Directional drilling state monitoring device and monitoring method
By integrating the information acquisition unit and ground control terminal in the drilling device, real-time monitoring of the medium type and pressure/flow velocity data of the drilling annulus, the problem that drilling rig operators can find it difficult to accurately judge the conditions in the holes, and the safety of coal mine gas extraction drilling operations is improved.
Patent Information
- Application Number
- CN202510050314.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-13
- Publication Date
- 2025-04-25
AI Technical Summary
During the coal mine gas extraction drilling operation, it is difficult for drilling rig operators to accurately judge the condition in the hole, resulting in sudden release of gas after accumulation. The existing anti-blasting hole device has limited treatment effect, and gas may still pour into the working environment, resulting in gas concentration exceeding the standard.
A directional drilling condition monitoring device is designed, including a first drill pipe, a drill pipe short-term and a second drill pipe. An information acquisition unit is provided on the drill pipe short-term and includes a pressure sensor, a flow rate sensor and a video sensor. The data is transmitted to the ground control terminal through the communication cable, and the medium type is determined by using a video sensor. The pressure sensor or flow rate sensor detects the pressure or flow rate data, and makes a threshold judgment, an alarm is issued and the extraction device is activated.
Real-time monitoring of the media type and pressure/flow velocity data of the drilling annulus is achieved, which improves the safety of drilling operations, reduces the risk of gas influx, and ensures the safety of the working environment.
Smart Images
Figure CN119878006A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of mine safety monitoring, and in particular relates to a directional drilling state monitoring device and a directional drilling state monitoring method. Background Art
[0002] As a key means to solve the gas problem in coal mines, gas extraction has been widely used in many high-gas and outburst mines, and has played an indispensable role in mine safety production. However, with the continuous deepening of coal mining depth, the gas content and ground stress in the coal seam are also gradually increasing. In many coal mines, gas extraction drilling operations frequently occur. The ejected gas and drilling slag flow into the drilling area in a large amount in a short period of time, resulting in excessive gas concentration, and may even cause serious disasters such as gas explosions, posing a major threat to mine safety production.
[0003] At present, many coal miners try to use blowout prevention devices to deal with this problem, such as installing tees or crosses at the orifices, and taking measures such as increasing the gas extraction volume to deal with the gas gushing out during the blowout. However, under complex mine conditions such as high gas content, high pressure, complex stress conditions, structurally affected areas, and mudstone roof and floor plates, problems such as hole collapse and hole blockage are often encountered during drilling operations. It is difficult for drilling rig operators to accurately judge the conditions in the hole. When the gas in the hole accumulates and is suddenly released, the existing blowout prevention devices are limited in their effectiveness in dealing with gas problems. A large amount of gas will still flow into the working environment, causing the gas concentration in the working area to exceed the standard. Summary of the invention
[0004] The purpose of the present invention is to provide a directional drilling state monitoring device, which solves the problem that it is difficult for a drilling rig operator to accurately judge the condition in the hole during the existing drilling operation.
[0005] Another object of the present invention is to provide a directional drilling status monitoring method.
[0006] The technical solution adopted by the present invention is a directional drilling status monitoring device, comprising a first drill rod, one end of the first drill rod is connected to a drill bit, the other end of the first drill rod is connected to a drill rod short circuit, an information collection unit is provided on the drill rod short circuit, the other end of the drill rod short circuit is connected to a second drill rod, the other end of the second drill rod is connected to a drilling rig water tail, a three-way valve is provided on the drilling rig water tail, the other end of the drilling rig water tail is connected to the drilling rig, the information collection unit is connected to a communication cable through a wire, and the communication cable is connected to a ground control terminal through a wire.
[0007] The present invention is also characterized in that: The first drill rod, the drill rod short connection and the second drill rod are all in the shape of hollow columns, and the communication cable is arranged in the first drill rod, the drill rod short connection and the second drill rod.
[0008] The information acquisition unit is arranged in the drill pipe short circuit, and the information acquisition unit comprises a pressure sensor, a flow velocity sensor and an instrument cabin. The instrument cabin is provided with a video sensor. The pressure sensor, the flow velocity sensor and the video sensor are respectively connected with the communication cable through wires.
[0009] The communication cable is a plurality of cables, which are independently and parallelly arranged in the first drill rod, the drill rod short circuit and the second drill rod. The pressure sensor, the flow rate sensor and the video sensor are respectively connected to the plurality of cables one by one through wires.
[0010] The ground control terminal includes a computer, the computer is connected to a PLC through wires, the PLC is respectively connected to an audible and visual alarm and an electric-controlled valve through wires, and the electric-controlled valve signal is connected to a pumping device.
[0011] Another technical solution adopted by the present invention is a directional drilling state monitoring method, comprising the following steps: S1, move the drilling rig to the target area and open the three-way valve; S2, the drilling rig drives the second drill pipe, the drill pipe short connection and the first drill pipe to start drilling, drill out the annulus, and make the drill pipe short connection drill into the annulus; S3, close the three-way valve, determine the type of medium in the annulus, select a pressure sensor or a flow rate sensor according to the type of medium in the annulus, detect the pressure data or flow rate data in the annulus, and transmit the obtained pressure data or flow rate data back to the ground control terminal; S4. The ground control terminal monitors the directional drilling status through pressure data or flow rate data.
[0012] Another technical solution of the present invention is also characterized in that: The specific process of determining the medium type in the annulus in S3 is as follows: after the drill pipe is short-circuited and drilled into the annulus, the video sensor is turned on in real time to take an annulus picture, and the annulus picture data is transmitted to the computer in real time. The computer determines the type of the filling medium in the annulus based on the picture taken by the video sensor.
[0013] In S3, a pressure sensor or a flow rate sensor is selected to detect the pressure data or flow rate data in the annulus. The specific process is: if the medium in the annulus is gas, the pressure data in the annulus is obtained by using a pressure sensor or the flow rate sensor is used to obtain the flow rate data in the annulus; if the medium in the annulus is liquid, the flow rate sensor is used to obtain the flow rate data in the annulus.
[0014] The specific process of S4 is: the measured annular pressure value is compared with the empirical value of the annular pressure value preset in the PLC for threshold judgment. If the threshold is exceeded, the sound and light alarm sounds an alarm and the extraction device is started; or the measured annular flow velocity value is compared with the empirical value of the annular flow velocity value preset in the PLC for threshold judgment. If the threshold is exceeded, the sound and light alarm sounds an alarm and the extraction device is started.
[0015] The beneficial effects of the present invention are: The directional drilling status monitoring device and monitoring method provided by the present invention can take pictures of the annulus by setting a video sensor, and transmit the annulus picture data to a computer in real time. The computer determines the type of filling medium in the annulus according to the picture taken by the video sensor, and the pressure sensor can obtain the pressure data in the annulus. The flow rate sensor can be used to obtain the flow rate data in the annulus, and the threshold value judgment is performed respectively according to the empirical value of the annulus pressure value or the flow rate value preset in the PLC, and an alarm is sounded by an audible and visual alarm. The gas and liquid gushing out of the borehole are allowed to enter the gas extraction system pipeline network through the extraction device, so that the drilling rig operator can monitor the status of the borehole annulus in real time, thereby improving the safety of the operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of a directional drilling status monitoring device of the present invention.
[0017] In the figure, 1. the first drill pipe, 2. the drill bit, 3. the drill pipe short circuit, 4. the pressure sensor, 5. the flow rate sensor, 6. the instrument cabin, 7. the video sensor, 8. the second drill pipe, 9. the drilling rig water tail, 10. the communication cable, 11. the ground control terminal, 110. the computer, 111. the PLC, 112. the sound and light alarm, 113. the electric control valve, 12. the extraction device, 13. the drilling rig, 14. the annulus, 15. the three-way valve. DETAILED DESCRIPTION
[0018] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.
[0019] The directional drilling status monitoring device provided by the present invention is as follows: Figure 1As shown, it includes a first drill rod 1, one end of the first drill rod 1 is connected to a drill bit 2, the other end of the first drill rod 1 is connected to a drill rod short circuit 3, an information collection unit is arranged on the drill rod short circuit 3, the other end of the drill rod short circuit 3 is connected to a second drill rod 8, the other end of the second drill rod 8 is connected to a drilling rig water tail 9, a three-way valve 15 is arranged on the drilling rig water tail 9, the other end of the drilling rig water tail 9 is connected to a drilling rig 13, the information collection unit is connected to a communication cable 10 through a wire, and the communication cable 10 is connected to a ground control terminal 11 through a wire; the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8 are all hollow columnar, and the communication cable 10 is arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8; the information collection unit is arranged in the drill rod short circuit 3, and the information collection unit includes It includes a pressure sensor 4, a flow rate sensor 5 and an instrument cabin 6, a video sensor 7 is arranged in the instrument cabin 6, the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the communication cable 10 through wires; the communication cable 10 is a plurality of cables, the plurality of cables are independently and parallelly arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8, the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the plurality of cables through wires in a one-to-one correspondence; the ground control terminal 11 includes a computer 110, the computer 110 is connected to the PLC 111 through wires, the PLC 111 is respectively connected to the sound and light alarm 112 and the electric control valve 113 through wires, and the electric control valve 113 is connected to the extraction device 12 by signal. By setting up the video sensor 7, the annulus picture can be taken, and the annulus picture data can be transmitted to the computer 110 in real time. The computer 110 determines the type of the filling medium in the annulus based on the picture taken by the video sensor 7. The pressure sensor 4 can obtain the pressure data in the annulus. The flow rate sensor 5 can obtain the flow rate data in the annulus, and the threshold value judgment is performed respectively by the empirical value of the annulus pressure value or the flow rate value preset in the PLC111.
[0020] Example 1 The directional drilling status monitoring device proposed in this embodiment is as follows: Figure 1 As shown, it includes a first drill rod 1, one end of the first drill rod 1 is connected to a drill bit 2, the other end of the first drill rod 1 is connected to a drill rod short circuit 3, an information collection unit is provided on the drill rod short circuit 3, the other end of the drill rod short circuit 3 is connected to a second drill rod 8, the other end of the second drill rod 8 is connected to a drilling rig tail 9, a three-way valve 15 is provided on the drilling rig tail 9, the other end of the drilling rig tail 9 is connected to a drilling rig 13, the information collection unit is connected to a communication cable 10 through a wire, and the communication cable 10 is connected to a ground control terminal 11 through a wire.
[0021] Example 2 The directional drilling status monitoring device proposed in this embodiment is as follows: Figure 1As shown, it includes a first drill rod 1, one end of the first drill rod 1 is connected to a drill bit 2, the other end of the first drill rod 1 is connected to a drill rod short circuit 3, an information collection unit is arranged on the drill rod short circuit 3, the other end of the drill rod short circuit 3 is connected to a second drill rod 8, the other end of the second drill rod 8 is connected to a drilling rig water tail 9, a three-way valve 15 is arranged on the drilling rig water tail 9, the other end of the drilling rig water tail 9 is connected to a drilling rig 13, the information collection unit is connected to a communication cable 10 through a wire, and the communication cable 10 is connected to a ground control terminal 11 through a wire; the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8 are all hollow columnar, and the communication cable 10 is arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8; the information collection unit is arranged in the drill rod short circuit 3, the information collection unit includes a pressure sensor 4, a flow rate sensor 5 and an instrument cabin 6, a video sensor 7 is arranged in the instrument cabin 6, and the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the communication cable 10 through wires.
[0022] Example 3 The directional drilling status monitoring device proposed in this embodiment is as follows: Figure 1 As shown, it includes a first drill rod 1, one end of the first drill rod 1 is connected to a drill bit 2, the other end of the first drill rod 1 is connected to a drill rod short circuit 3, an information collection unit is arranged on the drill rod short circuit 3, the other end of the drill rod short circuit 3 is connected to a second drill rod 8, the other end of the second drill rod 8 is connected to a drilling rig water tail 9, a three-way valve 15 is arranged on the drilling rig water tail 9, the other end of the drilling rig water tail 9 is connected to a drilling rig 13, the information collection unit is connected to a communication cable 10 through a wire, and the communication cable 10 is connected to a ground control terminal 11 through a wire; the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8 are all hollow columns, and the communication cable 1 0 is arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8; the information acquisition unit is arranged in the drill rod short circuit 3, the information acquisition unit includes a pressure sensor 4, a flow rate sensor 5 and an instrument cabin 6, a video sensor 7 is arranged in the instrument cabin 6, the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the communication cable 10 through wires; the communication cable 10 is a plurality of cables, the plurality of cables are independently and parallelly arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8, the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the plurality of cables through wires in a one-to-one correspondence.
[0023] Example 4 The directional drilling status monitoring device proposed in this embodiment is as follows: Figure 1As shown, it includes a first drill rod 1, one end of the first drill rod 1 is connected to a drill bit 2, the other end of the first drill rod 1 is connected to a drill rod short circuit 3, an information collection unit is arranged on the drill rod short circuit 3, the other end of the drill rod short circuit 3 is connected to a second drill rod 8, the other end of the second drill rod 8 is connected to a drilling rig water tail 9, a three-way valve 15 is arranged on the drilling rig water tail 9, the other end of the drilling rig water tail 9 is connected to a drilling rig 13, the information collection unit is connected to a communication cable 10 through a wire, and the communication cable 10 is connected to a ground control terminal 11 through a wire; the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8 are all hollow columnar, and the communication cable 10 is arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8; the information collection unit is arranged in the drill rod short circuit 3, and the information collection unit includes It includes a pressure sensor 4, a flow rate sensor 5 and an instrument cabin 6, a video sensor 7 is arranged in the instrument cabin 6, the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the communication cable 10 through wires; the communication cable 10 is a plurality of cables, the plurality of cables are independently and parallelly arranged in the first drill rod 1, the drill rod short circuit 3 and the second drill rod 8, the pressure sensor 4, the flow rate sensor 5 and the video sensor 7 are respectively connected to the plurality of cables through wires in a one-to-one correspondence; the ground control terminal 11 includes a computer 110, the computer 110 is connected to the PLC 111 through wires, the PLC 111 is respectively connected to the sound and light alarm 112 and the electric control valve 113 through wires, and the electric control valve 113 is connected to the extraction device 12 by signal.
[0024] Example 5 The directional drilling state monitoring method proposed in this embodiment includes the following steps: S1, move the drilling rig 13 to the target area and open the three-way valve 15; S2, the drilling rig 13 drives the second drill rod 8, the drill rod short connection 3 and the first drill rod 1 to start drilling, drilling out the annulus 14, and making the drill rod short connection 3 drill into the annulus 14; S3, close the three-way valve 15, determine the type of medium in the annulus 14, select the pressure sensor 4 or the flow rate sensor 5 according to the type of medium in the annulus 14, detect the pressure data or flow rate data in the annulus 14, and transmit the obtained pressure data or flow rate data back to the ground control terminal 11; S4. The ground control terminal 11 monitors the directional drilling status through pressure data or flow rate data.
[0025] Example 6 The directional drilling state monitoring method proposed in this embodiment includes the following steps: S1, move the drilling rig 13 to the target area and open the three-way valve 15; S2, the drilling rig 13 drives the second drill rod 8, the drill rod short connection 3 and the first drill rod 1 to start drilling, drilling out the annulus 14, and making the drill rod short connection 3 drill into the annulus 14; S3, close the three-way valve 15, determine the type of medium in the annulus 14, select the pressure sensor 4 or the flow rate sensor 5 according to the type of medium in the annulus 14, detect the pressure data or flow rate data in the annulus 14, and transmit the obtained pressure data or flow rate data back to the ground control terminal 11; The specific process of judging the type of medium in the annulus 14 is as follows: after the drill pipe short circuit 3 drills into the annulus 14, the video sensor 7 is turned on in real time to take a picture of the annulus 14, and the picture data of the annulus 14 is transmitted to the computer 110 in real time, and the computer 110 judges the type of the filling medium in the annulus 14 according to the picture taken by the video sensor 7; The specific process of selecting the pressure sensor 4 or the flow rate sensor 5 to detect the pressure data or the flow rate data in the annulus 14 is as follows: if the medium in the annulus 14 is gas, the pressure data in the annulus 14 is obtained by using the pressure sensor 4 or the flow rate sensor 5 is used to obtain the flow rate data in the annulus 14; if the medium in the annulus 14 is liquid, the flow rate sensor 5 is used to obtain the flow rate data in the annulus 14; S4, the ground control terminal 11 monitors the directional drilling status through pressure data or flow rate data; The specific process is: the measured pressure value in the annulus 14 is compared with the empirical value of the annulus 14 pressure value preset in PLC111 for threshold judgment. If the threshold is exceeded, the sound and light alarm 112 will sound an alarm and start the extraction device 12, or the measured flow rate value in the annulus 14 is compared with the empirical value of the annulus 14 flow rate value preset in PLC111 for threshold judgment. If the threshold is exceeded, the sound and light alarm 112 will sound an alarm and start the extraction device 12.
Claims
1. A directional drilling status monitoring device, characterized in that: The invention comprises a first drill rod (1), one end of the first drill rod (1) is connected to a drill bit (2), the other end of the first drill rod (1) is connected to a drill rod short circuit (3), an information collection unit is provided on the drill rod short circuit (3), the other end of the drill rod short circuit (3) is connected to a second drill rod (8), the other end of the second drill rod (8) is connected to a drilling rig tail (9), the drilling rig tail (9) is provided with a three-way valve (15), the other end of the drilling rig tail (9) is connected to a drilling rig (13), the information collection unit is connected to a communication cable (10) via a wire, and the communication cable (10) is connected to a ground control terminal (11) via a wire.
2. The directional drilling status monitoring device according to claim 1, characterized in that: The first drill rod (1), the drill rod short circuit (3) and the second drill rod (8) are all in the shape of hollow columns, and the communication cable (10) is arranged inside the first drill rod (1), the drill rod short circuit (3) and the second drill rod (8).
3. The directional drilling status monitoring device according to claim 2, characterized in that: The information acquisition unit is arranged in the drill pipe short circuit (3), and comprises a pressure sensor (4), a flow rate sensor (5) and an instrument cabin (6). A video sensor (7) is arranged in the instrument cabin (6). The pressure sensor (4), the flow rate sensor (5) and the video sensor (7) are respectively connected to the communication cable (10) via wires.
4. The directional drilling status monitoring device according to claim 3, characterized in that: The communication cable (10) is a plurality of cables, and the plurality of cables are independently and parallelly arranged in the first drill rod (1), the drill rod short circuit (3) and the second drill rod (8). The pressure sensor (4), the flow rate sensor (5) and the video sensor (7) are respectively connected to the plurality of cables in a one-to-one correspondence via wires.
5. The directional drilling status monitoring device according to claim 4, characterized in that: The ground control terminal (11) comprises a computer (110), the computer (110) being connected to a PLC (111) via a wire, the PLC (111) being connected to an audible and visual alarm (112) and an electrically controlled valve (113) via wires, respectively, and the electrically controlled valve (113) being signal-connected to a pumping device (12).
6. A directional drilling state monitoring method, characterized in that: Using the directional drilling status monitoring device as claimed in claim 5 comprises the following steps: S1, move the drilling rig (13) to the target area and open the three-way valve (15); S2, the drilling machine (13) drives the second drill rod (8), the drill rod short connection (3) and the first drill rod (1) to start drilling, drill out the annulus (14), and make the drill rod short connection (3) drill into the annulus (14); S3, closing the three-way valve (15), determining the type of medium in the annulus (14), selecting a pressure sensor (4) or a flow rate sensor (5) according to the type of medium in the annulus (14), detecting pressure data or flow rate data in the annulus (14), and transmitting the obtained pressure data or flow rate data back to the ground control terminal (11); S4. The ground control terminal (11) monitors the directional drilling status through pressure data or flow rate data.
7. The directional drilling status monitoring method according to claim 6, characterized in that: The specific process of determining the type of medium in the annulus (14) described in S3 is as follows: after the drill pipe short circuit (3) is drilled into the annulus (14), the video sensor (7) is turned on in real time to take a picture of the annulus (14), and the picture data of the annulus (14) is transmitted to the computer (110) in real time. The computer (110) determines the type of the filling medium in the annulus (14) based on the picture taken by the video sensor (7).
8. The directional drilling status monitoring method according to claim 6, characterized in that: The specific process of selecting the pressure sensor (4) or the flow rate sensor (5) to detect the pressure data or the flow rate data in the annulus (14) described in S3 is as follows: if the medium in the annulus (14) is gas, the pressure sensor (4) is used to obtain the pressure data in the annulus (14) or the flow rate sensor (5) is used to obtain the flow rate data in the annulus (14); if the medium in the annulus (14) is liquid, the flow rate sensor (5) is used to obtain the flow rate data in the annulus (14).
9. The directional drilling status monitoring method according to claim 6, characterized in that: The specific process of S4 is: a threshold value judgment is performed between the measured pressure value in the annulus (14) and the empirical value of the pressure value of the annulus (14) preset in the PLC (111); if the threshold value is exceeded, the sound and light alarm (112) sounds an alarm and starts the extraction device (12); or a threshold value judgment is performed between the measured flow rate value in the annulus (14) and the empirical value of the flow rate value of the annulus (14) preset in the PLC (111); if the threshold value is exceeded, the sound and light alarm (112) sounds an alarm and starts the extraction device (12).