the actuating rod can axially move in the mounting cavity under the pushing of the central rod, so that the water passing hole is communicated with or disconnected from the directional injection hole.
Furthermore, the number of the installation cavities is 3, the installation cavities are distributed at equal intervals along the outer wall of the second outer shell, and the number of the center rod permanent magnets and the number of the electromagnets are 6.
Further, the rotary connecting component is a bearing.
The invention also discloses a hole drilling tool, which comprises the jet rock breaking rotary nozzle, a control nipple and a measuring nipple, wherein the control nipple and the measuring nipple are sequentially arranged at the rear end of the jet rock breaking rotary nozzle;
the control nipple comprises a control nipple outer tube provided with a first core tube, a control assembly sleeved in the control nipple outer tube, and a control communication cable embedded in the first control nipple outer tube;
the measuring nipple comprises a measuring nipple outer tube provided with a second core tube, a measuring assembly sleeved in the measuring nipple outer tube, and a measuring communication cable embedded in the measuring nipple outer tube;
the first outer shell, the control nipple outer tube and the measurement nipple outer tube are sequentially communicated, and the first core tube, the second core tube and the second diversion cavity are communicated to form a jet liquid flow channel; the control communication cable, the measurement communication cable and the electromagnetic communication cable embedded in the outer wall of the electromagnet cylinder are sequentially communicated to form a power supply communication channel.
The invention also discloses a continuous drilling system, which comprises the hole drilling tool, wherein the tail end of the hole drilling tool is connected with a cable hollow steel cable, and the cable hollow steel cable is connected with a wire arranging device arranged on a cable hollow steel cable storage cylinder through a cable hollow steel cable conveying device;
the hollow cable is driven by the hollow cable conveying device to axially move in the drill hole along the drill hole, the tail end of the hollow cable is connected with a high-pressure pump, and the high-pressure pump provides jet liquid for a hole drilling tool communicated with the head end of the hollow cable through the hollow cable.
Furthermore, the hollow cable comprises an inner tube with a central through hole and an outer tube coaxially sleeved outside the inner tube, an annular installation space is formed between the inner tube and the outer tube, a pressure-bearing protection layer and a steel wire layer are sequentially arranged in the annular installation space from inside to outside along the radial direction, and a measurement control circuit is arranged in the pressure-bearing protection layer.
Still further, hollow cable wire conveyor of cable and hollow cable wire storage section of thick bamboo below still are provided with continuous drilling system delivery platform.
Still further, still be provided with monitoring device on the continuous drilling system conveying platform, monitoring device with measure control line connection setting.
The invention also discloses an industrial control method of the continuous drilling system, which is realized by the continuous drilling system and comprises the following steps:
presetting drilling track parameters or stratum parameters, and inputting the preset parameters into a monitoring device; the monitoring device transmits preset parameters to the control pup joint through a measurement control circuit, the control pup joint converts the received control instructions into electric signal instructions according to the received setting parameters, then the magnetic properties of one or more electromagnets are adjusted to push the central rod to rotate by a preset angle, and then one or more execution rods are pushed to axially move to open one or more directional injection holes, so that lateral force is applied to the jet rock breaking rotary nozzle, the jet rock breaking rotary nozzle drills according to preset drilling track parameters or stratum setting parameters, directional injection is finally realized, and directional rock breaking pore forming is completed; and in the drilling process, the control pup joint also transmits the acquired attitude drilling track of the current hole drilling tool to the monitoring device.
Compared with the prior art, the invention has the beneficial effects that:
(1) The jet rock breaking rotary spray head controls the opening of one or more directional spray holes through the structural design of the actuating mechanism and the directional control mechanism, particularly through the electromagnetic action between the permanent magnet of the central rod and the electromagnet, thereby controlling the jet direction and the size of the directional spray, applying the weight on drill through the hollow cable, and realizing high-efficiency rock breaking by adopting the jet rock breaking rotary spray head under the condition of certain flow.
(2) The continuous drilling system adopts the flexible cable hollow steel cable, so that frequent drilling and pump stopping in the drilling process in the re-drilling process are not needed, and then the drill rod is added or removed, thereby realizing continuous drilling, reducing the labor intensity of workers, reducing the risk in the hole and being convenient for track adjustment according to Kong Naqing conditions.
(3) The continuous drilling system adopts water jet drilling, the drilling machine does not provide torque, has high safety and simple drilling tool assembly, and can implement automatic and intelligent drilling.
(4) The method adopts the cable-passing hollow steel cable conveying device to provide the feeding force by means of the cable-passing hollow steel cable, finally realizes the jet direction and size adjustment of directional jet by adjusting the magnetism of one or more electromagnets, has simple and convenient operation and high reliability, and has high popularization and use values.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a cross-sectional view of a hole-forming drill of the present invention;
FIG. 2 is a schematic view of the overall structure of the inventive boring tool;
FIG. 3 is a schematic diagram of the continuous drilling system of the present invention;
FIG. 4 is a cross-sectional view of the directional control mechanism of the present invention;
FIG. 5 is a cross-sectional view of an actuator of the present invention;
FIG. 6 is a schematic view of the cable hollow rope structure of the present invention;
the reference numerals in the figures are as follows:
the device comprises a 1-rotary spray head body, a 2-actuating mechanism, a 3-directional control mechanism, a 4-control nipple, a 5-measuring nipple, a 6-high pressure pump, a 7-cable hollow steel cable, an 8-cable hollow steel cable conveying device, a 9-cable hollow steel cable storage cylinder, a 10-continuous drilling system conveying platform, a 11-first diversion cavity and a 12-monitoring device; 21-a second outer housing; 31-a first outer housing, 32-an electromagnet cylinder, 33-a central rod; 41-control nipple outer tube; 51-measuring a short section outer tube; 71-inner tube, 72-outer tube, 73-pressure-bearing protective layer, 74-steel wire layer and 75-measurement control circuit; 101-rock breaking spray holes, 102-rotary spray holes, 211-third diversion cavities, 212-installation cavities and 213-directional spray holes; 321-an electromagnet, 331-a second diversion cavity, 332-a boss, 333-a central rod permanent magnet; 2121-spring, 2122-actuating lever.
The details of the invention are explained in further detail below with reference to the drawings and the detailed description.
Detailed Description
The following specific embodiments of the present invention are provided, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent changes made on the basis of the technical solutions of the present application fall within the protection scope of the present invention.
In the present invention, unless otherwise indicated, terms such as "upper, lower, bottom, top" and "inner, outer" are used to refer generally to the definition of the drawing figures and to the definition of the drawing figures.
Example 1
According to the technical scheme, as shown in fig. 1, the embodiment discloses a jet rock breaking rotary nozzle, which comprises a rotary nozzle body 1, wherein the tail end of the rotary nozzle body 1 is connected with the head end of an executing mechanism 2 through a rotary connecting component, and the tail end of the executing mechanism 2 is connected with a directional control mechanism 3; the rotary spray head body 1 is internally provided with a first diversion cavity 11, the head end of the rotary spray head body 1 is provided with a rock breaking spray hole 101 coaxially communicated with the first diversion cavity 11, the rock breaking spray hole 101 is mainly used for breaking rock at the front end of the rotary spray head body 1 in a drilling hole, the side wall of the rotary spray head body 1 is provided with a rotary spray hole 102 communicated with the first diversion cavity 11, the rotary spray head body 1 can rotate under the pushing of high-pressure spray liquid flowing through the inside of the actuating mechanism 2 and the directional control mechanism 3, and in the embodiment, the actuating mechanism 2 and the directional control mechanism 3 are both provided with liquid flow channels coaxially communicated with the first diversion cavity 11; the recoil force generated by the high-pressure liquid flow from the rotary nozzle 102 due to the eccentricity can drive the rotary nozzle body 1 to rotate.
Specifically, the tail end of the rotary spray head body 1 is connected with the head end of the executing mechanism 2 through a rotary connecting assembly, and can rotate relative to the executing mechanism 2; the tail end of the executing mechanism 2 is connected with the directional control mechanism 3; the rotary spray head body 1 can rotate and advance under the pushing of high-pressure spray liquid flowing through the actuating mechanism 2 and the directional control mechanism 3. Namely, the rotary sprayer body 1 can advance and turn in the drill hole by breaking rock under the action of the actuating mechanism 2 and the directional control mechanism 3. The magnetic force speed reducing device can be further arranged on the jet rock breaking nozzle to reduce the speed so as to control the rotation speed of the nozzle and ensure the impact force of breaking the rock of the nozzle.
As a preferable scheme of the present embodiment, as shown in fig. 4, the directional control mechanism 3 includes a first outer housing 31 coaxially sleeved from outside to inside in the radial direction, an electromagnet cylinder 32, and a central rod 33 axially provided with a second flow guiding cavity 331, wherein a plurality of protruding portions 332 are circumferentially arranged at intervals at the head end of the central rod 33, a plurality of central rod permanent magnets 333 are uniformly arranged on the outer wall of the central rod 33, and a plurality of electromagnets 321 are uniformly arranged on the inner wall of the electromagnet cylinder 32; the number of the central rod permanent magnets 333 is the same as that of the electromagnets 321, and the central rod permanent magnets are symmetrically arranged but are not connected; the central rod 33 is rotatable within the electromagnet cylinder 32; the electromagnet 321 is connected with a power supply line, after the power supply is performed, the electromagnet 321 generates a magnetic field, and the magnetism of the electromagnet 321 can be controlled singly or in combination to enable the center rod 33 to rotate at a preset angle, so that the protruding portion 332 arranged at the end of the center rod is driven to rotate in the circumferential direction, and the protruding portion 332 is enabled to rotate to a fixed angle.
As shown in fig. 5, the actuator 2 includes a second casing 21 axially provided with a third diversion cavity 211, the tail end of the second casing 21 is in plug-in fit with the head end of the first casing 31, the head end of the second casing 21 is connected with the rotary nozzle body, in this embodiment, the head end of the second casing 21 is connected with the jet rock breaking rotary nozzle by means of a bearing, the first diversion cavity 11, the second diversion cavity 331 and the third diversion cavity 211 are coaxially communicated to form a runner of injection liquid in the jet rock breaking rotary nozzle, and the injection liquid can be sprayed out from the rotary nozzle hole through the first diversion cavity 11, the second diversion cavity 331 and the third diversion cavity 211;
a plurality of mounting cavities 212 are axially distributed on the side wall of the second outer shell 21, springs 2121 are arranged at the bottoms of the mounting cavities 212, an execution rod 2122 capable of moving in the mounting cavities is connected to the springs 2121, water passing holes are further formed in the execution rod 2122, and the tail ends of the execution rod 2122 penetrate out of the mounting cavities 212 and are abutted against the protruding portions 332;
the side wall of the second outer shell 21 is also provided with a directional injection hole 213, wherein the directional injection hole 213 forms an acute angle of 30-80 degrees with the horizontal direction, i.e. the directional injection hole 213 can inject water flow to the rear of the running direction of the jet rock breaking rotary nozzle, and the directional injection hole 213 is communicated with the installation cavity 212 and the third flow guiding cavity 211;
when the center rod 33 rotates by electromagnetic action between the center rod permanent magnet 333 and the electromagnet 321, the actuating rod 2122 may be axially moved within the mounting chamber 212 by the pushing of the center rod 33 so that the water passing hole communicates with or is disconnected from the directional injection hole 213.
In this embodiment, the second diversion cavity 331 and the third diversion cavity 211 are communicated to form the liquid flow channel.
As a preferred solution of the present embodiment, the number of the installation cavities 212 is 3, and the number of the central rod permanent magnets 333 and the number of the electromagnets 321 are all 6, which are distributed at equal intervals along the outer wall of the second casing 21, in this embodiment, each electromagnet 321 is connected with an independent power supply circuit, so that the magnetic control of one or more electromagnets 321 can be implemented by controlling the power supply circuit, so as to push the central rod 33 to rotate by a predetermined angle, and then push one or more actuating rods 2122 to axially move by the central rod 33, so as to open one or more directional injection holes 213.
As a preferred solution of this embodiment, the rotating connection assembly is a bearing.
The use process of this embodiment is as follows:
after the electromagnet 321 is powered by the power supply circuit, an electromagnetic action is generated between the central rod permanent magnet 333 and the electromagnet 321, the central rod 33 rotates, the protruding portion 332 applies thrust to the actuating rod 2122 through surface matching with the actuating rod 2122, so that the spring 2121 is compressed, the actuating rod 2122 moves in the installation cavity 212 towards the direction close to the jet rock breaking rotary nozzle, the water passing hole can be communicated with the directional injection hole 213, the magnetic force between the electromagnet 321 and the central rod permanent magnet 333 can be controlled by controlling the current, the moving distance of the actuating rod 2122 in the installation cavity 212 is further controlled, the overlapping area of the water passing hole and the directional injection hole 213 is adjusted, and finally the flow of injection liquid is adjusted.
After the power supply circuit is powered off, the magnetism of the electromagnet 321 changes, the central rod permanent magnet 333 rotates, at this time, the actuating rod 2122 moves away from the jet rock breaking rotary nozzle under the action of the spring 2121, the water passing hole can be not communicated with the directional jet hole 213, and the jet liquid does not flow out from the primary directional jet hole 213.
Example 2
As shown in fig. 2, the embodiment also discloses a hole drilling tool, which further comprises a control nipple 4 and a measuring nipple 5 which are sequentially arranged at the rear end of the jet rock breaking rotary nozzle;
the control nipple 4 comprises a control nipple outer tube 41 provided with a first core tube, a control assembly sleeved in the control nipple outer tube 41, and a control communication cable embedded in the first control nipple outer tube 41;
the measuring nipple 5 comprises a measuring nipple outer tube 51 provided with a second core tube, a measuring assembly sleeved in the measuring nipple outer tube 51, and a measuring communication cable embedded in the measuring nipple outer tube 51;
the first outer casing 31, the control nipple outer pipe 41 and the measurement nipple outer pipe 51 are sequentially arranged in a penetrating manner, and the first core pipe, the second core pipe and the second diversion cavity 331 are communicated to form a jet liquid flow channel; the control communication cable, the measurement communication cable and the electromagnetic communication cable embedded in the outer wall of the electromagnet cylinder are sequentially communicated to form a power supply communication channel.
Example 3
As shown in fig. 3, the present embodiment provides a continuous drilling system, which comprises the hole drilling tool disclosed in embodiment 2, wherein the tail end of the hole drilling tool is connected with a hollow cable 7, and the hollow cable 7 is connected with a wire arranging device arranged on a hollow cable storage cylinder 9 through a hollow cable conveying device 8;
the hollow cable 7 is driven by the hollow cable conveying device 8 to move in the drill hole, the tail end of the hollow cable 7 is connected with a high-pressure pump 6, the high-pressure pump 6 supplies injection liquid to a hole forming drilling tool communicated with the head end of the hollow cable 7 through the hollow cable 7, and the high-pressure pump 6 conveys the high-pressure injection liquid into the hollow cable 7 and the hole forming drilling tool through a high-pressure rotary joint.
As a preferable scheme of this embodiment, as shown in fig. 6, the hollow cable 7 for cable comprises an inner tube 71 having a central through hole, and an outer tube 72 coaxially sleeved outside the inner tube 71, an annular space is formed between the inner tube 71 and the outer tube 72, a pressure-bearing protection layer 73 and a steel wire layer 74 are sequentially arranged in the annular space from inside to outside in the radial direction, the pressure-bearing protective layer 73 is internally provided with a measurement control circuit 75, and the overview hollow steel cable 7 is flexible and can also be wound on an overview hollow steel cable storage cylinder, has a bending radius of 2 m-3.5 m and has certain rigidity and can be used for transmitting axial force in the holes.
As a preferred scheme of the embodiment, a continuous drilling system conveying platform 10 is further arranged below the cable hollow steel cable conveying device 8 and the cable hollow steel cable storage cylinder 9, and the continuous drilling system conveying platform 10 is convenient for conveying continuous drilling system components.
In this embodiment, preferably, the cable hollow steel cable conveying device includes a conveying box, in which two conveying mechanisms with identical structures and mirror symmetry are arranged, and the two conveying mechanisms are used for conveying the cable hollow steel cable;
the conveying mechanism comprises a driver, a driving wheel, a driven wheel and a conveying belt connected with the driving wheel and the driven wheel, wherein the driver is used for driving a driving shaft of the driving wheel to rotate so as to drive a driven shaft of the driven wheel to rotate;
the driving shaft is connected with the driven shaft through a supporting plate, a supporting piece is arranged on the supporting plate, and the supporting piece is used for supporting the conveying belt. Other devices that can be used for cable delivery can be used as long as horizontal transport of the cable is achieved.
As a preferred solution of this embodiment, the continuous drilling system conveying platform 10 is further provided with a monitoring device 12, where the monitoring device 12 is connected to the measurement control circuit, for example, the monitoring device 12 may be connected to the measurement control circuit through a circuit rotary connector, and the monitoring device 12 is used for monitoring and controlling the continuous drilling system in real time, obtaining the perforation track and formation information, and controlling the hole drilling tool to advance along the set track or the preset formation.
In the use process of the embodiment, the conveying platform 10 of the continuous drilling system moves to a preset position in a roadway to complete the assembly of the system, the rotary sprayer body 1 is connected with the cable-passing hollow steel cable 7 through the actuating mechanism 2 and the directional control mechanism 3, high-pressure injection liquid enters the rotary sprayer body 1 through the cable-passing hollow steel cable 7, the directional control mechanism 3 and the actuating mechanism 2, the rotary sprayer body 1 is driven by the high-pressure injection liquid to rotate and advance in a drilling hole, and in the drilling process, the flow adjustment of the injection liquid is realized through the cooperation of the directional control mechanism 3 and the actuating mechanism 2 disclosed in the embodiment 1, and finally the directional drilling hole is realized.
Example 4
The embodiment discloses an industrial control method of a continuous drilling system, which is realized by the continuous drilling system disclosed in the embodiment 3 and comprises the following steps:
presetting drilling track parameters or stratum setting parameters, and inputting the preset parameters into a monitoring device;
the monitoring device transmits preset parameters to the control pup joint through a measurement control circuit, the control pup joint converts the received control instructions into electric signal instructions according to the received setting parameters, then the magnetic properties of one or more electromagnets are adjusted to push the central rod to rotate by a preset angle, and then one or more execution rods are pushed to axially move to open one or more directional injection holes, so that lateral force is applied to the jet rock breaking rotary nozzle, the jet rock breaking rotary nozzle drills according to preset drilling track parameters or stratum setting parameters, directional injection is finally realized, and directional rock breaking pore forming is completed; and in the drilling process, the control pup joint also transmits the acquired attitude drilling track of the current hole drilling tool to the monitoring device.
When the jet flow rock breaking rotary spray head is in a forward state in a drill hole, small-flow and low-pressure fluid is adopted for construction, when the jet flow rock breaking rotary spray head is in a rock breaking state in the drill hole, large-flow and high-pressure fluid is adopted for construction, the flow is 180-300L/min, the pressure is 15-50 MPa, and grinding materials can be added into the fluid to improve the rock breaking efficiency.
In the above description, unless explicitly stated and limited otherwise, the terms "disposed," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; either direct or indirect connection, etc. The specific meaning of the above terms in the present technical solution can be understood by those skilled in the art according to specific circumstances.
The individual technical features described in the above-described embodiments may be combined in any suitable manner without contradiction, as long as they do not deviate from the idea of the invention and should also be regarded as the disclosure of the invention.
Claims (9)
1. The jet rock breaking rotary spray head comprises a rotary spray head body (1) and is characterized in that the tail end of the rotary spray head body (1) is connected with the head end of an executing mechanism (2) through a rotary connecting assembly, and the tail end of the executing mechanism (2) is connected with a directional control mechanism (3); a first diversion cavity (11) is arranged in the rotary spray head body (1), a rock breaking spray hole (101) which is coaxially communicated with the first diversion cavity (11) is formed in the head end of the rotary spray head body (1), a rotary spray hole (102) which is communicated with the first diversion cavity (11) is formed in the side wall of the rotary spray head body (1), and the rotary spray head body (1) can rotate under the pushing of high-pressure spray liquid flowing through the actuating mechanism (2) and the inside of the directional control mechanism (3);
the directional control mechanism (3) comprises a first outer shell (31), an electromagnet cylinder (32) and a central rod (33) with a second diversion cavity (331) arranged in an axial direction, wherein the first outer shell is coaxially sleeved from outside to inside along the radial direction, a plurality of protruding parts (332) are arranged at intervals along the circumferential direction at the head end of the central rod (33), a plurality of central rod permanent magnets (333) are uniformly distributed on the outer wall of the central rod (33), and a plurality of electromagnets (321) are uniformly distributed on the inner wall of the electromagnet cylinder (32);
the actuating mechanism (2) comprises a second outer shell (21) axially provided with a third diversion cavity (211), the tail end of the second outer shell (21) is in plug-in fit with the head end of the first outer shell (31), the head end of the second outer shell (21) is connected with the rotary spray head body (1), and the first diversion cavity (11), the second diversion cavity (331) and the third diversion cavity (211) are coaxially communicated;
a plurality of mounting cavities (212) are axially distributed on the side wall of the second outer shell (21), springs (2121) are arranged at the bottoms of the mounting cavities (212), execution rods (2122) capable of moving in the mounting cavities are connected to the springs (2121), water passing holes are further formed in the execution rods (2122), and the tail ends of the execution rods (2122) penetrate out of the mounting cavities (212) and are abutted to the protruding portions (332);
the side wall of the second shell body (21) is also provided with a directional injection hole (213), and the directional injection hole (213) is communicated with the mounting cavity (212) and the third flow guiding cavity (211);
when the central rod (33) rotates under the electromagnetic action between the central rod permanent magnet (333) and the electromagnet (321), the actuating rod (2122) can axially move in the mounting cavity (212) under the pushing of the central rod (33) so that the water passing hole is communicated with or disconnected from the directional injection hole (213).
2. The jet rock breaking rotary nozzle according to claim 1, wherein the number of the installation cavities (212) is 3, and the installation cavities are distributed at equal intervals along the outer wall of the second outer shell (21), and the number of the central rod permanent magnets (333) and the number of the electromagnets (321) are 6.
3. The jet rock breaking rotary sprayer of claim 1, wherein the rotary connection assembly is a bearing.
4. A hole forming drilling tool, characterized by comprising the jet rock breaking rotary nozzle according to any one of claims 1 to 3, and further comprising a measuring nipple (5) and a control nipple (4) which are sequentially arranged at the rear end of the jet rock breaking rotary nozzle;
the control nipple (4) comprises a control nipple outer tube (41) provided with a first core tube, a control assembly sleeved in the control nipple outer tube (41) and a control communication cable embedded in the control nipple outer tube (41);
the measuring nipple (5) comprises a measuring nipple outer tube (51) provided with a second core tube, a measuring assembly sleeved in the measuring nipple outer tube (51) and a measuring communication cable embedded in the measuring nipple outer tube (51);
the first outer shell (31), the control nipple outer tube (41) and the measurement nipple outer tube (51) are sequentially communicated, and the first core tube, the second core tube and the second diversion cavity (331) are communicated to form a jet liquid flow channel; the control communication cable, the measurement communication cable and the electromagnetic communication cable embedded in the outer wall of the electromagnet cylinder are sequentially communicated to form a power supply communication channel.
5. A continuous drilling system, which is characterized by comprising the pore-forming drilling tool as claimed in claim 4, wherein the tail end of the pore-forming drilling tool is connected with a hollow cable (7), and the hollow cable (7) is connected with a wire arranging device arranged on a hollow cable storage cylinder (9) through a hollow cable conveying device (8);
the hollow cable (7) is driven by the hollow cable conveying device (8) to move axially along the drill hole in the drill hole, the tail end of the hollow cable (7) is connected with a high-pressure pump (6), and the high-pressure pump (6) provides jet liquid for a hole drilling tool communicated with the head end of the hollow cable (7) through the hollow cable (7).
6. Continuous drilling system according to claim 5, characterized in that the hollow cable (7) comprises an inner tube (71) with a central through hole and an outer tube (72) coaxially sleeved outside the inner tube (71), an annular arrangement space is formed between the inner tube (71) and the outer tube (72), a pressure-bearing protection layer (73) and a steel wire layer (74) are sequentially arranged in the annular arrangement space from inside to outside in the radial direction, and a measurement control circuit (75) is arranged in the pressure-bearing protection layer (73).
7. Continuous drilling system according to claim 6, characterized in that a continuous drilling system conveying platform (10) is also provided below the cable hollow wire rope conveying device (8) and the cable hollow wire rope storage drum (9).
8. Continuous drilling system according to claim 7, characterized in that the continuous drilling system transport platform (10) is further provided with a monitoring device (12), which monitoring device (12) is arranged in connection with the measurement control line (75).
9. A method of controlling a continuous drilling system according to any one of claims 5 to 8, the method comprising:
presetting drilling track parameters or stratum setting parameters, and inputting the preset parameters into a monitoring device;
the monitoring device transmits preset parameters to the control pup joint through a measurement control circuit, the control pup joint converts the received control instructions into electric signal instructions according to the received setting parameters, then the magnetic properties of one or more electromagnets are adjusted to push the central rod to rotate by a preset angle, and then one or more execution rods are pushed to axially move to open one or more directional injection holes, so that lateral force is applied to the jet rock breaking rotary nozzle, the jet rock breaking rotary nozzle drills according to preset drilling track parameters or stratum setting parameters, directional injection is finally realized, and directional rock breaking pore forming is completed; and in the drilling process, the control pup joint also transmits the acquired attitude drilling track of the current hole drilling tool to the monitoring device.
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| CN202210734255.5A CN115059398B (en) | 2022-06-27 | 2022-06-27 | Jet rock breaking rotary spray head, hole drilling tool, continuous drilling system and industrial control method |
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| CN202210734255.5A CN115059398B (en) | 2022-06-27 | 2022-06-27 | Jet rock breaking rotary spray head, hole drilling tool, continuous drilling system and industrial control method |
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