Method for controlling opening under pressure and related device

Abstract

The application discloses a kind of with pressure trepanning control method and related equipment, it is related to industrial pipeline maintenance technical field, mainly to solve the problem of lacking a more accurate method when drilling on pressure pipeline.The method comprises: obtaining the safety threshold for the pressure trepanning of pipeline, wherein the safety threshold includes the maximum displacement upper limit value of drill bit allowed to travel and the pressure change rate threshold;In the case of pressure trepanning of pipeline, real-time drill bit feed displacement and drilling resistance data instantaneous change rate are collected;In the case where the drill bit feed displacement is greater than the maximum displacement upper limit value of drill bit allowed to travel or the drilling resistance data instantaneous change rate is greater than the pressure change rate threshold at the moment of drilling through, stop pressure trepanning of pipeline.The application is used for pressure trepanning control process.

Description

Technical Field

[0001] This invention relates to the field of industrial pipeline maintenance technology, and in particular to a method for controlling pressurized tapping and related equipment. Background Technology

[0002] In the field of industrial pipeline maintenance, live drilling is a critical and high-risk operational technique. It refers to the operation of drilling, branching, or connecting pipes directly into the pipe wall while maintaining internal pressure and flow of the medium in pipelines transporting oil, natural gas, etc. This technique can minimize production downtime and ensure the continuity of energy or material transportation; however, it requires extremely high technical skills, and any operational error can directly lead to serious safety accidents such as media leakage or even explosions. Currently, in the crucial step of determining whether the drill bit has accurately penetrated the pipe wall, this operation mainly relies on the operator's subjective experience, such as the cutting sound and the feeling of vibration. The inherent uncertainty and insufficient reliability of this method constitute a major safety bottleneck. Therefore, when drilling into pressurized pipelines, there is a lack of a method that can replace manual subjective judgment and achieve automatic and precise control to solve the above problems. Summary of the Invention

[0003] In view of the above problems, the present invention provides a method and related equipment for controlling live drilling, the main purpose of which is to solve the problem of the lack of a more precise method when drilling pressurized pipelines.

[0004] To solve at least one of the above-mentioned technical problems, in a first aspect, the present invention provides a method for controlling pressurized opening, the method comprising: Obtain a safety threshold for hot tapping a pipeline, wherein the safety threshold includes the maximum allowable displacement of the drill bit and a pressure change rate threshold; Under the condition of hot drilling of pipeline, real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance are collected. If the drill bit feed displacement is greater than the maximum allowable displacement of the drill bit or the instantaneous change rate of the drilling resistance data is greater than the pressure change rate threshold at the moment of drilling, the pressurized drilling of the pipeline shall be stopped.

[0005] Optionally, obtaining the safety threshold for hot tapping the pipeline includes: Obtain the operation parameters, which include the inner radius of the pipe, the radius of the drill bit, the pipe wall thickness at the opening, and the safety margin; The maximum allowable displacement of the drill bit is determined based on the operating parameters, wherein the maximum allowable displacement of the drill bit is used to characterize the maximum safe distance that the drill bit is allowed to travel from the point of contact with the outer wall of the pipe; A pressure change rate threshold is set, wherein the pressure change rate threshold is used to characterize the critical rate at which the drilling resistance begins to decrease from a stable cutting state.

[0006] Optionally, determining the maximum allowable displacement of the drill bit based on the operating parameters includes: The maximum allowable displacement of the drill bit is determined based on the sum of the pipe wall thickness at the opening and the safety margin.

[0007] Optionally, the above methods also include: The data at the moment the drill bit contacts the outer wall of the pipe at the opening is recorded as the initial value for the pressurized drilling operation.

[0008] Optionally, the step of collecting real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance during pressurized drilling of the pipeline includes: When drilling a pipe under pressure, real-time drill bit feed displacement and resistance signals are collected, wherein the resistance signal is used to reflect the resistance encountered by the drill bit during the drilling process. The instantaneous rate of change of the drilling resistance data is determined based on the continuous resistance signal.

[0009] Optionally, the above methods also include: When hot tapping of the pipeline is stopped, the operation privilege of the hot tapping equipment is locked. Trigger audible and visual alarms and abnormal status indications.

[0010] Optionally, the above methods also include: A work log is recorded for hot tapping, wherein the work log is used to provide feedback to the user for inspection of the hot tapping operation.

[0011] Secondly, embodiments of the present invention also provide a pressure-activated opening control device, comprising: The acquisition unit is used to acquire the safety threshold for hot tapping of the pipeline, wherein the safety threshold includes the maximum allowable displacement of the drill bit and the pressure change rate threshold. The data acquisition unit is used to acquire real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance when drilling a pipeline under pressure. The operating unit is used to stop the pressurized drilling of the pipeline when the drill bit feed displacement is greater than the maximum allowable displacement of the drill bit or the instantaneous change rate of the drilling resistance data is greater than the pressure change rate threshold at the moment of drilling.

[0012] To achieve the above objectives, according to a third aspect of the present invention, a computer-readable storage medium is provided, the computer-readable storage medium comprising a stored program, wherein, when the program is executed by a processor, the steps of the above-described pressurized aperture control method are implemented.

[0013] To achieve the above objectives, according to a fourth aspect of the present invention, an electronic device is provided, comprising at least one processor and at least one memory connected to the processor; wherein the processor is configured to invoke program instructions in the memory to execute the steps of the above-described pressure-activated aperture control method.

[0014] By employing the above technical solution, the hot tapping control method and related equipment provided by this invention address the lack of a more precise method for drilling pressurized pipelines. This invention obtains safety thresholds for hot tapping of pipelines, including the maximum allowable displacement of the drill bit and a pressure change rate threshold. During hot tapping, real-time data on the drill bit feed displacement and the instantaneous rate of change of drilling resistance are collected. Hot tapping is stopped when the drill bit feed displacement exceeds the maximum allowable displacement or the instantaneous rate of change of drilling resistance exceeds the pressure change rate threshold at the moment of penetration. In this solution, firstly, two objective safety thresholds are preset before operation: a displacement upper limit and a pressure change rate threshold. These two thresholds provide clear data benchmarks for judgment, replacing vague empirical standards. Then, during operation, displacement sensors and pressure sensors collect real-time data on the drill bit feed displacement and resistance change rate, replacing manual auditory and tactile observation. Finally, by continuously comparing real-time data with preset thresholds using logical comparison, a shutdown command is automatically triggered when the real-time displacement reaches or exceeds the upper limit, or when the real-time resistance change rate exceeds its threshold. This principle establishes an automatic control loop of perception-judgment-execution, providing physical limits on the stroke through displacement monitoring and responding instantly by capturing the dynamic characteristics of sudden drops in resistance during drilling. This dual judgment mechanism, with shutdown triggered by either exceeding the displacement or pressure change rate limit, creates redundancy and reduces the risk of over-feeding and over-drilling due to the failure of a single judgment path or factors such as operator experience, fatigue, or misjudgment.

[0015] Correspondingly, the pressurized opening control device, equipment, and computer-readable storage medium provided in the embodiments of the present invention also have the above-mentioned technical effects.

[0016] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and in order to make the above and other objects, features and advantages of the present invention more apparent and understandable, specific embodiments of the present invention are described below. Attached Figure Description

[0017] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 A schematic flowchart of a pressure-controlled opening method provided by an embodiment of the present invention is shown; Figure 2 A schematic diagram of a pressure-controlled opening structure provided by an embodiment of the present invention is shown; Figure 3 This diagram illustrates the composition of a pressurized opening control device according to an embodiment of the present invention. Figure 4 This diagram illustrates the composition of a pressurized opening control electronic device according to an embodiment of the present invention. Detailed Implementation

[0018] Exemplary embodiments of the invention will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the invention are shown in the drawings, it should be understood that the invention may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this invention will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

[0019] To address the lack of a more precise method for drilling pressurized pipelines, embodiments of the present invention provide a pressurized drilling control method, such as... Figure 1 As shown, the method includes: S101. Obtain the safety threshold for hot tapping of the pipeline, wherein the safety threshold includes the maximum allowable displacement of the drill bit and the pressure change rate threshold. In one embodiment, obtaining the safety threshold for hot tapping the pipeline includes: Obtain the operation parameters, which include the inner radius of the pipe, the radius of the drill bit, the pipe wall thickness at the opening, and the safety margin; The maximum allowable displacement of the drill bit is determined based on the operating parameters, wherein the maximum allowable displacement of the drill bit is used to characterize the maximum safe distance that the drill bit is allowed to travel from the point of contact with the outer wall of the pipe; A pressure change rate threshold is set, wherein the pressure change rate threshold is used to characterize the critical rate at which the drilling resistance begins to decrease from a stable cutting state.

[0020] For example, the operational parameters mentioned in the above steps are the basic input information upon which subsequent safety controls rely. The inner radius of the pipe and the drill bit radius define the basic spatial geometric relationship between the cutting tool and the pipe during the drilling operation. The pipe wall thickness at the drilling location specifically refers to the actual measured thickness of the pipe body at the specific location on the pipe where the drilling will take place. The safety margin is an additional, conservative stroke buffer set in advance to accommodate minor deviations in pipe thickness, measurement errors, or other unforeseen fluctuations in operating conditions. The maximum allowable displacement of the drill bit, determined based on these operational parameters, specifically means the maximum absolute travel distance permitted in the feed direction, starting from the moment the drill bit's cutting edge just contacts the outer wall of the pipe and recorded as zero. This distance is determined by directly adding the pipe wall thickness at the drilling location and the safety margin. The set pressure change rate threshold is a key rate criterion used to determine in real time whether the drilling resistance has entered a significant and rapid decline stage due to the impending penetration of the pipe wall from a continuous and stable cutting state. When the instantaneous rate of decrease of resistance reaches or exceeds this critical value, it is considered an important characteristic signal.

[0021] In this application, the preparation stage combines manual input with automated system processing during the implementation of this step. The operator first inputs or selects key operational parameters—the inner radius of the pipe, the drill bit radius, the pipe wall thickness at the borehole, and the safety margin—through the human-machine interface on the equipment. The system, typically a programmable logic controller (PLC), automatically performs an internal calculation after acquiring these parameters. This calculation is straightforward: it adds the input pipe wall thickness at the borehole to the safety margin, and the sum is set as the maximum allowable displacement of the drill bit, thus defining a clear and inviolable physical boundary for the entire borehole stroke. Simultaneously, this embodiment provides a method that balances standardization and flexibility for setting the pressure change rate threshold. The system can store a verified default empirical value for most common pipe materials and operating conditions as this threshold. This default value is essentially based on the typical rate characteristic of the resistance decreasing from its stable cutting average value as the drill bit is about to penetrate the pipe wall, determined through numerous experiments. Furthermore, to ensure that this method can adapt to a wider range of operating scenarios, such as when dealing with pipes made of special materials, non-standard diameters, or specific media pressure conditions, this embodiment allows operators to manually fine-tune and confirm the pressure change rate threshold within a preset adjustable range through the same human-machine interface. For example, for pipes made of particularly tough or particularly flexible materials, the operator can adjust the threshold appropriately within the system's allowed range based on the process manual or past experience, making the entire judgment condition more closely match the physical characteristics of the current operation. This step demonstrates that the control method is not rigid and fixed, but rather has the ability to optimize and adapt parameters for specific applications.

[0022] By employing the aforementioned technical solution, a series of key safety benchmarks were pre-set and quantified before the start of the entire live drilling operation. This step transforms the core judgment criteria in subsequent real-time control from relying entirely on the operator's subjective perception and vague experience to relying on pre-input objective geometric dimensions, measured thickness data, and definable rate thresholds. By calculating and defining the maximum allowable displacement limit of the drill bit, a safe hard limit based on the pipe's structural dimensions was set for the drill bit's physical stroke. By setting or adjusting the pressure change rate threshold, a quantifiable benchmark was prepared to capture the unique, dynamic resistance change characteristics at the moment of drilling through. This threshold setting work based on clear parameters, completed at the front end of the operation, establishes a stable and reliable decision-making benchmark for the entire automated control process. This allows subsequent automatic judgments to be independent of the absolute dependence on the operator's personal state and experience, thus constructing a primary and fundamental protective layer to reduce the operational risks hidden due to insufficient human experience, inconsistent judgment standards, or subjective negligence.

[0023] In one embodiment, determining the maximum allowable displacement of the drill bit based on the operating parameters includes: The maximum allowable displacement of the drill bit is determined based on the sum of the pipe wall thickness at the opening and the safety margin.

[0024] For example, the two core operating parameters upon which this step is based are: the pipe wall thickness at the opening, which refers to the actual thickness of the pipe body at the predetermined opening position obtained through measurement; and the safety margin, which is an additional stroke buffer set in advance to cope with measurement tolerances, material property fluctuations, or other unforeseen factors. The maximum allowable displacement limit of the drill bit determined in this step is specifically obtained by directly adding the aforementioned pipe wall thickness and the safety margin.

[0025] In this application, the implementation of this step involves an automatic, deterministic arithmetic process within the control system. When the operator inputs the specific values ​​of the pipe wall thickness and safety margin at the borehole location via the human-machine interface, the system's controller (programmable logic controller) automatically receives these two parameters. Subsequently, the controller performs an addition operation, summing the pipe wall thickness value and the safety margin value. This calculation process is instantaneous and automatic, requiring no additional manual calculation or intervention from the operator. The calculated sum is directly set and stored by the controller as a key safety threshold for this operation—the maximum allowable displacement of the drill bit. For example, if the input pipe wall thickness is 10 mm and the safety margin is set to 2 mm, the controller will automatically calculate 12 mm and set this 12 mm as the upper limit of the absolute distance the drill bit can travel from the zero-point of contact during this drilling operation. This setting process is entirely based on the input objective data, eliminating inconsistencies and errors that may be introduced by human estimation, ensuring that the displacement safety benchmark for each operation is uniquely and accurately determined based on the measured thickness of the current pipe and the established safety strategy.

[0026] It is important to note that before drilling, calculations must be performed based on the input operating parameters to obtain a crucial theoretical reference value. This calculation is based on the inner radius of the pipe, the drill bit radius, and the pipe wall thickness at the drilling location: Lmin = √(R² - r²) + t Among them, L minThe minimum penetration cutting stroke of the drilling machine is expressed in millimeters (mm); R is the inner radius of the pipe, in millimeters (mm); r is the drill bit radius, in millimeters (mm); and t is the maximum pipe wall thickness at the drilling point, in millimeters (mm). The purpose is to determine the minimum stroke required for the drill bit to theoretically penetrate the pipe, i.e., the minimum theoretical penetration stroke of the drill bit. Calculating this minimum theoretical penetration stroke ensures that the drill bit possesses the basic geometric conditions for penetrating the pipe, providing an important theoretical basis for subsequently setting the actual safety control threshold (the maximum allowable displacement of the drill bit). The maximum displacement limit (Lmax) is set partly based on the same key parameter used in the calculation of the minimum theoretical penetration stroke (Lmin)—the pipe wall thickness (t)—and adds an independent safety margin (ΔL). The calculation of Lmin involves more complex geometric relationships (R, r, t) to verify the theoretical feasibility of the drill bit's penetration capability. The setting of Lmax is more direct and conservative; it only uses the pipe wall thickness (t) from the Lmin calculation and then adds an additional safety buffer (ΔL). The purpose of this approach is to set a safety red line further back than the theoretical minimum penetration position, so as to ensure that even if there are pipe ellipticity, measurement errors, or slight equipment deviations, the drill bit will have completed the penetration before reaching Lmax, thereby triggering the protection in advance and absolutely avoiding "over-drilling".

[0027] By employing the aforementioned technical solution, a rigid upper limit for the stroke is directly defined by adding the objective physical dimension of the pipe wall thickness to a preset safety margin, a conservative engineering value. This provides a clear data source and a distinct physical meaning for setting the safety threshold. This method establishes an insurmountable physical boundary for the maximum stroke of the drill bit, determined by both the pipe's structure and preset safety rules. It avoids the arbitrariness and inaccuracy that can result from operators subjectively estimating the safe stroke based on experience, transforming the setting of stroke limits from an experience-based approach into a standardized operation based on measured data and fixed rules. This provides a stable, reliable, and precisely corresponding benchmark for subsequent real-time displacement monitoring, thus offering a fundamental guarantee against the risk of excessive drill bit feed due to improper stroke limit settings.

[0028] S102. When drilling a pipe under pressure, collect real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance. In one embodiment, the above method further includes: The data at the moment the drill bit contacts the outer wall of the pipe at the opening is recorded as the initial value for the pressurized drilling operation.

[0029] For example, the initial value mentioned in this step specifically refers to a reference data recorded by the system at the exact moment the drill bit's cutting edge contacts the outer surface of the pipe to be drilled, just before the drill bit begins its cutting feed. This data is primarily used to establish the absolute reference origin for all subsequent displacement measurements.

[0030] In this application, the implementation of this step involves a clear combination of manual operation and automatic system calibration. The operator first manually manipulates the live drilling equipment, slowly bringing the drill bit (drill cutter) mounted on the spindle closer to the pipe until its cutting edge makes physical contact with the pipe's outer wall. When contact occurs, a contact detection signal is typically triggered. The system controller, or programmable logic controller, immediately issues a specific command to the displacement detection unit upon recognizing this valid contact signal. This command forces the real-time reading of the displacement detection unit (e.g., a linear scale or encoder) to zero at that moment. After this operation, this "zero point" position is permanently established and recorded as the starting point for displacement measurement during this live drilling operation, i.e., the initial value of the operation. Subsequently, any feed displacement data collected in real-time by the displacement detection unit throughout the drilling process is the absolute forward distance calculated relative to this zero point position. This process provides a unified and reliable physical benchmark for subsequent accurate measurement of how far the drill bit has "traveled."

[0031] By employing the aforementioned technical solution, and establishing a measurement benchmark based on physical contact events before performing critical safety monitoring, all subsequently acquired real-time displacement data ensures a consistent and traceable reference starting point. This method fundamentally eliminates displacement measurement benchmark drift or errors that may be caused by equipment mechanical clearances, installation position differences, or residual data from previous operations. It transforms displacement monitoring from a relative measurement that may contain cumulative errors into an absolute measurement starting from a clearly defined physical location, thereby significantly improving the accuracy and reliability of the displacement data itself. This lays a solid foundation for reliably comparing real-time feed displacement with preset maximum displacement limits, enabling the effective implementation of displacement-based safety control.

[0032] In one embodiment, the step of acquiring the instantaneous rate of change of drill bit feed displacement and drilling resistance data in real time when performing pressurized drilling on a pipeline includes: When drilling a pipe under pressure, real-time drill bit feed displacement and resistance signals are collected, wherein the resistance signal is used to reflect the resistance encountered by the drill bit during the drilling process. The instantaneous rate of change of the drilling resistance data is determined based on the continuous resistance signal.

[0033] In this application, the implementation process of this step involves a synchronous data sensing and processing flow that continues to operate after the drilling operation begins. When the operator issues the start command and the drill bit begins to rotate and feed into the pipe, the system controller (programmable logic controller) immediately activates its high-speed data acquisition function. The controller simultaneously executes two acquisition tasks at a very short and fixed time interval: first, it reads the actual distance the drill bit has moved from the initial zero point of the operation from the displacement detection unit in real time; this continuously changing value is the real-time drill bit feed displacement. Second, it reads an electrical signal reflecting the degree of resistance encountered by the drill bit when cutting the material from the pressure detection unit in real time; this continuous raw electrical signal is the resistance signal. After acquiring the continuous raw resistance signal, the controller does not directly use its raw value for judgment, but performs real-time dynamic calculations. The controller calculates the percentage change in the resistance signal value acquired at the current sampling time and the resistance signal value recorded at the previous sampling time within a unit of time. By using this differential calculation method on continuous signals, the controller transforms the original resistance signal into a quantitative indicator that characterizes the instantaneous rate of decrease in resistance—the instantaneous rate of change of drilling resistance data. For example, when the drill bit is steadily cutting the pipe wall, this rate of change fluctuates within a low range; however, when the drill bit is about to penetrate the pipe wall, the resistance decreases sharply, and the rate of change increases dramatically to a significant value. This calculation process is continuous, automatic, and updated in real time, providing the system with key parameters to characterize the dynamic features of the cutting state.

[0034] Specifically, the instantaneous rate of change of the drilling resistance data is calculated based on the following formula: K p =(P n-1 -P n ) / Δt×100% In the formula: K p P represents the instantaneous rate of change of drilling resistance data, in % / ms. n-1 The cutting resistance detection value (pressure / torque / current calibration value) of the previous sampling point; P nThe current sampling point represents the detected cutting resistance value (pressure / torque / current calibration value); Δt is the sampling and calculation period, fixed at 10ms (to adapt to the sudden drop in resistance at the moment of drilling penetration, balancing real-time detection and data stability). Its value reflects the instantaneous rate of change of the resistance signal between consecutive sampling points. Specifically, the instantaneous rate of change of the drilling resistance data is determined as follows: Continuous resistance signals are acquired, the difference between the resistance signal value of the previous sampling point and the resistance signal value of the current sampling point is calculated, and this difference is compared with a fixed sampling and calculation period to obtain the instantaneous rate of change of the drilling resistance data. The sampling and calculation period is set to a fixed value that matches the sudden drop in resistance at the moment of drilling penetration, balancing real-time detection and data stability.

[0035] By employing the aforementioned technical solution, and through the synchronous and continuous acquisition of raw displacement and resistance signals, and the real-time conversion of the resistance signals into a form representing their rate of change, this step provides a high-frequency updated, quantitative data source for subsequent automatic judgment and decision-making. It replaces the human eye's approximate observation of scales with precise measurement of physical position using displacement sensors; and replaces the subjective, general, experiential judgment of vibration by hand and cutting sound by ear with the sensitive perception of cutting resistance and real-time calculation of its rate of change using pressure sensors. This approach enables the system to capture the precise position of the drill bit feed and the subtle dynamic changes in the drilling state (especially the penetration characteristic from stable cutting to sudden loss of resistance) with precision and speed far exceeding human senses. This establishes a reliable data perception layer for the entire control method, transforming qualitative and intermittent on-site observation relying on the operator's personal senses into quantitative and continuous data monitoring executed by an automated system. This provides a direct information basis for reducing the risk of misjudgment due to delays, unclear identification, or distraction in human perception.

[0036] S103. If the drill bit feed displacement is greater than the maximum allowable displacement of the drill bit or the instantaneous change rate of the drilling resistance data is greater than the pressure change rate threshold at the moment of drilling, stop the pressurized drilling of the pipeline.

[0037] In this application, the implementation of this step involves the controller continuously performing high-speed logic operations and instantly outputting control commands. During continuous drilling operations, the controller uses the maximum allowable displacement limit and pressure change rate threshold set in the previous steps as fixed benchmarks. Simultaneously, it compares the instantaneous change rate of the drill bit feed displacement and drilling resistance data, which are collected and calculated in real time, with their respective benchmarks hundreds of times per second. This comparison follows a clear "OR" logic rule: the controller determines in parallel whether the real-time displacement has reached or exceeded the displacement limit and whether the real-time resistance change rate has reached or exceeded its preset threshold. As long as either of these two conditions is met, the controller immediately generates a control command with the highest priority, without waiting for the result of the other condition. This command is directly sent to the control end of the power source driving the drill bit feed, for example, causing the emergency shut-off valve of the hydraulic system to act immediately, or causing the power contactor of the drive motor to disconnect instantaneously. The result of this control action is that, regardless of the cutting state of the drill bit, its mechanical feed motion into the pipeline is forcibly stopped, thereby achieving the operation of "stopping pressurized drilling of the pipeline". For example, in one scenario, due to tool wear or other reasons, the drill bit may reach the upper limit set based on the pipe wall thickness before the resistance change reaches the threshold, causing the system to stop. In another scenario, the drill bit may suddenly penetrate the pipe wall before the displacement reaches the upper limit, causing a sharp drop in resistance and exceeding the rate of change threshold, also causing the system to stop. Both paths lead to the same termination action.

[0038] By employing the aforementioned technical solution, a rapid response mechanism with redundancy is constructed by establishing a dual judgment channel linked by "OR" logic and granting it the highest authority to immediately trigger a shutdown action when either condition is met. This method eliminates reliance on a single sensor signal or a single judgment logic for assessing penetration or over-drilling risks, thereby reducing the likelihood of the entire protection function failing due to the failure of a specific sensor channel, the lack of obvious specific physical characteristics, or a slight deviation in a single threshold setting. It transforms the complex process of instantly coordinating auditory and tactile senses and making decisions in manual operation into a millisecond-level deterministic electronic logic judgment and execution by the controller based on clearly defined rules. This introduces an automatic safety intervention layer independent of the operator's reaction speed and on-site psychological state into the entire live drilling operation, thereby reducing the safety risks caused by human hesitation, misjudgment, or failure to stop the machine in time due to overlooking a single phenomenon.

[0039] In one embodiment, the above method further includes: When hot tapping of the pipeline is stopped, the operation privilege of the hot tapping equipment is locked. Trigger audible and visual alarms and abnormal status indications.

[0040] For example, the lockout operation permission mentioned in this step refers to the system taking measures to prevent any unexpected equipment restart or feed operation after triggering the stop action; triggering the audible and visual alarm and abnormal status indication means that the system simultaneously activates visual and auditory warning devices to clearly inform the operator that the equipment has entered an abnormal shutdown state.

[0041] In this application, the implementation of this step involves two parallel safety responses automatically triggered immediately after the controller executes the stop command. When the controller outputs a signal to force the drill bit to stop feeding due to meeting the shutdown conditions, its control logic immediately enters a subsequent safety processing phase. First, regarding the locking operation permissions, the controller implements a comprehensive hardware and software locking strategy. At the software level, the controller sets a specific internal status flag to "locked," which prevents the controller from processing any subsequent routine operation commands from the operating handle or human-machine interface intended to start the equipment or control the feed. At the hardware level, the controller sends a signal to an independent hardware interlocking module, driving the interlocking relay in that module to activate, thereby cutting off the operation control loop from the physical circuitry and forming a physical isolation barrier parallel to the software state. Second, regarding triggering audible and visual alarms and abnormal status indications, the controller outputs a signal to a dedicated audible and visual alarm device at the moment of shutdown, driving a red warning light to illuminate continuously and a buzzer to sound continuously. This prominent audiovisual approach clearly indicates on-site that the equipment has automatically stopped for safety reasons and is in a pending confirmation state. These two actions—access control and alarm indication—occur almost simultaneously, together constituting the immediate system response after a shutdown event.

[0042] By employing the aforementioned technical solutions, after automatically determining and shutting down the system, two additional layers of security are added: mandatory access restrictions and explicit status notifications. Through dual hardware and software locking of operating permissions, accidental restarts due to operator error, misoperation, or misunderstanding of equipment status are effectively prevented before the cause of the shutdown is confirmed and addressed, thus forcibly maintaining the system in a safe "suspended" state. Simultaneously triggering audible and visual alarms clearly and intuitively communicates changes in the system's internal status to on-site personnel, compensating for the potential for overlooking simple instrument displays. This ensures that personnel are promptly aware that automatic protection has been triggered, allowing for rapid attention and intervention in necessary follow-up verification processes. These measures collectively transform a simple automatic shutdown into a safety event requiring clear recognition and proactive intervention, reducing the operational risks that may arise from improper post-shutdown handling or unclear information communication.

[0043] In one embodiment, the above method further includes: A work log is recorded for hot tapping, wherein the work log is used to provide feedback to the user for inspection of the hot tapping operation.

[0044] In this application, the implementation of this step is manifested in the system controller's automatic data archiving and storage function throughout the operation and when key events are triggered. During live drilling operations, especially after the system automatically triggers a feed stop, the controller proactively packages and saves a series of key data from the operation into a structured record, namely the work log. This log typically records, but is not limited to: the specific triggering conditions that led to the automatic stop (whether the displacement reached the upper limit or the pressure change rate exceeded the threshold), the precise time of the stop event, the real-time drill bit feed displacement data sequence at the moment of stop and for a period prior, and the corresponding drilling resistance or resistance change rate data sequence. This data is stored by the controller in its non-volatile memory or connected storage devices. After recording, operators or maintenance personnel can access the system and retrieve this work log through a human-machine interface or a dedicated handheld terminal. The data in the log can be presented to the user in the form of lists or graphs for detailed review and analysis.

[0045] By employing the aforementioned technical solution, an objective data recording function for the entire process is added on top of automated control, providing crucial support for operational transparency and post-event analysis. By automatically generating work logs containing specific triggering reasons and detailed process data, the execution results and safety intervention events of an operation are transformed from a simple on-site state into an electronic record that can be stored long-term and reviewed at any time. This allows users (such as operators, safety officers, or maintenance engineers) to, after the operation, no longer rely on the immediate on-site situation, but instead use accurate data records to verify the rationality of automatic shutdown, analyze equipment operating status, or troubleshoot potential anomalies. This approach reduces reliance on operators' on-site instantaneous memory and verbal descriptions, providing a reliable data-driven basis for assessing operational safety, optimizing process parameters, and performing equipment maintenance, thereby improving the traceability and manageability of the entire operation process.

[0046] like Figure 2 As shown, the system includes a handle 1, a drilling spindle 2, a motor 3, a drilling connector 4, a drilling cutter 5, a center drill 6, a displacement sensor 7, and a pressure transmitter 8. The displacement sensor 7 is linked to the drilling spindle 2 and is used to detect its displacement. The pressure transmitter 8 is mounted on the thrust bearing seat of the drilling spindle 2 or on the hydraulic cylinder of the hydraulic system driving its feed, and is used to detect drilling resistance. A programmable logic controller (PLC) is connected to the displacement sensor 7, the pressure transmitter 8, the motor 3, a hardware interlock module, a physical reset switch, an audible and visual alarm device, and a handheld terminal, forming a complete closed loop of detection, control, execution, and alarm functions.

[0047] The following illustrates a specific embodiment of this application: Before starting the drilling operation, turn on the main power supply to the equipment, and all parts of the system will complete a self-check. After the self-check is successful, the system enters standby mode. The operator inputs the operating parameters through the human-machine interface, including the inner radius of the pipe, the drill bit radius, the pipe wall thickness at the drilling location, the safety margin, and the pressure change rate threshold. The system automatically calculates the minimum theoretical penetration stroke of the drill bit and the maximum allowable displacement of the drill bit, and initializes the sampling parameters of the displacement detection unit and the pressure detection unit.

[0048] The operator manually controls the equipment to bring the drill bit into contact with the outer wall of the pipe at the drilling location. The system records the data at this moment of contact as the initial value for pressurized drilling. Subsequently, the operator issues a drilling start command, and the system controls the drill bit to begin feeding, while simultaneously initiating continuous data acquisition to obtain the drill bit's feed displacement and resistance signals in real time at a fixed sampling period.

[0049] During drilling, the system performs real-time calculations and conditional judgments based on the collected signals. On one hand, it calculates the actual feed displacement based on the real-time collected drill bit feed displacement and compares it with the preset maximum allowable drill bit displacement limit. On the other hand, based on the continuous resistance signal, it calculates the instantaneous rate of change of drilling resistance data in real time and determines whether it reaches the preset pressure change rate threshold. If the actual feed displacement reaches or exceeds the maximum displacement limit, or the instantaneous rate of change of drilling resistance data reaches or exceeds the pressure change rate threshold, the subsequent steps are executed immediately.

[0050] Once any of the above conditions are met, the system immediately outputs a shutdown command to the power source, controlling the execution components to forcibly stop the drill bit feed, thus achieving a physical shutdown action.

[0051] Upon ceasing live tapping of the pipeline, the system triggers an audible and visual alarm and an abnormal status indication, and locks the operating privileges of the live tapping equipment. This locking includes both software and hardware locking. Software locking means the system refuses to accept new feed or start commands at the software level; hardware locking means cutting off the control signal loop by controlling an interlocking relay, thus creating physical isolation.

[0052] Following this, the manual review and data verification phase begins. Operators retrieve the operational data curves recorded by the system through the human-machine interface, and, in conjunction with the on-site conditions, verify the reason for the equipment's automatic termination to confirm whether it was a normal penetration.

[0053] If manual verification confirms that everything is correct, the operator issues a reset command via a dedicated physical reset switch. Upon receiving a valid physical reset command, the system clears its internal locked state, restores software command reception privileges, releases the isolation of the hardware control loop, and disables the audible and visual alarms. The system then unlocks and returns to an operable state.

[0054] If manual verification reveals abnormalities such as sensor malfunction or equipment failure, operators must first troubleshoot and clear the alarm through the human-machine interface. After the abnormality is resolved, the operator can then perform a reset operation through the physical reset switch.

[0055] Furthermore, as a response to the above Figure 1 In addition to the method shown, this embodiment of the invention also provides a pressure-operated opening control device for the above-mentioned... Figure 1 The method shown is implemented accordingly. This device embodiment corresponds to the foregoing method embodiment. For ease of reading, this device embodiment will not repeat the details of the foregoing method embodiment, but it should be clear that the device in this embodiment can implement all the contents of the foregoing method embodiment. Figure 3 As shown, the device includes: an acquisition unit 21, a collection unit 22, and an operation unit 23, wherein... The acquisition unit 21 is used to acquire the safety threshold for hot tapping of the pipeline, wherein the safety threshold includes the maximum allowable displacement of the drill bit and the pressure change rate threshold. The acquisition unit 22 is used to acquire real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance when the pipeline is being opened under pressure. The operation unit 23 is used to stop the pressurized drilling of the pipeline when the feed displacement of the drill bit is greater than the maximum allowable displacement of the drill bit or the instantaneous change rate of the drilling resistance data is greater than the pressure change rate threshold at the moment of drilling.

[0056] The processor contains a kernel, which retrieves the corresponding program unit from memory. One or more kernels can be configured, and by adjusting kernel parameters, a method for controlling borehole drilling under pressure can be implemented, addressing the lack of a more precise method for drilling pressurized pipes.

[0057] This invention provides a computer-readable storage medium including a stored program that, when executed by a processor, implements the pressurized aperture control method.

[0058] This invention provides a processor for running a program, wherein the program executes the pressurized opening control method during runtime.

[0059] This invention provides an electronic device, which includes at least one processor and at least one memory connected to the processor; wherein the processor is used to call program instructions in the memory to execute the pressure-activated aperture control method described above. This invention provides an electronic device 30, such as... Figure 4 As shown, the electronic device includes at least one processor 301, and at least one memory 302 and bus 303 connected to the processor; wherein, the processor 301 and the memory 302 communicate with each other through the bus 303; the processor 301 is used to call program instructions in the memory to execute the above-mentioned pressure-activated aperture control method.

[0060] The smart electronic devices mentioned in this article can be PCs, tablets, mobile phones, etc.

[0061] This application also provides a computer program product that, when executed on a process management electronic device, is suitable for executing a program that initializes the above-described pressurized opening control method steps.

[0062] It should be noted that the descriptions of each embodiment in the above embodiments have different focuses. For parts that are not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0063] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program products. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0064] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program products according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create a machine for implementing the flowchart illustrations. Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0065] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0066] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified in one or more boxes.

[0067] This application also provides a computer program product, which includes computer software instructions that, when executed on a processing device, cause the processing device to perform actions such as... Figure 1 The control flow of the memory in the corresponding embodiment.

[0068] A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium may be any available medium that a computer can store or a data storage device such as a server or data center that integrates one or more available media. The available medium may be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0069] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0070] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, or indirect coupling or communication connection between apparatuses or units, and may be electrical, mechanical, or other forms.

[0071] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment, depending on actual needs.

[0072] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or as a software functional unit.

[0073] If the integrated unit is implemented as a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods of the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0074] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A method for controlling pressurized opening, characterized in that, include: Obtain a safety threshold for hot tapping a pipeline, wherein the safety threshold includes the maximum allowable displacement of the drill bit and a pressure change rate threshold; Under the condition of hot drilling of pipeline, real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance are collected. If the drill bit feed displacement is greater than the maximum allowable displacement of the drill bit or the instantaneous change rate of the drilling resistance data is greater than the pressure change rate threshold at the moment of drilling, the pressurized drilling of the pipeline shall be stopped.

2. The method according to claim 1, characterized in that, The process of obtaining the safety threshold for hot tapping of the pipeline includes: Obtain the operation parameters, which include the inner radius of the pipe, the radius of the drill bit, the pipe wall thickness at the opening, and the safety margin; The maximum allowable displacement of the drill bit is determined based on the operating parameters, wherein the maximum allowable displacement of the drill bit is used to characterize the maximum safe distance that the drill bit is allowed to travel from the point of contact with the outer wall of the pipe; A pressure change rate threshold is set, wherein the pressure change rate threshold is used to characterize the critical rate at which the drilling resistance begins to decrease from a stable cutting state.

3. The method according to claim 2, characterized in that, Determining the maximum allowable displacement of the drill bit based on the operating parameters includes: The maximum allowable displacement of the drill bit is determined based on the sum of the pipe wall thickness at the opening and the safety margin.

4. The method according to claim 1, characterized in that, Also includes: The data at the moment the drill bit contacts the outer wall of the pipe at the opening is recorded as the initial value for the pressurized drilling operation.

5. The method according to claim 4, characterized in that, The method of collecting real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance during pressurized drilling of pipelines includes: When drilling a pipe under pressure, real-time drill bit feed displacement and resistance signals are collected, wherein the resistance signal is used to reflect the resistance encountered by the drill bit during the drilling process. The instantaneous rate of change of the drilling resistance data is determined based on the continuous resistance signal.

6. The method according to claim 1, characterized in that, Also includes: When hot tapping of the pipeline is stopped, the operation privilege of the hot tapping equipment is locked. Trigger audible and visual alarms and abnormal status indications.

7. The method according to claim 1, characterized in that, Also includes: A work log is recorded for hot tapping, wherein the work log is used to provide feedback to the user for inspection of the hot tapping operation.

8. A pressure-operated opening control device, characterized in that, Also includes: The acquisition unit is used to acquire the safety threshold for hot tapping of the pipeline, wherein the safety threshold includes the maximum allowable displacement of the drill bit and the pressure change rate threshold. The data acquisition unit is used to acquire real-time data on the instantaneous rate of change of drill bit feed displacement and drilling resistance when drilling a pipeline under pressure. The operating unit is used to stop the pressurized drilling of the pipeline when the drill bit feed displacement is greater than the maximum allowable displacement of the drill bit or the instantaneous change rate of the drilling resistance data is greater than the pressure change rate threshold at the moment of drilling.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium includes a stored program, wherein, when the program is executed by a processor, it implements the steps of the pressurized opening control method as described in any one of claims 1 to 7.

10. An electronic device, characterized in that, The electronic device includes at least one processor and at least one memory connected to the processor; wherein the processor is configured to invoke program instructions in the memory to execute the steps of the pressurized opening control method as described in any one of claims 1 to 7.

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