Drilling machine power mouse hole automatic control system
Through the combination of PLC controller and multiple sensors, automatic control of the powered rathole is achieved, which solves the problem of equipment damage and low efficiency caused by inconsistent drill pipe length, and improves drilling efficiency and safety.
Patent Information
- Application Number
- CN202422975344.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-04
- Publication Date
- 2025-10-14
- Estimated Expiration
- 2034-12-04
AI Technical Summary
In the existing technology, when facing drill pipes of different lengths, the power rathole cannot automatically adjust its position, resulting in damage to the equipment or failure to receive the drill pipe, affecting drilling efficiency and safety.
The PLC controller is combined with multiple sensors and hydraulic systems to realize the automatic control of the power rathole, including the through-beam sensor, ultrasonic ranging sensor, bottom proximity switch, supporting clamp pressure sensor and lifting cylinder displacement sensor. The position and height of the rathole are automatically adjusted through the signal line and hydraulic pipeline connection.
It realizes automatic adjustment according to the drill pipe length, quickly and smoothly catches the drill pipe and moves it up to the appropriate range, improves drilling efficiency, and reduces manual intervention and equipment safety hazards.
Smart Images
Figure CN223434331U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of drilling, specifically relates to a rig power mouse hole automatic control system. BACKGROUND
[0002] The power mouse hole is an important component of the rig equipment and plays a pivotal role in the processes of rig stand-up and rig knock-down. The power mouse hole is used to receive the single drill pipe or the drill pipe stand from other equipment. If the single drill pipe is received, the mouse hole needs to be lowered to a relatively low position after the handover is completed, so that the upper end of the single drill pipe is lower than the rig floor, leaving space for subsequent operations. If the stand is received, the mouse hole needs to be lowered to a relatively low position after the iron roughneck unthreads the drill pipe, so that the upper end of the single drill pipe is lower than the rig floor, leaving space for subsequent operations. Meanwhile, during the stand-up, the mouse hole needs to be raised to extend the single drill pipe in the mouse hole to a suitable interval height above the rig floor, and the single drill pipe grabbed by other equipment is connected to the single drill pipe in the mouse hole, and then the iron roughneck threads the single drill pipe to form the drill pipe stand.
[0003] In the prior art, the power mouse hole is not controlled well, which leads to the following problems:
[0004] Since the lengths of the oil drill pipes are inconsistent, the maximum length deviation is about 600 mm. If the power mouse hole receives the single pipe or the stand from other equipment at a fixed position or stroke, two undesirable outcomes will occur. First, if the power mouse hole receives the single pipe at a relatively high position, the power mouse hole will collide with other equipment through the drill pipe, causing damage to the equipment. Second, if the power mouse hole receives the single pipe at a relatively low position, the power mouse hole cannot receive the single pipe for the short drill pipe, and if other equipment directly releases the single pipe, the drill pipe will fall and damage the mouse hole.
[0005] When the mouse hole holds the drill pipe and raises it for the iron roughneck to thread, if the mouse hole raises at a fixed height, the drill pipe may exceed the maximum threading height of the iron roughneck for the long drill pipe, or the drill pipe may be lower than the threading height of the iron roughneck for the short drill pipe, and the iron roughneck cannot thread in the above cases.
[0006] In the prior art, the height of the mouse hole needs to be manually adjusted when the lengths of the drill pipes are inconsistent. If the speed of manual adjustment is too high, the impact between the equipment will be large, and the mouse hole cannot be adjusted to the appropriate position. If the speed of manual adjustment is too low, a lot of time will be wasted, which seriously affects the drilling efficiency. UTILITY MODEL CONTENTS
[0007] To solve the problems in the prior art, the present application discloses a rig power mouse hole automatic control system, which comprises:
[0008] A driller's operating panel, a PLC controller, a through-beam sensor, an ultrasonic distance measuring sensor, a bottom proximity switch, a supporting clamp pressure sensor, a lifting cylinder displacement sensor, a supporting clamp switch valve, and a lifting cylinder proportional valve; the through-beam sensor, the ultrasonic distance measuring sensor, the bottom proximity switch, the supporting clamp pressure sensor, the lifting cylinder displacement sensor, the supporting clamp switch valve, and the lifting cylinder proportional valve are respectively connected to the PLC controller; the PLC controller is connected to the driller's operating panel.
[0009] In the improved solution, it also includes a rat hole lifting cylinder and a hydraulic station, and the hydraulic interface of the lifting cylinder proportional valve is connected to the rat hole lifting cylinder and the hydraulic station respectively through hydraulic pipelines.
[0010] In the improved solution, it also includes a supporting clamp oil cylinder, and the hydraulic interface of the supporting clamp switch valve is connected to the supporting clamp oil cylinder of the mouse hole and the hydraulic station through hydraulic pipelines.
[0011] In the improved solution, the through-beam sensor is a laser through-beam sensor, which includes a receiver and a transmitter. The through-beam sensor is installed below the drill floor and in the center of the rathole. The through-beam sensor is connected to the PLC controller through a signal line, which is used to detect whether there is a drill rod.
[0012] In the improved solution, the ultrasonic ranging sensor is installed 500-700 mm above the mousehole tray. The ultrasonic ranging sensor is connected to the PLC controller through a signal line to detect whether the drill rod enters the area.
[0013] In the improved solution, the bottom proximity switch is installed at the bottom end of the rathole tray, and the bottom proximity switch is connected to the PLC controller through a signal line to detect whether the drill rod has contacted the rathole tray.
[0014] In the improved solution, the supporting clamp pressure sensor is installed on the supporting clamp hydraulic valve block, and the supporting clamp pressure sensor is connected to the PLC controller through a signal line to detect the opening and closing status of the supporting clamp.
[0015] In the improved solution, the lifting cylinder displacement sensor is installed in the lifting cylinder, and the lifting cylinder displacement sensor is connected to the PLC controller through a signal line to detect the position of the rathole tray.
[0016] In the improved solution, the support clamp switch valve is connected to the PLC controller through a signal line, and the support clamp is controlled by the PLC controller to open and close.
[0017] In the improved solution, the support clamp switch valve is connected to the PLC controller through a signal line, and the support clamp is controlled by the PLC controller to open and close.
[0018] The rat hole of the utility model can quickly and smoothly catch the drill rod according to different drill rod lengths; the control accuracy is high, and the rat hole can quickly and smoothly move the drill rod to a reasonable range of the iron roughneck's tie-up height according to different drill rod lengths; the drilling work efficiency is increased, the intervention of manual drilling control is reduced, and the safety hazards of drilling equipment are reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a composition diagram of the control system of this application;
[0020] Figure 2 This is a schematic diagram of the sensor installation position of this application. Figure 2 The left side is the main view. Figure 2 The right side is the right side view;
[0021] Figure 3 3 is a schematic diagram of the rat hole drill rod connection operation state of the present application, the left picture is before the drill rod is connected, the middle picture is in the process of connecting the drill rod, and the right picture is completed when the drill rod is connected;
[0022] Figure 4 This is the control flow chart of the rat hole drill pipe connection of the present application;
[0023] Figure 5 This is a schematic diagram of the rathole drill rod moving out of the drilling platform of the present application. The left picture shows the drill rod before moving up, the middle picture shows the drill rod in the process of moving up, and the right picture shows the drill rod being completed out of the drilling platform;
[0024] Figure 6 This is the control flow chart of the rathole drill rod out of the drilling platform of the present application;
[0025] In the figure: 1. Drilling table; 2. Through-beam sensor; 3. Support clamp pressure sensor; 4. Ultrasonic ranging sensor; 5. Bottom proximity switch; 6. Lift cylinder displacement sensor. DETAILED DESCRIPTION
[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0027] Reference Figures 1-5The utility model provides an automatic control system for a drilling rig powered rathole, comprising: a driller's operating screen, a PLC controller, a through-beam sensor 2, an ultrasonic ranging sensor 4, a bottom proximity switch 5, a supporting clamp pressure sensor 3, a lifting cylinder displacement sensor 6, a supporting clamp switch valve, and a lifting cylinder proportional valve; the through-beam sensor 2, the ultrasonic ranging sensor 4, the bottom proximity switch 5, the supporting clamp pressure sensor 3, the lifting cylinder displacement sensor 6, the supporting clamp switch valve, and the lifting cylinder proportional valve are respectively connected to the PLC controller; the PLC controller is connected to the driller's operating screen.
[0028] The power rathole automatic control system also includes a rathole lifting cylinder and a hydraulic station. The hydraulic interface of the lifting cylinder proportional valve is connected to the rathole lifting cylinder and the hydraulic station respectively through hydraulic pipelines.
[0029] The power rathole automatic control system also includes a supporting clamp oil cylinder, and the hydraulic interface of the supporting clamp switch valve is connected to the supporting clamp oil cylinder of the rathole and the hydraulic station through hydraulic pipelines.
[0030] In a more specific embodiment, the through-beam sensor 2 is a laser through-beam sensor comprising a receiver and a transmitter, which are positioned relative to each other. The through-beam sensor is installed below the drill floor 1 and directly in the center of the rathole. The through-beam sensor is connected to the PLC controller via a signal line, detecting the presence of a drill rod and transmitting a signal to the PLC controller.
[0031] In a more specific solution, the ultrasonic ranging sensor 4 is installed at a position 500-700 mm above the rat hole tray, and in a more specific solution, it is installed at a position 600 mm above the rat hole tray; the ultrasonic ranging sensor is connected to the PLC controller through a signal line to detect whether the drill rod enters the area and send a signal to the PLC controller.
[0032] like Figure 2 As shown, the bottom proximity switch 5 is installed at the bottom end of the mousehole tray. The bottom proximity switch is connected to the PLC controller through a signal line to detect whether the drill rod has touched the mousehole tray.
[0033] like Figure 2 As shown, the supporting clamp pressure sensor 3 is installed on the supporting clamp hydraulic valve block (supporting clamp switch valve). The supporting clamp pressure sensor 3 is connected to the PLC controller through a signal line to detect the opening and closing status of the supporting clamp.
[0034] The lifting cylinder displacement sensor 6 is installed in the lifting cylinder. The lifting cylinder displacement sensor is connected to the PLC controller through a signal line and is used to detect the position of the mouse hole tray.
[0035] More specifically, the supporting clamp switch valve is connected with the PLC controller through a signal line, and is controlled by the PLC controller to open and close the supporting clamp.
[0036] As shown in Figure 3 and Figure 4 , the operation method of the control system of the present application is further described in combination with the "mouse hole connecting drill rod function", which comprises the following steps:
[0037] S1: issue a mouse hole connecting drill rod start command, and the mouse hole connecting drill rod starts;
[0038] S2: according to the signal received by the against-the-sensor, it is judged whether the against-the-sensor is broken by the drill rod, if the against-the-sensor is not broken by the drill rod, it is fed back that there is no drill rod to execute the function; if the against-the-sensor is broken by the drill rod, it is judged whether the ultrasonic ranging sensor detects the drill rod in front;
[0039] S3: if the ultrasonic ranging sensor does not detect the drill rod, the mouse hole lifting oil cylinder is automatically controlled to go up at full speed; if the ultrasonic ranging sensor detects the drill rod in front, the mouse hole lifting oil cylinder is automatically controlled to go up at slow speed;
[0040] S3: it is judged whether the bottom proximity switch is actuated by the drill rod, if not, the mouse hole lifting oil cylinder is automatically controlled to continue to go up, if actuated, the mouse hole lifting oil cylinder is automatically controlled to stop;
[0041] S4: the supporting clamp is automatically controlled to close and hold the drill rod, the pressure of the supporting clamp pressure sensor reaches the closing state, the mouse hole connecting drill rod function is executed, and after the transfer with other equipment is completed, the mouse hole is lowered to the low position to leave the working space.
[0042] As shown in Figure 5 and 6 , the use method of the control system of the present application is further described in combination with the "mouse hole connecting drill rod function", which comprises the following steps:
[0043] S1: issue a drill rod out of the drilling platform start command; automatically control the mouse hole lifting oil cylinder to go up at full speed;
[0044] S2: it is judged whether the against-the-sensor is broken by the drill rod, if not, the mouse hole lifting oil cylinder continues to go up at full speed, and at the moment when the against-the-sensor is broken by the drill rod (the signal rising edge), the specified positioning value of the oil cylinder is automatically calculated;
[0045] S3: the running speed of the lifting oil cylinder is automatically controlled to smoothly reach the specified positioning value, and the mouse hole connecting drill rod function is executed.
[0046] This invention addresses the existing problem of ratholes being unable to automatically adapt to the length of drill rods to receive them, or to automatically raise them to a suitable height for the roughneck to make them, due to large variations in drill rod length. This invention proposes an automatic control system for a drilling rig powered rathole. The rathole can quickly and smoothly receive drill rods according to different drill rod lengths. It can also quickly and smoothly raise the drill rod to a suitable height range for the roughneck to make them, depending on the drill rod length. This increases drilling efficiency, reduces the need for manual control, and mitigates safety risks associated with drilling equipment.
[0047] like Figure 3 and Figure 4 As shown, the control system and method of the present invention are further described in conjunction with the "rat hole drill rod connection function". The rat hole drill rod connection includes the following steps:
[0048] 1) Issue the command to start connecting the rat hole to the drill pipe;
[0049] 2) Determine whether the through-beam sensor 2 is interrupted by the drill rod. If the through-beam sensor 2 is not interrupted by the drill rod, the function will not be executed if the drill rod is not interrupted.
[0050] 3) If the through-beam sensor 2 is interrupted by the drill rod, it is determined whether the ultrasonic ranging sensor 4 detects a drill rod in front. If no drill rod is detected, the rat hole lifting cylinder is automatically controlled to move upward at full speed;
[0051] 4) If the ultrasonic ranging sensor 4 detects a drill rod in front, it automatically controls the rat hole lifting cylinder to move upward slowly;
[0052] 5) Determine whether the bottom contact proximity switch 5 has caught the drill rod and has actuated. If not, the rat hole lifting cylinder is automatically controlled to continue to move upward. If so, the rat hole lifting cylinder is automatically controlled to stop.
[0053] 6) Automatically control the support clamp to close and hold the drill pipe, detect that the pressure of the support clamp pressure sensor 3 reaches the closed state, and the rat hole drill pipe connection function is completed. After the handover with other equipment is completed, the rat hole drops to a low position to make room for the work.
[0054] like Figure 5 and Figure 6 As shown, the control system and method of the present invention are further described in combination with the "rat hole drill rod out drilling platform 1 function". The rat hole drill rod out drilling platform 1 includes the following steps:
[0055] 1) Send the drill pipe out of the drilling platform 1 start command;
[0056] 2) Automatically control the rat hole lifting cylinder to move upward at full speed;
[0057] 3) Determine whether the through-beam sensor 2 is interrupted by the drill rod. If not, the rathole lifting cylinder continues to move upward at full speed. At the moment when the through-beam sensor 2 is interrupted by the drill rod (signal rising edge), the positioning value specified by the cylinder is automatically calculated;
[0058] The operating speed of the lifting cylinder is automatically controlled to smoothly reach the specified positioning value, and the rat hole drill rod out of the drilling platform 1 function is completed.
[0059] The specific procedures for running this system are prior art, and the present invention can be well implemented according to the above embodiments. It is worth noting that based on the above structural design, to solve the same technical problem, even if some insubstantial changes or modifications are made to the present invention, the essence of the technical solution adopted is still the same as that of the present invention, and therefore it should also be within the scope of protection of the present invention.
Claims
1. A drilling rig powered rathole automatic control system, characterized in that: include: A driller's operating screen, a PLC controller, a through-beam sensor (2), an ultrasonic distance sensor (4), a bottom proximity switch (5), a support clamp pressure sensor (3), a lifting cylinder displacement sensor (6), a support clamp switch valve, and a lifting cylinder proportional valve; the through-beam sensor (2), the ultrasonic distance sensor (4), the bottom proximity switch (5), the support clamp pressure sensor (3), the lifting cylinder displacement sensor (6), the support clamp switch valve, and the lifting cylinder proportional valve are respectively connected to the PLC controller; and the PLC controller is connected to the driller's operating screen.
2. The drilling rig powered rathole automatic control system according to claim 1 is characterized in that: It also includes a rat hole lifting oil cylinder and a hydraulic station. The hydraulic interfaces of the lifting oil cylinder proportional valve are respectively connected to the rat hole lifting oil cylinder and the hydraulic station through hydraulic pipelines.
3. The drilling rig powered rathole automatic control system according to claim 2, characterized in that: It also includes a supporting clamp oil cylinder, and the hydraulic interface of the supporting clamp switch valve is respectively connected to the supporting clamp oil cylinder of the mouse hole and the hydraulic station through hydraulic pipelines.
4. The drilling rig powered rathole automatic control system according to claim 3, characterized in that: The through-beam sensor is a laser through-beam sensor, which includes a receiver and a transmitter. The through-beam sensor is installed below the drill floor and in the center of the rathole. The through-beam sensor is connected to the PLC controller through a signal line, which is used to detect whether there is a drill rod.
5. The drilling rig powered rathole automatic control system according to claim 4, characterized in that: The ultrasonic ranging sensor is installed at a position 500-700 mm above the mousehole tray. The ultrasonic ranging sensor is connected to the PLC controller through a signal line to detect whether the drill rod enters the area.
6. The drilling rig powered rathole automatic control system according to claim 5, characterized in that: The bottom contact proximity switch is installed at the bottom end of the mousehole tray. The bottom contact proximity switch is connected to the PLC controller through a signal line and is used to detect whether the drill rod has contacted the mousehole tray.
7. The automatic control system for rathole drilling rig power according to claim 6, characterized in that: The supporting clamp pressure sensor is installed on the supporting clamp hydraulic valve block, and the supporting clamp pressure sensor is connected to the PLC controller through a signal line to detect the opening and closing status of the supporting clamp.
8. The automatic control system for rathole drilling rig power according to claim 7, characterized in that: The lifting cylinder displacement sensor is installed in the lifting cylinder, and the lifting cylinder displacement sensor is connected to the PLC controller through a signal line to detect the position of the mouse hole tray.
9. The drilling rig powered rathole automatic control system according to claim 8, characterized in that: The support clamp switch valve is connected to the PLC controller through a signal line, and is controlled by the PLC controller to open and close the support clamp.