Offshore oil and gas field platform power grid load priority evaluation method and system, processing equipment and storage medium

Abstract

The invention relates to an offshore oil and gas field platform power grid load priority evaluation method and system, processing equipment and a storage medium, and the method comprises the steps: carrying out the risk evaluation of the load of an offshore oil and gas field platform, and quantifying the influence degree after the failure of the functional equipment of the offshore oil and gas field platform; the superposition coefficient of each functional device of the offshore oil and gas field platform is determined in real time; according to the influence degree after the failure of the functional equipment of the offshore oil and gas field platform and the superposition coefficient of the functional equipment determined in real time, calculating the risk assessment value of the failure of each functional equipment of the offshore oil and gas field platform in real time; according to the risk assessment value of the failure of each functional device of the offshore oil and gas field platform calculated in real time, load priority distribution is carried out on the functional devices of the offshore oil and gas field platform in real time, and the method can be widely applied to the field of stable operation of offshore oil and gas field platform power grids.

Description

Technical Field

[0001] The present invention relates to the field of stable operation of power grids for offshore oil and gas field platforms, and particularly to a method, system, processing device, and storage medium for evaluating the load priority of power grids for offshore oil and gas field platforms. Background Art

[0002] With the continuous expansion of the scale of deep - sea oil and gas resource development, offshore oil and gas production platforms are developing rapidly towards intensification and intelligence. As the lifeline project of offshore oil and gas fields, the reliability and stability of the power supply system directly determine the safe operation level of the entire production system. An offshore oil and gas field platform is a complex system, and its operation depends on multiple key devices, such as compressors, pumps, drilling equipment, and control systems. These devices are crucial for the normal production of oil and gas fields. Once these key devices fail due to power interruption or voltage fluctuation, it will directly affect production efficiency and may even lead to serious safety accidents.

[0003] Currently, the offshore oil and gas field power system shows significant particularities: First, the limited space on the platform results in the installed capacity of generators usually being only 40% - 60% of that of similar on - shore facilities, and it is necessary to simultaneously meet the power consumption requirements in multiple dimensions such as process equipment, safety systems, and life support. Second, the failure rate of equipment in the harsh marine environment is 2 - 3 orders of magnitude higher than that on land. Third, the maintenance response time is restricted by offshore operating conditions, and the average recovery time after a power interruption is 4 - 7 times that of the land environment. These characteristics make the division of load priority not only related to economic benefits but also a key guarantee for safe survival.

[0004] During the production process of offshore oil and gas fields, different electrical equipment has different importance for production. The power resources of offshore oil and gas field platforms are limited. It is necessary to clarify the importance of various loads, sort them according to their importance levels, set higher priorities for important loads, and ensure that when the power grid fails, the power supply to these loads is restored first; in the case of tight power resources, the power supply to important loads can be guaranteed first to avoid affecting production due to improper resource allocation. Reasonable allocation of power resources is of great significance for improving production efficiency and reducing operating costs.

[0005] However, the methods in the prior art mainly directly and artificially set the load priority according to work experience, and there is no objective and reliable method for evaluating the load priority of power grids. Summary of the Invention

[0006] Aiming at the above problems, the purpose of the present invention is to provide an objective and reliable method, system, processing device, and storage medium for evaluating the load priority of power grids for offshore oil and gas field platforms.

[0007] To achieve the above object, the present invention adopts the following technical solutions: In the first aspect, a method for evaluating the load priority of the power grid of an offshore oil and gas field platform is provided, including:

[0008] Conduct a risk assessment on the loads of the offshore oil and gas field platform to quantify the impact degree after the failure of the functional equipment on the offshore oil and gas field platform;

[0009] Determine the superposition coefficient of each functional equipment on the offshore oil and gas field platform in real time;

[0010] According to the impact degree after the failure of the functional equipment on the offshore oil and gas field platform and the superposition coefficient of the functional equipment determined in real time, calculate the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform in real time;

[0011] According to the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform calculated in real time, allocate the load priority of the functional equipment on the offshore oil and gas field platform in real time.

[0012] Further, based on the impact on safety after equipment failure, the characteristics of the working medium processed by the equipment, the impact on normal production, the cost loss of equipment failure, and the impact on the environment, conduct a risk assessment on the loads of the offshore oil and gas field platform.

[0013] Further, the types of the functional equipment include a mechanical production system, a drilling rig system, a reinjection system, a process system, a carbon capture and sequestration system, a heating and cooling system, an oil and gas treatment system, an external transportation system, and other auxiliary systems. Among them, the mechanical production system includes an electric submersible pump, the drilling rig system includes a drilling rig module and a workover rig, the reinjection system includes an injection water pump, a sewage pump, an oil sewage pump, a blower, a backwashing pump, an air flotation circulation pump, a power fluid injection pump, a subsea pipeline water blending pump, a backwashing fresh water pump, and a subsea pipeline replacement pump, the process system includes a natural gas compressor, an emergency replacement pump, a walnut shell supply pump, an electric dehydrator supply pump, a kill well pump, an open drain pump, a closed drain pump, a chemical agent pump, a mixer, a multi-way valve, an ultrafiltration circulation pump, a produced water booster pump, and a dual-medium filter transfer pump, the carbon capture and sequestration system includes a nitrogen production air compressor, the heating and cooling system includes a heat tracing tray, a waste heat recovery device, a heat medium circulation pump, a boiler feed water pump, a hot water tank, a metering electric heater, a production electric heater, a test production heater, a gas well production heater, a high-pressure oil well heater, a fuel gas heater, and a central air conditioner, the oil and gas treatment system includes an electrostatic coalescing separator, the external transportation system includes a crude oil export pump, and other auxiliary systems include a seawater lift pump, an electric crane, and a fire pump motor.

[0014] Further, the real-time determination of the superposition coefficient of each functional equipment on the offshore oil and gas field platform includes:

[0015] Set corresponding coefficients for the functional equipment of the same type respectively;

[0016] Based on the set coefficients, according to the load unloading conditions of functional devices of the same type, the superposition coefficients of each functional device of the offshore oil and gas field platform are determined in real time.

[0017] Further, the risk assessment value RPN j is:

[0018] RPN j =(S1 + S2 + S3 + S4 + S5)×O i

[0019] where j is the label of the device; S1, S2, S2, S4, S5 respectively represent the impact on safety after the failure of the functional device, the characteristics of the working medium processed by the device, the impact on normal production, the cost loss of device failure, and the evaluation score of the impact on the environment; O i represents the superposition coefficient of the functional device at time i.

[0020] Further, according to the risk assessment values of the failures of each functional device of the offshore oil and gas field platform calculated in real time, the load priority of the functional devices of the offshore oil and gas field platform is allocated in real time, including:

[0021] Sort the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in descending order;

[0022] According to the predetermined requirements, divide the priority levels of the functional devices into corresponding different levels to obtain the load priority levels of each functional device;

[0023] According to the load priority levels of each functional device, determine the key devices. When the available power of the power system of the offshore oil and gas field platform does not meet the preset requirements, consider unloading the determined key devices.

[0024] In a second aspect, a system for evaluating the load priority of the power grid of an offshore oil and gas field platform is provided, including:

[0025] A risk assessment module for determining the risk assessment of the load of the offshore oil and gas field platform and quantifying the impact degree after the failure of the functional devices of the offshore oil and gas field platform;

[0026] A superposition coefficient determination module for determining the superposition coefficients of each functional device of the offshore oil and gas field platform in real time;

[0027] A risk assessment value calculation module for calculating the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in real time according to the impact degree after the failure of the functional devices of the offshore oil and gas field platform and the superposition coefficients of the functional devices determined in real time;

[0028] A load priority allocation module is used to allocate load priorities to the functional devices of an offshore oil and gas field platform in real time according to the risk assessment values of the failures of each functional device of the offshore oil and gas field platform calculated in real time.

[0029] Further, the load priority allocation module includes:

[0030] A sorting unit is used to sort the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in descending order;

[0031] A level determination unit is used to divide the priorities of the functional devices into corresponding different levels according to predetermined requirements to obtain the load priority levels of each functional device;

[0032] A key device determination unit is used to determine key devices according to the load priority levels of each functional device, and when the available power of the power system of the offshore oil and gas field platform does not meet the preset requirements, consider unloading the determined key devices.

[0033] In a third aspect, a processing device is provided, including computer program instructions, wherein when the computer program instructions are executed by the processing device, they are used to implement the steps corresponding to the above-mentioned method for evaluating the load priority of the power grid of an offshore oil and gas field platform.

[0034] In a fourth aspect, a computer-readable storage medium is provided, on which computer program instructions are stored, wherein when the computer program instructions are executed by a processor, they are used to implement the steps corresponding to the above-mentioned method for evaluating the load priority of the power grid of an offshore oil and gas field platform.

[0035] Due to the above technical solutions adopted by the present invention, it has the following advantages:

[0036] 1. The present invention is applicable to the power grid of offshore oil and gas field platforms with frequently changing operating conditions.

[0037] 2. The present invention can realize the intelligent management and control of loads with different importance levels.

[0038] 3. The present invention can reasonably and dynamically adjust the configuration of power resources according to the priority and real-time operating status of the loads, optimize the operating efficiency of the power grid and reduce production and operation costs.

[0039] In summary, the present invention can be widely applied to the field of stable operation of the power grid of offshore oil and gas field platforms. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Throughout the drawings, like reference numerals are used to denote like components. In the drawings:

[0041] Figure 1 is a schematic flow chart of a method provided by an embodiment of the present invention. Specific embodiments

[0042] The exemplary embodiments of the present invention will be described in more detail below with reference to the drawings. Although the exemplary embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided so that the present invention can be more thoroughly understood and the scope of the present invention can be fully conveyed to those skilled in the art.

[0043] It should be understood that the terms used herein are for the purpose of describing particular example embodiments only and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" as used herein may also include the plural forms. The terms "comprising", "including", "containing" and "having" are inclusive and thus specify the presence of the stated features, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring them to be performed in the particular order described or illustrated, unless the order of performance is explicitly stated. It should also be understood that additional or alternative steps may be used.

[0044] Although the terms first, second, third, etc. may be used in this document to describe multiple elements, components, regions, layers, and / or sections, these elements, components, regions, layers, and / or sections should not be limited by these terms. These terms may be used only to distinguish one element, component, region, layer, or section from another. Unless the context clearly indicates otherwise, terms such as "first", "second", and other numerical terms used herein do not imply an order or sequence. Thus, a first element, component, region, layer, or section discussed below may be referred to as a second element, component, region, layer, or section without departing from the teachings of the example embodiments.

[0045] Currently, the methods in the prior art mainly directly and artificially set the priority of loads based on work experience, and there is no objective and reliable method for evaluating the priority of power grid loads. The embodiment of the present invention provides a method for evaluating the priority of power grid loads on an offshore oil and gas field platform, including: performing a risk assessment on the loads of the offshore oil and gas field platform to quantify the impact degree after the failure of the functional equipment on the offshore oil and gas field platform; determining the superposition coefficient of each functional equipment on the offshore oil and gas field platform in real time; calculating the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform in real time according to the impact degree after the failure of the functional equipment on the offshore oil and gas field platform and the superposition coefficient of the functional equipment determined in real time; and performing load priority allocation on the functional equipment on the offshore oil and gas field platform in real time according to the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform calculated in real time. The present invention realizes the evaluation of load priority based on the real-time operation state of the power grid of the offshore oil and gas field platform, and can reasonably and dynamically adjust the allocation of power resources according to the load priority and the real-time operation state, optimize the operation efficiency of the power grid and reduce the production and operation costs, which is beneficial to reasonably and dynamically allocate power resources and optimize the operation efficiency of the power grid.

[0046] Embodiment 1

[0047] As Figure 1 shown, this embodiment provides a method for evaluating the priority of power grid loads on an offshore oil and gas field platform, including the steps of:

[0048] 1) Based on the impact on safety after equipment failure, the characteristics of the working medium processed by the equipment, the impact on normal production, the cost loss of equipment failure, and the impact on the environment, perform a risk assessment on the loads of the offshore oil and gas field platform to quantify the impact degree after the failure of the functional equipment on the offshore oil and gas field platform.

[0049] Specifically, the types of functional equipment include artificial lift systems, drilling rig systems, reinjection systems, process systems, carbon capture and decarbonization systems, heating and cooling systems, oil and gas processing systems, export systems, and other auxiliary systems. The artificial lift system includes electrical submersible pumps. The drilling rig system includes drilling rig modules and workover rigs. The reinjection system includes injection pumps, sewage pumps, waste oil pumps, blowers, backwashing pumps, air flotation circulation pumps, power fluid injection pumps, subsea pipeline water blending pumps, backwashing fresh water pumps, and subsea pipeline replacement pumps. The process system includes natural gas compressors, emergency replacement pumps, walnut shell supply pumps, electro-dehydrator supply pumps, kill pumps, open drain pumps, closed drain pumps, chemical pumps, mixers, multi-way valves, ultrafiltration circulation pumps, produced water booster pumps, and dual-media filter transfer pumps. The carbon capture and decarbonization system includes nitrogen-making air compressors. The heating and cooling system includes tracing trays (tracing transformers), waste heat recovery devices, hot medium circulation pumps, boiler feed pumps, hot water tanks, metering electric heaters, production electric heaters, test production heaters, gas well production heaters, high-pressure oil well heaters, fuel gas heaters, and central air conditioners. The oil and gas processing system includes electrostatic coalescing separators. The export system includes crude oil export pumps. The other auxiliary systems include seawater lift pumps, electric cranes, and fire pump motors, as shown in Table 1 below:

[0050] Table 1: Functional Equipment of Offshore Oil and Gas Field Production Platforms

[0051]

[0052]

[0053] Specifically, the degrees of impact after the failure of the functional equipment on the offshore oil and gas field platform are shown in Tables 2 to 6 below:

[0054] Table 2: Assessment of the Impact of Equipment Failure on Safety

[0055]

[0056] Table 3: Assessment of the Characteristics of the Media Handled by Equipment

[0057]

[0058] Table 4: Assessment of the Impact of Equipment Failure on Normal Production

[0059]

[0060] Table 5: Assessment of the Cost Losses Caused by Equipment Failure

[0061]

[0062] Table 6: Assessment of the Impact of Equipment Failure on the Environment

[0063]

[0064] 2) Determine the superposition coefficients of each functional device on the offshore oil and gas field platform in real time, specifically:

[0065] 2.1) Set corresponding coefficients for functional devices of the same type respectively.

[0066] 2.2) Based on the set coefficients, determine the superposition coefficients of each functional device on the offshore oil and gas field platform in real time according to the load unloading conditions of functional devices of the same type.

[0067] Specifically, the setting principle is: regard the superposition influence degree corresponding to the load unloading ratio of functional devices of the same type as the superposition coefficient. When the loads of functional devices of the same type are unloaded simultaneously, the influence will be much greater than when only one device of this type of functional device has its load unloaded.

[0068] For example: The shutdown of one injection water pump has little impact on production, but the simultaneous shutdown of multiple injection water pumps may cause the formation pressure to drop rapidly, which will not only lead to a decrease in the oil well production, but also increase the risk of blowout, and even may cause the formation fluid to leak into the environment, resulting in serious environmental pollution.

[0069] As shown in Table 7 below are the reference values of the superposition coefficients of a certain type of functional device:

[0070] Table 7: Reference values of the superposition coefficients of a certain type of functional device

[0071]

[0072] 3) Calculate the risk assessment values of the failures of each functional device on the offshore oil and gas field platform in real time according to the influence degree after the failure of the functional device on the offshore oil and gas field platform and the superposition coefficients of the functional devices determined in real time.

[0073] Specifically, the risk assessment value RPN j The calculation formula is:

[0074] RPN j =(S1 + S2 + S3 + S4 + S5)×O i

[0075] Where j is the label of the device; S1, S2, S2, S4, S5 respectively represent the evaluation scores of the influence on safety, the characteristics of the working medium processed by the device, the influence on normal production, the cost loss of device failure, and the influence on the environment after the failure (unloading) of the functional device; O i represents the superposition influence degree corresponding to the load unloading ratio of the same type of functional devices to which the functional device belongs at the i-th moment, that is, the superposition coefficient.

[0076] 4) According to the risk assessment values of the failure of each functional device of the offshore oil and gas field platform calculated in real time, the load priority of the functional devices of the offshore oil and gas field platform is allocated in real time, specifically as follows:

[0077] 4.1) Sort the risk assessment values of the failure of each functional device of the offshore oil and gas field platform in descending order.

[0078] 4.2) According to the predetermined requirements, divide the priority levels of the functional devices into corresponding different levels to obtain the load priority levels of each functional device. Among them, the load priority levels can be customized according to the actual situation.

[0079] 4.3) Determine the key devices according to the load priority levels of each functional device. When the available power of the power system of the offshore oil and gas field platform is insufficient, the determined key devices are considered for unloading last.

[0080] Specifically, the risk assessment value RPN j is not a fixed value. This is because the operating state of the electrical equipment in the power system of the offshore oil and gas field platform can change at any time, resulting in the superposition coefficient O i being a time-varying value. When it is recognized that the state of any functional device in the power system has switched, for example, a certain functional device changes from the unloading state to the operating state or a certain functional device changes from the operating state to the unloading state, the risk assessment value will be recalculated and the load priority levels will be updated to adapt to the power system under the current operating conditions.

[0081] Specifically, as shown in Table 8, the priority levels of the functional devices can be divided into 9 priority levels according to the sorting results. The top 10% of the functional devices with high risk assessment values are defined as the highest level 9, which are defined as key devices, that is, the devices that are considered for unloading last when the available power of the power system is insufficient. The devices with scores of 10% - 20% are defined as level 8, and so on. A device list with priority levels from 1 to 9 can be obtained. The devices with priority level 5:

[0082] Table 8: Priority Allocation of Functional Devices

[0083]

[0084]

[0085] Example 2

[0086] This example provides an offshore oil and gas field platform power grid load priority assessment system, including:

[0087] A risk assessment module for determining the risk assessment of the load of the offshore oil and gas field platform and quantifying the impact degree after the failure of the functional devices of the offshore oil and gas field platform;

[0088] The superposition coefficient determination module is used to determine the superposition coefficients of each functional device of the offshore oil and gas field platform in real time;

[0089] The risk assessment value calculation module is used to calculate the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in real time according to the impact degree after the failure of the functional device of the offshore oil and gas field platform and the superposition coefficients of the functional devices determined in real time;

[0090] The load priority allocation module is used to allocate the load priorities of the functional devices of the offshore oil and gas field platform in real time according to the risk assessment values of the failures of each functional device of the offshore oil and gas field platform calculated in real time.

[0091] In a preferred embodiment, the load priority allocation module includes:

[0092] The sorting unit is used to sort the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in descending order;

[0093] The level determination unit is used to divide the priority levels of the functional devices into corresponding different levels according to the predetermined requirements to obtain the load priority levels of each functional device;

[0094] The key device determination unit is used to determine the key devices according to the load priority levels of each functional device, and when the available power of the power system of the offshore oil and gas field platform is insufficient, the determined key devices are considered for unloading last.

[0095] The system provided in this embodiment is used to execute the above method embodiments. For the specific process and detailed content, please refer to the above embodiments and will not be elaborated here.

[0096] Embodiment 3

[0097] This embodiment provides a processing device corresponding to the method for evaluating the load priority of the power grid of the offshore oil and gas field platform provided in Embodiment 1. The processing device can be a processing device applicable to a client, such as a mobile phone, a laptop computer, a tablet computer, a desktop computer, etc., to execute the method of Embodiment 1.

[0098] The processing device includes a processor, a memory, a communication interface and a bus. The processor, the memory and the communication interface are connected through the bus to complete the communication with each other. The memory stores a computer program that can run on the processing device. When the processing device runs the computer program, it executes the method for evaluating the load priority of the power grid of the offshore oil and gas field platform provided in Embodiment 1 of this embodiment.

[0099] In some implementations, the memory may be high-speed random access memory (RAM), and may also include non-volatile memory, such as at least one disk memory.

[0100] In other implementations, the processor may be various types of general-purpose processors such as a central processing unit (CPU) or a digital signal processor (DSP), which are not limited herein.

[0101] In addition, when the logical instructions in the above-mentioned memory are implemented in the form of software functional units and sold or used as independent products, they can be stored in a computer-readable storage medium. Based on such an understanding, the technical solution of the present invention, in essence, or the part that contributes to the prior art, or a part of this technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the methods described in various embodiments of the present invention. The aforementioned storage medium includes: various media such as USB flash drives, mobile hard disks, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical discs that can store program codes.

[0102] Those skilled in the art can understand that the structure of the above-mentioned computing device is only a part of the structure related to the solution of the present invention, and does not constitute a limitation on the computing device to which the solution of the present invention is applied. The specific computing device may include more or fewer components, or combine certain components, or have different component arrangements.

[0103] Embodiment 4

[0104] This embodiment provides a computer program product corresponding to the method for evaluating the grid load priority of an offshore oil and gas field platform provided in Embodiment 1. The computer program product may include a computer-readable storage medium, on which computer-readable program instructions for executing the method for evaluating the grid load priority of the offshore oil and gas field platform described in Embodiment 1 are uploaded.

[0105] A computer-readable storage medium may be a tangible device that retains and stores instructions used by an instruction execution device. A computer-readable storage medium may be, for example, but not limited to, an electrical storage device, a magnetic storage device, an optical storage device, an electromagnetic storage device, a semiconductor storage device, or any combination of the above.

[0106] A computer-readable storage medium provided by the above embodiments has the same implementation principle and technical effects as those of the above method embodiments, and will not be elaborated herein.

[0107] The present invention is described with reference to the flowcharts and / or block diagrams of methods, apparatuses (systems), and computer program products according to embodiments of the present invention. It should be understood that each process and / or block in the flowchart and / or block diagram, and the combination of processes and / or blocks in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to the processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing devices to generate a machine, such that the instructions executed by the processor of the computer or other programmable data processing devices generate a device for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0108] These computer program instructions can also be stored in a computer-readable memory that can direct a computer or other programmable data processing devices to work in a specific manner, such that the instructions stored in the computer-readable memory generate a manufactured article including an instruction device, and the instruction device implements the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0109] These computer program instructions can also be loaded onto a computer or other programmable data processing devices, such that a series of operation steps are executed on the computer or other programmable devices to generate a computer-implemented process, and thus the instructions executed on the computer or other programmable devices provide steps for implementing the functions specified in Figure 1 one process or multiple processes and / or blocks Figure 1 one block or multiple blocks.

[0110] The above embodiments are only used to illustrate the present invention. The structures, connection manners, manufacturing processes, etc. of the components can all be changed. Any equivalent transformation and improvement made on the basis of the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. A method for evaluating the load priority of the power grid of an offshore oil and gas field platform, characterized in that, Including: Conducting a risk assessment on the loads of an offshore oil and gas field platform to quantify the impact degree after the failure of the functional equipment on the offshore oil and gas field platform; Determining in real time the superposition coefficient of each functional equipment on the offshore oil and gas field platform; According to the impact degree after the failure of the functional equipment on the offshore oil and gas field platform and the superposition coefficient of the functional equipment determined in real time, calculating in real time the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform; According to the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform calculated in real time, conducting a load priority allocation for the functional equipment on the offshore oil and gas field platform in real time.

2. The method for evaluating the load priority of the power grid of an offshore oil and gas field platform according to claim 1, wherein Conducting a risk assessment on the loads of an offshore oil and gas field platform based on the impact on safety after equipment failure, the characteristics of the working medium processed by the equipment, the impact on normal production, the cost loss of equipment failure, and the impact on the environment.

3. The method for evaluating the load priority of the power grid of an offshore oil and gas field platform according to claim 1, wherein The types of the functional equipment include a mechanical production system, a drilling rig system, a reinjection system, a process system, a carbon capture and sequestration system, a heating and cooling supply system, an oil and gas treatment system, an external transportation system, and other auxiliary systems. Among them, the mechanical production system includes an electric submersible pump, the drilling rig system includes a drilling rig module and a workover rig, the reinjection system includes an injection water pump, a sewage pump, an oil sewage pump, a blower, a backwashing pump, an air flotation circulation pump, a power fluid injection pump, a submarine pipeline blending water pump, a backwashing fresh water pump, and a submarine pipeline replacement pump, the process system includes a natural gas compressor, an emergency replacement pump, a walnut shell supply pump, an electro-dehydrator supply pump, a kill well pump, an open drain pump, a closed drain pump, a chemical agent pump, a mixer, a multi-way valve, an ultrafiltration circulation pump, a production water booster pump, and a dual-media filter transfer pump, the carbon capture and sequestration system includes a nitrogen-making air compressor, the heating and cooling supply system includes a heat tracing tray, a waste heat recovery device, a heat medium circulation pump, a boiler feed water pump, a hot water tank, a metering electric heater, a production electric heater, a test production heater, a gas well production heater, a high-pressure oil well heater, a fuel gas heater, and a central air conditioner, the oil and gas treatment system includes an electrostatic coalescence separator, the external transportation system includes a crude oil external transportation pump, and other auxiliary systems include a seawater lift pump, an electric crane, and a fire pump motor.

4. The method for evaluating the load priority of the power grid of an offshore oil and gas field platform according to claim 1, wherein The real-time determination of the superposition coefficient of each functional equipment on the offshore oil and gas field platform includes: Setting corresponding coefficients for the functional equipment of the same type respectively; Based on the set coefficients, determining in real time the superposition coefficient of each functional equipment on the offshore oil and gas field platform according to the load unloading situation of the functional equipment of the same type.

5. The method for evaluating the load priority of the power grid of an offshore oil and gas field platform according to claim 2, characterized in that, The risk assessment value RPN j is as follows: RPN j =(S1 + S2 + S3 + S4 + S5) × O i where j is the label of the device; S1, S2, S2, S4, and S5 respectively represent the impact on safety after the failure of the functional device, the characteristics of the working medium processed by the device, the impact on normal production, the cost loss of device failure, and the evaluation score of the impact on the environment; O i represents the superposition coefficient of the functional device at time i.

6. The method for evaluating the load priority of the power grid of an offshore oil and gas field platform according to claim 1, wherein, The real-time load priority allocation for the functional equipment on the offshore oil and gas field platform according to the risk assessment value of the failure of each functional equipment on the offshore oil and gas field platform calculated in real time includes: Sorting the risk assessment values of the failure of each functional equipment on the offshore oil and gas field platform in descending order; Dividing the priority levels of the functional equipment into corresponding different levels according to the predetermined requirements to obtain the load priority level numbers of each functional equipment; Determining key equipment according to the load priority level numbers of each functional equipment, and considering unloading the determined key equipment when the available power of the power system on the offshore oil and gas field platform does not meet the preset requirements.

7. An offshore oil and gas field platform power grid load priority evaluation system, characterized in that, Including: A risk assessment module for determining to conduct a risk assessment on the loads of an offshore oil and gas field platform to quantify the impact degree after the failure of the functional equipment on the offshore oil and gas field platform; The superposition coefficient determination module is used to determine the superposition coefficients of each functional device of the offshore oil and gas field platform in real time; The risk assessment value calculation module is used to calculate the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in real time according to the impact degree after the failure of the functional device of the offshore oil and gas field platform and the superposition coefficients of the functional devices determined in real time; The load priority allocation module is used to allocate the load priorities of the functional devices of the offshore oil and gas field platform in real time according to the risk assessment values of the failures of each functional device of the offshore oil and gas field platform calculated in real time.

8. The offshore oil and gas field platform power grid load priority evaluation system according to claim 7, characterized in that The load priority allocation module includes: The sorting unit is used to sort the risk assessment values of the failures of each functional device of the offshore oil and gas field platform in descending order; The level determination unit is used to divide the priorities of the functional devices into corresponding different levels according to the predetermined requirements to obtain the load priority levels of each functional device; The key device determination unit is used to determine the key devices according to the load priority levels of each functional device. When the available power of the power system of the offshore oil and gas field platform does not meet the preset requirements, the determined key devices are considered to be unloaded.

9. A processing device, characterized in that, It includes computer program instructions, wherein when the computer program instructions are executed by a processing device, they are used to implement the steps corresponding to the method for evaluating the load priority of the power grid of the offshore oil and gas field platform according to any one of claims 1-6.

10. A computer-readable storage medium, characterized in that, Computer program instructions are stored on the computer-readable storage medium, wherein when the computer program instructions are executed by a processor, they are used to implement the steps corresponding to the method for evaluating the load priority of the power grid of the offshore oil and gas field platform according to any one of claims 1-6.

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