Wireless interlocking protection system for hydraulic and pneumatic tongs

Abstract

The utility model relates to the technical field of petroleum drilling machine control, and provides a hydraulic-gas power tong wireless interlocking protection system which comprises a hydraulic-gas power tong, a comprehensive hydraulic station connected with the hydraulic-gas power tong through an input hydraulic pipeline, a vertical pipe arranged on the side, away from the hydraulic power tong, of the comprehensive hydraulic station, a pressure measuring connector arranged on the vertical pipe and a vertical pipe pressure detection module. The stand pipe pressure detection module is used for detecting real-time stand pipe pressure and outputting a safety interlocking instruction when it is detected that the stand pipe pressure is larger than a preset safety threshold value; and a hydraulic pipeline management module arranged between the hydraulic and gas tongs and the comprehensive hydraulic station is used for switching off / switching on an input hydraulic pipeline when the safety interlocking instruction is detected / not detected, and starting / stopping alarming under the switching-off / switching-on condition. The system ensures that the hydraulic-gas power tongs do not respond to dangerous operation of operators when the pressure of the vertical pipe exceeds a safety threshold value, the dangerous accident that a drill rod is detached under the high-pressure state of the vertical pipe is thoroughly eradicated, and the use safety of the hydraulic-gas power tongs is effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of oil drilling rig control technology and relates to a wireless interlock protection system for hydraulic and gas tongs. Background Technology

[0002] Hydraulic-pneumatic tongs are commonly used equipment in oil drilling operations for threading and unthreading drill strings. Due to their high efficiency, simple structure, and ease of maintenance, hydraulic-pneumatic tongs are widely used in oilfields. During field operations, operators use the hydraulic handles on the tongs to drive the various actuators and complete routine tasks such as threading and unthreading drill strings. Manual handling can lead to dangerous operations such as operating the tongs to unthread drill strings before the riser pressure has been released, which can easily cause equipment damage, operator accidents, and seriously affect the safety of drilling operations. Utility Model Content

[0003] In view of this, the present disclosure provides a wireless interlock protection system for hydraulic and pneumatic tongs to solve the problem in the prior art where manual handling may lead to dangerous operations such as operating hydraulic and pneumatic tongs to perform drill string unhooking operations before the riser pressure is released during on-site operations, resulting in equipment damage, operator safety accidents, and seriously affecting the safety of drilling operations.

[0004] A first aspect of this disclosure provides a wireless interlocking protection system for hydraulic and pneumatic clamps, comprising:

[0005] The hydraulic-pneumatic tongs consist of an integrated hydraulic station connected to the hydraulic-pneumatic tongs via an input hydraulic pipeline, a riser located on the side of the integrated hydraulic station away from the hydraulic tongs, and a pressure testing interface located on the riser.

[0006] A riser pressure detection module connected to a pressure measurement interface is used to detect real-time riser pressure and output a safety interlock command when the detected riser pressure is greater than a preset safety threshold.

[0007] The hydraulic pipeline management module installed between the hydraulic-pneumatic tongs and the integrated hydraulic station is used to shut off / open the input hydraulic pipeline when the safety interlock command is detected / not detected, and to start / stop the alarm when the pipeline is shut off / open.

[0008] In some embodiments, the riser pressure detection module includes:

[0009] A pressure sensor, with its first end connected to the pressure measuring interface and its second end connected to the pressure control unit, is used to detect the riser pressure through the pressure measuring interface, generate a riser pressure signal, convert the riser pressure signal into an overpressure electrical signal, and send it to the pressure control unit.

[0010] A pressure control unit, the second end of which is connected to the first end of a wireless transmitter, is used to receive the overvoltage signal and determine whether it is greater than the safety threshold, and send the overvoltage signal to the wireless transmitter when it is greater than the safety threshold.

[0011] A wireless transmitter is used to output the safety interlock command when an over-piezoelectric signal is detected;

[0012] The first power module is used to supply power to the pressure sensor, pressure control unit, and wireless transmitter.

[0013] In some embodiments, the hydraulic pipeline management module includes:

[0014] A wireless transceiver, the first end of which is connected to the first end of the solenoid valve control unit, is used to generate a safety interlock signal and send it to the solenoid valve control unit through its first end when the safety interlock command is detected.

[0015] The solenoid valve control unit has its second terminal connected to the first terminal of the signal amplifier and its third terminal connected to the first terminal of the audible and visual alarm. It is used to generate a solenoid valve shut-off command and send it to the signal amplifier when a safety interlock signal is received, and to generate an alarm command and send it to the audible and visual alarm.

[0016] A signal amplifier, whose second terminal is connected to a solenoid valve, is used to amplify the received solenoid valve shut-off command and output the amplified shut-off signal through its second terminal.

[0017] A solenoid valve with its second end connected to the input hydraulic line is used to perform a shut-off / turn-on operation to put the input hydraulic line in a shut-off / turn-on state when amplified shut-off signal is received or not received.

[0018] An audible and visual alarm is used to activate an audible and visual alarm when an alarm command is received.

[0019] The second power supply module is used to supply power to the wireless transceiver, solenoid valve control unit, signal amplifier, switching solenoid valve, and audible and visual alarm.

[0020] In some embodiments, the system further includes a comprehensive detection module, and the hydraulic pipeline management module further includes a hydraulic pipeline pressure detection unit;

[0021] The first end of the hydraulic pipeline pressure detection unit is connected to the hydraulic pipeline, and the second end is connected to the fourth end of the solenoid valve control unit. It is used to acquire the real-time pipeline pressure signal of the hydraulic pipeline, convert it into a pipeline electrical signal, and transmit the pipeline electrical signal to the solenoid valve control unit.

[0022] The solenoid valve control unit also generates a real-time torque signal for attaching and detaching the valve based on the received pipeline electrical signal and sends it to the wireless transceiver.

[0023] The wireless transceiver converts the received real-time torque signal into a wireless torque signal and then outputs it.

[0024] The integrated detection module is used to determine whether the real-time torque signal meets the requirements according to the preset torque index when the wireless torque signal is detected, and to generate a torque alarm signal to make the corresponding device alarm if the requirements are not met.

[0025] In some embodiments, the integrated detection module includes:

[0026] A wireless detection unit is used to convert the wireless torque signal into a real-time torque signal through its first terminal and send it to the background analysis unit when the wireless torque signal is detected.

[0027] The background analysis unit, whose first end is connected to the first end of the wireless detection unit, is used to determine whether the real-time torque signal meets the requirements based on the torque index and to display the judgment result on the target interface.

[0028] The third power supply module is used to supply power to the wireless detection unit and the background analysis unit.

[0029] In some embodiments, the wireless detection unit is further configured to generate and output a wireless disconnection alarm signal when a disconnection is detected between the wireless transceiver and the wireless transmitter, so as to trigger an alarm from the corresponding alarm device.

[0030] In some embodiments, the second end of the solenoid valve is connected to the interface of the input hydraulic line near the hydraulic clamp end, and the third end of the solenoid valve is connected to the hydraulic output end of the hydraulic clamp, or...

[0031] The second end of the solenoid valve is connected to the interface of the input hydraulic line near the integrated hydraulic station, and the third end of the solenoid valve is connected to the hydraulic input end of the integrated hydraulic station, or...

[0032] The solenoid valve is located on the hydraulic line.

[0033] In some embodiments, the response interval of the pressure sensor, wireless transmitter, wireless transceiver, switching solenoid valve, and wireless detection unit is not less than 500 milliseconds.

[0034] In some embodiments, the response interval of the pressure sensor, wireless transmitter, wireless transceiver, switching solenoid valve, and wireless detection unit is 200 milliseconds.

[0035] Beneficial effects

[0036] The beneficial effects of this disclosed embodiment compared to the prior art include at least the following: On the one hand, the riser pressure detection module connected to the pressure measurement interface is used to detect the real-time riser pressure and output a safety interlock command when the detected riser pressure exceeds a preset safety threshold; the hydraulic pipeline management module set between the hydraulic tongs and the integrated hydraulic station is used to shut off / open the input hydraulic pipeline when the safety interlock command is detected / not detected, and to start / stop the alarm when shut off / open, ensuring that the hydraulic tongs do not respond to dangerous operations by the operator when the riser pressure exceeds the safety threshold, completely eliminating the dangerous accident of disassembling the drill pipe under high pressure on the riser, and effectively improving the safety of using the hydraulic tongs. On the other hand, when the wireless torque signal is detected, it is judged whether the real-time torque signal meets the requirements according to the preset torque index, and an alarm is triggered when the requirements are not met, thereby ensuring that the upper torque reaches the required range and preventing downhole drill string failure accidents caused by over-tightening or under-tightening. Attached Figure Description

[0037] To more clearly illustrate the technical solutions in the embodiments of this disclosure, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0038] Figure 1 This is a simplified schematic diagram of a hydraulic-pneumatic clamp wireless interlock protection system provided in an embodiment of this disclosure;

[0039] Figure 2 This is a schematic diagram of the riser pressure detection module of a hydraulic-gas clamp wireless interlock protection system provided in this embodiment of the present disclosure;

[0040] Figure 3 This is a schematic diagram of the hydraulic pipeline management module of a wireless interlocking protection system for hydraulic and pneumatic pliers provided in this embodiment of the present disclosure;

[0041] Figure 4 This is a simplified schematic diagram of another hydraulic-pneumatic clamp wireless interlock protection system provided in this embodiment of the present disclosure;

[0042] Figure 5 This is a schematic diagram of the hydraulic pipeline management module of another hydraulic-pneumatic pliers wireless interlock protection system provided in this embodiment of the present disclosure;

[0043] Figure 6 This is a schematic diagram of the integrated detection module of another hydraulic-pneumatic clamp wireless interlock protection system provided in this embodiment of the present disclosure;

[0044] Figure 7This is a schematic diagram of the structure of a comprehensive detection module of another hydraulic-pneumatic clamp wireless interlock protection system provided in this embodiment of the present disclosure;

[0045] Figure 8 This is a simplified schematic diagram illustrating the working principle between the modules of another hydraulic-pneumatic pliers wireless interlocking protection system provided in this embodiment. Detailed Implementation

[0046] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0047] It should also be noted that, for ease of description, only the parts relevant to this disclosure are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0048] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this disclosure, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0049] In this disclosure, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this disclosure according to the specific circumstances.

[0050] In this disclosure, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0051] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0052] Furthermore, the orientations or positional relationships indicated by terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the purpose of facilitating the description of this disclosure and simplifying the description. They are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure.

[0053] Please refer to Figure 1 This disclosure illustrates a wireless interlocking protection system for a hydraulic-pneumatic clamp, comprising:

[0054] The hydraulic-pneumatic tongs are connected to an integrated hydraulic station via an input hydraulic pipeline. A riser is located on the side of the integrated hydraulic station furthest from the hydraulic tongs, and a pressure testing interface is installed on the riser. A riser pressure detection module is connected to the pressure testing interface. This module detects the real-time riser pressure and outputs a safety interlock command when the detected riser pressure exceeds a preset safety threshold. A hydraulic pipeline management module is installed between the hydraulic-pneumatic tongs and the integrated hydraulic station. This module shuts off / opens the input hydraulic pipeline when the safety interlock command is detected / not detected, and activates / deactivates an alarm when the pipeline is shut off / open.

[0055] Its working principle is as follows:

[0056] During normal operation, the riser pipe experiences little or no pressure. When the pressure exceeds a certain level, an abnormality occurs, requiring immediate shutdown of the hydraulic line to prevent accidents and equipment damage. The riser pressure detection module measures the riser pressure in real-time via a pressure measurement interface. When the detected pressure exceeds a preset safety threshold (a pre-set value corresponding to various application scenarios, not exemplified here), an abnormality is identified. In this case, the hydraulic line should be cut off to stop transmission and prevent dangerous situations. Therefore, the riser pressure detection module outputs a safety interlock command wirelessly. Simultaneously, the hydraulic line management module detects the receipt of the safety interlock command in real-time. Upon detection, it shuts off the input hydraulic line and activates the alarm. Conversely, if no safety interlock command is detected, it reconnects the input hydraulic line and deactivates the alarm. The safety interlock command can refer to commands related to the interlocking of hydraulic and pneumatic tongs with riser pressure.

[0057] This embodiment utilizes a riser pressure detection module connected to a pressure measurement interface. This module detects real-time riser pressure and outputs a safety interlock command when the detected riser pressure exceeds a preset safety threshold. A hydraulic pipeline management module, located between the hydraulic tongs and the integrated hydraulic station, shuts off / opens the input hydraulic pipeline when the safety interlock command is detected or not detected. It also activates / deactivates an alarm when the pipeline is shut off / open, ensuring that the hydraulic tongs do not respond to dangerous operations by the operator when the riser pressure exceeds the safety threshold. This completely eliminates the risk of dangerous accidents caused by disassembling drill pipes under high riser pressure, effectively improving the safety of using the hydraulic tongs.

[0058] In some embodiments, such as Figure 2 As shown, the riser pressure detection module includes:

[0059] A pressure sensor, with its first end connected to the pressure measurement interface and its second end connected to the pressure control unit, is used to detect the riser pressure through the pressure measurement interface, generate a riser pressure signal, convert the riser pressure signal into an overpressure electrical signal, and then send it to the pressure control unit. The overpressure electrical signal refers to the electrical signal converted from the riser pressure signal. Although theoretically the riser should not normally generate pressure, in actual situations, complex internal and external factors may cause a slight pressure increase that does not have a significant impact. Therefore, it is necessary to collect the pressure signal, convert it into an electrical signal, and then further analyze the electrical signal. The pressure sensor is a commonly used sensor for pressure detection; for example, this pressure sensor can be a PPM-T330J or PPM-T235B sensor with an integrated flush diaphragm structure, or a PPM-T293A sensor with a union mounting method, etc.

[0060] The pressure control unit, with its second terminal connected to the first terminal of the wireless transmitter, receives the overvoltage signal and determines whether it exceeds the safety threshold. If the overvoltage signal exceeds the safety threshold, it transmits the signal to the wireless transmitter. The pressure control unit can be a commonly used embedded control board that receives voltage signals and determines data size, such as the Arduino Uno development board based on the ATmega328P microcontroller, or the BeagleBone Black development board based on the ARM architecture.

[0061] A wireless transmitter is used to output the safety interlock command when an overvoltage signal is detected. The wireless transmitter can refer to a chip used to transmit wireless signals, such as an RTL8188 chip, a CSR8670 chip, etc., or a device equipped with the above-mentioned chips. The choice is made as needed, and no further restrictions are imposed here.

[0062] The first power module is used to supply power to the pressure sensor, pressure control unit, and wireless transmitter. The first power module can be a detachable power module such as a dry cell battery module, or it can be a module that converts external power to the voltage and current corresponding to this module. The specific configuration is as needed and is not limited here.

[0063] In some embodiments, such as Figure 3 As shown, the hydraulic pipeline management module includes:

[0064] A wireless transceiver, with its first terminal connected to the first terminal of the solenoid valve control unit, generates a safety interlock signal upon detecting the safety interlock command and transmits it to the solenoid valve control unit via its first terminal. The safety interlock signal can refer to the signal sent to the solenoid valve control unit corresponding to the safety interlock command. Similar to a wireless transmitter, the wireless transceiver can be a chip with receiving functionality, such as the SI4421 transceiver chip or the SC9625 wireless chip, or a device incorporating the aforementioned chips; the choice is based on need and is not limited here.

[0065] The solenoid valve control unit has its second terminal connected to the first terminal of a signal amplifier and its third terminal connected to the first terminal of an audible and visual alarm. It generates a solenoid valve shut-off command upon receiving a safety interlock signal and sends it to the signal amplifier, and also generates an alarm command to send to the audible and visual alarm. The solenoid valve control unit can refer to an embedded development board used to control the solenoid valve, such as the Arduino Uno development board based on the ATmega328P microcontroller, or the BeagleBone Black development board based on the ARM architecture.

[0066] The signal amplifier, whose second terminal is connected to the solenoid valve, amplifies the received solenoid valve shut-off command and outputs the amplified shut-off signal through its second terminal. The signal amplifier can refer to commonly used signal amplification chips, such as the SKY77336 RF chip or the RHS2116 amplification chip, etc., and can be any amplification device incorporating these chips. The choice is based on need and is not limited here.

[0067] A solenoid valve is used to switch the input hydraulic line. Its second end is connected to the input hydraulic line. It is used to perform a shut-off / turn-on operation to put the input hydraulic line in a shut-off / turn-on state when amplified shut-off signal is received or not received.

[0068] An audible and visual alarm is used to activate an audible and visual alarm when an alarm command is received.

[0069] The second power module supplies power to the wireless transceiver, solenoid valve control unit, signal amplifier, switching solenoid valve, and audible and visual alarm. This second power module can be a detachable power module such as a dry cell battery module, or it can be a module that converts external power to the voltage and current corresponding to this module. The choice is based on need and is not limited here.

[0070] It should be noted that the solenoid valve can be installed between the hydraulic output end of the hydraulic tongs and the hydraulic pipeline; that is, its second end is connected to the interface of the input hydraulic pipeline near the hydraulic tongs end, and the third end of the solenoid valve is connected to the hydraulic output end of the hydraulic tongs. Alternatively, the solenoid valve can be installed between the integrated hydraulic power unit and the hydraulic pipeline; that is, the second end of the solenoid valve is connected to the interface of the input hydraulic pipeline near the integrated hydraulic power unit, and the third end of the solenoid valve is connected to the hydraulic input end of the integrated hydraulic power unit. The solenoid valve can also be directly installed on the hydraulic pipeline. The choice is based on need and no specific restrictions are made here.

[0071] In some embodiments, this disclosure provides a wireless interlocking protection system for hydraulic and pneumatic clamps, the system comprising:

[0072] The hydraulic-pneumatic tongs consist of an integrated hydraulic station connected to the hydraulic-pneumatic tongs via an input hydraulic pipeline, a riser located on the side of the integrated hydraulic station away from the hydraulic tongs, and a pressure testing interface located on the riser.

[0073] A riser pressure detection module connected to a pressure measurement interface is used to detect real-time riser pressure and output a safety interlock command when the detected riser pressure exceeds a preset safety threshold. The riser pressure detection module includes: a pressure sensor, with its first end connected to the pressure measurement interface and its second end connected to a pressure control unit, used to detect riser pressure through the pressure measurement interface, generate a riser pressure signal, convert the riser pressure signal into an overpressure electrical signal, and send it to the pressure control unit; a pressure control unit, with its second end connected to the first end of a wireless transmitter, used to receive the overpressure electrical signal and determine whether it exceeds the safety threshold, and send it to the wireless transmitter when the overpressure electrical signal exceeds the safety threshold; a wireless transmitter used to output the safety interlock command when an overpressure electrical signal is detected; and a first power supply module used to supply power to the pressure sensor, pressure control unit, and wireless transmitter.

[0074] The hydraulic pipeline management module installed between the hydraulic-pneumatic tongs and the integrated hydraulic station is used to shut off / open the input hydraulic pipeline when the safety interlock command is detected / not detected, and to start / stop the alarm when the pipeline is shut off / open. The hydraulic pipeline management module includes: a wireless transceiver, whose first end is connected to the first end of the solenoid valve control unit, for generating a safety interlock signal and sending it to the solenoid valve control unit through its first end when the safety interlock command is detected; a solenoid valve control unit, whose second end is connected to the first end of the signal amplifier and its third end is connected to the first end of the audible and visual alarm, for generating a solenoid valve shut-off command and sending it to the signal amplifier when the safety interlock signal is received, and generating an alarm command and sending it to the audible and visual alarm; a signal amplifier, whose second end is connected to the switching solenoid valve, for amplifying the received solenoid valve shut-off command and outputting an amplified shut-off signal through its second end; a switching solenoid valve, whose second end is connected to the input hydraulic pipeline, for performing a shut-off / open operation to put the input hydraulic pipeline in a shut-off / open state when the amplified shut-off signal is received / not received; an audible and visual alarm, for activating the audible and visual alarm when an alarm command is received; and a second power supply module, for supplying power to the wireless transceiver, the solenoid valve control unit, the signal amplifier, the switching solenoid valve, and the audible and visual alarm.

[0075] Please continue to refer to Figure 4 and Figure 5 This disclosure illustrates another wireless interlocking protection system for hydraulic and pneumatic clamps, which includes not only Figures 2 to 4 The system modules shown also include a comprehensive testing module, and the hydraulic pipeline management module further includes a hydraulic pipeline pressure testing unit.

[0076] The first end of the hydraulic pipeline pressure detection unit is connected to the hydraulic pipeline, and the second end is connected to the fourth end of the solenoid valve control unit. It is used to acquire the real-time pipeline pressure signal of the hydraulic pipeline, convert it into a pipeline electrical signal, and transmit the pipeline electrical signal to the solenoid valve control unit.

[0077] The solenoid valve control unit also generates a real-time torque signal for attaching and detaching the valve based on the received pipeline electrical signal and sends it to the wireless transceiver.

[0078] During operation, the required torque for threading varies depending on the drill pipe specification. Excessive torque can cause over-twisting of the drill pipe coupling threads, leading to seal failure and thread type instability, affecting the drill pipe string's sealing performance and disassembly capability. In severe cases, it can cause mud leakage at the drill pipe connection, drill pipe seizure, and other serious problems. Insufficient torque can also cause drill pipe seal failure and drill string falling into the well, among other serious accidents. To ensure safe construction by achieving a safe interlock between the hydraulic tongs and various specifications of tubing, it is necessary to eliminate the risks of over-twisting and under-twisting. When judging the threading torque, it can be calculated by detecting the hydraulic line pressure. Simply put, the higher the threading torque, the higher the hydraulic line pressure; conversely, the lower the threading torque, the lower the hydraulic line pressure.

[0079] The wireless transceiver converts the received real-time torque signal into a wireless torque signal and then outputs it.

[0080] The integrated detection module is used to determine whether the real-time torque signal meets the requirements based on a preset torque index when the wireless torque signal is detected. If the requirements are not met, a torque alarm signal is generated to trigger an alarm on the corresponding device. The torque index refers to the normal operating torque range of the current hydraulic tongs, which includes an upper limit and a lower limit. A torque exceeding the upper limit indicates an over-torque risk, while a torque below the lower limit indicates an under-torque risk. Furthermore, the torque index is related to the shape, size, and material of the tubing, with the strongest correlation to size. Therefore, the determination of this torque index is related to the relevant parameters of the tubing.

[0081] In some optional implementations, if the real-time torque signal is less than the lower limit, an under-torque alarm signal is output to trigger an under-torque alarm in the corresponding device; if the real-time torque signal is greater than the upper limit, an over-torque alarm signal is output to trigger an over-torque alarm in the corresponding device.

[0082] This disclosed embodiment can wirelessly monitor the torque of threading and unthreading, determine the risk of over-torque and under-torque during the threading process based on the type of drill string, and issue alarm prompts to ensure that the threading torque is reasonable during the operation of the hydraulic tongs and to ensure a reliable connection between drill strings. It further enhances the safety of the safety interlock.

[0083] In some embodiments, such as Figure 6 As shown, the integrated testing module includes:

[0084] A wireless detection unit is used to convert the wireless torque signal into a real-time torque signal via its first terminal and send it to the background analysis unit when the wireless torque signal is detected. The wireless detection unit can refer to a chip used for detecting and converting signals, such as the SI4421 transceiver chip or the SC9625 wireless chip, or it can be a device incorporating such chips. The choice is made as needed and is not limited here.

[0085] The background analysis unit, whose first end is connected to the first end of the wireless detection unit, is used to determine whether the real-time torque signal meets the requirements based on the torque index and display the determination result on the target interface. The background analysis unit can refer to an embedded development board with the aforementioned functions, such as the Arduino Uno development board based on the ATmega328P microcontroller, or the BeagleBone Black development board based on the ARM architecture.

[0086] The target display interface can refer to the display interface of a specific device, such as a mobile phone, computer, or mobile computer, used to display the judgment results.

[0087] The third power supply module is used to power the wireless detection unit and the back-end analysis unit. The third power supply module can be a detachable power supply module such as a dry cell battery module, or it can be a module that converts external power to the voltage and current corresponding to this module. It can be set as needed, and there are no restrictions here.

[0088] Please refer to Figure 4 , 7 Figure 8 illustrates another type of wireless interlock protection system for hydraulic and pneumatic tongs provided in this disclosure. This system includes the aforementioned equipment and modules. Additionally, the wireless detection unit generates and outputs a wireless disconnection alarm signal when a disconnection is detected between the wireless transceiver and the wireless transmitter, causing the corresponding alarm device to activate. By combining safety interlocking and disconnection detection, the risk of dangerous accidents during drill pipe disassembly under high-pressure conditions on the riser can be significantly reduced, effectively improving the safety of using hydraulic and pneumatic tongs. Furthermore, by combining the over-tightening and under-tightening determination of the tightening torque, downhole drill string failure accidents caused by over-tightening or under-tightening can be further reduced, greatly improving the practicality of this disclosure.

[0089] Furthermore, it should be noted that the aforementioned components requiring detection and judgment (such as pressure sensors, wireless transmitters, wireless transceivers, solenoid valves, and wireless detection units) need to perform continuous detection and judgment. In actual operation, the detection / judgment / response time interval should not be less than 500 milliseconds; otherwise, the latency will be too high, affecting the speed of judgment of safety events. However, the lower the response interval, the higher the cost, and the less practical it will be in real-world applications. Therefore, considering both response speed and price, the preferred response interval for the aforementioned components is 200 milliseconds. Of course, with technological advancements, the optimal response speed may decrease, and the choice should be made based on specific needs.

[0090] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A wireless interlocking protection system for a hydraulic and pneumatic tong, comprising a hydraulic and pneumatic tong, an integrated hydraulic station connected to the hydraulic and pneumatic tong via an input hydraulic pipeline, a riser arranged on a side of the integrated hydraulic station away from the hydraulic tong, and a pressure measuring interface arranged on the riser, characterized in that: include: A standpipe pressure detection module connected to the pressure measuring interface, the standpipe pressure detection module is used to detect the real-time standpipe pressure and output a safety interlock instruction when it is detected that the standpipe pressure is greater than a preset safety threshold; The hydraulic pipeline management module arranged between the hydraulic and pneumatic tongs and the integrated hydraulic station is used to shut off / open the input hydraulic pipeline when the safety interlock instruction is detected / not detected, and start / stop the alarm when shutting off / opening.

2. The system according to claim 1, characterized in that The standpipe pressure detection module comprises: a pressure sensor, a first end of which is connected to the pressure measuring interface and a second end of which is connected to the pressure control unit, for detecting the riser pressure through the pressure measuring interface, generating a riser pressure signal, converting the riser pressure signal into an overpressure electrical signal and sending it to the pressure control unit; A pressure control unit, the second end of which is connected to the first end of the wireless transmitter, for receiving the over-voltage electrical signal and determining whether it is greater than the safety threshold, and sending the over-voltage electrical signal to the wireless transmitter when it is greater than the safety threshold; A wireless transmitter, configured to output the safety interlock instruction when an over-voltage signal is detected; The first power supply module is used to supply power to the pressure sensor, the pressure control unit and the wireless transmitter.

3. The system according to claim 2, characterized in that The hydraulic pipeline management module includes: a wireless transceiver, a first end of which is connected to a first end of the solenoid valve control unit, and is used to generate a safety interlock signal and send it to the solenoid valve control unit through the first end when the safety interlock instruction is detected; A solenoid valve control unit, a second end of which is connected to the first end of the signal amplifier, and a third end of which is connected to the first end of the sound and light alarm, for generating a solenoid valve shut-off command and sending it to the signal amplifier when receiving a safety interlock signal, and generating an alarm command and sending it to the sound and light alarm; A signal amplifier, the second end of which is connected to the switch solenoid valve, is used to amplify the received solenoid valve shut-off instruction and output the amplified shut-off signal through the second end; A switch solenoid valve, a second end of which is connected to the input hydraulic pipeline, and is used to perform a shutoff / on operation to put the input hydraulic pipeline in a shutoff / on state when receiving / not receiving the amplified shutoff signal; An audible and visual alarm, used to activate an audible and visual alarm upon receiving an alarm command; The second power supply module is used to supply power to the wireless transceiver, the solenoid valve control unit, the signal amplifier, the switch solenoid valve, and the sound and light alarm.

4. The system according to claim 3, characterized in that The system further comprises a comprehensive detection module, and the hydraulic line management module further comprises a hydraulic line pressure detection unit; The first end of the hydraulic pipeline pressure detection unit is connected to the hydraulic pipeline, and the second end is connected to the fourth end of the solenoid valve control unit, and is used to obtain the real-time pipeline pressure signal of the hydraulic pipeline, convert it into a pipeline electrical signal, and transmit the pipeline electrical signal to the solenoid valve control unit; The solenoid valve control unit also generates a real-time torque signal for making and breaking a buckle based on the received pipeline electrical signal, and sends it to the wireless transceiver; The wireless transceiver converts the received real-time torque signal into a wireless torque signal and then outputs it; The comprehensive detection module is used to determine whether the real-time torque signal meets the requirements according to the preset torque index when the wireless torque signal is detected, and to generate a torque alarm signal to cause the corresponding device to alarm if the real-time torque signal does not meet the requirements.

5. The system according to claim 4, characterized in that The comprehensive detection module comprises: A wireless detection unit, configured to, when detecting the wireless torque signal, convert the wireless torque signal into the real-time torque signal through its first end and send the real-time torque signal to a background analysis unit; A background analysis unit, a first end of which is connected to the first end of the wireless detection unit, for judging whether the real-time torque signal meets the requirements according to the torque index, and displaying the judgment result on the target interface; The third power supply module is used to supply power to the wireless detection unit and the background analysis unit.

6. The system according to claim 5, characterized in that The wireless detection unit is also used to generate and output a wireless disconnection alarm signal when it detects that the wireless transceiver and the wireless transmitter are disconnected, so that the corresponding alarm device can sound an alarm.

7. The system according to claim 3, characterized in that The second end of the switch solenoid valve is connected to the interface of the input hydraulic pipeline close to the hydraulic tongs end, and the third end of the switch solenoid valve is connected to the hydraulic output end of the hydraulic tongs, or, The second end of the switch solenoid valve is connected to the interface of the input hydraulic pipeline close to the integrated hydraulic station, and the third end of the switch solenoid valve is connected to the hydraulic input end of the integrated hydraulic station, or, The switch solenoid valve is arranged on the hydraulic pipeline.

8. The system according to any one of claims 3 to 7, characterized in that: The response interval of the pressure sensor, wireless transmitter, wireless transceiver, switch solenoid valve and wireless detection unit is not less than 500 milliseconds.

9. The system according to claim 8, characterized in that The response interval of the pressure sensor, wireless transmitter, wireless transceiver, switch solenoid valve and wireless detection unit is 200 milliseconds.

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