CN114763743A - Device and method for mounting deep hole micro-seismic probe under coal mine - Google Patents
Device and method for mounting deep hole micro-seismic probe under coal mine Download PDFInfo
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- CN114763743A CN114763743A CN202210532581.8A CN202210532581A CN114763743A CN 114763743 A CN114763743 A CN 114763743A CN 202210532581 A CN202210532581 A CN 202210532581A CN 114763743 A CN114763743 A CN 114763743A
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
- E21B47/01—Devices for supporting measuring instruments on drill bits, pipes, rods or wirelines; Protecting measuring instruments in boreholes against heat, shock, pressure or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/10—Sealing or packing boreholes or wells in the borehole
- E21B33/13—Methods or devices for cementing, for plugging holes, crevices, or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
The application relates to the technical field of micro-seismic probe installation, and provides a device and a method for installing a deep-hole micro-seismic probe in a coal mine. The coal mine underground deep hole micro-seismic probe mounting device comprises a micro-seismic probe, a push rod, at least two flexible hole sealing pieces and an exhaust assembly, wherein the two flexible hole sealing pieces are connected with one end of the push rod; the micro-seismic probe is fixedly arranged on the push rod and is positioned between the two flexible hole sealing pieces; one end of the exhaust assembly is communicated with the space between the two flexible hole sealing pieces, and the other end of the exhaust assembly is communicated with the outside. According to this application embodiment's colliery deep hole microseism probe installation device in pit plays the fixed action to the microseism probe through push rod and two flexible hole sealing pieces, has changed the microseism probe through the interim fixed mode with the contact of drilling pore wall, has improved the installation accuracy of deep hole microseism probe, prevents that the microseism probe from taking place to rock the aversion before the cement thick liquid solidifies, has avoided the microseism probe to produce and has removed, has improved the geological conditions application scope of microseism probe.
Description
Technical Field
The application relates to the technical field of micro-seismic probe installation, in particular to a device and a method for installing a deep-hole micro-seismic probe in a coal mine.
Background
The microseismic monitoring method is characterized in that a microseismic network is adopted for on-site real-time monitoring, a microseismic event is determined by providing the position and the occurrence time of a seismic source, and the released energy is calculated; and then the intensity and frequency of the microseismic activity are counted, the potential mine dynamic disaster activity law is judged by combining the distribution position of the microseismic event, and risk evaluation and early warning are realized by identifying the mine dynamic disaster activity law. The precision of microseismic location depends mainly on the number of probes and the spatial arrangement. The more the probes are, the higher the three-dimensional degree between the probes in the three-dimensional direction, and the higher the positioning accuracy is. Because the geological formation process of underground coal has the characteristic of horizontal sedimentation, an underground roadway system arranged along a coal seam has the same horizontal plane distribution characteristic. Meanwhile, because the monitoring probe of the microseismic monitoring system is only arranged in a roadway of an underground working surface, when the dip angle of the coal seam is not large or the arrangement range is small, the height difference between the monitoring stations is difficult to be pulled, and the Z value positioning error of the seismic source is larger.
The main technical scheme for solving the problem of large error of a micro-seismic positioning horizontal seismic source is to add a vertical micro-seismic probe on the basis of the existing horizontal monitoring station network. After the probe is fed into the hole, cement slurry needs to be injected into the hole to fix the probe. In order to ensure that the spatial position of the probe meets the design requirements, temporary fixation is required before cement slurry in the hole is solidified. In the related art, the temporary fixation is generally performed by adding a fluke on the probe and using the friction force between the fluke and the wall of the borehole. The effect of this fixing method is largely limited by the geological conditions of the borehole: when the drilling surrounding rock is too hard to cause the hole wall to be smooth or the drilling surrounding rock is too broken and unstable, the probe per se generates position dislocation in the hole in the cement slurry solidification process, and the uncontrollable movement of the probe in the temporary solidification process influences the positioning accuracy of microseismic signals to a great extent.
Therefore, how to prevent the probe from moving and dislocating before the cement slurry is solidified is a problem to be solved in the industry.
Disclosure of Invention
The present application is directed to solving at least one of the technical problems occurring in the related art. Therefore, the application provides a colliery deep hole microseism probe installation device in pit, play the fixed action to the microseism probe through propelling movement pole and two flexible hole sealing pieces, changed the microseism probe through the temporary fixation mode with the contact of drilling pore wall, the problem that temporary fixation effect is subject to drilling country rock geological conditions has been solved, deep hole microseism probe installation accuracy has been improved, prevent that the microseism probe from taking place to rock the aversion before the cement thick liquid solidifies, avoided the microseism probe to receive the geological conditions influence and produce the position problem of removal, the geological conditions application scope of microseism probe has been improved.
The application also provides an installation method of the underground coal mine deep hole micro-seismic probe.
The coal mine underground deep hole micro-seismic probe installation device comprises a micro-seismic probe, a push rod, at least two flexible hole sealing pieces and an exhaust assembly;
the two flexible hole sealing pieces are connected with one end of the pushing rod;
the microseismic probe is fixedly arranged on the push rod and is positioned between the two flexible hole sealing pieces;
One end of the exhaust assembly is communicated with the space between the two flexible hole sealing pieces, and the other end of the exhaust assembly is communicated with the outside.
According to this application embodiment's colliery is deep hole microseism probe installation device in pit, send into the drilling with the microseism probe through the propelling movement pole in, and play the fixed action to the microseism probe through propelling movement pole and two flexible hole sealing pieces, the temporary fixation mode of microseism probe through with the contact of drilling pore wall has been changed, the problem that temporary fixation effect is subject to drilling country rock geological conditions has been solved, deep hole microseism probe installation accuracy has been improved, prevent that the microseism probe from taking place to rock the aversion before the cement thick liquid solidifies, avoided the microseism probe to receive the geological conditions influence and produce the position problem of removal, the geological conditions application scope of microseism probe has been improved.
According to one embodiment of the application, the coal mine underground deep hole micro-seismic probe mounting device further comprises a drill rod, one end of the drill rod is connected with the other end of the push rod, and the other end of the drill rod is connected with a drilling machine.
According to one embodiment of the application, the other end of propelling movement pole is fixed and is provided with the reducing joint, the reducing joint with the connection can be dismantled to the drilling rod.
According to an embodiment of the application, the coal mine underground deep hole micro-seismic probe mounting device further comprises a grouting assembly, the grouting assembly is communicated with the space between the two flexible hole sealing pieces, and the grouting assembly is used for conveying cement grout to the space between the two flexible hole sealing pieces.
According to one embodiment of the application, the grouting assembly is respectively communicated with the two flexible seals, and the grouting assembly is used for conveying cement slurry to the two flexible seals.
According to an embodiment of the application, the slip casting subassembly includes grouting pump, slip casting pipeline and blast valve, the grouting pump with the slip casting pipe connection, the slip casting pipeline respectively with two flexible hole sealing piece intercommunication, the blast valve is installed two between the flexible hole sealing piece, the blast valve with the slip casting pipe connection.
According to an embodiment of the application, the exhaust subassembly includes at least one blast pipe, one end of blast pipe is located two between the flexible hole sealing piece, the other end of blast pipe communicates with the external world.
According to an embodiment of the application, the part of the exhaust pipe between the two flexible hole sealing pieces is sequentially provided with a plurality of exhaust holes along the length direction.
According to an embodiment of the application, the coal mine underground deep hole micro-seismic probe mounting device further comprises a first gas conveying assembly, the first gas conveying assembly is respectively connected with the two flexible hole sealing pieces, and the first gas conveying assembly is used for conveying gas to the flexible hole sealing pieces.
According to the embodiment of the second aspect of the application, the method for installing the coal mine underground deep hole micro-seismic probe comprises the following steps:
drilling construction;
connecting a microseismic probe, two flexible hole sealing pieces and a pushing rod in a combined manner, so that the microseismic probe is positioned between the two flexible hole sealing pieces;
connecting a drill rod with the pushing rod, driving the drill rod through a drilling machine, and feeding the microseismic probe and the flexible hole sealing piece into a preset position in the drill hole;
injecting gas or cement slurry into the two flexible hole sealing pieces, so that the two flexible hole sealing pieces are expanded and are fixedly pressed with the wall of the drilled hole;
and injecting cement grout into the space between the two flexible hole sealing pieces, and removing the drill rod after the cement grout between the two flexible hole sealing pieces is solidified.
According to the installation method of the underground coal mine deep hole micro-seismic probe, the technical effect of the installation device of the underground coal mine deep hole micro-seismic probe is achieved, and the detailed description is omitted here.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or related technologies of the present application, the drawings needed to be used in the description of the embodiments or related technologies are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a deep-hole microseismic probe installation device in a coal mine provided by the embodiment of the application;
FIG. 2 is a schematic partial structural diagram of a deep-hole microseismic probe installation device in a coal mine provided by the embodiment of the application;
FIG. 3 is a schematic diagram of a method for installing a deep-hole microseismic probe in a coal mine according to an embodiment of the present application;
reference numerals are as follows:
1. a microseismic probe; 2. a push rod; 3. a flexible hole sealing member; 4. an exhaust assembly;
5. a drill stem; 6. a grouting component; 21. a reducer union; 41: an exhaust pipe;
61: grouting pump; 62: grouting a pipeline; 63: and (4) a blasting valve.
Detailed Description
Embodiments of the present application will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the present application but are not intended to limit the scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, unless explicitly stated or limited otherwise; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
In the embodiments of the present application, unless otherwise explicitly specified or limited, a first feature "on" or "under" a second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
The device and the method for installing the coal mine underground deep hole micro-seismic probe are described below with reference to fig. 1 to 3.
According to the embodiment of the first aspect of the application, as shown in fig. 1, the coal mine underground deep hole micro-seismic probe installation device comprises a micro-seismic probe 1, a push rod 2, at least two flexible hole sealing pieces 3 and an exhaust assembly 4;
the two flexible hole sealing pieces 3 are connected with one end of the push rod 2;
the microseismic probe 1 is fixedly arranged on the push rod 2, and the microseismic probe 1 is positioned between the two flexible hole sealing pieces 3;
one end of the exhaust component 4 is communicated with the space between the two flexible hole sealing pieces 3, and the other end of the exhaust component 4 is communicated with the outside.
When using, install the one end of push rod 2 in the drilling through rig or corresponding equipment, the other end of push rod 2 is located the drill way department of drilling, microseismic probe 1 is along with installing in the drilling, and two flexible hole sealing pieces 3 are connected with the one end of push rod 2, then two flexible hole sealing pieces 3 also install in the drilling, space and the external world between two flexible hole sealing pieces 3 of intercommunication through exhaust subassembly 4 simultaneously, with the space intercommunication between corresponding grouting equipment and two flexible hole sealing pieces 3. Then through carrying thick liquid or gas or other suitable fillers to two flexible hole sealing pieces 3 for two flexible hole sealing pieces 3 rise gradually, and two flexible hole sealing pieces 3 and drilling internal face butt make flexible hole sealing piece 3 receive the extrusion of drilling pore wall, and flexible hole sealing piece 3 passes through frictional force and the sealed fixed connection of drilling pore wall. Then to the space injection cement thick liquid between two flexible hole sealing pieces 3, make the cement thick liquid be full of the space between two flexible hole sealing pieces 3, including cement thick liquid with microseismic probe 1 parcel, need not to pack up the cement thick liquid with whole drilling, the quantity of cement thick liquid has been reduced, the air between two flexible hole sealing pieces 3 is then discharged through exhaust assembly 4, after the space between microseismic probe 1 and the drilling pore wall is filled up, the follow-up thick liquid that lasts the injection will flow out the hole through exhaust assembly 4 outside, stop grouting pump 61 grouting this moment, the grouting process ends.
And then realized sending into the drilling through push rod 2 with slight shock probe 1 in, and play the fixed action to slight shock probe 1 through push rod 2 and two flexible hole sealing pieces 3, changed slight shock probe 1 through the interim fixed mode with the contact of drilling pore wall, solved the problem that interim fixed effect is limited by drilling country rock geological conditions, improved deep hole slight shock probe 1 installation accuracy, prevent that slight shock probe 1 from taking place to rock the aversion before the cement thick liquid solidifies, avoided slight shock probe 1 to produce the position problem of moving by the influence of geological conditions, improved the geological conditions application scope of slight shock probe 1.
In the embodiment of the application, the microseismic probe 1 is connected with external equipment through a signal wire. It should be noted that the signal line can pass through the flexible hole sealing member 3 to be connected with an external device, and the signal line is connected with the flexible hole sealing member 3 in a sealing manner. The signal line also can be directly connected with external equipment, extrudes the signal line on the drilling pore wall when flexible hole sealing piece 3 expands, and flexible hole sealing piece 3 is sealing connection with the drilling pore wall still.
Wherein, in the embodiment of the present application, the push rod 2 can pass through the flexible hole sealing member 3 and be connected with the flexible hole sealing member 3 in a sealing manner. The push rod 2 can also be fixedly connected with the outer surface of the flexible hole sealing piece 3.
Wherein, in the embodiment of the present application, the exhaust assembly 4 can pass through the flexible hole sealing member 3 and be connected with the flexible hole sealing member 3 in a sealing way. The vent assembly 4 may also be fixedly attached to the outer surface of the flexible orifice closure 3. The exhaust component 4 can also be fixedly connected with the push rod 2.
In the embodiment of the present application, the flexible closure 3 is, for example, a pouch. It should be understood that the flexible grommet 3 may be any other suitable structure.
In one embodiment of the present application, as shown in fig. 1, the exhaust assembly 4 includes at least one exhaust pipe 41, one end of the exhaust pipe 41 is located between two flexible hole sealing members 3, and the other end of the exhaust pipe 41 is communicated with the outside. When the flexible sealing device is used, the space between the two flexible sealing elements is communicated with the outside through the exhaust pipe 41, and when cement grout is injected into the space between the two flexible sealing elements, air between the two flexible sealing elements can be timely discharged through the exhaust pipe 41, so that the injection of the cement grout can be smoothly carried out.
In one embodiment of the present application, the portion of the exhaust pipe 41 located between the two flexible hole sealing members 3 is sequentially provided with a plurality of exhaust holes along the length direction. When using, through set up a plurality of exhaust holes in one of blast pipe 41, and make the exhaust hole arrange along length direction, when the space between two flexible hole sealing pieces 3 is full of cement thick liquid gradually, air between two flexible hole sealing pieces 3 can be discharged through blast pipe 41, when blast pipe 41 is wrapped up by cement thick liquid gradually, because be provided with a plurality of exhaust holes on blast pipe 41, and set up along length direction, and then only part exhaust hole is stopped up by cement thick liquid, air between two flexible hole sealing pieces 3 can be discharged through remaining exhaust hole, ensured that air between two flexible hole sealing pieces 3 can discharge smoothly.
In one embodiment of the application, as shown in fig. 1 and fig. 2, the coal mine underground deep hole microseismic probe installation device further comprises a drill rod 5, one end of the drill rod 5 is connected with the other end of the push rod 2, and the other end of the drill rod 5 is connected with a drilling machine. When using, through linking together drilling rod 5 and push rod 2, then drive drilling rod 5 through the rig and send into the drilling with catch bar and microseism probe 1 on the push rod 2 in, the propelling movement distance is too short when having solved through artifical propelling movement microseism probe 1, is difficult to satisfy the problem of design height requirement, has improved the installation depth of microseism probe 1. And before the cement slurry between the two flexible hole sealing pieces 3 is solidified, the connection between the drill rod 5 and the push rod 2 is kept, the push rod 2 is fixed through the drill rod 5, the stability of the micro-seismic probe 1 on the push rod 2 is further improved, the micro-seismic probe 1 is temporarily fixed through the combination of the drill rod 5 and the flexible hole sealing pieces 3, the problem that the micro-seismic probe 1 is influenced by geological conditions to generate position movement before the cement slurry is solidified is solved, and the geological condition application range of the micro-seismic probe 1 is widened.
In one embodiment of the present application, as shown in fig. 1 and 2, a reducer union 21 is fixedly arranged at the other end of the push rod 2, and the reducer union 21 is detachably connected with the drill rod 5. When the micro-seismic probe is used, the drill rod 5 is connected with the reducing joint 21, then the drill rod 5 is controlled through the drilling machine, the push rod 2 is sent into a drill hole, the micro-seismic probe 1 is located at a preset position in the drill hole, and the micro-seismic probe 1 can be fixed through the drill rod 5 and the flexible hole sealing piece 3. And then cement slurry is injected into the space between the two flexible hole sealing pieces 3, so that the micro-seismic probe 1 is wrapped by the cement slurry, and after the cement slurry is solidified, the drill rod 5 is detached from the reducer union 21, so that the drill rod is convenient to reuse.
In the embodiment of the present application, the connection manner of the reducer union 21 and the push rod 2 is, for example, welding. It should be appreciated that the reducer union 21 may be fixedly connected to the push rod 2 by any other suitable means.
In the embodiment of this application, through set up the external screw thread on reducing joint 21, be provided with on drilling rod 5 with external screw thread assorted internal thread, and then can realize drilling rod 5 and reducing joint 21 can dismantle and be connected, and drive drilling rod 5 through the rig and rotate, can realize drilling rod 5 and reducing joint 21's high-speed joint or dismantlement. It should be appreciated that the drill pipe 5 and the sub 21 may be connected by any other suitable releasable connection.
In one embodiment of the application, as shown in fig. 1, the coal mine underground deep hole micro-seismic probe installation device further comprises a grouting assembly 6, the grouting assembly 6 is communicated with a space between the two flexible hole sealing pieces 3, and the grouting assembly 6 is used for conveying cement slurry to the space between the two flexible hole sealing pieces 3. When using, install microseismic probe 1 on push rod 2 to connect push rod 2 and two flexible hole sealing pieces 3, make microseismic probe 1, push rod 2 and two flexible hole sealing pieces 3 form an subassembly, then install the subassembly in the drilling hole, and to injecting cement thick liquid or gas in two flexible hole sealing pieces 3, make the flexible hole sealing piece 3 inflation and the extrusion of drilling hole wall, seal microseismic probe 1 between two flexible hole sealing pieces 3. And then, delivering cement slurry to the space between the two flexible hole sealing pieces 3 through the grouting assembly 6, so that the cement slurry in the micro-seismic probe 1 is wrapped, and after the cement slurry is solidified, fixing the micro-seismic probe 1 at a preset position in a drill hole.
In one embodiment of the present application, as shown in fig. 1, the grouting assembly 6 is respectively communicated with two flexible hole sealers 3, and the grouting assembly 6 is used for delivering cement grout to the two flexible hole sealers 3. When the micro-seismic probe is used, cement slurry is injected into the two flexible hole sealing pieces 3 through the grouting assembly 6, so that the flexible hole sealing pieces 3 expand and are extruded with the wall of a drilling hole, and the micro-seismic probe 1 is sealed between the two flexible hole sealing pieces 3. Then the grouting component 6 injects cement grout into the space between the two flexible hole sealing pieces 3, so that the microseismic probe 1 is wrapped by the cement grout, and the fixation of the microseismic probe 1 is realized. Can be successively through slip casting subassembly 6 to the space injection cement thick liquid between flexible hole sealing piece 3 and two flexible hole sealing pieces 3, need not other extra equipment and carry out the inflation operation to flexible hole sealing piece 3 for the installation of microseism probe 1 is more convenient.
In one embodiment of the present application, as shown in fig. 1, the grouting assembly 6 includes a grouting pump 61, a grouting pipe 62 and a blast valve 63, the grouting pump 61 is connected to the grouting pipe 62, the grouting pipe 62 is respectively communicated with two of the flexible hole sealing members 3, the blast valve 63 is installed between the two flexible hole sealing members 3, and the blast valve 63 is connected to the grouting pipe 62. When the micro-seismic probe fixing device is used, cement slurry is injected into the two flexible hole sealing pieces 3 through the grouting pipeline 62 by the grouting pump 61, when the cement slurry in the two flexible hole sealing pieces 3 is gradually increased, the flexible hole sealing pieces 3 are extruded with the wall of a drilling hole along with expansion, and when the flexible hole sealing pieces 3 are filled with the cement slurry, the pressure in the grouting pipeline 62 is increased along with the continuous injection of the cement slurry until the opening pressure of the explosion valve 63 is reached, so that the explosion valve 63 is opened, the cement slurry enters the space between the two flexible hole sealing pieces 3 through the explosion valve 63, the micro-seismic probe 1 is fixed, the grouting operation of the space between the flexible hole sealing pieces 3 and the two flexible hole sealing pieces 3 can be simultaneously completed through one grouting assembly 6, and the micro-seismic probe 1 is more convenient to install.
Wherein, in the embodiment of the present application, the grouting pipe 62 passes through the flexible hole sealing member 3 and is connected with the flexible hole sealing member 3 in a sealing manner, and the part of the grouting pipe 62 located in the flexible hole sealing member 3 is provided with a grout outlet.
In an embodiment of the application, the coal mine underground deep hole micro-seismic probe installation device further comprises a first gas conveying assembly, the first gas conveying assembly is respectively connected with the two flexible hole sealing pieces 3, and the first gas conveying assembly is used for conveying gas to the flexible hole sealing pieces 3. When using, carry gas in to flexible hole sealing piece 3 through first gas conveying assembly for flexible hole sealing piece 3 inflation and drilling pore wall extrusion, make the microseismic probe 1 sealed between two flexible hole sealing pieces 3, convenient follow-up toward injecting into the fixed microseismic probe 1 of cement thick liquid between two flexible hole sealing pieces 3, and then need not to fill up the cement thick liquid with drilling and can realize fixing microseismic probe 1, reduced the use amount of cement thick liquid.
In an embodiment of the application, the coal mine underground deep hole microseismic probe installation device further comprises a second gas conveying assembly, the second gas conveying assembly is connected with one of the flexible hole sealing pieces 3, the second gas conveying assembly is used for conveying gas to one of the flexible hole sealing pieces 3, the grouting assembly 6 is connected with the other flexible hole sealing piece 3, and the grouting assembly 6 is used for conveying cement slurry to the other flexible hole sealing piece. When using, carry gas to one of them flexible hole sealing piece 3 through the second gas conveying subassembly, make one of them flexible hole sealing piece 3 inflation and the extrusion of drilling pore wall, inject cement thick liquid into another flexible hole sealing piece 3 through slip casting subassembly 6, make another flexible hole sealing piece 3 inflation and the extrusion of drilling pore wall, and then two flexible hole sealing pieces 3 all expand and the extrusion of drilling pore wall, seal microseismic probe 1 between two flexible hole sealing pieces 3, make things convenient for follow-up toward injecting into the fixed microseismic probe 1 of cement thick liquid between two flexible hole sealing pieces 3, and then need not to fill up the cement thick liquid with drilling and can realize fixing microseismic probe 1, the use amount of cement thick liquid has been reduced.
Wherein, in the embodiment of this application, first gas delivery subassembly and second gas delivery subassembly all for example include air pump and air-supply pipe, and air pump and air-supply pipe are connected, carry gas to flexible hole sealing piece through the air-supply pipe. It should be understood that the first and second gas delivery assemblies may be comprised of any other suitable components.
According to the embodiment of the second aspect of the present application, there is provided a method for installing a deep hole microseismic probe in a coal mine, as shown in fig. 3, the method includes:
s1, drilling construction;
specifically, a vertical deep hole of a top plate is constructed by adopting an underground hydraulic drilling machine, the aperture is larger than the maximum diameter of the combination of the flexible hole sealing piece 3 and the micro-seismic probe 1, and the flexible hole sealing piece 3 and the micro-seismic probe 1 are ensured to have enough space to be sent into the hole. And after the drilling construction is finished, the drill rods 5 are withdrawn from the drill holes one by one.
S2, connecting the micro-seismic probe 1, the two flexible hole sealing pieces 3 and the push rod 2 in a combined manner, so that the micro-seismic probe 1 is positioned between the two flexible hole sealing pieces 3;
specifically, install microseism probe 1 and two flexible hole sealing pieces 3 on push rod 2 respectively to install microseism probe 1 between two flexible hole sealing pieces 3, make microseism probe 1, two flexible hole sealing pieces 3 and push rod 2 constitute an subassembly, make things convenient for follow-up direct integral erection in the drilling.
S3, connecting the drill rod 5 with the push rod 2, driving the drill rod 5 through a drilling machine, and feeding the microseismic probe 1 and the flexible hole sealing piece 3 into a preset position in the drill hole;
specifically, keep away from the one end of flexible hole sealing piece 3 with push rod 2 and be connected with drilling rod 5, then be connected drilling rod 5 and rig, drive drilling rod 5 through the rig, and then drive push rod 2 and the slight shock probe 1 on the push rod 2 and remove the preset position in the drilling.
S4, injecting gas or cement slurry into the two flexible hole sealing pieces 3 to ensure that the two flexible hole sealing pieces 3 expand and are fixedly pressed with the hole wall of the drilled hole;
specifically, gas is injected into the flexible hole sealing piece 3 through the gas conveying assembly, or cement slurry is injected into the flexible hole sealing piece 3 through the grouting assembly 6. The flexible hole sealing piece 3 is made to expand and extrude with the hole wall of the drilled hole, the flexible hole sealing piece 3 is fixedly connected with the hole wall of the drilled hole through friction force, and the microseismic probe 1 is plugged between the two flexible hole sealing pieces 3.
And S5, injecting cement grout into the space between the two flexible hole sealing pieces 3, and removing the drill rod 5 after the cement grout between the two flexible hole sealing pieces 3 is solidified.
Specifically, after the two flexible hole sealers 3 are fully expanded, cement slurry is injected into the space between the two flexible hole sealers 3. The continuous injection of cement slurry extrudes the air in the hole through the exhaust assembly 4; after the space between the microseism probe 1 and the borehole wall is filled, the subsequent grout continuously injected flows out of the hole through the exhaust assembly 4, the grouting pump 61 is stopped at the moment, the grouting process is finished, the connection between the drill rod 5 and the push rod 2 is kept before the cement grout is solidified, and the drill rod 5 is removed after the cement grout is solidified. Realized sending into the drilling through push rod 2 with slight shock probe 1 in, and play the fixed action to slight shock probe 1 through push rod 2 and two flexible hole sealing pieces 3, changed slight shock probe 1 through the temporary fixed mode with the contact of drilling pore wall, the problem of temporary fixed effect subject to drilling country rock geological conditions has been solved, the installation accuracy of deep hole slight shock probe 1 has been improved, prevent that slight shock probe 1 from taking place to rock the aversion before the cement thick liquid solidifies, avoided slight shock probe 1 to receive the geological conditions influence and produce the position moving problem, the geological conditions application scope of slight shock probe 1 has been improved.
In the embodiment of the present application, the steps S4 and S5 may also be: the grouting pump 61 injects cement grout into the two flexible hole sealing pieces 3 through the grouting pipeline 62, when the cement grout in the two flexible hole sealing pieces 3 increases gradually, the flexible hole sealing pieces 3 are extruded with the hole wall of the drilled hole along with expansion, when the flexible bore sealing member 3 is filled with cement grout, the pressure in the grouting pipe 62 is raised as the cement grout is continuously injected, until the opening pressure of the burst valve 63 is reached, so that the burst valve 63 is opened, cement slurry enters the space between the two flexible hole sealing pieces 3 through the burst valve 63, when the space between the microseismic probe 1 and the wall of the borehole is filled, the subsequent continuously injected slurry flows out of the borehole through the exhaust assembly 4, the grouting pump 61 is stopped at the moment, the grouting process is finished, before the cement grout is solidified, the connection between the drill rod 5 and the push rod 2 is kept, and after the cement grout is solidified, the drill rod 5 is detached.
Finally, it should be noted that the above embodiments are only for illustrating the present application, and do not limit the present application. Although the present application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalents may be made to the technical solutions of the present application without departing from the spirit and scope of the technical solutions of the present application, and the technical solutions of the present application should be covered by the claims of the present application.
Claims (10)
1. A coal mine underground deep hole micro-seismic probe mounting device is characterized by comprising a micro-seismic probe, a push rod, at least two flexible hole sealing pieces and an exhaust assembly;
the two flexible hole sealing pieces are connected with one end of the pushing rod;
the microseismic probe is fixedly arranged on the push rod and is positioned between the two flexible hole sealing pieces;
one end of the exhaust assembly is communicated with the space between the two flexible hole sealing pieces, and the other end of the exhaust assembly is communicated with the outside.
2. The coal mine underground deep hole micro-seismic probe installation device according to claim 1, further comprising a drill rod, wherein one end of the drill rod is connected with the other end of the push rod, and the other end of the drill rod is connected with a drilling machine.
3. The device for installing the deep-hole microseismic probe in the coal mine according to claim 2, wherein a reducer union is fixedly arranged at the other end of the pushing rod, and the reducer union is detachably connected with the drill rod.
4. The device for installing the underground coal mine deep-hole micro-seismic probe according to any one of claims 1 to 3, characterized by further comprising a grouting assembly, wherein the grouting assembly is communicated with a space between the two flexible hole sealing pieces, and is used for conveying cement slurry to the space between the two flexible hole sealing pieces.
5. The coal mine underground deep hole microseismic probe mounting device according to claim 4 wherein the grouting component is respectively communicated with the two flexible sealing members, and the grouting component is used for conveying cement grout to the two flexible sealing members.
6. The coal mine underground deep hole micro-seismic probe mounting device as claimed in claim 4, wherein the grouting component comprises a grouting pump, a grouting pipeline and a blasting valve, the grouting pump is connected with the grouting pipeline, the grouting pipeline is respectively communicated with the two flexible hole sealing pieces, the blasting valve is mounted between the two flexible hole sealing pieces, and the blasting valve is connected with the grouting pipeline.
7. The coal mine underground deep hole microseismic probe installation device according to any one of claims 1-3, wherein the exhaust component comprises at least one exhaust pipe, one end of the exhaust pipe is positioned between the two flexible hole sealing pieces, and the other end of the exhaust pipe is communicated with the outside.
8. The coal mine underground deep hole microseismic probe mounting device according to claim 7, wherein a plurality of vent holes are sequentially arranged on the part of the vent pipe between the two flexible hole sealing pieces along the length direction.
9. The coal mine underground deep hole micro-seismic probe installation device as claimed in claim 4, further comprising a first gas conveying assembly, wherein the first gas conveying assembly is respectively connected with the two flexible sealing pieces, and the first gas conveying assembly is used for conveying gas to the flexible sealing pieces.
10. A method for installing a deep hole microseismic probe under a coal mine is characterized by comprising the following steps:
drilling construction;
connecting a microseismic probe, two flexible hole sealing pieces and a pushing rod in a combined manner, so that the microseismic probe is positioned between the two flexible hole sealing pieces;
connecting a drill rod with the pushing rod, driving the drill rod through a drilling machine, and feeding the microseismic probe and the flexible hole sealing piece into a preset position in the drill hole;
injecting gas or cement slurry into the two flexible hole sealing pieces, so that the two flexible hole sealing pieces are expanded and are fixedly pressed with the wall of the drilled hole;
and injecting cement grout into the space between the two flexible hole sealing pieces, and removing the drill rod after the cement grout between the two flexible hole sealing pieces is solidified.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532581.8A CN114763743A (en) | 2022-05-10 | 2022-05-10 | Device and method for mounting deep hole micro-seismic probe under coal mine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210532581.8A CN114763743A (en) | 2022-05-10 | 2022-05-10 | Device and method for mounting deep hole micro-seismic probe under coal mine |
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| CN114763743A true CN114763743A (en) | 2022-07-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703299A (en) * | 2024-02-06 | 2024-03-15 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
| CN117703299B (en) * | 2024-02-06 | 2024-05-14 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
-
2022
- 2022-05-10 CN CN202210532581.8A patent/CN114763743A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117703299A (en) * | 2024-02-06 | 2024-03-15 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
| CN117703299B (en) * | 2024-02-06 | 2024-05-14 | 山东科技大学 | Visual sealing device and sealing method for gas extraction drilling |
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