Automatic control method and system for safe rising and discharging of drilling mud pump after connection of stand column

Abstract

The invention belongs to the technical field of oil and gas development, and particularly discloses an automatic control method and system for safe rising and discharging of a drilling mud pump after stand column connection, and the method comprises the steps that target discharging capacity, initial discharging capacity and a safe pressure threshold value are set, in response to completion of drill rod connection, a rising and discharging program is started, and an inner cavity of a drill column is filled with the initial discharging capacity; collecting the pressure of the riser in real time, and calculating the predicted pressure of the riser corresponding to the next step displacement; the predicted riser pressure is compared with a safety pressure threshold value, and rising and discharging are controlled according to the comparison result; and the predicted riser pressure corresponding to each step displacement is calculated repeatedly, and multiple times of rising and discharging control are carried out according to the comparison result of the predicted riser pressure corresponding to each step displacement and the safety pressure threshold value until the drilling fluid displacement reaches the target displacement. The problems that a manual experience control mode lags in response, pressure fluctuation is large due to manual operation, and misoperation is prone to occurring are solved, and the problem that simple program control is prone to failure under the complex well condition is solved.

Description

Technical Field

[0001] This invention belongs to the field of oil and gas development technology, specifically relating to an automatic control method and system for the safe lifting and discharge of drilling mud pumps after the drilling column is connected. Background Technology

[0002] During drilling operations, as the drilling depth increases, drill pipe needs to be continuously connected to extend the wellbore. Each time a drill string is connected, the mud pump circulation must be paused. If the mud pump is restarted after the drill string connection is complete, and the discharge rate instantly returns to the set rate, the drilling fluid's inertia will generate strong water hammer pressure (predicted riser pressure) within the pipe. This could potentially penetrate weak formations, directly causing a lost-loop well accident, resulting in a large loss of drilling fluid. Simultaneously, it will exert a significant impact on downhole precision tools such as the measurement-while-drilling (MWD) instrument and drill string, causing damage or even failure to their internal structures. Strong pressure fluctuations can also disrupt the wellbore's stress balance, leading to stuck pipe accidents and, in severe cases, wellbore collapse. This not only significantly increases drilling costs but may also delay the entire drilling project.

[0003] Currently, the mud pump's pumping control methods after the column is installed are mainly divided into the following two types: one is manual experience control, where the driller manually operates the pumping knob to increase the discharge rate in steps based on experience; the other is simplified program control, which linearly increases the discharge rate to the target discharge rate by setting a preset discharge rate. Summary of the Invention

[0004] The purpose of this invention is to solve the problems of slow response of manual experience control, large pressure fluctuations caused by human operation, and easy operation errors, as well as the problems of simple program control, which, although preset with a fixed pumping curve, does not take into account real-time well conditions such as well depth, mud properties, and annular cuttings concentration, and is prone to failure under complex well conditions. The invention proposes an automatic control method and system for safe pumping of drilling mud pump after connection of the standpipe.

[0005] The technical solution of the present invention is as follows: Firstly, an automatic control method for the safe lifting and discharge of drilling mud pump after connection to a drilling column, comprising the following steps: Set the target displacement, initial displacement, and safety pressure threshold. In response to the completion of drill pipe connection, the lift-displacement program is automatically started, injecting drilling fluid at the initial displacement to fill the drill string cavity. Real-time acquisition of riser pressure, and construction of a prediction model based on fluid mechanics and drilling engineering theory to calculate the predicted riser pressure corresponding to the next step displacement; The predicted riser pressure is compared with the safe pressure threshold, and the riser discharge is controlled based on the comparison results. Repeatedly calculate the predicted riser pressure corresponding to each step displacement, and control the riser discharge based on the comparison results between the predicted riser pressure corresponding to each step displacement and the safe pressure threshold until the drilling fluid discharge reaches the target discharge, thus completing the automatic control of safe riser discharge of the drilling mud pump after the stand is connected.

[0006] As a preferred option, the initial displacement is 10% of the target displacement.

[0007] Preferably, the formula for calculating the predicted riser pressure is:

[0008]

[0009]

[0010]

[0011]

[0012] in, This indicates the predicted riser pressure. Indicates the internal and external wear of the drill pipe. This indicates the wear and tear inside and outside the drill collar. This indicates the pressure drop across the drill bit. This represents the change in flow velocity caused by a change in displacement. Indicates the nozzle flow coefficient. Indicates the density of the mud. Indicates the equivalent diameter of the nozzle. Indicates displacement per revolution. Indicates the length of the drill pipe. Indicates the inner diameter of the drill pipe. Indicates the outer diameter of the drill pipe. Indicates well diameter. Indicates viscosity. Indicates the length of the drill collar. Indicates the inner diameter of the drill collar. Indicates the outer diameter of the drill collar. This indicates the discharge rate inside the drill pipe. Indicates screw torque. This indicates the annular displacement.

[0013] Preferably, the step of comparing the predicted riser pressure with a safe pressure threshold and controlling the riser flow based on the comparison result is as follows: If the predicted riser pressure is greater than or equal to the preset safe pressure threshold, an alarm will be triggered and the process will be terminated. If the predicted riser pressure is less than the preset safe pressure threshold, the riser pressure is classified into different levels and the displacement increase gradient is determined according to the ratio of the predicted riser pressure to the safe pressure threshold. If the predicted riser pressure is less than 0.6 times the preset safety pressure threshold, an alarm will be triggered and the process will be terminated to check for any abnormal operating conditions.

[0014] Preferably, the classification based on the ratio of predicted riser pressure to a safe pressure threshold is as follows: If the predicted riser pressure is less than or equal to 0.7 times the safe pressure threshold and greater than 0.6 times the safe pressure threshold, then it is a safe zone. If the predicted riser pressure is less than or equal to 0.8 times the safe pressure threshold and greater than 0.7 times the safe pressure threshold, it is classified as pressure level one. If the predicted riser pressure is less than or equal to 0.9 times the safe pressure threshold and greater than 0.8 times the safe pressure threshold, it is classified as pressure level two. If the predicted riser pressure is less than 1 times the safe pressure threshold but greater than 0.9 times the safe pressure threshold, it is classified as pressure level three.

[0015] Preferably, the determination of the displacement increase gradient specifically involves: The safe zone allows for rapid evacuation, with an evacuation rate of 10% to 15%. The pressure level is maintained at a stable discharge rate, with a discharge rate of 5% to 10%. The pressure level is limited to two stages, with the discharge range being 1% to 5%. The pressure level three prohibits increasing the discharge rate; maintain the current discharge rate until the riser pressure stabilizes.

[0016] As a preferred method, after each rise and discharge, the error value between the riser pressure and the predicted riser pressure is calculated, and the error value is used to correct the parameters of the prediction model based on fluid mechanics and drilling engineering theory.

[0017] The beneficial effects of this invention are: This invention uses real-time prediction of riser pressure and the construction of a riser control algorithm to precisely control the increase in discharge rate at each step, reducing pressure fluctuation errors caused by manual control. At the same time, the algorithm dynamically corrects the discharge curve based on sensor data, reducing delay and water hammer effect, making the riser process efficient and safe, and improving drilling efficiency.

[0018] Secondly, an automatic control system for the safe lifting and discharge of drilling mud pumps after connection to the drilling column includes: The startup module is used to set the target displacement, initial displacement and safety pressure threshold. In response to the completion of drill pipe connection, the lift-displacement program is automatically started to inject drilling fluid to fill the drill string cavity with the initial displacement. The acquisition module is used to acquire riser pressure in real time and build a prediction model based on fluid mechanics and drilling engineering theory to calculate the predicted riser pressure corresponding to the next step displacement. The control module is used to compare the predicted riser pressure with the safe pressure threshold and control the riser and exhaust based on the comparison result. The execution module is used to repeatedly calculate the predicted riser pressure corresponding to each step displacement, and perform multiple rise control based on the comparison results of the predicted riser pressure corresponding to each step displacement and the safe pressure threshold, until the drilling fluid displacement reaches the target displacement, thus completing the automatic control of safe rise of the drilling mud pump after the stand is connected.

[0019] Thirdly, an electronic device is provided, comprising: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the method as described in the first aspect.

[0020] Fourthly, a non-transitory computer-readable storage medium is provided that stores computer instructions for causing a computer to perform the method as described in the first aspect. Attached Figure Description

[0021] Figure 1 The diagram shows an automatic control method for the safe lifting and discharge of drilling mud pumps after connection to the support column.

[0022] Figure 2 The diagram shows the flowchart for determining the dynamic threshold for mud pump lifting and discharge. Detailed Implementation

[0023] Exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the embodiments shown and described in the drawings are merely exemplary and are intended to illustrate the principles and spirit of the invention, and are not intended to limit the scope of the invention.

[0024] Example 1: This invention aims to provide an adaptive, high-precision automatic control method. By establishing a dynamic pressure prediction model and intelligent adjustment algorithm, it achieves a smooth, shock-free, and stable increase in mud pump discharge after the drilling column is connected, with minimal pressure fluctuations. Simultaneously, this method dynamically adjusts the prediction model based on real-time collected multi-source data such as well depth and mud rheological parameters, thereby achieving an automatic and safe pumping control method adaptable to different well depths, effectively ensuring the stability and safety of drilling operations. Figure 1 As shown, an automatic control method for the safe lifting and discharge of drilling mud pump after connection to the drilling column includes the following steps: S1. Set the target displacement, initial displacement and safety pressure threshold. In response to the completion of drill pipe connection, the lift-displacement program is automatically started, injecting drilling fluid at the initial displacement to fill the drill string cavity. In this embodiment, a high-precision sensor is used to detect the drill pipe connection status. When the sensor detects that the drill pipe connection is complete, it sends a completion signal to the control system. Upon receiving this signal, the control system automatically initiates the pump-up procedure, starting to regulate the drilling fluid discharge rate. After the pump-up procedure is initiated, the system starts at 10% of the target discharge rate to fill the cavity of the new drill string. This avoids significant pressure shocks to the downhole caused by a sudden large flow of drilling fluid, preventing risks such as wellbore instability. Assuming the target discharge rate is... Then the initial displacement The well depth is monitored and collected in real time using downhole sensors. riser pressure Pressure prediction calculations are performed based on parameters such as drilling fluid density and viscosity, and a safe pressure threshold is determined based on design and adjacent well parameters. .

[0025] S2. Real-time acquisition of riser pressure, and construction of a prediction model based on fluid mechanics and drilling engineering theory to calculate the predicted riser pressure corresponding to the next step displacement; In this embodiment, the predicted riser pressure refers to the additional pressure generated downhole due to factors such as fluid inertia and viscosity when the drilling fluid discharge rate changes. The formula for calculating the predicted riser pressure is as follows:

[0026]

[0027]

[0028]

[0029]

[0030] in, This indicates the predicted riser pressure. Indicates the internal and external wear of the drill pipe. This indicates the wear and tear inside and outside the drill collar. This indicates the pressure drop across the drill bit. This represents the change in flow velocity caused by a change in displacement. Indicates the nozzle flow coefficient. Indicates the density of the mud. Indicates the equivalent diameter of the nozzle. Indicates displacement per revolution. Indicates the length of the drill pipe. Indicates the inner diameter of the drill pipe. Indicates the outer diameter of the drill pipe. Indicates well diameter. Indicates viscosity. Indicates the length of the drill collar. Indicates the inner diameter of the drill collar. Indicates the outer diameter of the drill collar. This indicates the discharge rate inside the drill pipe. Indicates screw torque. This indicates the annular displacement.

[0031] S3. Compare the predicted riser pressure with the safe pressure threshold, and control the riser flow based on the comparison results; In this embodiment, the predicted riser pressure is compared with the safe pressure threshold, and the riser discharge is controlled based on the comparison result, specifically as follows: If the predicted riser pressure is less than 1 times the preset safe pressure threshold but greater than 0.9 times the preset safe pressure threshold, it indicates that continuing to increase the discharge rate may cause downhole safety problems. At this time, the discharge operation is suspended, and the current discharge rate is maintained until the riser pressure stabilizes. If the riser pressure is greater than or equal to the safe pressure threshold or less than 0.6 times the safe pressure threshold, an alarm is triggered and the process is terminated. If the predicted riser pressure is less than or equal to 0.9 times the preset safety pressure threshold, it means that the current increase in displacement will not pose a threat to downhole safety. The level is classified and the displacement increase gradient is determined based on the ratio of riser pressure to the safety pressure threshold.

[0032] In this embodiment, as Figure 2 As shown, the pressure levels are determined based on the ratio of riser pressure to the safe pressure threshold, thereby determining the dynamic threshold for mud pump discharge. Specifically, the predicted riser pressure is... With safety pressure threshold The pressure levels are compared and divided into four categories: safe zone, pressure level one, pressure level two, and pressure level three. If the predicted riser pressure is less than or equal to 0.7 times the safe pressure threshold but greater than 0.6 times the safe pressure threshold, it is considered a safe zone. In this case, a rapid increase in discharge capacity is permitted, with a set discharge increase range. An increase of 10% to 15% is expected. If the predicted riser pressure is less than or equal to 0.8 times the safe pressure threshold but greater than 0.7 times the safe pressure threshold, it is classified as pressure level one. In this case, the riser pressure is increased smoothly, and the set riser pressure range is maintained. The increase should be between 5% and 10%, with the specific range adjusted according to the on-site situation. If the predicted riser pressure is less than or equal to 0.9 times the safe pressure threshold but greater than 0.8 times the safe pressure threshold, it is classified as pressure level two. In this case, the riser pressure is restricted, and the set riser pressure range is limited. The increase should be between 1% and 5%, with the specific range adjusted according to the on-site situation. If the predicted riser pressure is less than 1 times the safe pressure threshold but greater than 0.9 times the safe pressure threshold, it is pressure level three. In this case, it is forbidden to increase the discharge rate and the current discharge rate should be maintained.

[0033] This invention designs an adaptive pumping algorithm that can automatically generate a pumping curve based on a safe pressure threshold, ensuring that the pumping capacity of the mud pump can increase steadily.

[0034] S4. Repeatedly calculate the predicted riser pressure corresponding to each step displacement, and control the riser discharge based on the comparison between the predicted riser pressure corresponding to each step displacement and the safe pressure threshold, until the drilling fluid discharge reaches the target discharge rate, thus completing the automatic control of safe riser discharge of the drilling mud pump after connecting the standpipe; when the discharge rate is less than the target discharge rate... When the displacement reaches the preset displacement, the process enters the normal cycle mode and ends.

[0035] In this embodiment, after each riser operation, the measured riser pressure is recorded. The predicted riser pressure calculated by the prediction model By comparing the two, the algorithm is used to correct the parameters in the prediction model based on the difference between the two, so that the prediction model can more accurately reflect the actual working conditions, thereby improving the accuracy and reliability of subsequent displacement control.

[0036] This invention constructs an automatic control system for mud pump displacement, with real-time prediction of riser pressure and an adaptive pumping algorithm at its core. By embedding a transient model of multiphase flow in the wellbore into the control closed-loop system, the predicted riser pressure during drilling can be calculated in real time, and the pumping rate of the mud pump can be dynamically constrained based on the calculation results, achieving precise control of pressure during the displacement increase process.

[0037] Example 2: Based on Example 1, this embodiment of the invention provides an automatic control system for the safe lifting and discharge of drilling mud pumps after connection to a standpipe. This system can be used to implement the automatic control method for the safe lifting and discharge of drilling mud pumps after connection to a standpipe as described in the preceding embodiments. The system includes: The startup module is used to set the target displacement, initial displacement and safety pressure threshold. In response to the completion of drill pipe connection, the lift-displacement program is automatically started to inject drilling fluid to fill the drill string cavity with the initial displacement. The acquisition module is used to acquire riser pressure in real time and build a prediction model based on fluid mechanics and drilling engineering theory to calculate the predicted riser pressure corresponding to the next step displacement. The control module is used to compare the predicted riser pressure with the safe pressure threshold and control the riser and exhaust based on the comparison result. The execution module is used to repeatedly calculate the predicted riser pressure corresponding to each step displacement, and perform multiple rise control based on the comparison results of the predicted riser pressure corresponding to each step displacement and the safe pressure threshold, until the drilling fluid displacement reaches the target displacement, thus completing the automatic control of safe rise of the drilling mud pump after the stand is connected.

[0038] According to embodiments of the present invention, the present invention also provides an electronic device, a readable storage medium, and a computer program product.

[0039] In an exemplary embodiment, the electronic device includes: at least one processor; and a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to enable the at least one processor to perform the automatic control method for safe lifting and discharge of drilling mud pump after connection to the support column as described in Embodiment 1 above.

[0040] In an exemplary embodiment, the readable storage medium may be a non-transitory computer-readable storage medium storing computer instructions for causing the computer to execute the automatic control method for safe lifting and discharge of drilling mud pump after connection to the support column as described in Embodiment 1 above.

[0041] In an exemplary embodiment, the computer program product includes a computer program that, when executed by a processor, implements the automatic control method for safe lifting and discharge of drilling mud pump after connection to the support column as described in Embodiment 1 above.

[0042] The program code used to implement the methods of the present invention can be written in any combination of one or more programming languages. This program code can be provided to a processor or controller of a general-purpose computer, special-purpose computer, or other programmable data processing device, such that when executed by the processor or controller, the program code causes the functions / operations specified in the flowcharts and / or block diagrams to be implemented. The program code can be executed entirely on the machine, partially on the machine, as a standalone software package partially on the machine and partially on a remote machine, or entirely on a remote machine or server.

[0043] In the context of this invention, a machine-readable medium can be a tangible medium that may contain or store a program for use by or in conjunction with an instruction execution system, apparatus, or device. A machine-readable medium can be a machine-readable signal medium or a machine-readable storage medium. Machine-readable media can include, but are not limited to, electronic, magnetic, optical, electromagnetic, infrared, or semiconductor systems, apparatus, or devices, or any suitable combination of the foregoing. More specific examples of machine-readable storage media include electrical connections based on one or more wires, portable computer disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM or flash memory), optical fibers, portable compact disk read-only memory (CD-ROM), optical storage devices, magnetic storage devices, or any suitable combination of the foregoing.

[0044] To provide interaction with a user, the systems and techniques described herein can be implemented on a computer having: a display device for displaying information to the user (e.g., a CRT (cathode ray tube) or LCD (liquid crystal display) monitor); and a keyboard and pointing device (e.g., a mouse or trackball) through which the user provides input to the computer. Other types of devices can also be used to provide interaction with the user; for example, feedback provided to the user can be any form of sensory feedback (e.g., visual feedback, auditory feedback, or tactile feedback); and input from the user can be received in any form (including sound input, voice input, or tactile input).

[0045] The systems and technologies described herein can be implemented in computing systems that include backend components (e.g., as a data server), or computing systems that include middleware components (e.g., an application server), or computing systems that include frontend components (e.g., a user computer with a graphical user interface or web browser through which a user can interact with embodiments of the systems and technologies described herein), or any combination of such backend, middleware, or frontend components. The components of the system can be interconnected via digital data communication of any form or medium (e.g., a communication network). Examples of communication networks include local area networks (LANs), wide area networks (WANs), and the Internet.

[0046] Computer systems can include clients and servers. Clients and servers are generally located far apart and typically interact via communication networks. Client-server relationships are created by computer programs running on the respective computers and having a client-server relationship with each other. Servers can be cloud servers, servers in distributed systems, or servers incorporating blockchain technology.

[0047] Those skilled in the art will recognize that the embodiments described herein are intended to help the reader understand the principles of the invention, and should be understood that the scope of protection of the invention is not limited to such specific statements and embodiments. Those skilled in the art can make various other specific modifications and combinations based on the technical teachings disclosed in this invention without departing from the spirit of the invention, and these modifications and combinations are still within the scope of protection of this invention.

Claims

1. An automatic control method for the safe lifting and discharge of drilling mud pump after connection to a drilling column, characterized in that, Includes the following steps: Set the target displacement, initial displacement, and safety pressure threshold. In response to the completion of drill pipe connection, the lift-displacement program is automatically started, injecting drilling fluid at the initial displacement to fill the drill string cavity. Real-time acquisition of riser pressure, and construction of a prediction model based on fluid mechanics and drilling engineering theory to calculate the predicted riser pressure corresponding to the next step displacement; The predicted riser pressure is compared with the safe pressure threshold, and the riser discharge is controlled based on the comparison results. Repeatedly calculate the predicted riser pressure corresponding to each step displacement, and control the riser discharge based on the comparison results between the predicted riser pressure corresponding to each step displacement and the safe pressure threshold until the drilling fluid discharge reaches the target discharge, thus completing the automatic control of safe riser discharge of the drilling mud pump after the stand is connected.

2. The automatic control method for safe lifting and discharge of drilling mud pump after connection to the column as described in claim 1, characterized in that, The initial displacement is 10% of the target displacement.

3. The automatic control method for safe lifting and discharge of drilling mud pump after connection to the column as described in claim 1, characterized in that, The formula for calculating the predicted riser pressure is as follows: in, This indicates the predicted riser pressure. Indicates the internal and external wear of the drill pipe. This indicates the wear and tear inside and outside the drill collar. This indicates the pressure drop across the drill bit. This represents the change in flow velocity caused by a change in displacement. Indicates the nozzle flow coefficient. Indicates the density of the mud. Indicates the equivalent diameter of the nozzle. Indicates displacement per revolution. Indicates the length of the drill pipe. Indicates the inner diameter of the drill pipe. Indicates the outer diameter of the drill pipe. Indicates well diameter. Indicates viscosity. Indicates the length of the drill collar. Indicates the inner diameter of the drill collar. Indicates the outer diameter of the drill collar. This indicates the discharge rate inside the drill pipe. Indicates screw torque. This indicates the annular displacement.

4. The automatic control method for safe lifting and discharge of drilling mud pump after connection to the column as described in claim 1, characterized in that, The process of comparing the predicted riser pressure with a safe pressure threshold and controlling the riser flow based on the comparison result is as follows: If the predicted riser pressure is greater than or equal to the preset safe pressure threshold, an alarm will be triggered and the process will be terminated. If the predicted riser pressure is less than the preset safe pressure threshold, the riser pressure is classified into different levels and the displacement increase gradient is determined according to the ratio of the predicted riser pressure to the safe pressure threshold. If the predicted riser pressure is less than 0.6 times the preset safety pressure threshold, an alarm will be triggered and the process will be terminated to check for any abnormal operating conditions.

5. The automatic control method for safe lifting and discharge of drilling mud pump after connection to the column as described in claim 4, characterized in that, The classification based on the ratio of predicted riser pressure to the safe pressure threshold is as follows: If the predicted riser pressure is less than or equal to 0.7 times the safe pressure threshold and greater than 0.6 times the safe pressure threshold, then it is a safe zone. If the predicted riser pressure is less than or equal to 0.8 times the safe pressure threshold and greater than 0.7 times the safe pressure threshold, it is classified as pressure level one. If the predicted riser pressure is less than or equal to 0.9 times the safe pressure threshold and greater than 0.8 times the safe pressure threshold, it is classified as pressure level two. If the predicted riser pressure is less than 1 times the safe pressure threshold but greater than 0.9 times the safe pressure threshold, it is classified as pressure level three.

6. The automatic control method for safe lifting and discharge of drilling mud pump after connection to the column as described in claim 5, characterized in that, The determination of the displacement increase gradient specifically refers to: The safe zone allows for rapid evacuation, with an evacuation rate of 10% to 15%. The pressure level is maintained at a stable discharge rate, with a discharge rate of 5% to 10%. The pressure level is limited to two stages, with the discharge range being 1% to 5%. The pressure level three prohibits increasing the discharge rate; maintain the current discharge rate until the riser pressure stabilizes.

7. The automatic control method for safe lifting and discharge of drilling mud pump after connection to the column as described in claim 1, characterized in that, After each riser pumping operation, the error between the riser pressure and the predicted riser pressure is calculated, and the error value is used to correct the parameters of the prediction model based on fluid mechanics and drilling engineering theory.

8. An automatic control system for the safe lifting and discharge of drilling mud pump after connection to the drilling column, characterized in that, include: The startup module is used to set the target displacement, initial displacement and safety pressure threshold. In response to the completion of drill pipe connection, the lift-displacement program is automatically started to inject drilling fluid to fill the drill string cavity with the initial displacement. The acquisition module is used to acquire riser pressure in real time and build a prediction model based on fluid mechanics and drilling engineering theory to calculate the predicted riser pressure corresponding to the next step displacement. The control module is used to compare the predicted riser pressure with the safe pressure threshold and control the riser and exhaust based on the comparison result. The execution module is used to repeatedly calculate the predicted riser pressure corresponding to each step displacement, and perform multiple rise control based on the comparison results of the predicted riser pressure corresponding to each step displacement and the safe pressure threshold, until the drilling fluid displacement reaches the target displacement, thus completing the automatic control of safe rise of the drilling mud pump after the stand is connected.

9. An electronic device, characterized in that, include: At least one processor; And a memory communicatively connected to the at least one processor; wherein the memory stores instructions executable by the at least one processor, the instructions being executed by the at least one processor to cause the at least one processor to perform the method according to any one of claims 1-7.

10. A non-transitory computer-readable storage medium storing computer instructions, characterized in that, The computer instructions are used to cause the computer to perform the method according to any one of claims 1-7.

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