CN216142754U - System for determining coal seam trend and coal seam thickness and data transmission equipment - Google Patents
System for determining coal seam trend and coal seam thickness and data transmission equipment Download PDFInfo
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- CN216142754U CN216142754U CN202120231445.6U CN202120231445U CN216142754U CN 216142754 U CN216142754 U CN 216142754U CN 202120231445 U CN202120231445 U CN 202120231445U CN 216142754 U CN216142754 U CN 216142754U
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Abstract
The utility model provides a system for determining the coal seam trend and the coal seam thickness and a data transmission device, wherein the system comprises: the measurement-while-drilling equipment is arranged at one end of the drill collar pipeline; the gamma detection equipment is arranged at the other end of the drill collar pipeline; the data transmission equipment is arranged in a drill collar pipeline and is positioned between the measurement-while-drilling equipment and the gamma detection equipment; the upper computer is arranged in the control room and is connected with the data transmission equipment; therefore, when the drill collar drills underground, the gamma detection equipment can be used for acquiring formation gamma data in real time, the measurement while drilling equipment is used for acquiring well trajectory data in real time, and then the upper computer can determine the thickness and the trend of the coal bed according to the formation gamma data and the well trajectory data and guide the drill collar to drill along the coal bed in real time; therefore, the thickness and the trend of the coal bed can be determined without frequently opening branches, the construction difficulty is reduced, and the coal mining efficiency is improved.
Description
Technical Field
The utility model belongs to the technical field of coal mining, and particularly relates to a system for determining the coal seam trend and the coal seam thickness and data transmission equipment.
Background
The directional drilling technology comprises the underground directional drilling technology of a coal mine and the directional drilling technology of other ground and rock caves. The directional drilling technology for the underground coal mine refers to a technology for drilling a hole in a coal roadway or a rock roadway along a horizontal direction or a nearly horizontal direction according to a pre-designed drilling track, and is also called a horizontal directional drilling technology.
The conventional method for measuring the thickness and the trend of the coal seam in the coal roadway at present comprises the following steps: the vertical distance between the main hole and the top plate and the bottom plate is measured by opening the branch hole to probe the top and the bottom by using a horizontal directional drilling technology, and the thickness and the trend of the coal bed are analyzed by the vertical distance.
However, the method in the prior art is long in time consumption, high in construction difficulty, greatly influenced by coal quality and rock quality and greatly influences coal mining efficiency.
Disclosure of Invention
Aiming at the problems in the prior art, the embodiment of the utility model provides a system for determining the coal seam trend and the coal seam thickness and data transmission equipment, which are used for solving the technical problems that the coal mining efficiency is reduced due to high construction difficulty and long time consumption when the coal seam trend is determined in the prior art.
The utility model provides a system for determining coal seam trend, which comprises:
the measurement-while-drilling equipment is arranged at one end of the drill collar pipeline;
the gamma detection equipment is arranged at the other end of the drill collar pipeline;
the data transmission equipment is arranged in the drill collar pipeline and is positioned between the measurement-while-drilling equipment and the gamma detection equipment;
and the upper computer is arranged in the control room and is connected with the data transmission equipment.
Optionally, the system further includes:
the protective cylinder is arranged in the drill collar pipeline; the measurement while drilling equipment, the gamma detection equipment and the data transmission equipment are all positioned in the protection barrel;
and the support core is arranged in the protection barrel and is positioned between the data transmission equipment and the while-drilling equipment.
Optionally, the system further includes:
the silica gel column is arranged at one end of the gamma detection equipment;
and the first plug is arranged at one end of the silica gel column.
Optionally, the system further includes:
the first clamp spring groove is arranged at one end of the drill collar pipeline;
the first eccentric partition plate is arranged on one side of the first clamp spring groove;
and the first tensioning screw is arranged on the first eccentric clapboard.
Optionally, the system further includes:
one end of the axial shock absorption component is connected with one end of the measurement while drilling equipment;
one end of the transition connecting rod is connected with the other end of the axial damping component;
the second plug is connected with the other end of the transition connecting rod;
and the transition electrode is connected with the other end of the transition connecting rod.
Optionally, the system further includes:
and the protective shell is arranged on the periphery of the transition electrode.
Optionally, the system further includes:
and the insulating sleeve is arranged at one end of the transition electrode.
Optionally, the system further includes:
the second clamp spring groove is arranged at the other end of the drill collar pipeline;
the second eccentric clapboard is arranged on one side of the second clamp spring groove;
and the second tensioning screw is arranged on the second eccentric clapboard.
The present invention also provides a data transmission apparatus, including: a microcontroller and a data modulator; the microcontroller comprises:
the data receiving serial port is connected with the measurement while drilling equipment;
the timer is connected with the gamma detection equipment;
the buffer is respectively connected with the output port of the data receiving serial port and the output port of the timer;
and the output port of the data sending serial port is connected with the data modulator.
Optionally, the data transmission device further includes:
and the power supply is respectively connected with the data modulator and the microcontroller.
The utility model provides a system for determining the coal seam trend and the coal seam thickness and a data transmission device, wherein the system comprises: the protective cylinder is arranged in the drill collar pipeline; the measurement while drilling equipment is arranged at one end of the protection cylinder; the gamma detection equipment is arranged at the other end of the protection cylinder; the data transmission equipment is arranged in the protective barrel and is positioned between the measurement-while-drilling equipment and the gamma detection equipment; the upper computer is arranged in the control room and is connected with the data transmission equipment; therefore, when the drill collar drills underground, the gamma detection equipment can be used for acquiring formation gamma data in real time, the measurement while drilling equipment is used for acquiring well trajectory data in real time, and then the upper computer can determine the thickness and the trend of the coal bed according to the formation gamma data and the well trajectory data and guide the drill collar to drill along the coal bed in real time; therefore, the thickness and the trend of the coal bed can be determined without frequently opening branches, the construction difficulty is reduced, and the coal mining efficiency is improved.
Drawings
FIG. 1 is a block diagram of a system for determining a coal seam strike and a coal seam thickness according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a system for determining a coal seam strike and a coal seam thickness according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a portion of a schematic structural diagram of a system for determining a coal seam strike and a coal seam thickness according to an embodiment of the present invention;
FIG. 4 is another partial schematic view of a schematic structural diagram of a system for determining a coal seam strike and a coal seam thickness according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a data transmission device according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a human-machine interface for displaying the coal seam strike according to an embodiment of the present invention.
Detailed Description
The utility model provides a system for determining the coal seam trend and the coal seam thickness and data transmission equipment, and aims to solve the technical problem that coal mining efficiency is reduced due to high construction difficulty and long time consumption when the coal seam trend is determined in the prior art.
The technical solution of the present invention is further described in detail by the accompanying drawings and the specific embodiments.
This embodiment provides a system for determining coal seam trend and coal seam thickness, as shown in fig. 1, the system includes: the system comprises measurement-while-drilling equipment 1, gamma detection equipment 2, data transmission equipment 3 and an upper computer 4; wherein the content of the first and second substances,
the measurement-while-drilling equipment 1 is arranged at one end of a drill collar 5 pipeline; the system is used for acquiring well trajectory data when the drill collar drills in the underground;
the gamma detection device 2 is arranged at the other end of the pipeline of the drill collar 5; the device is used for collecting formation gamma data when the drill collar drills in a well;
the data transmission equipment 3 is arranged in a drill collar 5 pipeline, and the data transmission equipment 3 is positioned between the measurement-while-drilling equipment 1 and the gamma detection equipment 2; the system is used for receiving well trajectory data sent by the measurement while drilling equipment 1 and the detection pulse number sent by the gamma detection equipment 2, coding the well trajectory data and the formation gamma data together, and sending the well trajectory data and the formation gamma data which are coded together to the remote upper computer 4 through single-core transmission;
and the upper computer 4 is arranged in the control room, and the upper computer 4 is connected with the data transmission equipment 3. And the method is used for analyzing the stratum gamma data and the well trajectory data to determine the thickness and the trend of the coal bed.
Specifically, referring to fig. 2, the measurement-while-drilling device 1 is eccentrically installed inside the drill collar 5 and is located at one end of the drill collar 5; the gamma detection device 2 is eccentrically arranged in the drill collar 5 and is positioned at the other end (close to the drill bit) of the drill collar 5; the drilling measuring device 1 and the gamma detection device 2 move synchronously along with the drill collar 5. The measurement-While-drilling device 1 may be a (MWD) device.
The data transmission device 3 is arranged inside the drill collar 5 through a support core 6 (which can be understood as a fixed component), the data transmission device 3 is positioned between the measurement-while-drilling device 1 and the gamma detection device 2, and the support core 6 is used for fixing the data transmission device 3.
In order to prevent the measurement-while-drilling equipment 1, the gamma detection equipment 2 and the data transmission equipment 3 from being damaged in the process of advancing the drill collar 5, the measurement-while-drilling equipment 1, the gamma detection equipment 2, the data transmission equipment 3 and the support core 6 are arranged in a protective cylinder 7, and the protective cylinder 7 is integrally arranged in a pipeline of the drill collar 5. The protective cylinder 7 may be a titanium protective cylinder.
Here, with continued reference to fig. 3 (fig. 3 is a partial schematic view of fig. 2), the system further includes: and the silica gel column 8 is arranged at one end of the gamma detection device 2 and is used for damping the gamma detection device 2. One end of the silica gel column 8 is further provided with a first plug 9, and the first plug 9 is used for preventing impurities such as water, dust and the like from entering the gamma detection device 2. The first plug 9 may be a titanium plug.
In order to be able to fix the protective cylinder 7 inside the drill collar 5, the system further comprises: the first clamp spring groove 10 is arranged at one end of the drill collar 5 pipeline and is used for fixing one end of the protection cylinder 7 at one end of the drill collar 5 pipeline.
Because the gamma detection device 2 needs to be eccentrically installed inside the drill collar 5, the system further comprises: and the first eccentric partition plate 12 is arranged on one side of the first clamp spring groove 10, and the first eccentric partition plate 12 is used for providing a positioning function so as to ensure that the gamma detection device 2 is eccentrically arranged in the drill collar 5.
Further, with continued reference to fig. 3, the system further comprises: and the first tensioning screw 13 is arranged on the first eccentric partition plate 12 and used for fastening the protection cylinder 7.
Similarly, in order to damp the measurement while drilling apparatus 1, referring to fig. 4 (fig. 4 is another partial schematic view of fig. 2), the system further includes: and an axial damping part 14, wherein one end of the axial damping part 14 is connected with one end of the measurement while drilling device 1.
The other end of the axial shock absorption component 14 is connected with one end of a transition connecting rod 15, and the other end of the transition connecting rod 15 is respectively connected with a second plug 16 and a transition electrode 17; the second plug 16 is used for preventing impurities such as water, dust and the like from entering the measurement-while-drilling device 1. The transition electrode 17 is used for providing power for the measurement while drilling device 1, the gamma detection device 2 and the data transmission device 3, and the transition electrode 17 is fixed through a connecting screw 18.
Here, in order to protect the transition electrode 17, a protective shell 19 is filled around (around and on) the transition electrode 17, and the protective shell 19 may be made of high temperature epoxy resin. An insulating sleeve 20 is also attached to one end of the transition electrode 17.
With continued reference to fig. 4, the system further comprises: and the second clamp spring groove 201 is arranged at the other end of the drill collar 5 pipeline and is used for fixing the other end of the protection cylinder 7 at the other end of the drill collar 5 pipeline.
Similarly, since the measurement while drilling apparatus 1 also needs to be eccentrically mounted inside the drill collar 5, the system further includes: and a second eccentric partition 202, wherein the second eccentric partition 202 is installed on one side of the second clamp spring groove 201, and the second eccentric partition 202 is used for providing a positioning function so as to ensure that the measurement while drilling equipment 1 is eccentrically installed in the drill collar 5.
Further, with continued reference to fig. 4, the system further comprises: and a second tensioning screw 203 is arranged on the second eccentric partition plate 202 and used for fastening the protection cylinder 7.
In practical application, the drilling measurement device 1, the gamma detection device 2, the data transmission device 3, the supporting core 6 and other components are firstly installed in the protection cylinder 7, then the protection cylinder 7 is installed inside the drill collar 5, the protection cylinder is pre-fixed by using the first clamp spring groove 10 and the second clamp spring groove 201, and then the first tensioning screw 13 and the second tensioning screw 203 are tightened, so that the protection cylinder 7 is fastened inside the drill collar 5.
When the drill collar 5 drills underground, the measurement-while-drilling equipment 1 collects well trajectory data in real time at intervals of a preset drilling distance (such as 300m), and sends the well trajectory data to the data transmission equipment 3; the gamma detection equipment 2 sends gamma rays to the well in real time to form formation gamma data, and sends the formation gamma data to the data transmission equipment 3. Wherein the well trajectory data may include: well deviation data, azimuth data, geomagnetic inclination angle data, magnetic high-side data, gravity high-side data, temperature data and the like.
Here, referring to fig. 5, the present embodiment also provides a data transmission apparatus 3, the data transmission apparatus 3 including: microcontroller, data modulator 21 and power 22, the microcontroller includes: a data receiving serial port 23, a timer 24, a buffer 25 and a data sending serial port 26; the microcontroller may be specifically an MCU; wherein the content of the first and second substances,
the data receiving serial port 23 is connected with the measurement while drilling equipment 1 and used for receiving well trajectory data;
a timer 24 connected to the gamma detection device 2 for receiving formation gamma data;
the buffer 25 is respectively connected with the output port of the data receiving serial port 23 and the output port of the timer 24;
and a data transmitting serial port 26 connected to the input port of the buffer 25, and an output port of the data transmitting serial port 26 connected to the data modulator 21.
The data transmission device 3 can receive well trajectory data through the data receiving serial port 23, receive formation gamma data through the timer 24, and count the formation gamma data.
In order to simplify the data transmission mode and improve the data transmission efficiency, the well trajectory data and the formation gamma data are encoded together and transmitted to the upper computer 4 through single-core transmission in the form of electric signals. After the data transmission device 3 receives the well trajectory data and the formation gamma data, the well trajectory data and the formation gamma data are cached so as to be stored in the cache 25; and then extracting well trajectory data and formation gamma data from the buffer 25, and sending the well trajectory data and the formation gamma data to the data modulator 21 through the data sending serial port 26.
The data modulator 21 performs Time Division Multiple Access (TDMA) modulation on the wellbore trajectory data and the formation gamma data. Of course, the modulation method is not limited to TDMA modulation, and may be determined according to actual situations.
And then the modulated well trajectory data and the stratum gamma data are sent to an upper computer 4.
Here, the power source 22 may provide power to the data modulator 21 and the microcontroller, the measurement while drilling device 1, and the gamma detection device 2. For example, the power source 22 provides 5V power for the data modulator 21 and the microcontroller, and 24V power for the measurement while drilling device 1 and the gamma detection device 2.
And after receiving the well trajectory data and the stratum gamma data, the upper computer 4 demodulates the well trajectory data and the stratum gamma data, analyzes the demodulated stratum gamma data and the well trajectory data, and determines the thickness and the trend of the coal bed.
Specifically, when the drill collar is advanced, the gamma detection device 2 generates a pulse number (CPS) value according to the radioactive intensity of the surrounding rock stratum, and the CPS value is different at different positions. Namely, the corresponding CPS values are different at the positions of the coal seam, the coal seam top plate and the coal seam bottom plate. The upper computer 4 can determine a gamma value of the stratum through the CPS value, determine a coal seam position, a coal seam roof position and a coal seam floor position based on the gamma value of the stratum and azimuth data in the well trajectory data, then determine the height of the coal seam roof, the height of the coal seam floor and the height difference between the coal seam roof and the coal seam floor based on the coal seam position, the coal seam roof position and the coal seam floor position and by combining well inclination data in the well trajectory data, and further determine the coal seam thickness and prejudge the coal seam trend.
For example, when the drill collar approaches the position of a detection area of the coal seam roof (about 300mm away from the roof), the corresponding CPS value is obviously increased; when the drill collar is at the position of the detection zone of the bottom plate (about 300mm from the bottom plate), the corresponding CPS value is obviously reduced. And determining a corresponding stratum gamma value according to the change of the CPS value, and determining the height of the coal seam roof, the height of the coal seam floor and the height difference between the coal seam roof and the coal seam floor by combining azimuth data of the drill collar, thereby determining a coal seam trend curve based on the position of the coal seam roof, the position of the coal seam floor and well deviation data, and determining the thickness of the coal seam based on the height difference between the coal seam roof and the coal seam floor.
When the coal seam trend is determined, pushing the coal seam trend to a human-computer interface in real time, wherein the human-computer interface is shown in fig. 6.
The system for determining the coal seam trend and the coal seam thickness and the data transmission equipment provided by the utility model have the beneficial effects that at least:
the utility model provides a system for determining the coal seam trend and the coal seam thickness and a data transmission device, wherein the system comprises: the protective cylinder is arranged in the drill collar pipeline; the measurement while drilling equipment is arranged at one end of the protection cylinder; the gamma detection equipment is arranged at the other end of the protection cylinder; the data transmission equipment is arranged in the protective barrel and is positioned between the measurement-while-drilling equipment and the gamma detection equipment; the upper computer is arranged in the control room and is connected with the data transmission equipment; therefore, when the drill collar drills underground, the gamma detection equipment can be used for acquiring formation gamma data in real time, the measurement while drilling equipment is used for acquiring well trajectory data in real time, and then the upper computer can determine the thickness and the trend of the coal bed according to the formation gamma data and the well trajectory data and guide the drill collar to drill along the coal bed in real time; therefore, the thickness and the trend of the coal bed can be determined without frequently opening branches, the construction difficulty is reduced, and the coal mining efficiency is improved.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, and any modifications, equivalents, improvements, etc. that are within the spirit and principle of the present invention should be included in the present invention.
Claims (10)
1. A system for determining coal seam strike and coal seam thickness, the system comprising:
the measurement-while-drilling equipment is arranged at one end of the drill collar pipeline;
the gamma detection equipment is arranged at the other end of the drill collar pipeline;
the data transmission equipment is arranged in the drill collar pipeline and is positioned between the measurement-while-drilling equipment and the gamma detection equipment;
and the upper computer is arranged in the control room and is connected with the data transmission equipment.
2. The system of claim 1, wherein the system further comprises:
the protective cylinder is arranged in the drill collar pipeline; the measurement while drilling equipment, the gamma detection equipment and the data transmission equipment are all positioned in the protection barrel;
and the support core is arranged in the protection barrel and is positioned between the data transmission equipment and the while-drilling equipment.
3. The system of claim 1, wherein the system further comprises:
the silica gel column is arranged at one end of the gamma detection equipment;
and the first plug is arranged at one end of the silica gel column.
4. The system of claim 1, wherein the system further comprises:
the first clamp spring groove is arranged at one end of the drill collar pipeline;
the first eccentric partition plate is arranged on one side of the first clamp spring groove;
and the first tensioning screw is arranged on the first eccentric clapboard.
5. The system of claim 1, wherein the system further comprises:
one end of the axial shock absorption component is connected with one end of the measurement while drilling equipment;
one end of the transition connecting rod is connected with the other end of the axial damping component;
the second plug is connected with the other end of the transition connecting rod;
and the transition electrode is connected with the other end of the transition connecting rod.
6. The system of claim 5, wherein the system further comprises:
and the protective shell is arranged on the periphery of the transition electrode.
7. The system of claim 5, wherein the system further comprises:
and the insulating sleeve is arranged at one end of the transition electrode.
8. The system of claim 1, wherein the system further comprises:
the second clamp spring groove is arranged at the other end of the drill collar pipeline;
the second eccentric clapboard is arranged on one side of the second clamp spring groove;
and the second tensioning screw is arranged on the second eccentric clapboard.
9. A data transmission device, characterized in that the data transmission device comprises: a microcontroller and a data modulator; the microcontroller comprises:
the data receiving serial port is connected with the measurement while drilling equipment;
the timer is connected with the gamma detection equipment;
the buffer is respectively connected with the output port of the data receiving serial port and the output port of the timer;
and the output port of the data sending serial port is connected with the data modulator.
10. The data transmission device of claim 9, wherein the data transmission device further comprises:
and the power supply is respectively connected with the data modulator and the microcontroller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120231445.6U CN216142754U (en) | 2021-01-27 | 2021-01-27 | System for determining coal seam trend and coal seam thickness and data transmission equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120231445.6U CN216142754U (en) | 2021-01-27 | 2021-01-27 | System for determining coal seam trend and coal seam thickness and data transmission equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216142754U true CN216142754U (en) | 2022-03-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120231445.6U Active CN216142754U (en) | 2021-01-27 | 2021-01-27 | System for determining coal seam trend and coal seam thickness and data transmission equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216142754U (en) |
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2021
- 2021-01-27 CN CN202120231445.6U patent/CN216142754U/en active Active
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