Drilling automation well control post instrument

Abstract

The utility model relates to the technical field of drilling well control safety protection, especially relates to a kind of drilling automation well control post-guard instrument, including the bottom frame being arranged in the post-guard house and the measuring module being arranged in drilling fluid tank, the upper end of bottom frame is provided with support mechanism, the periphery of support mechanism is provided with assembly frame and bracket, display is fixedly installed in the front side of assembly frame, data collector and audible-visual alarm are fixedly installed in the upper end of bracket, measuring module and data collector establish wireless communication connection, data collector passes through and display and audible-visual alarm establish two-way communication connection;The utility model determines the liquid level in drilling fluid tank in real time by measuring module, and data is transmitted to data collector, data collector can store determination data, and data is directly shown by display, when determination data is abnormal, audible-visual alarm can issue audible-visual alarm, and remind the post-guard personnel in post-guard house to handle in time.

Description

Technical Field

[0001] This utility model relates to the field of drilling well control safety protection technology, and in particular to an automated drilling well control station. Background Technology

[0002] Well control safety during drilling operations is a crucial aspect of oil and gas exploration and development. Currently, fluid level monitoring typically utilizes float level gauges, relying on personnel to observe changes in the float level gauge in real time to meet the fluid level monitoring requirements of drilling fluid.

[0003] Currently, the only solutions are to add a drilling fluid volume display module to the mechanical float level gauge or to install a data display module in the logging room or driller's room. However, the staff cannot intuitively obtain key parameters such as the cumulative volume and leakage of drilling fluid from multiple circulation tanks. This results in high labor intensity, especially during complex and emergency situations, which seriously affects complex well control procedures such as well control and post-effect removal.

[0004] Therefore, to address the above issues, an automated drilling control station can be designed. By installing a portable data processing, display, and control unit in the station room, the problem of station personnel being unable to view data directly is solved, effectively reducing the workload of station personnel and enabling rapid response in complex and urgent situations. Utility Model Content

[0005] To overcome the problem that current well control systems only add a drilling fluid volume display module to the mechanical float level gauge or configure a data display module in the logging room or driller's room, the on-duty personnel cannot intuitively obtain key parameters such as the cumulative volume and leakage of drilling fluid in multiple circulation tanks, resulting in high labor intensity.

[0006] The technical solution of this utility model is as follows: an automated drilling control station includes a base frame installed in the station room and a measuring module installed in the drilling fluid tank. It also includes a support mechanism installed on the upper end of the base frame. An assembly frame and a bracket are arranged around the support mechanism. A display is fixedly installed on the front side of the assembly frame. A data acquisition device and an audible and visual alarm are fixedly installed on the upper end of the bracket. The measuring module and the data acquisition device establish a wireless communication connection. The data acquisition device establishes a two-way communication connection with the display and the audible and visual alarm.

[0007] Preferably, the base frame serves as the structural foundation within the work station, facilitating use by personnel. It provides stable support and a mounting platform for the assembly frame and bracket. The assembly frame and bracket respectively handle the modular installation of the monitor, data acquisition unit, and audible and visual alarm. The measurement module measures the fluid level in the drilling fluid tank in real time and transmits the data to the data acquisition unit. The data acquisition unit stores the measured data and displays it visually on the monitor. When abnormalities occur in the measured data, the audible and visual alarm will sound, alerting personnel to take timely action.

[0008] Preferably, a light shield is rotatably connected inside the mounting frame, the connection between the light shield and the mounting frame is damped, an adjustment knob is fixedly installed on one side of the light shield, and the light shield is located on the periphery of the display.

[0009] Preferably, the support mechanism includes an outer sleeve rod fixedly installed on the upper end of the base frame, a support rod slidably connected inside the outer sleeve rod, and several reserved holes are evenly and linearly opened along the outer periphery of the outer sleeve rod.

[0010] Preferably, the assembly frame is fixedly installed on the periphery of the support rod, and the bracket is fixedly installed on the periphery of the outer rod.

[0011] Preferably, four sets of evenly arranged casters are fixedly installed at the lower end of the base frame.

[0012] Preferably, four sets of internally threaded assembly blocks are fixedly installed on the outer perimeter of the base frame, and the internal threads of the internally threaded assembly blocks are connected to threaded feet.

[0013] As a preferred option, the audible and visual alarm integrates a three-color warning light group, which corresponds to red, green and yellow status indications respectively.

[0014] Preferably, the measurement module includes a mechanical float level gauge and a control box. The mechanical float level gauge is fixedly installed inside the drilling fluid tank, and the control box is fixedly installed on the upper end of the mechanical float level gauge.

[0015] Preferably, the control box integrates a data transmitter and a pull-rope encoder, with the measuring end of the pull-rope encoder connected to the upper end of the float rod of the mechanical float level gauge.

[0016] Preferably, the pull-cord encoder has an integrated spring-type pull-cord recovery structure with a pull-cord recovery force of <450g.

[0017] The beneficial effects of this utility model are: 1. The drilling fluid level in the tank is measured in real time using a mechanical float level gauge and a pull-rope encoder. The measured data is transmitted to the data acquisition unit via a data transmitter. The data acquisition unit can store the measured data and display it on a monitor. When the measured data is abnormal, an audible and visual alarm will be triggered to remind the on-duty personnel to handle the situation in time, which effectively reduces the workload of the on-duty personnel. It can also respond quickly in handling complex and emergency situations. Through modular integrated design, the data acquisition unit, monitor and audible and visual alarm are integrated into a portable base frame structure, which ensures the convenience of moving and transferring the equipment as a whole. 2. The drilling fluid level in the tank is measured in real time by using a mechanical float level gauge in conjunction with a pull-rope encoder. The pull-rope encoder has an integrated spring-type pull-rope retrieval structure with a pull-rope retrieval force of <450g. This ensures automatic pull-rope retrieval while effectively buffering the impact and stretching of the float level gauge when it fluctuates up and down. It effectively filters out the fluctuations and vibrations of the float scale caused by rapid flow and agitation of the liquid level in the drilling fluid tank, reduces raw interference data, ensures the stability of data acquisition, and reduces the error variation of statistical data. Attached Figure Description

[0018] Figure 1 The diagram shown is a first three-dimensional structural schematic of the drilling automation well control station of this utility model; Figure 2 The diagram shown is a second three-dimensional structural schematic of the drilling automation well control station of this utility model; Figure 3 The diagram shown is a three-dimensional structural schematic of the measurement module of the drilling automation well control station of this utility model. Figure 4 The diagram shown is a three-dimensional structural representation of the internal structure of the control box of the drilling automation well control station of this utility model. Explanation of reference numerals in the attached drawings: 1. Base frame; 2. Assembly frame; 3. Display; 4. Bracket; 5. Data acquisition unit; 6. Audible and visual alarm; 7. Light shield; 701. Adjustment knob; 801. Outer rod; 802. Support rod; 803. Reserved hole; 9. Caster wheel; 1001. Internal thread assembly block; 1002. Threaded support foot; 1101. Mechanical float level gauge; 1102. Control box; 1201. Data transmitter; 1202. Pull rope encoder. Detailed Implementation

[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0020] Example 1 Please see Figure 1 and Figure 3This utility model provides an embodiment: an automated drilling control station, including a base frame 1 installed in the station room and a measuring module installed in the drilling fluid tank, and a support mechanism installed on the upper end of the base frame 1. An assembly frame 2 and a bracket 4 are arranged around the support mechanism. A display 3 is fixedly installed on the front side of the assembly frame 2, and a data acquisition unit 5 and an audible and visual alarm 6 are fixedly installed on the upper end of the bracket 4. The measuring module and the data acquisition unit 5 establish a wireless communication connection, and the data acquisition unit 5 establishes a bidirectional communication connection with the display 3 and the audible and visual alarm 6. The base frame 1 serves as the structural support. The basic structure is located inside the work station for easy access by personnel. It provides stable support and mounting carrier for the assembly frame 2 and bracket 4. The assembly frame 2 and bracket 4 respectively undertake the modular installation functions of the display 3, data acquisition unit 5, and audible and visual alarm 6. The measurement module measures the fluid level in the drilling fluid tank in real time and transmits the data to the data acquisition unit 5. The data acquisition unit 5 can store the measurement data and display it intuitively on the display 3. When the measurement data is abnormal, the audible and visual alarm 6 can issue an audible and visual alarm to remind the personnel to handle the situation in a timely manner.

[0021] Please see Figure 1 and Figure 2In this embodiment, a light shield 7 is rotatably connected inside the assembly frame 2. The connection between the light shield 7 and the assembly frame 2 is damped. An adjustment knob 701 is fixedly installed on one side of the light shield 7, and the light shield 7 is located on the periphery of the display 3. The light shield 7 can effectively suppress ambient light interference and improve the visibility of the display 3. By rotating the adjustment knob 701, the light shield 7 can be infinitely adjusted at multiple angles to adapt to external interference light from different irradiation directions. The support mechanism includes an outer rod 8 fixedly installed on the upper end of the base frame 1. 01. A support rod 802 is slidably connected inside the outer sleeve rod 801. Several pre-drilled holes 803 are evenly and linearly opened along the axial direction on the outer periphery of the outer sleeve rod 801. The assembly frame 2 is fixedly installed on the outer periphery of the support rod 802, and the bracket 4 is fixedly installed on the outer periphery of the outer sleeve rod 801. The assembly frame 2 and the bracket 4 are installed and supported by the outer sleeve rod 801 and the support rod 802, respectively. The support rod 802 slides inside the outer sleeve rod 801 and is fixed by fasteners installed through the through holes. Thus, it can be installed according to the actual seating situation. Adjusting the height of the monitor 3 according to the height and build of the personnel on duty improves the comfort of the personnel's observation and operation. Four sets of evenly arranged casters 9 are fixedly installed at the lower end of the base frame 1. Four sets of internally threaded assembly blocks 1001 are fixedly installed on the outer perimeter of the base frame 1. The internal threads of the internally threaded assembly blocks 1001 are connected to threaded feet 1002. The casters 9 facilitate the transfer of the base frame 1 and the equipment mounted on it, effectively improving portability. After being transferred to a suitable position, the threaded feet 1002 are adjusted to connect to the internally threaded assembly blocks. The internal rotation of the mounting block 1001 can lift the base frame 1, causing the casters 9 to leave the ground and providing stable support for the base frame 1. Rotating and fine-tuning different threaded support feet 1002 can also level the base frame 1, ensuring stable support. The audible and visual alarm 6 integrates a three-color warning light group, corresponding to red, green, and yellow status indicators respectively. The three-color light alerts the personnel on duty: green indicates normal operation, red indicates a high-limit alarm, and yellow indicates a low-limit alarm, providing a more intuitive and clear indication and ensuring timely response from personnel.

[0022] Example 2 Please see Figure 1 and Figure 3 This utility model provides another embodiment: an automated drilling control station includes a base frame 1 installed in the station room and a measuring module installed in the drilling fluid tank. It also includes a support mechanism installed on the upper end of the base frame 1. An assembly frame 2 and a bracket 4 are arranged around the support mechanism. A display 3 is fixedly installed on the front side of the assembly frame 2. A data acquisition device 5 and an audible and visual alarm 6 are fixedly installed on the upper end of the bracket 4. The measuring module and the data acquisition device 5 establish a wireless communication connection. The data acquisition device 5 establishes a two-way communication connection with the display 3 and the audible and visual alarm 6.

[0023] Please see Figure 3 and Figure 4In this embodiment, the control box 1102 integrates a data transmitter 1201 and a pull-rope encoder 1202. The measuring end of the pull-rope encoder 1202 is connected to the upper end of the float rod of the mechanical float level gauge 1101. The pull-rope encoder 1202 integrates a spring-type pull-rope retrieval structure with a pull-rope retrieval force of < 450g. The pull-rope encoder 1202 can accurately capture the displacement of the float of the mechanical float level gauge 1101, thereby ensuring the continuity and reliability of level monitoring. The measured data is wirelessly transmitted to the data acquisition unit 5 in real time through the data transmitter 1201. The integrated spring-type pull-rope retrieval structure effectively buffers the impact and stretching of the float of the mechanical float level gauge 1101 when it fluctuates up and down without affecting the normal floating of the float. It effectively filters out the fluctuations and vibrations of the float scale caused by the rapid flow and stirring of the liquid surface in the drilling fluid tank, reduces the original interference data, ensures the stability of data acquisition, and reduces the error variation of statistical data.

[0024] Example 3 Optionally, this utility model provides another embodiment: Please see Figure 1 and Figure 3 This utility model provides another embodiment: an automated drilling control station includes a base frame 1 installed in the station room and a measuring module installed in the drilling fluid tank. It also includes a support mechanism installed on the upper end of the base frame 1. An assembly frame 2 and a bracket 4 are arranged around the support mechanism. A display 3 is fixedly installed on the front side of the assembly frame 2. A data acquisition device 5 and an audible and visual alarm 6 are fixedly installed on the upper end of the bracket 4. The measuring module and the data acquisition device 5 establish a wireless communication connection. The data acquisition device 5 establishes a two-way communication connection with the display 3 and the audible and visual alarm 6.

[0025] Implementation Background: To address the lack of monitoring of key parameters such as drilling fluid temperature and pressure, a multi-sensor fusion module has been added to the original positioning instrument. During drilling operations, abnormal drilling fluid temperature may indicate bottomhole pressure fluctuations, and a sudden drop in pressure may indicate a risk of well leakage. Existing single-parameter fluid level monitoring cannot comprehensively assess the well control status.

[0026] Implementation steps: A high-temperature pressure sensor and an infrared temperature sensor are added to the measurement module and installed on the top and side wall of the drilling fluid tank, respectively, and connected to the control box 1102 through a waterproof junction box. The control box 1102 integrates a multi-parameter acquisition module to simultaneously acquire liquid level, temperature and pressure data, and uses RS-485 bus to achieve multi-sensor data fusion. The data acquisition unit 5 has been upgraded to an edge computing gateway with a built-in preset threshold judgment algorithm. When the temperature exceeds the ±5℃ threshold or the pressure is 10% lower than the benchmark value, a level 3 alarm is triggered. The third monitor has been upgraded to a touch screen, and a multi-parameter real-time curve interface has been developed, supporting historical data backtracking and trend prediction.

[0027] Implementation results: It enables simultaneous monitoring of three parameters: liquid level, temperature, and pressure, shortening the early warning response time to within 3 seconds. Through multi-parameter correlation analysis, it can identify abnormal conditions such as well leakage and overflow in advance, reducing the frequency of manual inspections by 40% and improving the scientific nature of well control decisions.

[0028] Example 4 Optionally, this utility model provides another embodiment: Please see Figure 1 and Figure 3 This utility model provides another embodiment: an automated drilling control station includes a base frame 1 installed in the station room and a measuring module installed in the drilling fluid tank. It also includes a support mechanism installed on the upper end of the base frame 1. An assembly frame 2 and a bracket 4 are arranged around the support mechanism. A display 3 is fixedly installed on the front side of the assembly frame 2. A data acquisition device 5 and an audible and visual alarm 6 are fixedly installed on the upper end of the bracket 4. The measuring module and the data acquisition device 5 establish a wireless communication connection. The data acquisition device 5 establishes a two-way communication connection with the display 3 and the audible and visual alarm 6.

[0029] Implementation Background: Drilling site environments are complex and may experience momentary interruptions in wireless communication signals, network fluctuations, or unexpected power outages. These situations can lead to the loss of real-time data, affecting the complete analysis and post-event traceability of anomalies such as leaks. This embodiment aims to enhance the system's data reliability and ensure data continuity and integrity.

[0030] Implementation steps: Inside the data acquisition device 5 described in Embodiment 1 or 2, a large-capacity local solid-state storage chip (SSD) is integrated, and an uninterruptible power supply (UPS) module or a large-capacity backup battery is configured.

[0031] Data storage logic design: When the data collector 5 is working normally, it not only sends real-time data to the display 3 and the remote terminal, but also writes all key data such as timestamps, liquid levels, and volumes to local storage at a high frequency (such as once per second).

[0032] A data caching and resume mechanism is established: When a wireless network interruption is detected, the system automatically and continuously saves the data locally. After the network is restored, the data collector 5 will automatically check the data that was not successfully uploaded during the disconnection and resend it to the server or data center.

[0033] Even in the event of a mains power outage, the built-in UPS or battery provides the data acquisition unit 5 with sufficient time to complete the final data write and execute a safe shutdown procedure, preventing data corruption.

[0034] Implementation results: This embodiment provides the well control instrument with a "data black box" function by adding local storage and power failure protection. It effectively handles common field communication and power failures, ensuring that critical well control operation data is not lost under any abnormal circumstances. This provides a complete and reliable data chain for post-incident analysis, process review, and responsibility determination, greatly improving the traceability capability and data security level of well control management.

[0035] Example 5 Optionally, this utility model provides another embodiment: Please see Figure 1 and Figure 3 This utility model provides another embodiment: an automated drilling control station includes a base frame 1 installed in the station room and a measuring module installed in the drilling fluid tank. It also includes a support mechanism installed on the upper end of the base frame 1. An assembly frame 2 and a bracket 4 are arranged around the support mechanism. A display 3 is fixedly installed on the front side of the assembly frame 2. A data acquisition device 5 and an audible and visual alarm 6 are fixedly installed on the upper end of the bracket 4. The measuring module and the data acquisition device 5 establish a wireless communication connection. The data acquisition device 5 establishes a two-way communication connection with the display 3 and the audible and visual alarm 6.

[0036] Implementation Background: Drilling sites are characterized by intense vibrations, dust, high temperatures and humidity, and electromagnetic interference. Conventional electronic equipment operating in such environments for extended periods is prone to malfunctions, signal distortion, or shortened lifespan. This embodiment incorporates environmentally adaptive enhancements to the core components of the drilling rig, ensuring its stability and durability under harsh conditions.

[0037] Specific implementation steps: Thicker steel is used to manufacture structural components such as the base frame 1, assembly frame 2, and bracket 4, and reinforcing ribs are added to key connection parts.

[0038] Design IP65 or higher level protective housings for display 3, data acquisition unit 5, audible and visual alarm 6 and control box 1102 to ensure dust and water resistance.

[0039] All external cable interfaces use military-grade shockproof and waterproof aviation plugs.

[0040] Magnetic rings and shielding covers are added to the circuit boards of the data acquisition unit 5 and the control box 1102, and the power lines and signal lines are filtered to suppress electromagnetic interference.

[0041] The draw-wire encoder 1202 and its signal transmission line adopt differential signal transmission to enhance the ability to resist common-mode interference.

[0042] The display 3 uses a high-brightness, wide-temperature industrial-grade LCD screen to ensure clear visibility under strong light and low temperature conditions.

[0043] Key chips and sensors are selected from industrial-grade or automotive-grade products (operating temperature range -40℃ ~ 85℃ or higher).

[0044] The lampshade and horn of the audible and visual alarm 6 must be explosion-proof and high-temperature resistant.

[0045] Implementation results: This embodiment, through comprehensive environmental adaptability design, significantly improves the reliability, stability, and service life of the automated drilling control system in harsh industrial environments. It effectively resists vibration, dust, moisture, and electromagnetic interference, ensuring accurate monitoring data and continuous, stable system operation. This greatly reduces the failure rate caused by insufficient environmental adaptability of the equipment itself, providing uninterrupted and reliable safety assurance for drilling operations.

[0046] Example 6 Optionally, this utility model provides another embodiment: Please see Figure 1 and Figure 3 This utility model provides another embodiment: a drilling automation well control station includes a base frame 1 installed in the station room and a measuring module installed in the drilling fluid tank. It also includes a support mechanism installed on the upper end of the base frame 1. An assembly frame 2 and a bracket 4 are arranged around the support mechanism. A display 3 is fixedly installed on the front side of the assembly frame 2. A data acquisition device 5 and an audible and visual alarm 6 are fixedly installed on the upper end of the bracket 4. The measuring module and the data acquisition device 5 establish a wireless communication connection. The data acquisition device 5 establishes a two-way communication connection with the display 3 and the audible and visual alarm 6. Please see Figure 1 and Figure 2In this embodiment, the support mechanism includes an outer sleeve rod 801 fixedly installed on the upper end of the base frame 1, a support rod 802 slidably connected inside the outer sleeve rod 801, and a plurality of pre-drilled holes 803 uniformly and linearly opened along the outer periphery of the outer sleeve rod 801. The assembly frame 2 is fixedly installed on the outer periphery of the support rod 802, the bracket 4 is fixedly installed on the outer periphery of the outer sleeve rod 801, four sets of uniformly matrix-arranged casters 9 are fixedly installed at the lower end of the base frame 1, and four sets of internally threaded assembly blocks 1001 are fixedly installed on the outer periphery of the base frame 1. The internal threads of the internally threaded assembly blocks 1001 are connected to threaded feet 1002.

[0047] Background: To address the time-consuming equipment disassembly and assembly issues caused by frequent relocations of drilling platforms. Traditional positioning instruments require specialized tools for disassembly and assembly, with each relocation taking more than 4 hours.

[0048] Implementation steps: The base frame 1 is designed with a quick-release structure. The support rod 802 and the outer rod 801 are connected by a spring lock to achieve lifting and adjustment. The assembly rack 2 and bracket 4 are replaced with magnetic fixing modules, and the display 3 and data acquisition unit 5 adopt standard VESA interface, supporting 60-second quick loading and unloading. The 9 swivel wheels have been upgraded to heavy-duty casters with self-locking function, and the threaded feet 1002 have been replaced with an electric lifting mechanism that can be controlled by a remote control. A matching handling trolley was developed, with the base frame 1 folded down to a size of 1.2m×0.8m×0.5m, meeting the requirements for standard container transportation.

[0049] Implementation results: The equipment disassembly and assembly time is reduced to within 15 minutes, significantly improving the combat capability of individual soldiers. The modular design enables plug-and-play operation, and the electric outriggers achieve millimeter-level leveling accuracy. It is particularly suitable for operation scenarios that require rapid relocation, such as shale gas platforms, reducing labor costs by 60%.

[0050] Through the above steps, the liquid level in the drilling fluid tank is measured in real time by the measurement module, and the data is transmitted to the data acquisition unit 5. The data acquisition unit 5 can store the measured data and display it intuitively on the display 3. When the measured data is abnormal, the audible and visual alarm 6 can issue an audible and visual alarm to remind the personnel in the control room to deal with it in time. This solves the problem that the current well control system only adds the drilling fluid volume display module of the mud tank to the mechanical float level gauge, or configures the data display module in the logging room or driller's room. The personnel cannot intuitively obtain key parameters such as the cumulative volume and leakage of drilling fluid in multiple circulation tanks, which leads to high labor intensity.

[0051] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A drilling automation well control station, comprising a base frame installed in a station room and a measuring module installed in a drilling fluid tank, characterized in that: It also includes a support mechanism set on the upper part of the base frame. The support mechanism is surrounded by an assembly frame and a bracket. A display is fixedly installed on the front side of the assembly frame. A data acquisition unit and an audible and visual alarm are fixedly installed on the upper part of the bracket. The measurement module establishes a wireless communication connection with the data acquisition unit. The data acquisition unit establishes a two-way communication connection with the display and the audible and visual alarm.

2. The drilling automation well control station according to claim 1, characterized in that: The assembly rack has a rotating internal light shield. The connection between the light shield and the assembly rack is damped. An adjustment knob is fixedly installed on one side of the light shield, which is located on the periphery of the monitor.

3. The drilling automation well control station according to claim 1, characterized in that: The support mechanism includes an outer sleeve rod fixedly installed on the upper end of the base frame. A support rod is slidably connected inside the outer sleeve rod, and several reserved holes are evenly and linearly opened along the axial direction on the outer periphery of the outer sleeve rod.

4. The drilling automation well control station according to claim 3, characterized in that: The assembly frame is fixedly installed on the outside of the support rod, and the bracket is fixedly installed on the outside of the outer rod.

5. The drilling automation well control station according to claim 1, characterized in that: Four sets of evenly arranged casters are fixedly installed at the lower end of the base frame.

6. The drilling automation well control station according to claim 1, characterized in that: Four sets of internal thread assembly blocks are fixedly installed on the outer perimeter of the base frame, and the internal threads of the internal thread assembly blocks are connected to threaded feet.

7. The drilling automation well control station according to claim 1, characterized in that: The audible and visual alarm integrates a three-color warning light group, corresponding to red, green, and yellow status indicators respectively.

8. The drilling automation well control station according to claim 1, characterized in that: The measurement module includes a mechanical float level gauge and a control box. The mechanical float level gauge is fixedly installed inside the drilling fluid tank, and the control box is fixedly installed on the upper end of the mechanical float level gauge.

9. The drilling automation well control station according to claim 8, characterized in that: The internal structure of the pull-cord encoder is a spring-loaded pull-cord recovery mechanism with a pull-cord recovery force of <450g.

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