A method and device for controlling resumption of production on an unmanned offshore oil and gas production platform

Abstract

The present invention relates to the field of intelligent control of unmanned offshore platforms and discloses a method and device for controlling the resumption of production on an unmanned offshore oil and gas production platform. After the unmanned offshore oil and gas production platform is shut down, the present invention can assess resumption conditions within the platform based on resumption instructions sent by a remote control device, control related equipment and systems, and autonomously complete the restart and resumption of production on the platform without human intervention, thereby improving the operational efficiency and safety of the platform.

Description

Technical Field

[0001] The present invention relates to the field of intelligent control of unmanned offshore platforms, and in particular to a method and equipment for controlling resumption of production of unmanned offshore oil and gas production platforms. Background Art

[0002] An unmanned offshore oil and gas production platform is an offshore platform that can produce and manage oil and gas through remote control and automation technology. It does not require on-site operators and can be remotely controlled from a central station tens or even hundreds of kilometers away, realizing intelligent and unmanned offshore oil and gas production methods.

[0003] Offshore unmanned oil and gas production platforms enable offshore oil and gas production to be carried out in more complex and harsh marine environments, improving production efficiency and safety. They have broad application prospects and important economic value.

[0004] However, after the offshore unmanned oil and gas production platform was shut down, the relevant technology could not effectively resume production of the offshore unmanned oil and gas production platform. Summary of the Invention

[0005] The present invention provides a method and equipment for controlling resumption of production of an unmanned offshore oil and gas production platform, which can effectively realize the resumption of production of an unmanned offshore oil and gas production platform.

[0006] In a first aspect, the present invention provides a method for controlling resumption of production of an unmanned offshore oil and gas production platform, comprising:

[0007] In response to the resumption of production instruction sent by the remote control device, it is determined that each oil and gas well in the unmanned offshore oil and gas production platform meets the resumption of production conditions, and then a well opening operation is performed on each of the oil and gas wells;

[0008] When it is determined that the well opening operation corresponding to each of the oil and gas wells has been successfully completed, powering the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system, and monitoring the start-up progress of the auxiliary system;

[0009] When it is detected that the auxiliary system is successfully started, starting the chemical pump;

[0010] When it is determined that the chemical pump is successfully started, it is determined that the offshore unmanned oil and gas production platform has successfully resumed production.

[0011] Optionally, determining that each oil and gas well in the unmanned offshore oil and gas production platform meets the production resumption conditions includes:

[0012] Obtain the switch status and system pressure of the main valve, surface safety valve, and emergency shut-off valve in each of the oil and gas wells, and respectively test the operating performance of the field probe, process control system, fire and gas system, and emergency shut-off system;

[0013] After confirming that the main valve, surface safety valve, and emergency shut-off valve in each oil and gas well are in the closed state, the system pressure is within the normal range, and the operating performance of the field probe, the process control system, the fire and gas system, and the emergency shut-off system are normal, detecting the power supply status of the emergency busbar and the medium-pressure busbar;

[0014] When it is detected that the emergency busbar and the medium pressure busbar are powered on, the hydraulic oil pressure and the hydraulic oil level of the well control panel are detected;

[0015] When it is determined that the hydraulic oil pressure and the hydraulic oil level of the well control panel are within a normal range, it is determined that each of the oil and gas wells meets the production resumption conditions.

[0016] Optionally, performing the well opening operation on each of the oil and gas wells separately includes:

[0017] Opening the emergency shut-off valve and monitoring the opening result of the emergency shut-off valve;

[0018] If it is detected that the emergency shut-off valve is opened successfully, the hydraulic oil pressure and the hydraulic oil level of the well control panel are detected;

[0019] When it is determined that the hydraulic oil pressure and the hydraulic oil level of the well control panel are within the normal range, the opening of the electric oil nozzle is adjusted from 0 to a first set opening, and the operating parameters of the electric oil nozzle are detected;

[0020] After determining that the operating parameters of the electric oil nozzle are within the normal range, the common module pressure is within the normal range, the well control panel hydraulic oil pressure and the well control panel hydraulic oil level are within the normal range, the high and low pressure switches are in normal status, and the hydraulic oil pressure pump is energized, open the main valve and the ground safety valve in each of the oil and gas wells, and adjust the opening of the electric oil nozzle from the first set opening to the second set opening.

[0021] Optionally, when it is determined that the well opening operation corresponding to each of the oil and gas wells has been successfully completed, supplying power to the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system includes:

[0022] Detecting the pressure before the oil nozzle and the temperature after the oil nozzle of the electric oil nozzle;

[0023] When it is determined that the pressure before the nozzle and the temperature after the nozzle of the electric nozzle are within the normal range, determining that the well opening operation corresponding to each oil and gas well has been successfully completed, and detecting the power supply status of the submarine cable box and the medium-voltage busbar;

[0024] When it is determined that the power-on status of the submarine cable box and the medium-voltage busbar is energized, power is supplied to the auxiliary system through the submarine cable box and the medium-voltage busbar.

[0025] Optionally, starting the chemical pump includes:

[0026] detecting the power-on status, outlet pressure, and liquid level of the chemical tank of the chemical pump;

[0027] When it is determined that the power-on state of the chemical pump is energized, and the outlet pressure and the liquid level of the chemical tank are within a normal range, the chemical pump is started.

[0028] Optionally, when determining that the chemical pump is successfully started, determining that the offshore unmanned oil and gas production platform has successfully resumed production includes:

[0029] detecting the outlet pressure of the chemical pump;

[0030] When it is determined that the outlet pressure of the chemical pump is maintained within a normal range, it is determined that the chemical pump is successfully started, and it is determined that the offshore unmanned oil and gas production platform has successfully resumed production.

[0031] Optionally, the method further includes:

[0032] When it is determined that the oil and gas well does not meet the resumption conditions, the well opening operation fails, the submarine cable box is not powered, the medium-voltage busbar is not powered, the auxiliary system fails to start, or the chemical pump fails to start, it is determined that the offshore unmanned oil and gas production platform has failed to resume production, and a corresponding alarm is output.

[0033] In a second aspect, the present invention provides a production resumption control device for an unmanned offshore oil and gas production platform, comprising:

[0034] a first determining unit, configured to determine, in response to a resumption instruction sent by a remote control device, whether each oil and gas well in the unmanned offshore oil and gas production platform meets a resumption condition;

[0035] a well opening unit, configured to perform well opening operations on each of the oil and gas wells;

[0036] a first starting unit, configured to supply power to the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system when determining that the well opening operation corresponding to each of the oil and gas wells has been successfully completed;

[0037] a monitoring unit, configured to monitor the startup progress of the auxiliary system;

[0038] a second starting unit, configured to start the chemical pump when detecting that the auxiliary system has been successfully started;

[0039] The second determining unit is configured to determine that the offshore unmanned oil and gas production platform has successfully resumed production if it is determined that the chemical pump has been successfully started.

[0040] In a third aspect, the present invention provides a computer device comprising: a memory and a processor, the memory and the processor being communicatively connected to each other, the memory storing computer instructions, and the processor executing the computer instructions to execute the offshore unmanned oil and gas production platform resumption control method of the above-mentioned first aspect or any corresponding embodiment thereof.

[0041] In a fourth aspect, the present invention provides a computer-readable storage medium having computer instructions stored thereon, the computer instructions being used to enable a computer to execute the offshore unmanned oil and gas production platform resumption control method of the above-mentioned first aspect or any corresponding embodiment thereof.

[0042] The method and device for controlling resumption of production of an unmanned offshore oil and gas production platform provided by the present invention can respond to the resumption instruction sent by the remote control device, determine that each oil and gas well in the unmanned offshore oil and gas production platform meets the resumption conditions, and then perform the well opening operation on each oil and gas well respectively. When it is determined that the well opening operation corresponding to each oil and gas well has been successfully completed, power is supplied to the auxiliary system through the submarine cable box and the medium-pressure busbar to start the auxiliary system, and the startup progress of the auxiliary system is monitored. When it is monitored that the auxiliary system has been successfully started, the chemical pump is started. When it is determined that the chemical pump has been successfully started, it is determined that the unmanned offshore oil and gas production platform has successfully resumed production. After the unmanned offshore oil and gas production platform is shut down, the present invention can, based on the resumption instruction sent by the remote control device, conduct research and judgment on the resumption conditions in the unmanned offshore oil and gas production platform, and control the relevant equipment and systems, and autonomously complete the restart and resumption of production of the unmanned offshore oil and gas production platform without human participation throughout the process, thereby improving the operating efficiency and safety of the unmanned offshore oil and gas production platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction is given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0044] Figure 1 A flowchart of a method for controlling resumption of production on an unmanned offshore oil and gas production platform provided by an embodiment of the present invention;

[0045] Figure 2 A flowchart of another method for controlling resumption of production on an unmanned offshore oil and gas production platform provided by an embodiment of the present invention;

[0046] Figure 3 A schematic structural diagram of a production resumption control device for an unmanned offshore oil and gas production platform provided by an embodiment of the present invention;

[0047] Figure 4 A schematic structural diagram of a computer device provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0048] To make the objectives, technical solutions, and advantages of the present invention more clear, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0049] The following combination Figures 1-4 The present invention describes the production resumption control method of an unmanned offshore oil and gas production platform.

[0050] In the related art, since there is no one on duty at the offshore unmanned oil and gas production platform, there is no on-site operator participation in the remote resumption process, so higher requirements are placed on the safety, reliability, automation and intelligence level of the remote resumption operation. The restart of the unmanned oil and gas production platform after shutdown requires the formulation of different operating process flows according to different unmanned platform equipment configurations and corresponding production processes, and the adjustment of the operating strategy according to the feedback information of the equipment during the resumption operation to ensure the safe resumption of the offshore unmanned oil and gas production platform. At the same time, due to the large number of operating steps and operating objects involved in the resumption operation, it brings certain difficulties to the operation process of the remote control operator. The offshore unmanned oil and gas production platform resumption control method proposed in this embodiment can efficiently and safely complete the one-click resumption of the unmanned oil and gas platform without human participation throughout the process, thereby improving the efficiency and safety of offshore oil and gas production operations.

[0051] like Figure 1 As shown, this embodiment proposes a first method for controlling resumption of production on an unmanned offshore oil and gas production platform, which may include the following steps:

[0052] S101. In response to a resumption instruction sent by a remote control device, it is determined that each oil and gas well in the unmanned offshore oil and gas production platform meets the resumption conditions, and then step S102 is executed.

[0053] It should be noted that this embodiment can be applied to a control unit in an unmanned offshore oil and gas production platform.

[0054] The remote control device may be a control device in a central station several kilometers or even hundreds of kilometers away from the offshore unmanned oil and gas production platform.

[0055] Specifically, when receiving a resumption instruction, this embodiment can determine whether each oil and gas well on the offshore unmanned oil and gas production platform meets the resumption conditions. If so, subsequent well opening operations can be performed. If not, a corresponding alarm can be issued and a resumption failure can be displayed.

[0056] Optionally, step S101 may include:

[0057] Obtain the switch status and system pressure of the main valve, surface safety valve, and emergency shut-off valve in each oil and gas well, and test the operating performance of the field probe, process control system, fire and gas system, and emergency shut-off system respectively;

[0058] After confirming that the main valve, surface safety valve, and emergency shut-off valve in each oil and gas well are in the closed state, the system pressure is within the normal range, and the operating performance of the field probe, process control system, fire and gas system, and emergency shut-off system is normal, check the power supply status of the emergency busbar and medium-pressure busbar;

[0059] When it is detected that the power supply status of the emergency busbar and the medium pressure busbar is energized, the hydraulic oil pressure and the hydraulic oil level of the well control panel are detected;

[0060] After confirming that the hydraulic oil pressure and liquid level of the well control panel are within the normal range, it is determined that each oil and gas well meets the conditions for resumption of production.

[0061] Specifically, this embodiment can determine whether the main valve and ground safety valve in each oil and gas well are closed normally, whether the emergency shut-off valve is closed normally, whether the system pressure is normal, whether the field probe is normal, whether the process control system, fire and gas system and emergency shutdown system are normal. If it is determined that any of the devices or systems are abnormal, the relevant alarm program can be activated.

[0062] This embodiment then determines whether the emergency busbar is powered. If not, it then determines whether the cooling water level meets the required level, the battery voltage is normal, and the diesel level meets the required level. If any of these conditions are not met, an alarm is triggered, indicating that the resumption of production has failed. If the conditions are met, the emergency generator set is started.

[0063] This embodiment then determines whether the medium-pressure busbar is receiving power and whether the hydraulic oil pressure and level on the well control panel are normal. If the medium-pressure busbar is not receiving power or the pressure and level are abnormal, an alarm is triggered and a message indicating that the resumption of production has failed is displayed. If all conditions are met, the well start-up process begins.

[0064] S102: Perform well opening operation on each oil and gas well.

[0065] Optionally, step S102 may include:

[0066] Open the emergency shut-off valve and monitor the opening result of the emergency shut-off valve;

[0067] If the emergency shut-off valve is detected to be opened successfully, the hydraulic oil pressure and liquid level of the well control panel hydraulic oil are detected;

[0068] When it is determined that the hydraulic oil pressure and the hydraulic oil level of the well control panel are within the normal range, the opening of the electric oil nozzle is adjusted from 0 to a first set opening, and the operating parameters of the electric oil nozzle are detected;

[0069] After confirming that the operating parameters of the electric oil nozzle are within the normal range, the common module pressure is within the normal range, the well control panel hydraulic oil pressure and the well control panel hydraulic oil level are within the normal range, the high and low pressure switches are in normal status, and the hydraulic oil pressure pump is energized, open the main valve and ground safety valve in each oil and gas well, and adjust the opening of the electric oil nozzle from the first set opening to the second set opening.

[0070] S103: When it is determined that the opening operation of each oil and gas well has been successfully completed, power is supplied to the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system.

[0071] Among them, auxiliary systems may include air conditioning, fire and gas and other auxiliary systems.

[0072] Optionally, step S103 may include:

[0073] Detect the pressure before the electric oil nozzle and the temperature after the oil nozzle;

[0074] After confirming that the pressure before the electric nozzle and the temperature after the nozzle are within the normal range, confirm that the opening operation of each oil and gas well has been successfully completed, and check the power status of the submarine cable box and the medium-voltage busbar;

[0075] When it is determined that the power-on status of the submarine cable box and the medium-voltage busbar is energized, power is supplied to the auxiliary system through the submarine cable box and the medium-voltage busbar.

[0076] Specifically, this embodiment can determine that the opening operation of each oil and gas well has been completed, and then control the submarine cable box and the medium-voltage busbar to supply power to the auxiliary system to start the auxiliary system.

[0077] S104: Monitor the startup progress of the auxiliary system.

[0078] Specifically, this embodiment can monitor the startup progress of the auxiliary system after power is supplied to the auxiliary system through the submarine cable box and the medium voltage busbar.

[0079] S105: When it is detected that the auxiliary system is started successfully, the chemical pump is started.

[0080] Specifically, in this embodiment, the chemical pump may be started after determining that the auxiliary system has been successfully started.

[0081] Optionally, step S105 may include:

[0082] When the auxiliary system is detected to be successfully started, the power supply status, outlet pressure and liquid level of the chemical pump are detected;

[0083] After confirming that the chemical pump is powered on and the outlet pressure and the liquid level in the chemical tank are within normal ranges, start the chemical pump.

[0084] S106. After confirming that the chemical pump has been successfully started, confirm that the offshore unmanned oil and gas production platform has successfully resumed production.

[0085] Specifically, this embodiment can monitor the startup progress of the chemical pump, and when it is determined that the chemical pump is successfully started, it is determined that the resumption of production control of the unmanned offshore oil and gas production platform is successfully completed.

[0086] It should be noted that starting the chemical pump is one of the working conditions during the resumption of production of the unmanned offshore oil and gas production platform. This embodiment tests and confirms all working conditions during the resumption of production of the unmanned offshore oil and gas production platform.

[0087] Optionally, step S106 may include:

[0088] Detect the outlet pressure of the chemical pump;

[0089] After confirming that the outlet pressure of the chemical pump remains within the normal range, it is determined that the chemical pump is successfully started and that the offshore unmanned oil and gas production platform has successfully resumed production.

[0090] Optionally, in other offshore unmanned oil and gas production platform resumption control methods proposed in this embodiment, the following steps may also be included:

[0091] If it is determined that the oil and gas wells do not meet the conditions for resuming production, the well opening operation fails, the submarine cable box is not powered, the medium-voltage busbar is not powered, the auxiliary system fails to start, or the chemical pump fails to start, the unmanned offshore oil and gas production platform is determined to have failed to resume production and a corresponding alarm is output.

[0092] It can be understood that this embodiment can judge whether each oil and gas well in the offshore unmanned oil and gas production platform meets the resumption of production start-up conditions based on the resumption of production instructions and preconditions, and formulate a resumption of production operation process based on the offshore unmanned oil and gas production platform, and then use the formulated resumption of production operation process to obtain the response information of related equipment and execution devices, judge whether the sequential execution conditions are met, and autonomously complete the resumption of production of the offshore unmanned oil and gas production platform without any human participation throughout the process, and can automatically handle special situations that arise during the resumption of production.

[0093] It should be noted that this embodiment can formulate corresponding offshore unmanned oil and gas production platform resumption processes and operating procedures based on the production process and equipment configuration of a specific offshore unmanned oil and gas production platform. By integrating with the monitoring system, it obtains the status response information of relevant equipment and actuators, determines whether the preconditions of each execution step are met, and then sequentially executes the resumption operation steps to complete the unmanned autonomous startup of the offshore unmanned oil and gas production platform. During the entire resumption and startup process, the response and disposal measures taken are autonomously determined based on the current operation steps and the real-time status information fed back by the equipment.

[0094] It should also be noted that this embodiment can formulate a safe operating process flow for the restart operation of an unmanned offshore oil and gas production platform after shutdown, integrate with the production monitoring system of the unmanned offshore oil and gas production platform, obtain the feedback status information of each device and actuator during the resumption of production and restart, and sequentially realize the resumption of production of the unmanned platform. It can also make independent decisions based on the operating process and the feedback information of the monitored equipment and actuators, and alarm or handle situations that arise during the one-click resumption of production, thereby solving the problem of cumbersome and complicated operations of remote resumption personnel on the unmanned offshore oil and gas production platform, and at the same time improving the safety and efficiency of the resumption of production operation.

[0095] The offshore unmanned oil and gas production platform resumption control method proposed in this embodiment can respond to the resumption instruction sent by the remote control device, determine that each oil and gas well in the offshore unmanned oil and gas production platform meets the resumption conditions, and then perform the well opening operation on each oil and gas well respectively. When it is determined that the well opening operation corresponding to each oil and gas well has been successfully completed, power is supplied to the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system, and the startup progress of the auxiliary system is monitored. When it is monitored that the auxiliary system has been successfully started, the chemical pump is started. When it is determined that the chemical pump has been successfully started, it is determined that the offshore unmanned oil and gas production platform has resumed production successfully. This embodiment can, after the offshore unmanned oil and gas production platform is shut down, conduct a judgment on the resumption conditions in the offshore unmanned oil and gas production platform based on the resumption instruction sent by the remote control device, and control the relevant equipment and systems, and autonomously complete the restart and resumption of production of the offshore unmanned oil and gas production platform without human participation throughout the process, thereby improving the operating efficiency and safety of the offshore unmanned oil and gas production platform.

[0096] like Figure 2 As shown, this embodiment proposes a second method for controlling resumption of production of an unmanned offshore oil and gas production platform, which may include steps S1, S2, S3, S4, and S5:

[0097] S1. Based on the monitoring information, determine whether the preconditions such as the main valve, ground safety valve, process control system, fire and gas system, emergency shutdown system and power supply unit status of each oil and gas well in the offshore unmanned oil and gas production platform meet the conditions for resumption of production, and alarm or deal with any existing problems.

[0098] First, this embodiment can determine whether the main valves and ground safety valves of each oil and gas well are closed normally, whether the SDV is closed, whether the system pressure is normal, whether the field probe is normal, and whether the process control system, fire and gas system, and emergency shutdown system are normal. If there is a problem, the relevant alarm program will be activated.

[0099] Next, the system checks whether the emergency busbar is powered. If not, it checks whether the cooling water level meets the required level, the battery voltage is normal, and the diesel level meets the required level. If any of these conditions are not met, an alarm is triggered, indicating that the resumption of production has failed. If the conditions are met, the emergency generator set is started.

[0100] Finally, the system checks whether the medium-pressure busbar is receiving power and whether the hydraulic oil pressure and level on the well control panel are normal. If the medium-pressure busbar is not receiving power or the pressure and level are abnormal, an alarm will be triggered and the resumption of production failure will be displayed. If all conditions are met, the well start-up process will begin.

[0101] S2. Open the emergency shut-off valve and determine the execution status of the emergency shut-off valve, the pressure and liquid level information of the hydraulic system, and whether the electric nozzle is energized. Open the electric nozzle to a specific value, then sequentially open the main valve and ground safety valve of each oil and gas well and determine whether the feedback information is correct until it is displayed that the well opening operation is completed.

[0102] First, this embodiment can determine whether the emergency shutoff valve is opening normally, whether the hydraulic oil pressure on the well control panel is normal, and whether the hydraulic oil level on the well control panel is normal 30 seconds after the emergency shutoff valve is opened. If abnormal, the one-button recovery fails and an alarm is issued. If normal, the electric oil nozzle is activated to a specific value after it is determined to be energized.

[0103] This embodiment then uses the monitoring system to determine whether the operating current and temperature of the nozzles are normal, as well as the nozzle opening feedback value. If not, the one-touch restart fails and an alarm is issued. If all is normal, the system then determines whether the hydraulic oil pressure and level on the well control panel are normal, whether the common module pressure is normal, whether the high and low pressure switches are normal, and whether the hydraulic pump is powered. If any of these conditions are not met, the restart fails. If all is normal, the main valves and surface safety valves of each oil and gas well are opened.

[0104] Next, the system checks whether the valve position feedback of each well's main valve and surface safety valve is normal, whether the hydraulic oil pressure and level on the well control panel are normal, and whether the video surveillance system is monitoring the normal operation of each well's main valve. If these conditions are abnormal, the one-button restart will fail. If they are normal, the surface safety valves of each well will be opened.

[0105] Finally, open the nozzle to the specified opening, and judge whether the well opening operation is normal by the pressure before the nozzle and the temperature after the nozzle.

[0106] S3. Determine the power supply status of the submarine cable box and the medium-voltage busbar. If the submarine cable box and the medium-voltage busbar are powered, start the air conditioning, fire and gas and other auxiliary systems.

[0107] First, this embodiment can determine whether there is power to the submarine cable box. If there is no power, it will prompt that the resumption of production has failed and an alarm will be issued; if there is power, it will determine whether there is power to the medium-voltage busbar. If there is no power, it will prompt that the resumption of production has failed and an alarm will be issued; if there is power, the auxiliary system will be started; if the auxiliary system cannot be started, it will determine whether the air conditioner and fan damper are powered, whether the indoor probe status is normal, and whether the video surveillance system monitors the indoor environment normally; if the above conditions are not met, an alarm will be issued.

[0108] S4. Obtain the power supply status of the chemical pump, the outlet pressure, and the liquid level information of the chemical tank, and determine whether the start-up conditions of the chemical pump are met based on the status information. If the conditions are met, start the chemical pump.

[0109] First, this embodiment can determine whether the chemical pump has power, whether the chemical pump outlet pressure is normal, and whether the chemical tank liquid level is normal. If the above conditions are not met, it will prompt that the resumption of production has failed and an alarm will be issued. If the conditions are met, the chemical pump will be started.

[0110] S5. If the chemical pump startup test is successful, the autonomous resumption of production operation is completed.

[0111] Specifically, this embodiment can determine whether the outlet pressure of the chemical pump has changed and whether the pressure exceeds the standard. If the pressure changes and the pressure does not exceed the standard, it indicates that the resumption of production is successful. If the pressure does not change or exceeds the standard, it indicates that the resumption of production has failed and an alarm is issued.

[0112] The offshore unmanned oil and gas production platform resumption control method proposed in this embodiment can, after the offshore unmanned oil and gas production platform is shut down, conduct analysis and judgment of resumption conditions in the offshore unmanned oil and gas production platform based on the resumption instructions sent by the remote control device, and control related equipment and systems. It can independently complete the restart and resumption of production of the offshore unmanned oil and gas production platform without human participation throughout the process, thereby improving the operating efficiency and safety of the offshore unmanned oil and gas production platform.

[0113] and Figure 1 The method shown corresponds to Figure 3 As shown, this embodiment provides a production resumption control device for an unmanned offshore oil and gas production platform, comprising:

[0114] The first determining unit 101 is configured to determine whether each oil and gas well in the unmanned offshore oil and gas production platform meets the production resumption condition in response to the production resumption instruction sent by the remote control device;

[0115] A well opening unit 102 is used to perform well opening operations on each oil and gas well;

[0116] The first starting unit 103 is used to supply power to the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system when it is determined that the opening operation corresponding to each oil and gas well has been successfully completed;

[0117] A monitoring unit 104 is used to monitor the startup progress of the auxiliary system;

[0118] The second starting unit 105 is used to start the chemical pump when monitoring that the auxiliary system is successfully started;

[0119] The second determining unit 106 is configured to determine that the offshore unmanned oil and gas production platform has successfully resumed production if it is determined that the chemical pump has been successfully started.

[0120] It should be noted that the processing of the first determination unit 101, the well opening unit 102, the first start unit 103, the monitoring unit 104, the second start unit 105 and the second determination unit 106 and the beneficial effects thereof can be referred to in detail. Figure 1 Steps S101 to S106 in the above are not described in detail.

[0121] Optionally, the first determining unit 101 is further configured to:

[0122] Obtain the switch status and system pressure of the main valve, surface safety valve, and emergency shut-off valve in each oil and gas well, and test the operating performance of the field probe, process control system, fire and gas system, and emergency shut-off system respectively;

[0123] After confirming that the main valve, surface safety valve, and emergency shut-off valve in each oil and gas well are in the closed state, the system pressure is within the normal range, and the operating performance of the field probe, process control system, fire and gas system, and emergency shut-off system is normal, check the power supply status of the emergency busbar and medium-pressure busbar;

[0124] When it is detected that the power supply status of the emergency busbar and the medium pressure busbar is energized, the hydraulic oil pressure and the hydraulic oil level of the well control panel are detected;

[0125] After confirming that the hydraulic oil pressure and liquid level of the well control panel are within the normal range, it is determined that each oil and gas well meets the conditions for resumption of production.

[0126] Optionally, the well drilling unit 102 is further configured to:

[0127] Open the emergency shut-off valve and monitor the opening result of the emergency shut-off valve;

[0128] If the emergency shut-off valve is detected to be opened successfully, the hydraulic oil pressure and liquid level of the well control panel hydraulic oil are detected;

[0129] When it is determined that the hydraulic oil pressure and the hydraulic oil level of the well control panel are within the normal range, the opening of the electric oil nozzle is adjusted from 0 to a first set opening, and the operating parameters of the electric oil nozzle are detected;

[0130] After confirming that the operating parameters of the electric oil nozzle are within the normal range, the common module pressure is within the normal range, the well control panel hydraulic oil pressure and the well control panel hydraulic oil level are within the normal range, the high and low pressure switches are in normal status, and the hydraulic oil pressure pump is energized, open the main valve and ground safety valve in each oil and gas well, and adjust the opening of the electric oil nozzle from the first set opening to the second set opening.

[0131] Optionally, the first starting unit 103 is further configured to:

[0132] Detect the pressure before the electric oil nozzle and the temperature after the oil nozzle;

[0133] After confirming that the pressure before the electric nozzle and the temperature after the nozzle are within the normal range, confirm that the opening operation of each oil and gas well has been successfully completed, and check the power status of the submarine cable box and the medium-voltage busbar;

[0134] When it is determined that the power-on status of the submarine cable box and the medium-voltage busbar is energized, power is supplied to the auxiliary system through the submarine cable box and the medium-voltage busbar.

[0135] Optionally, the second starting unit 105 is further configured to:

[0136] Detect the power status, outlet pressure and liquid level of chemical pumps;

[0137] After confirming that the chemical pump is powered on and the outlet pressure and the liquid level in the chemical tank are within normal ranges, start the chemical pump.

[0138] Optionally, the second determining unit 106 is further configured to:

[0139] Detect the outlet pressure of the chemical pump;

[0140] After confirming that the outlet pressure of the chemical pump remains within the normal range, it is determined that the chemical pump is successfully started and that the offshore unmanned oil and gas production platform has successfully resumed production.

[0141] Optionally, the device further comprises:

[0142] The alarm unit is used to determine that the offshore unmanned oil and gas production platform has failed to resume production and output a corresponding alarm when it is determined that the oil and gas well does not meet the conditions for resuming production, the well opening operation has failed, the submarine cable box is not powered, the medium-voltage busbar is not powered, the auxiliary system fails to start, or the chemical pump fails to start.

[0143] The offshore unmanned oil and gas production platform resumption control device proposed in this embodiment can respond to the resumption instruction sent by the remote control device, determine that each oil and gas well in the offshore unmanned oil and gas production platform meets the resumption conditions, and then perform the well opening operation on each oil and gas well respectively. When it is determined that the well opening operation corresponding to each oil and gas well has been successfully completed, power is supplied to the auxiliary system through the submarine cable box and the medium-pressure busbar to start the auxiliary system, and the startup progress of the auxiliary system is monitored. When it is monitored that the auxiliary system has been successfully started, the chemical pump is started. When it is determined that the chemical pump has been successfully started, it is determined that the offshore unmanned oil and gas production platform has resumed production successfully. This embodiment can, after the offshore unmanned oil and gas production platform is shut down, conduct a judgment on the resumption conditions in the offshore unmanned oil and gas production platform based on the resumption instruction sent by the remote control device, and control the relevant equipment and systems, and autonomously complete the restart and resumption of production of the offshore unmanned oil and gas production platform without human participation throughout the process, thereby improving the operating efficiency and safety of the offshore unmanned oil and gas production platform.

[0144] The offshore unmanned oil and gas production platform resumption control device in this embodiment is presented in the form of a functional unit, where the unit refers to an ASIC (Application Specific Integrated Circuit) circuit, a processor and memory that executes one or more software or fixed programs, and / or other devices that can provide the above functions.

[0145] The embodiment of the present invention also provides a computer device having the above Figure 3 The figure shows the resumption of production control of an unmanned offshore oil and gas production platform.

[0146] See also Figure 4, a structural diagram of a computer device provided by an optional embodiment of the present invention, the computer device includes: one or more processors 10, a memory 20, and interfaces for connecting various components, including high-speed interfaces and low-speed interfaces. The various components are connected to each other using different buses for communication, and can be installed on a common motherboard or installed in other ways as needed. The processor can process instructions executed in the computer device, including instructions stored in or on the memory to display graphical information of the GUI on an external input / output device (such as a display device coupled to the interface). In some optional embodiments, if necessary, multiple processors and / or multiple buses can be used together with multiple memories and multiple memories. Similarly, multiple computer devices can be connected, and each device provides part of the necessary operations (for example, as a server array, a group of blade servers, or a multi-processor system). Figure 4 A processor 10 is taken as an example.

[0147] The processor 10 may be a central processing unit, a network processor, or a combination thereof. The processor 10 may further include a hardware chip. The hardware chip may be an application-specific integrated circuit, a programmable logic device, or a combination thereof. The programmable logic device may be a complex programmable logic device, a field programmable gate array, a general purpose array logic, or any combination thereof.

[0148] The memory 20 stores instructions that can be executed by at least one processor 10, so as to enable at least one processor 10 to execute the method shown in the above embodiment.

[0149] The memory 20 may include a program storage area and a data storage area, wherein the program storage area may store an operating system and application programs required for at least one function. The data storage area may store data created according to the use of the computer device, etc. In addition, the memory 20 may include a high-speed random access memory and may also include a non-transient memory, such as at least one disk storage device, a flash memory device, or other non-transient solid-state storage device. In some optional embodiments, the memory 20 may optionally include a memory remotely arranged relative to the processor 10, and these remote memories may be connected to the computer device via a network. Examples of the above-mentioned network include, but are not limited to, the Internet, an intranet, a local area network, a mobile communication network, and combinations thereof.

[0150] The memory 20 may include volatile memory, such as random access memory. The memory may also include non-volatile memory, such as flash memory, a hard disk, or a solid-state drive. The memory 20 may also include a combination of the above types of memory.

[0151] The computer device further includes a communication interface 30 for the computer device to communicate with other devices or a communication network.

[0152] The embodiment of the present invention also provides a computer-readable storage medium. The above-mentioned method according to the embodiment of the present invention can be implemented in hardware, firmware, or implemented as a computer code that can be recorded in a storage medium, or implemented as a computer code that is originally stored in a remote storage medium or a non-temporary machine-readable storage medium and downloaded through a network and will be stored in a local storage medium, so that the method described herein can be stored in such software processing on a storage medium using a general-purpose computer, a dedicated processor, or programmable or dedicated hardware. Among them, the storage medium can be a magnetic disk, an optical disk, a read-only storage memory, a random access memory, a flash memory, a hard disk or a solid-state drive, etc.; further, the storage medium can also include a combination of the above-mentioned types of memory. It can be understood that a computer, a processor, a microprocessor controller or programmable hardware includes a storage component that can store or receive software or computer code. When the software or computer code is accessed and executed by a computer, a processor or hardware, the method shown in the above embodiment is implemented.

[0153] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A method for controlling resumption of production of an unmanned offshore oil and gas production platform, characterized in that: include: In response to the resumption of production instruction sent by the remote control device, it is determined that each oil and gas well in the unmanned offshore oil and gas production platform meets the resumption of production conditions, and then a well opening operation is performed on each of the oil and gas wells; When it is determined that the well opening operation corresponding to each of the oil and gas wells has been successfully completed, powering the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system, and monitoring the start-up progress of the auxiliary system; When it is detected that the auxiliary system is successfully started, the chemical pump is started; When it is determined that the chemical pump is successfully started, it is determined that the offshore unmanned oil and gas production platform has successfully resumed production; The determination that each oil and gas well on the unmanned offshore oil and gas production platform meets the conditions for resuming production includes: Obtain the switch status and system pressure of the main valve, surface safety valve, and emergency shut-off valve in each of the oil and gas wells, and respectively test the operating performance of the field probe, process control system, fire and gas system, and emergency shut-off system; After confirming that the main valve, surface safety valve, and emergency shut-off valve in each oil and gas well are in the closed state, the system pressure is within the normal range, and the operating performance of the field probe, the process control system, the fire and gas system, and the emergency shut-off system are normal, detecting the power supply status of the emergency busbar and the medium-pressure busbar; When it is detected that the emergency busbar and the medium pressure busbar are powered on, the hydraulic oil pressure and the hydraulic oil level of the well control panel are detected; When it is determined that the hydraulic oil pressure and the hydraulic oil level of the well control panel are within a normal range, determining that each of the oil and gas wells meets the conditions for resuming production; The step of performing the well opening operation on each of the oil and gas wells includes: Opening the emergency shut-off valve and monitoring the opening result of the emergency shut-off valve; If it is detected that the emergency shut-off valve is opened successfully, the hydraulic oil pressure and the hydraulic oil level of the well control panel are detected; When it is determined that the hydraulic oil pressure and the hydraulic oil level of the well control panel are within the normal range, the opening of the electric oil nozzle is adjusted from 0 to a first set opening, and the operating parameters of the electric oil nozzle are detected; After determining that the operating parameters of the electric oil nozzle are within the normal range, the common module pressure is within the normal range, the well control panel hydraulic oil pressure and the well control panel hydraulic oil level are within the normal range, the high and low pressure switches are in normal status, and the hydraulic oil pressure pump is energized, open the main valve and the ground safety valve in each of the oil and gas wells, and adjust the opening of the electric oil nozzle from the first set opening to the second set opening.

2. The method according to claim 1, characterized in that When it is determined that the well opening operation corresponding to each of the oil and gas wells has been successfully completed, powering the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system includes: Detecting the pressure before the oil nozzle and the temperature after the oil nozzle of the electric oil nozzle; When it is determined that the pressure before the nozzle and the temperature after the nozzle of the electric nozzle are within the normal range, determining that the well opening operation corresponding to each oil and gas well has been successfully completed, and detecting the power supply status of the submarine cable box and the medium-voltage busbar; When it is determined that the power-on status of the submarine cable box and the medium-voltage busbar is energized, power is supplied to the auxiliary system through the submarine cable box and the medium-voltage busbar.

3. The method according to claim 1, characterized in that The starting of the chemical pump comprises: detecting the power-on status, outlet pressure, and liquid level of the chemical tank of the chemical pump; When it is determined that the power-on state of the chemical pump is energized, and the outlet pressure and the liquid level of the chemical tank are within a normal range, the chemical pump is started.

4. The method according to claim 1, wherein In the case where it is determined that the chemical pump is successfully started, determining that the offshore unmanned oil and gas production platform has successfully resumed production includes: detecting the outlet pressure of the chemical pump; When it is determined that the outlet pressure of the chemical pump is maintained within a normal range, it is determined that the chemical pump is successfully started, and it is determined that the offshore unmanned oil and gas production platform has successfully resumed production.

5. The method according to claim 1, wherein The method further comprises: When it is determined that the oil and gas well does not meet the resumption conditions, the well opening operation fails, the submarine cable box is not powered, the medium-voltage busbar is not powered, the auxiliary system fails to start, or the chemical pump fails to start, it is determined that the offshore unmanned oil and gas production platform has failed to resume production, and a corresponding alarm is output.

6. A production resumption control device for an unmanned offshore oil and gas production platform, characterized in that: The method for controlling resumption of production of an unmanned offshore oil and gas production platform according to any one of claims 1 to 5, wherein the device comprises: a first determining unit, configured to determine, in response to a resumption instruction sent by a remote control device, whether each oil and gas well in the unmanned offshore oil and gas production platform meets a resumption condition; a well opening unit, configured to perform well opening operations on each of the oil and gas wells; a first starting unit, configured to supply power to the auxiliary system through the submarine cable box and the medium-voltage busbar to start the auxiliary system when determining that the well opening operation corresponding to each of the oil and gas wells has been successfully completed; a monitoring unit, configured to monitor the startup progress of the auxiliary system; a second starting unit, configured to start a chemical agent pump when detecting that the auxiliary system has been successfully started; The second determining unit is configured to determine that the offshore unmanned oil and gas production platform has successfully resumed production if it is determined that the chemical pump has been successfully started.

7. A computer device, characterized in that: include: A memory and a processor, wherein the memory and the processor are communicatively connected to each other, computer instructions are stored in the memory, and the processor executes the offshore unmanned oil and gas production platform resumption control method according to any one of claims 1 to 5 by executing the computer instructions.

8. A computer-readable storage medium, characterized in that The computer-readable storage medium stores computer instructions, and the computer instructions are used to enable a computer to execute the offshore unmanned oil and gas production platform resumption control method according to any one of claims 1 to 5.

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