Ultrahigh-temperature and high-pressure blowout preventer group and control system intelligent fault diagnosis method and system

Abstract

The invention belongs to the field of petroleum engineering, and particularly relates to an ultra-high-temperature and high-pressure blowout preventer set and control system fault diagnosis method and system fusing a deep learning model and an expert knowledge model. The invention discloses an ultrahigh-temperature and high-pressure blowout preventer group and a control system fault diagnosis method. The method comprises three steps of sensor signal data acquisition, sensor signal data fault feature extraction and fault diagnosis reasoning model establishment. An intelligent fault diagnosis system for an ultrahigh-temperature and high-pressure blowout preventer group and a control system comprises an ultrahigh-temperature and high-pressure pressure supply system, an ultrahigh-temperature and high-pressure pilot gas source system, the ultrahigh-temperature and high-pressure blowout preventer group, an ultrahigh-temperature and high-pressure electric power control system, an ultrahigh-temperature and high-pressure sensor signal data acquisition system and a state monitoring and fault alarm system.

Description

Technical Field

[0001] The present invention belongs to the field of petroleum engineering, and in particular, relates to an intelligent fault diagnosis method and system for an ultra-high temperature and high pressure blowout preventer group and a control system. Background Art

[0002] With the rapid development of offshore oil development, the scope of modern offshore oil exploration and development has gradually expanded from offshore and shallow waters to offshore and deep sea areas. With the increasing depth of the operating water, the environment is becoming more and more complex, which greatly increases the difficulty of offshore oil drilling and development. Generally, blowout is considered the most serious accident in offshore oil drilling and development. Once it occurs, it will cause catastrophic consequences.

[0003] The UHTHP BOP group and control system are the most important well control safety barriers in the UHTHP well drilling process. The UHTHP BOP group and control system are used to actively control the UHTHP drilling fluid to manage wellbore instability. The UHTHP BOP group and control system are designed to limit formation fluid from reaching low-pressure equipment. The loss of its key functions may endanger the safety of personnel and the environment on the drilling platform. Traditionally, ensuring the availability of the UHTHP BOP group and control system requires continuous maintenance and repair, making it the system with the highest maintenance and operating costs.

[0004] The fault diagnosis technology that integrates deep learning models and expert knowledge models makes full use of the extraction capabilities of artificial intelligence algorithms, sensor historical data, expert experience and other methods to extract hidden fault information from the real-time synchronized ultra-high temperature and high pressure blowout preventer group and control system sensors, determine the fault type and fault location, thereby effectively improving the fault diagnosis accuracy of the ultra-high temperature and high pressure blowout preventer group and control, and ensuring its safe operation. Therefore, there is an urgent need for intelligent fault diagnosis methods and systems for ultra-high temperature and high pressure blowout preventer groups and control systems. Summary of the invention

[0005] In order to overcome the defects of the prior art, the present invention provides an intelligent fault diagnosis method and system for an ultra-high temperature and high pressure blowout preventer group and a control system.

[0006] According to one aspect of the present invention, an intelligent fault diagnosis method for an ultra-high temperature and high pressure blowout preventer group and control system is provided, comprising three steps: sensor signal data acquisition, sensor signal data fault feature extraction and fault diagnosis reasoning model establishment.

[0007] The specific steps of sensor signal data collection are:

[0008] A01: According to the structure of the ultra-high temperature and high pressure blowout preventer group and control system, the system is divided into the electronic control subsystem, the hydraulic control subsystem and the mechanical subsystem; according to the different types of sensors arranged on each system, a multi-source information acquisition channel for the ultra-high temperature and high pressure blowout preventer group and control system is established;

[0009] A02: Based on the multi-source information acquisition channel and multi-source information fusion technology of the ultra-high temperature and high pressure blowout preventer group and control system, the multi-source information fusion of the ultra-high temperature and high pressure blowout preventer group and control system sensors is realized.

[0010] The specific steps of fault feature extraction of sensor signal data are as follows:

[0011] A11: Construct a convolutional neural network model based on multi-source information of ultra-high temperature and high pressure blowout preventer group and control system, and determine the topological structure of the convolutional neural network model; use four genetic operations, selection, replication, crossover and mutation, to optimize the hyperparameters of the convolutional neural network model; train the convolutional neural network model based on the historical data generated during the operation of the ultra-high temperature and high pressure blowout preventer group and control system;

[0012] A12: Read the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system; use the normalization method to preprocess the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and the normalization method uses the maximum and minimum normalization; standardize the preprocessed multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system using the Z-score standardization method; use the kernel slow feature analysis method to expand the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and the expansion channel is 2; use the trained convolutional neural network model to extract the fault characteristics of the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and realize the pre-diagnosis of the ultra-high temperature and high pressure blowout preventer group and control system.

[0013] The specific steps of establishing the fault diagnosis reasoning model are as follows:

[0014] A21: Construct a Bayesian network structure model for the ultra-high temperature and high pressure BOP group and control system, including additional information layer, monitoring layer and fault layer;

[0015] A22: Use the Noisy-OR model, Noisy-MAX model and conditional probability table to build a Bayesian network parameter model for the ultra-high temperature and high pressure BOP group and control system;

[0016] A23: Extract the pre-diagnosis results of the ultra-high temperature and high pressure blowout preventer group and control system, use the Bayesian network model to infer the failure probability and failure location of each component; and construct fault identification criteria rules to determine whether each component is in a faulty state.

[0017] According to another aspect of the present invention, an ultra-high temperature and high pressure blowout preventer group and control system intelligent fault diagnosis system is provided, including: an ultra-high temperature and high pressure pressure supply system, an ultra-high temperature and high pressure pilot gas source system, an ultra-high temperature and high pressure blowout preventer group, an ultra-high temperature and high pressure power control system, an ultra-high temperature and high pressure sensor signal data acquisition system and a status monitoring and fault alarm system.

[0018] The ultra-high temperature and high pressure pressure supply system comprises: an ultra-high temperature and high pressure first pressure supply accumulator group, an ultra-high temperature and high pressure second pressure supply accumulator group, an ultra-high temperature and high pressure third pressure supply accumulator group, an ultra-high temperature and high pressure first pressure supply pump group, an ultra-high temperature and high pressure second pressure supply pump group, an ultra-high temperature and high pressure accumulator group sensor signal data processing unit, an ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit, an ultra-high temperature and high pressure pump group sensor signal data processing unit, an ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit and an ultra-high temperature and high pressure pressure supply system photoelectric conversion unit; the ultra-high temperature and high pressure first pressure supply accumulator group, the ultra-high temperature and high pressure second pressure supply accumulator group and the ultra-high temperature and high pressure third pressure supply accumulator group are connected through an oil pipeline; the ultra-high temperature and high pressure third pressure supply accumulator group is connected to the ultra-high temperature and high pressure first pressure supply pump group through an oil pipeline connected; the ultra-high temperature and high pressure first pressure supply pump group and the ultra-high temperature and high pressure second pressure supply pump group are connected through an oil pipeline; the ultra-high temperature and high pressure accumulator group sensor signal data processing unit is connected to the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure pump group sensor signal data processing unit is connected to the ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit is connected to the status monitoring and fault alarm system through optical fiber.

[0019] The ultra-high temperature and high pressure pilot gas source system comprises: an ultra-high temperature and high pressure first pilot pneumatic shear valve, an ultra-high temperature and high pressure second pilot pneumatic shear valve, an ultra-high temperature and high pressure first pilot pneumatic universal valve, an ultra-high temperature and high pressure second pilot pneumatic universal valve, an ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit, an ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit, an ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit, an ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit and an ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit; the ultra-high temperature and high pressure first pilot pneumatic shear valve is connected to the gas source through a gas source pipeline; the ultra-high temperature and high pressure second pilot pneumatic shear valve is connected to the gas source through a gas source pipeline; the ultra-high temperature and high pressure first pilot pneumatic universal valve is connected to the gas source through a gas source pipeline; the ultra-high temperature and high pressure The second pilot pneumatic universal valve is connected to the gas source through the gas source pipeline; the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit is connected to the ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit through the signal cable; the ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit through the signal cable; the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit is connected to the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit through the signal cable; the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit through the signal cable; the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit is connected to the status monitoring and fault alarm system through optical fiber.

[0020] The ultra-high temperature and high pressure blowout preventer group includes: an ultra-high temperature and high pressure shear manifold first solenoid valve, an ultra-high temperature and high pressure shear manifold second solenoid valve, an ultra-high temperature and high pressure universal manifold first solenoid valve, an ultra-high temperature and high pressure universal manifold second solenoid valve, an ultra-high temperature and high pressure gate blowout preventer, an ultra-high temperature and high pressure annular blowout preventer, an ultra-high temperature and high pressure shear manifold sensor group signal data processing unit, an ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit, an ultra-high temperature and high pressure universal manifold sensor group signal data processing unit, an ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit and an ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit; the ultra-high temperature and high pressure shear manifold first solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline; the ultra-high temperature and high pressure shear manifold second solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline; the ultra-high temperature and high pressure universal manifold first solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline; the ultra-high temperature and high pressure universal manifold second solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline With the ultra-high temperature and high pressure pressure supply system; the ultra-high temperature and high pressure gate blowout preventer is connected to the first solenoid valve of the ultra-high temperature and high pressure shear manifold through an oil pipeline; the ultra-high temperature and high pressure annular blowout preventer is connected to the first solenoid valve of the ultra-high temperature and high pressure universal manifold and the second solenoid valve of the ultra-high temperature and high pressure universal manifold through an oil pipeline; the signal data processing unit of the ultra-high temperature and high pressure shear manifold sensor group is connected to the ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit through a signal cable; the signal data processing unit of the ultra-high temperature and high pressure universal manifold sensor group is connected to the ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit is connected to the status monitoring and fault alarm system through an optical fiber.

[0021] The ultra-high temperature and high voltage power control system comprises: a direct current power supply, a main control panel, an analog input and output unit, an industrial Ethernet switch and an Ethernet optical fiber conversion unit; the direct current power supply is connected to the main control panel, the analog input and output unit, the industrial Ethernet switch and the Ethernet optical fiber conversion unit through cables; the analog input and output unit is connected to the main control panel through cables; the industrial Ethernet switch is connected to the analog input and output unit through cables; and the Ethernet optical fiber conversion unit is connected to the industrial Ethernet switch through cables.

[0022] The ultra-high temperature and high pressure sensor signal data acquisition system comprises: an ultra-high temperature and high pressure accumulator group sensor group, an ultra-high temperature and high pressure pump group sensor group, an ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group, an ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group, an ultra-high temperature and high pressure shear manifold sensor group and an ultra-high temperature and high pressure universal manifold sensor group; an ultra-high temperature and high pressure accumulator group sensor group is connected to an ultra-high temperature and high pressure accumulator group sensor signal data processing unit through a signal cable; an ultra-high temperature and high pressure pump group sensor group is connected to an ultra-high temperature and high pressure pump group sensor signal data processing unit through a signal cable; ultra-high temperature and high pressure pump group sensor group is connected to an ultra-high temperature and high pressure pump group sensor signal data processing unit through a signal cable; ultra The high-temperature and high-pressure pilot pneumatic shear valve group sensor group is connected to the ultra-high-temperature and high-pressure pilot pneumatic shear valve group sensor group signal data processing unit through a signal cable; the ultra-high-temperature and high-pressure pilot pneumatic universal valve group sensor group is connected to the ultra-high-temperature and high-pressure pilot pneumatic universal valve group sensor group signal data processing unit through a signal cable; the ultra-high-temperature and high-pressure shear manifold sensor group is connected to the ultra-high-temperature and high-pressure shear manifold sensor group signal data processing unit through a signal cable; the ultra-high-temperature and high-pressure universal manifold sensor group is connected to the ultra-high-temperature and high-pressure universal manifold sensor group signal data processing unit through a signal cable.

[0023] The state monitoring and fault alarm system includes: an ultra-high temperature and high pressure fault display unit, an ultra-high temperature and high pressure sound and light alarm unit, an ultra-high temperature and high pressure fault reasoning and diagnosis unit, an ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit and an ultra-high temperature and high pressure state monitoring unit; the ultra-high temperature and high pressure fault display unit is connected to the ultra-high temperature and high pressure power control system through a signal cable; the ultra-high temperature and high pressure sound and light alarm unit is connected to the ultra-high temperature and high pressure fault display unit through a signal cable; the ultra-high temperature and high pressure fault reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure sound and light alarm unit through a signal cable; the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit is connected to the ultra-high temperature and high pressure fault reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure state monitoring unit is connected to the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit through a signal cable; BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the intelligent fault diagnosis method of the ultra-high temperature and high pressure blowout preventer group and control system

[0025] Figure 2 This is a schematic diagram of the structure of the intelligent fault reasoning model of the ultra-high temperature and high pressure blowout preventer group and control system

[0026] Figure 3 This is a schematic diagram of the ultra-high temperature and high pressure blowout preventer group and the intelligent control fault diagnosis system

[0027] In the figure, 101, ultra-high temperature and high pressure pressure supply system, 102, ultra-high temperature and high pressure first pressure supply accumulator group, 103, ultra-high temperature and high pressure second pressure supply accumulator group, 104, ultra-high temperature and high pressure third pressure supply accumulator group, 105, ultra-high temperature and high pressure first pressure supply pump group, 106, ultra-high temperature and high pressure second pressure supply pump group, 107, ultra-high temperature and high pressure accumulator group sensor signal data processing unit, 108, ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit, 109, ultra-high temperature and high pressure pump group sensor signal data processing unit, 110, ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit, 111, ultra-high temperature and high pressure pressure supply system photoelectric conversion unit, 112, Ultra-high temperature and high pressure pilot air source system, 113, Ultra-high temperature and high pressure first pilot pneumatic shear valve, 114, Ultra-high temperature and high pressure second pilot pneumatic shear valve, 115, Ultra-high temperature and high pressure first pilot pneumatic universal valve, 116, Ultra-high temperature and high pressure second pilot pneumatic universal valve, 117, Ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit, 118, Ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit, 119, Ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit, 120, Ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit, 121, Ultra-high temperature and high pressure pilot air source system photoelectric conversion unit , 122, ultra-high temperature and high pressure blowout preventer group, 123, ultra-high temperature and high pressure shear manifold first solenoid valve, 124, ultra-high temperature and high pressure shear manifold second solenoid valve, 125, ultra-high temperature and high pressure universal manifold first solenoid valve, 126, ultra-high temperature and high pressure universal manifold second solenoid valve, 127, ultra-high temperature and high pressure shear manifold sensor group signal data processing unit, 128, ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit, 129, ultra-high temperature and high pressure universal manifold sensor group signal data processing unit, 130, ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit, 131, ultra-high temperature and high pressure gate blowout preventer, 132, ultra-high temperature and high pressure annular blowout preventer, 133, Ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit, 134, ultra-high temperature and high pressure power control system, 135, DC power supply, 136, main control panel, 137, analog input and output unit, 138, industrial Ethernet switch, 139, Ethernet optical fiber conversion unit, 140, ultra-high temperature and high pressure sensor signal data acquisition system, 141, ultra-high temperature and high pressure accumulator group sensor group, 142, ultra-high temperature and high pressure pump group sensor group, 143, ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group, 144, ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group, 145, ultra-high temperature and high pressure shear manifold sensor group, 146, ultra-high temperature and high pressure universal manifold sensor group;147. Status monitoring and fault alarm system, 148. Ultra-high temperature and high pressure fault display unit, 149. Ultra-high temperature and high pressure sound and light alarm unit, 150. Ultra-high temperature and high pressure fault reasoning and diagnosis unit, 151. Ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit, 152. Ultra-high temperature and high pressure status monitoring unit. ; DETAILED DESCRIPTION

[0028] like Figure 1 As shown, according to one aspect of the present invention, an intelligent fault diagnosis method for an ultra-high temperature and high pressure blowout preventer group and control system is provided, comprising three steps: sensor signal data acquisition, sensor signal data fault feature extraction, and fault diagnosis reasoning model establishment.

[0029] The specific steps of sensor signal data collection are:

[0030] A01: According to the structure of the ultra-high temperature and high pressure blowout preventer group and control system, the system is divided into an electronic control subsystem, a hydraulic control subsystem and a mechanical subsystem; according to the different types of sensors arranged on each system, a multi-source information acquisition channel for the ultra-high temperature and high pressure blowout preventer group and control system is established:

[0031] 1. Analyze the signal types of the electronic control subsystem, including power signals, digital signals, analog signals, and optical fiber signals;

[0032] 2. Analyze the signal types of the hydraulic control subsystem, including humidity signal, pressure signal, flow signal, and temperature signal;

[0033] 3. Analyze the signal types of mechanical subsystems, including pressure signals, displacement signals, flow signals, and vibration signals;

[0034] 4. Establish a multi-source information collection channel for ultra-high temperature and high pressure blowout preventer group and control system.

[0035] A02: Based on the multi-source information acquisition channel and multi-source information fusion technology of the ultra-high temperature and high pressure blowout preventer group and control system, the multi-source information fusion of the ultra-high temperature and high pressure blowout preventer group and control system sensors is realized:

[0036] 1. Fuse similar types of sensor signals for fault pre-diagnosis;

[0037] 2. Isolation and processing of dissimilar sensor signals, applied to fault diagnosis reasoning model.

[0038] The specific steps of fault feature extraction of sensor signal data are as follows:

[0039] A11: Based on the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, a convolutional neural network model is constructed to determine the topological structure of the convolutional neural network model; four genetic operations, selection, replication, crossover and mutation, are used to optimize the hyperparameters of the convolutional neural network model; based on the historical data generated during the operation of the ultra-high temperature and high pressure blowout preventer group and control system, the convolutional neural network model is trained:

[0040] 1. Build a convolutional neural network model and determine the topological structure of the convolutional neural network model;

[0041] 2. Determine the hyperparameters of the convolutional neural network to be optimized, and predetermine the hyperparameter range of the convolutional neural network based on practical experience and experimental testing;

[0042] 3. Construct a preliminary convolutional neural network framework and pre-set the initial parameters of RCGA, including generation T, population chromosome number M, crossover probability Pc, mutation rate Pm and random chromosome operator Pr;

[0043] 4. The hyperparameters of the convolutional neural network are encoded into the chromosomes, and the initial hyperparameter population of the CNN is generated; each chromosome represents a convolutional neural network, which is trained and tested; then the fitness of each convolutional neural network is calculated and evaluated;

[0044] 5. Perform genetic operations on all chromosomes of the Nth generation, and the chromosomes with higher fitness and randomly generated new chromosomes are used to form the N+1th generation; exit the loop and obtain the optimized convolutional neural network hyperparameters;

[0045] 6. Use the gradient descent method and back propagation method to train the convolutional neural network. The calculation formula of the gradient descent method is as follows:

[0046]

[0047] Where: θ is the current parameter vector, α is the learning rate, which controls the magnitude of each update, is the gradient of the objective function J(θ) with respect to the parameter θ.

[0048] A12: Read the multi-source information of the ultra-high temperature and high pressure BOP group and control system; use the normalization method to preprocess the multi-source information of the ultra-high temperature and high pressure BOP group and control system, and the normalization method uses the maximum and minimum normalization; standardize the preprocessed multi-source information of the ultra-high temperature and high pressure BOP group and control system using the Z-score standardization method; use the kernel slow feature analysis method to expand the multi-source information of the ultra-high temperature and high pressure BOP group and control system, and the expansion channel is 2; use the trained convolutional neural network model to extract the fault characteristics of the multi-source information of the ultra-high temperature and high pressure BOP group and control system, and realize the pre-diagnosis of the ultra-high temperature and high pressure BOP group and control system:

[0049] 1. Use the maximum and minimum normalization method to preprocess the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system. The maximum and minimum normalization formula is:

[0050]

[0051] Where: x′ is the normalized value, min is the minimum value of all data points, and max is the maximum value of all data points.

[0052] 2. The pre-processed ultra-high temperature and high pressure BOP group and control system multi-source information is standardized using the Z-score standardization method:

[0053]

[0054] Among them, x is the original data, μ is the mean of the original data, σ is the standard deviation of the original data, and z is the standardized data.

[0055] 3. Use the kernel-slow feature analysis method to expand the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, expand the channel to 2, and optimize the following objectives:

[0056]

[0057] Among them, y j (t) represents the jth slow feature of the output vector, and <·> represents the average calculation operation, which can be defined as follows:

[0058]

[0059] The optimization goal of SFA can then be transformed into:

[0060]

[0061] Where A and B represent the matrix x(t) and the co-correlation coefficient of the matrix x(t) respectively. If the input sample is known, x(t) can be calculated as:

[0062]

[0063] 4. Use the trained convolutional neural network model to extract the multi-source information fault characteristics of the ultra-high temperature and high pressure blowout preventer group and control system, and realize the pre-diagnosis of the ultra-high temperature and high pressure blowout preventer group and control system.

[0064] The specific steps of establishing the fault diagnosis reasoning model are as follows:

[0065] A21: Construct a Bayesian network structure model of an ultra-high temperature and high pressure blowout preventer group and control system, including an additional information layer, a monitoring layer and a fault layer:

[0066] 1. Experts construct Bayesian additional information nodes based on the system's operating conditions, such as humidity and ambient temperature, to form an additional information layer;

[0067] 2. Based on the evidence of given observations from external information including vibration, maintenance and leakage, Bayesian monitoring nodes are constructed to form a monitoring layer;

[0068] 3. According to the system fault type, set the Bayesian fault node to form a fault layer.

[0069] like Figure 2 As shown in the figure, the fault pre-diagnosis result is used as a priori probability to input into the fault diagnosis layer, which consists of F1, F2, ... F n , n fault nodes; the additional information layer is set according to the system operating conditions, and the additional information layer consists of A1, A2, ...A m , m additional information nodes; the evidence is input into the monitoring layer as the node state, and the monitoring layer consists of M1, M2, …M s , composed of s monitoring nodes.

[0070] A22: Use the Noisy-OR model, Noisy-MAX model and conditional probability table to build the Bayesian network parameter model of the ultra-high temperature and high pressure blowout preventer group and control system:

[0071] 1. Fault nodes are divided into Boolean and non-Boolean nodes. Boolean nodes have two states, normal and abnormal, and non-Boolean nodes have three states, high, normal, and low.

[0072] 2. Use the Noisy-OR model to generate the conditional probability table for all Boolean nodes:

[0073]

[0074] Among them, q i is the probability of each parent node. i It can be expressed as:

[0075]

[0076] Among them, when X i True when Y is false, and all other parents are false. y′ is the iteration variable in the accumulation process, y′≤Y;

[0077] 3. Use the Noisy-MAX model to generate conditional probability tables for all Boolean nodes:

[0078]

[0079] Where X represents the parent node configuration of Y, X = x1, x2, ..., x n, and P(Y=0|X1=0,...,X n =0)=1.

[0080] A23: Extract the pre-diagnosis results of the ultra-high temperature and high pressure blowout preventer group and control system, use the Bayesian network model to infer the failure probability and failure location of each component; construct fault identification criteria and rules to determine whether each component is in a fault state:

[0081] 1) If the probability of the fault state in the fault layer is greater than 80%, the fault has occurred;

[0082] 2) If the probability of the fault state in the fault layer is greater than 30% and less than 80%, the fault may have occurred;

[0083] 3) If the probability of a fault state in the fault layer is less than 30%, the fault has not occurred.

[0084] like Figure 3 As shown, according to another aspect of the present invention, an ultra-high temperature and high pressure blowout preventer group and control system and intelligent fault diagnosis system are provided, including: an ultra-high temperature and high pressure pressure supply system 101, an ultra-high temperature and high pressure pilot gas source system 112, an ultra-high temperature and high pressure blowout preventer group 122, an ultra-high temperature and high pressure power control system 134, an ultra-high temperature and high pressure sensor signal data acquisition system 140, and a state monitoring and fault alarm system 147;

[0085] The ultra-high temperature and high pressure pressure supply system 101 can be subdivided into: an ultra-high temperature and high pressure pressure supply system execution unit and an ultra-high temperature and high pressure pressure supply system fault diagnosis unit; the ultra-high temperature and high pressure pressure supply system execution unit includes: an ultra-high temperature and high pressure first pressure supply accumulator group 102, an ultra-high temperature and high pressure second pressure supply accumulator group 103, an ultra-high temperature and high pressure third pressure supply accumulator group 104, an ultra-high temperature and high pressure first pressure supply pump group 105, and an ultra-high temperature and high pressure second pressure supply pump group 106; the ultra-high temperature and high pressure first pressure supply accumulator group 102, the ultra-high temperature and high pressure second pressure supply accumulator group 103, and the ultra-high temperature and high pressure third pressure supply accumulator group 104 are connected by an oil pipeline for maintaining The ultra-high temperature and high pressure blowout preventer group and the control system pressure supply are verified; the ultra-high temperature and high pressure third pressure supply accumulator group 104 is connected to the ultra-high temperature and high pressure first pressure supply pump group 105 through an oil pipeline; the ultra-high temperature and high pressure first pressure supply pump group 105 and the ultra-high temperature and high pressure second pressure supply pump group 106 are connected through an oil pipeline and start working when the system pressure decreases; the ultra-high temperature and high pressure pressure supply system fault diagnosis unit includes: an ultra-high temperature and high pressure accumulator group sensor signal data processing unit 107, an ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit 108, an ultra-high temperature and high pressure pump group sensor signal data processing unit 109, and an ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit 1 10, and the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit 111; the ultra-high temperature and high pressure accumulator group sensor signal data processing unit 107 is connected to the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit 108 through a signal cable, which is used to analyze and process the signal data of the ultra-high temperature and high pressure accumulator group sensor group 141; the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit 108 is connected to the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit 111 through a signal cable, which is used to pre-reason and diagnose the signal data of the ultra-high temperature and high pressure accumulator group sensor group 141; the ultra-high temperature and high pressure pump group sensor signal data processing unit 109 is connected to the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit 108 through a signal cable The ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit 110 is connected to analyze and process the signal data of the ultra-high temperature and high pressure pump group sensor group 142; the ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit 110 is connected to the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit 111 through a signal cable, and is used for pre-reasoning and diagnosing the signal data of the ultra-high temperature and high pressure pump group sensor group 142; the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit 111 is connected to the state monitoring and fault alarm system 147 through an optical fiber, and is used to realize the photoelectric conversion of the signal data of the ultra-high temperature and high pressure accumulator group sensor group 141 and the signal data of the ultra-high temperature and high pressure pump group sensor group 142;

[0086] The ultra-high temperature and high pressure pilot gas source system 112 can be subdivided into: an ultra-high temperature and high pressure pilot gas source system execution unit and an ultra-high temperature and high pressure pilot gas source system fault diagnosis unit; the ultra-high temperature and high pressure pilot gas source system execution unit includes: an ultra-high temperature and high pressure first pilot pneumatic shear valve 113, an ultra-high temperature and high pressure second pilot pneumatic shear valve 114, an ultra-high temperature and high pressure first pilot pneumatic universal valve 115 and an ultra-high temperature and high pressure second pilot pneumatic universal valve 116; the ultra-high temperature and high pressure first pilot pneumatic shear valve 113 is connected to the gas source through an air source pipeline to control the opening and closing of the first solenoid valve 123 of the ultra-high temperature and high pressure shear manifold; the ultra-high temperature and high pressure second pilot pneumatic shear valve 114 ... Connected to the gas source, used to control the opening and closing of the second solenoid valve 124 of the ultra-high temperature and high pressure shear manifold; the ultra-high temperature and high pressure first pilot pneumatic universal valve 115 is connected to the gas source through the gas source pipeline, used to control the opening and closing of the first solenoid valve 125 of the ultra-high temperature and high pressure universal manifold; the ultra-high temperature and high pressure second pilot pneumatic universal valve 116 is connected to the gas source through the gas source pipeline, used to control the opening and closing of the second solenoid valve 126 of the ultra-high temperature and high pressure universal manifold; the ultra-high temperature and high pressure pilot gas source system fault diagnosis unit includes: an ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit 117, an ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-inference and diagnosis unit 118, an ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-inference and diagnosis unit 119, an ultra-high temperature and high pressure pilot gas source system fault diagnosis unit 111, an ultra-high temperature and high pressure pilot gas source system fault diagnosis unit 111, an ultra-high temperature and high pressure pilot gas source system fault diagnosis unit 119 ... A high-temperature and high-pressure pilot pneumatic universal valve group sensor group signal data processing unit 119, an ultra-high-temperature and high-pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit 120 and an ultra-high-temperature and high-pressure pilot gas source system photoelectric conversion unit 121; an ultra-high-temperature and high-pressure pilot pneumatic shear valve group sensor group signal data processing unit 117 is connected to the ultra-high-temperature and high-pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit 118 through a signal cable, and is used to analyze and process the signal data of the ultra-high-temperature and high-pressure pilot pneumatic shear valve group sensor group 143; the ultra-high-temperature and high-pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit 118 is connected to the ultra-high-temperature and high-pressure pilot gas source system photoelectric conversion unit 121 through a signal cable The ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group 143 is connected to each other for pre-reasoning and diagnosis of the signal data of the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group 143; the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit 119 is connected to the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit 120 through a signal cable, and is used to analyze and process the signal data of the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group 144; the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit 120 is connected to the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit 121 through a signal cable, and is used to pre-reason and diagnose the signal data of the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group 144;The photoelectric conversion unit 121 of the ultra-high temperature and high pressure pilot gas source system is connected to the state monitoring and fault alarm system 147 through an optical fiber, and is used to realize the photoelectric conversion of the signal data of the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group 143 and the signal data of the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group 144;

[0087] The ultra-high temperature and high pressure blowout preventer group 122 can be subdivided into: an ultra-high temperature and high pressure blowout preventer group execution unit and an ultra-high temperature and high pressure blowout preventer group fault diagnosis unit; the ultra-high temperature and high pressure blowout preventer group execution unit includes: an ultra-high temperature and high pressure shear manifold first solenoid valve 123, an ultra-high temperature and high pressure shear manifold second solenoid valve 124, an ultra-high temperature and high pressure universal manifold first solenoid valve 125, an ultra-high temperature and high pressure universal manifold second solenoid valve 126, an ultra-high temperature and high pressure gate blowout preventer 131 and an ultra-high temperature and high pressure annular blowout preventer 132; the ultra-high temperature and high pressure shear manifold first solenoid valve 123 is connected to the ultra-high temperature and high pressure pressure supply system 101 through an oil pipeline, and is used to open the ultra-high temperature and high pressure gate blowout preventer 131; the ultra-high temperature and high pressure The second solenoid valve 124 of the shear manifold is connected to the ultra-high temperature and high pressure pressure supply system 101 through an oil pipeline, and is used to close the ultra-high temperature and high pressure gate blowout preventer 131; the first solenoid valve 125 of the ultra-high temperature and high pressure universal manifold is connected to the ultra-high temperature and high pressure pressure supply system 101 through an oil pipeline, and is used to open the ultra-high temperature and high pressure annular blowout preventer 132; the second solenoid valve 126 of the ultra-high temperature and high pressure universal manifold is connected to the ultra-high temperature and high pressure pressure supply system 101 through an oil pipeline, and is used to close the ultra-high temperature and high pressure annular blowout preventer 132; the ultra-high temperature and high pressure gate blowout preventer 131 is connected to the first solenoid valve 123 of the ultra-high temperature and high pressure shear manifold and the second solenoid valve 124 of the ultra-high temperature and high pressure shear manifold through an oil pipeline. connected to shear the drill pipe; the ultra-high temperature and high pressure annular blowout preventer 132 is connected to the ultra-high temperature and high pressure universal manifold first solenoid valve 125 and the ultra-high temperature and high pressure universal manifold second solenoid valve 126 through the oil pipeline to close the wellhead; the ultra-high temperature and high pressure blowout preventer group fault diagnosis unit includes: ultra-high temperature and high pressure shear manifold sensor group signal data processing unit 127, ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit 128, ultra-high temperature and high pressure universal manifold sensor group signal data processing unit 129, ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit 130 and ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit 133; ultra-high temperature and high pressure shear manifold sensor group signal data processing unit The element 127 is connected to the ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit 128 through a signal cable, and is used to analyze and process the signal data of the ultra-high temperature and high pressure shear manifold sensor group 145; the ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit 128 is connected to the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit 133 through a signal cable, and is used to pre-reason and diagnose the signal data of the ultra-high temperature and high pressure shear manifold sensor group 145; the ultra-high temperature and high pressure universal manifold sensor group signal data processing unit 129 is connected to the ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit 130 through a signal cable, and is used to analyze and process the signal data of the ultra-high temperature and high pressure universal manifold sensor group 146;The ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit 130 is connected to the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit 133 through a signal cable, and is used for pre-reasoning and diagnosing the signal data of the ultra-high temperature and high pressure universal manifold sensor group 146; the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit 133 is connected to the status monitoring and fault alarm system 147 through an optical fiber, and is used for realizing the photoelectric conversion of the signal data of the ultra-high temperature and high pressure shear manifold sensor group 145 and the signal data of the ultra-high temperature and high pressure universal manifold sensor group 146;

[0088] The ultra-high temperature and high pressure power control system 134 includes: a direct current power supply 135, a main control panel 136, an analog input and output unit 137, an industrial Ethernet switch 138 and an Ethernet optical fiber conversion unit 139; the direct current power supply 135 is connected to the main control panel 136, the analog input and output unit 137, the industrial Ethernet switch 138, and the Ethernet optical fiber conversion unit 139 through a cable to supply power to the main control panel 136, the analog input and output unit 137, the industrial Ethernet switch 138, and the Ethernet optical fiber conversion unit 139; the main control panel 136 is fixed on the surface of the ultra-high temperature and high pressure power control system 134 to realize the power distribution of the ultra-high temperature and high pressure power control system 134; the analog input and output unit 137 is connected to the main control panel 136 through a cable to process the input and output of analog quantity; the industrial Ethernet switch 138 is connected to the analog input and output unit 137 through a cable to realize the transmission of analog quantity; the Ethernet optical fiber conversion unit 139 is connected to the industrial Ethernet switch 138 through a cable to perform photoelectric conversion of signals;

[0089] The ultra-high temperature and high pressure sensor signal data acquisition system 140 includes: an ultra-high temperature and high pressure accumulator group sensor group 141, an ultra-high temperature and high pressure pump group sensor group 142, an ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group 143, an ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group 144, an ultra-high temperature and high pressure shear manifold sensor group 145 and an ultra-high temperature and high pressure universal manifold sensor group 146; the ultra-high temperature and high pressure accumulator group sensor group 141 is connected to the ultra-high temperature and high pressure accumulator group sensor signal data processing unit 107 through a signal cable for acquisition. The state monitoring signals of the first ultra-high temperature and high pressure supply accumulator group 102, the second ultra-high temperature and high pressure supply accumulator group 103, and the third ultra-high temperature and high pressure supply accumulator group 104 are collected; the ultra-high temperature and high pressure pump group sensor group 142 is connected to the ultra-high temperature and high pressure pump group sensor signal data processing unit 109 through a signal cable, and is used to collect the state monitoring signals of the first ultra-high temperature and high pressure supply pump group 105 and the second ultra-high temperature and high pressure supply pump group 106; the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group 143 is connected to the ultra-high temperature and high pressure pilot pneumatic shear valve group through a signal cable The valve group sensor group signal data processing unit 117 is connected to the ultra-high temperature and high pressure first pilot pneumatic shear valve 113 and the ultra-high temperature and high pressure second pilot pneumatic shear valve 114 for collecting status monitoring signals; the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group 144 is connected to the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit 119 through a signal cable for collecting status monitoring signals of the ultra-high temperature and high pressure first pilot pneumatic universal valve 115 and the ultra-high temperature and high pressure second pilot pneumatic universal valve 116; the ultra-high temperature and high pressure shear manifold sensor The sensor group 145 is connected to the ultra-high temperature and high pressure shear manifold sensor group signal data processing unit 127 through a signal cable, and is used to collect the status monitoring signals of the first solenoid valve 123 of the ultra-high temperature and high pressure shear manifold and the second solenoid valve 124 of the ultra-high temperature and high pressure shear manifold; the ultra-high temperature and high pressure universal manifold sensor group 146 is connected to the ultra-high temperature and high pressure universal manifold sensor group signal data processing unit 129 through a signal cable, and is used to collect the status monitoring signals of the first solenoid valve 125 of the ultra-high temperature and high pressure universal manifold and the second solenoid valve 126 of the ultra-high temperature and high pressure universal manifold;

[0090] The state monitoring and fault alarm system 147 includes: an ultra-high temperature and high pressure fault display unit 148, an ultra-high temperature and high pressure sound and light alarm unit 149, an ultra-high temperature and high pressure fault reasoning and diagnosis unit 150, an ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit 151 and an ultra-high temperature and high pressure state monitoring unit 152; the ultra-high temperature and high pressure fault display unit 148 is connected to the ultra-high temperature and high pressure power control system 134 through a signal cable, and is used to display the fault conditions of the ultra-high temperature and high pressure pressure supply system 101, the ultra-high temperature and high pressure pilot gas source system 112, the ultra-high temperature and high pressure blowout preventer group 122 and the ultra-high temperature and high pressure power control system 134; the ultra-high temperature and high pressure sound and light alarm unit 149 is connected to the ultra-high temperature and high pressure fault display unit 148 through a signal cable, and is used to realize the ultra-high temperature and high pressure pressure supply system 101, the ultra-high temperature and high pressure pilot gas source system 112, the ultra-high temperature and high pressure blowout preventer group 122 and the ultra-high temperature and high pressure power control system 134. Fault alarms of the air source system 112, the ultra-high temperature and high pressure blowout preventer group 122 and the ultra-high temperature and high pressure power control system 134; the ultra-high temperature and high pressure fault reasoning and diagnosis unit 150 is connected to the ultra-high temperature and high pressure sound and light alarm unit 149 through a signal cable, and is used to process the data after fault pre-reasoning and diagnosis; the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit 151 is connected to the ultra-high temperature and high pressure fault reasoning and diagnosis unit 150 through a signal cable, and is used to realize the photoelectric conversion of the signal; the ultra-high temperature and high pressure state monitoring unit 152 is connected to the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit 151 through a signal cable, and is used to realize the state monitoring of the ultra-high temperature and high pressure pressure supply system 101, the ultra-high temperature and high pressure pilot air source system 112, the ultra-high temperature and high pressure blowout preventer group 122 and the ultra-high temperature and high pressure power control system 134.

Claims

1. An intelligent fault diagnosis method for an ultra-high temperature and high pressure blowout preventer group and control system, characterized in that it comprises three steps: data collection of sensor signals for an ultra-high temperature and high pressure blowout preventer group and control system, fault feature extraction of sensor signal data for an ultra-high temperature and high pressure blowout preventer group and control system, and establishment of a fault diagnosis reasoning model for an ultra-high temperature and high pressure blowout preventer group and control system; The specific steps of sensor signal data collection are: A01: According to the structure of the ultra-high temperature and high pressure blowout preventer group and control system, the system is divided into the electronic control system, the hydraulic control system and the mechanical system; according to the different types of sensors arranged on each subsystem, a multi-source information acquisition channel for the ultra-high temperature and high pressure blowout preventer group and control system is established:

1. Analyze the signal types of the electronic control subsystem, including power signals, digital signals, analog signals and optical fiber signals; 2. Analyze the signal types of the hydraulic control subsystem, including humidity signals, pressure signals, flow signals, temperature signals, etc.; 3. Analyze the signal types of mechanical subsystems, including pressure signals, displacement signals, flow signals, vibration signals, etc.; 4. Establish a multi-source information collection channel for ultra-high temperature and high pressure blowout preventer group and control system; A02: Based on the multi-source information acquisition channel and multi-source information fusion technology of the ultra-high temperature and high pressure blowout preventer group and control system, the multi-source information fusion of the ultra-high temperature and high pressure blowout preventer group and control system sensors is realized:

1. Fuse similar types of sensor signals for fault pre-diagnosis; 2. Isolation and processing of dissimilar sensor signals, applied to fault diagnosis reasoning model; The specific steps of fault feature extraction of sensor signal data are as follows: A11: Based on the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, a convolutional neural network model is constructed to determine the topological structure of the convolutional neural network model; four genetic operations, selection, replication, crossover and mutation, are used to optimize the hyperparameters of the convolutional neural network model; based on the historical data generated during the operation of the ultra-high temperature and high pressure blowout preventer group and control system, the convolutional neural network model is trained:

1. Build a convolutional neural network model and determine the topological structure of the convolutional neural network model; 2. Determine the hyperparameters of the convolutional neural network to be optimized, and predetermine the hyperparameter range of the convolutional neural network based on practical experience and experimental testing; 3. Construct a preliminary convolutional neural network framework and pre-set the initial parameters of RCGA, including generation T, population chromosome number M, crossover probability Pc, mutation rate Pm and random chromosome operator Pr; 4. The hyperparameters of the convolutional neural network are encoded into the chromosomes, and the initial hyperparameter population of the CNN is generated; each chromosome represents a convolutional neural network, which is trained and tested, and then the fitness of each convolutional neural network is calculated and evaluated; 5. Perform genetic operations on all chromosomes of the Nth generation, and the chromosomes with higher fitness and randomly generated new chromosomes are used to form the N+1th generation; exit the loop and obtain the optimized convolutional neural network hyperparameters; 6. Use the gradient descent method and back propagation method to train the convolutional neural network. The calculation formula of the gradient descent method is as follows: Where: θ is the current parameter vector, α is the learning rate, which controls the magnitude of each update, is the gradient of the objective function J(θ) with respect to the parameter θ; A12: Read the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system; use the normalization method to preprocess the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and the normalization method uses the maximum and minimum normalization; standardize the preprocessed multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system using the Z-score standardization method; then, use the kernel slow feature analysis method to expand the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and the expansion channel is 2; use the trained convolutional neural network model to extract the fault characteristics of the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and realize the pre-diagnosis of the ultra-high temperature and high pressure blowout preventer group and control system:

1. Use the maximum and minimum normalization method to preprocess the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system. The maximum and minimum normalization formula is: Where: x′ is the normalized value, min is the minimum value of all data points, and max is the maximum value of all data points; 2. The pre-processed ultra-high temperature and high pressure BOP group and control system multi-source information is standardized using the Z-score standardization method: Among them, x is the original data, μ is the mean of the original data, σ is the standard deviation of the original data, and z is the standardized data; 3. Use the nuclear slow feature analysis method to expand the multi-source information of the ultra-high temperature and high pressure blowout preventer group and control system, and the expansion channel is 2: The optimization goals are as follows: Among them, y j(t) represents the jth slow feature of the output vector, and 〈·〉 represents the average calculation operation, which can be defined as formula (5); The optimization goal of SFA can then be transformed into: Where A and B represent the matrix x(t) and the co-correlation coefficient of the matrix x(t) respectively; if the input sample is known, x(t) can be calculated as:

4. Use the trained convolutional neural network model to extract the multi-source information fault characteristics of the ultra-high temperature and high pressure blowout preventer group and control system, and realize the pre-diagnosis of the ultra-high temperature and high pressure blowout preventer group and control system; The specific steps of establishing the fault diagnosis reasoning model are as follows: A21: Construct a Bayesian network structure model of an ultra-high temperature and high pressure blowout preventer group and control system, including an additional information layer, a monitoring layer and a fault layer:

1. Experts construct Bayesian additional information nodes based on the system's operating conditions, such as humidity and ambient temperature, to form an additional information layer; 2. Based on the evidence of given observations from external information including vibration, maintenance and leakage, Bayesian monitoring nodes are constructed to form a monitoring layer; 3. According to the system fault type, set the Bayesian fault node to form a fault layer; As shown in Figure 2, the fault pre-diagnosis results are used as prior probabilities to input into the fault diagnosis layer, which consists of F1, F2, …F n , n fault nodes; the additional information layer is set according to the system operating conditions, and the additional information layer consists of A1, A2, ...A m , m additional information nodes; the evidence is input into the monitoring layer as the node state, and the monitoring layer consists of M1, M2, …M s , composed of s monitoring nodes; A22: Use the Noisy-OR model, Noisy-MAX model and conditional probability table to build a Bayesian network parameter model for the ultra-high temperature and high pressure BOP group and control system; 1. Fault nodes are divided into Boolean and non-Boolean nodes. Boolean nodes have two states, normal and abnormal, and non-Boolean nodes have three states, high, normal, and low.

2. Use the Noisy-OR model to generate the conditional probability table for all Boolean nodes: Among them, q i is the probability of each parent node, q i It can be expressed as: Among them, when X i is true when Y is false, and all other parents are false, y′ is the iteration variable in the accumulation process, y′≤Y; 3. Use the Noisy-MAX model to generate conditional probability tables for all Boolean nodes: Where X represents the parent node configuration of Y, X = x1, x2, ..., x n , and P(Y=0|X1=0,...,X n =0)=1; A23: Extract the pre-diagnosis results of the ultra-high temperature and high pressure blowout preventer group and control system, and use the Bayesian network model to infer the failure probability and failure location of each component: And build fault identification criteria rules to determine whether each component is in a fault state: 1) If the probability of the fault state in the fault layer is greater than 80%, the fault has occurred; 2) If the probability of the fault state in the fault layer is greater than 30% and less than 80%, the fault may have occurred; 3) If the probability of the fault state in the fault layer is less than 30%, the fault has not occurred; The ultra-high temperature and high pressure pressure supply system comprises: an ultra-high temperature and high pressure first pressure supply accumulator group, an ultra-high temperature and high pressure second pressure supply accumulator group, an ultra-high temperature and high pressure third pressure supply accumulator group, an ultra-high temperature and high pressure first pressure supply pump group, an ultra-high temperature and high pressure second pressure supply pump group, an ultra-high temperature and high pressure accumulator group sensor signal data processing unit, an ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit, an ultra-high temperature and high pressure pump group sensor signal data processing unit, an ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit and an ultra-high temperature and high pressure pressure supply system photoelectric conversion unit; the ultra-high temperature and high pressure first pressure supply accumulator group, the ultra-high temperature and high pressure second pressure supply accumulator group and the ultra-high temperature and high pressure third pressure supply accumulator group are connected through an oil pipeline; the ultra-high temperature and high pressure third pressure supply accumulator group is connected to the ultra-high temperature and high pressure first pressure supply pump group through an oil pipeline connected; the first ultra-high temperature and high pressure supply pump group and the second ultra-high temperature and high pressure supply pump group are connected through an oil pipeline; the ultra-high temperature and high pressure accumulator group sensor signal data processing unit is connected to the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure accumulator group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure pump group sensor signal data processing unit is connected to the ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure pump group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure pressure supply system photoelectric conversion unit is connected to the status monitoring and fault alarm system through an optical fiber; The ultra-high temperature and high pressure pilot gas source system comprises: an ultra-high temperature and high pressure first pilot pneumatic shear valve, an ultra-high temperature and high pressure second pilot pneumatic shear valve, an ultra-high temperature and high pressure first pilot pneumatic universal valve, an ultra-high temperature and high pressure second pilot pneumatic universal valve, an ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit, an ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit, an ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit, an ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit and an ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit; the ultra-high temperature and high pressure first pilot pneumatic shear valve is connected to the gas source through a gas source pipeline; the ultra-high temperature and high pressure second pilot pneumatic shear valve is connected to the gas source through a gas source pipeline; the ultra-high temperature and high pressure first pilot pneumatic universal valve is connected to the gas source through a gas source pipeline; the ultra-high temperature and high pressure The second pilot pneumatic universal valve is connected to the gas source through the gas source pipeline; the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit is connected to the ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure pilot pneumatic shear valve group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit is connected to the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit through a signal cable; the ultra-high temperature and high pressure pilot gas source system photoelectric conversion unit is connected to the status monitoring and fault alarm system through optical fiber; The ultra-high temperature and high pressure blowout preventer group includes: an ultra-high temperature and high pressure shear manifold first solenoid valve, an ultra-high temperature and high pressure shear manifold second solenoid valve, an ultra-high temperature and high pressure universal manifold first solenoid valve, an ultra-high temperature and high pressure universal manifold second solenoid valve, an ultra-high temperature and high pressure gate blowout preventer, an ultra-high temperature and high pressure annular blowout preventer, an ultra-high temperature and high pressure shear manifold sensor group signal data processing unit, an ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit, an ultra-high temperature and high pressure universal manifold sensor group signal data processing unit, an ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit and an ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit; the ultra-high temperature and high pressure shear manifold first solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline; the ultra-high temperature and high pressure shear manifold second solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline; the ultra-high temperature and high pressure universal manifold first solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline; the ultra-high temperature and high pressure universal manifold second solenoid valve is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline With the ultra-high temperature and high pressure pressure supply system; the ultra-high temperature and high pressure gate blowout preventer is connected to the first solenoid valve of the ultra-high temperature and high pressure shear manifold through the oil pipeline; the ultra-high temperature and high pressure annular blowout preventer is connected to the first solenoid valve of the ultra-high temperature and high pressure universal manifold and the second solenoid valve of the ultra-high temperature and high pressure universal manifold through the oil pipeline; the signal data processing unit of the ultra-high temperature and high pressure shear manifold sensor group is connected to the ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit through the signal cable; the ultra-high temperature and high pressure shear manifold fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit through the signal cable; the signal data processing unit of the ultra-high temperature and high pressure universal manifold sensor group is connected to the ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit through the signal cable; the ultra-high temperature and high pressure universal manifold fault pre-reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit through the signal cable; the ultra-high temperature and high pressure blowout preventer group photoelectric conversion unit is connected to the status monitoring and fault alarm system through the optical fiber; The ultra-high temperature and high voltage power control system comprises: a direct current power supply, a main control panel, an analog input and output unit, an industrial Ethernet switch and an Ethernet optical fiber conversion unit; the direct current power supply is connected to the main control panel, the analog input and output unit, the industrial Ethernet switch and the Ethernet optical fiber conversion unit through a cable; the analog input and output unit is connected to the main control panel through a cable; the industrial Ethernet switch is connected to the analog input and output unit through a cable; the Ethernet optical fiber conversion unit is connected to the industrial Ethernet switch through a cable; The ultra-high temperature and high pressure sensor signal data acquisition system comprises: an ultra-high temperature and high pressure accumulator group sensor group, an ultra-high temperature and high pressure pump group sensor group, an ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group, an ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group, an ultra-high temperature and high pressure shear manifold sensor group and an ultra-high temperature and high pressure universal manifold sensor group; an ultra-high temperature and high pressure accumulator group sensor group is connected to an ultra-high temperature and high pressure accumulator group sensor signal data processing unit through a signal cable; an ultra-high temperature and high pressure pump group sensor group is connected to an ultra-high temperature and high pressure pump group sensor signal data processing unit through a signal cable; ultra-high temperature and high pressure pump group sensor group is connected to an ultra-high temperature and high pressure pump group sensor signal data processing unit through a signal cable; ultra The high-temperature and high-pressure pilot pneumatic shear valve group sensor group is connected to the ultra-high-temperature and high-pressure pilot pneumatic shear valve group sensor group signal data processing unit through a signal cable; the ultra-high-temperature and high-pressure pilot pneumatic universal valve group sensor group is connected to the ultra-high-temperature and high-pressure pilot pneumatic universal valve group sensor group signal data processing unit through a signal cable; the ultra-high-temperature and high-pressure shear manifold sensor group is connected to the ultra-high-temperature and high-pressure shear manifold sensor group signal data processing unit through a signal cable; the ultra-high-temperature and high-pressure universal manifold sensor group is connected to the ultra-high-temperature and high-pressure universal manifold sensor group signal data processing unit through a signal cable; The state monitoring and fault alarm system includes: an ultra-high temperature and high pressure fault display unit, an ultra-high temperature and high pressure sound and light alarm unit, an ultra-high temperature and high pressure fault reasoning and diagnosis unit, an ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit and an ultra-high temperature and high pressure state monitoring unit; the ultra-high temperature and high pressure fault display unit is connected to the ultra-high temperature and high pressure power control system through a signal cable; the ultra-high temperature and high pressure sound and light alarm unit is connected to the ultra-high temperature and high pressure fault display unit through a signal cable; the ultra-high temperature and high pressure fault reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure sound and light alarm unit through a signal cable; the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit is connected to the ultra-high temperature and high pressure fault reasoning and diagnosis unit through a signal cable; the ultra-high temperature and high pressure state monitoring unit is connected to the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit through a signal cable.

2. The ultra-high temperature and high pressure blowout preventer group, control system and intelligent fault diagnosis method according to claim 1, characterized in that: The ultra-high temperature and high pressure first pressure supply accumulator group, the ultra-high temperature and high pressure second pressure supply accumulator group and the ultra-high temperature and high pressure third pressure supply accumulator group are connected by an oil pipeline to ensure the pressure supply of the ultra-high temperature and high pressure blowout preventer group and the control system; the ultra-high temperature and high pressure third pressure supply accumulator group is connected to the ultra-high temperature and high pressure first pressure supply pump group through an oil pipeline; the ultra-high temperature and high pressure first pressure supply pump group and the ultra-high temperature and high pressure second pressure supply pump group are connected by an oil pipeline and start working when the system pressure decreases; the ultra-high temperature and high pressure accumulator group sensor signal data processing unit is connected to the ultra-high temperature and high pressure accumulator group fault pre-inference and diagnosis unit through a signal cable, which is used to analyze and process the signal data of the ultra-high temperature and high pressure accumulator group sensor group; the ultra-high temperature and high pressure accumulator group fault pre-inference and diagnosis unit is connected to the ultra-high temperature and high pressure The pressure supply system is connected to the photoelectric conversion unit, which is used for pre-inference and diagnosis of signal data of the ultra-high temperature and high pressure accumulator group sensor group; the ultra-high temperature and high pressure pump group sensor signal data processing unit is connected to the ultra-high temperature and high pressure pump group fault pre-inference and diagnosis unit through a signal cable, which is used to analyze and process the signal data of the ultra-high temperature and high pressure pump group sensor group; the ultra-high temperature and high pressure pump group fault pre-inference and diagnosis unit is connected to the photoelectric conversion unit of the ultra-high temperature and high pressure pressure supply system through a signal cable, which is used for pre-inference and diagnosis of signal data of the ultra-high temperature and high pressure pump group sensor group; the photoelectric conversion unit of the ultra-high temperature and high pressure pressure supply system is connected to the status monitoring and fault alarm system through optical fiber, which is used to realize the photoelectric conversion of the signal data of the ultra-high temperature and high pressure accumulator group sensor group and the signal data of the ultra-high temperature and high pressure pump group sensor group.

3. The ultra-high temperature and high pressure blowout preventer group, control system and intelligent fault diagnosis method according to claim 1, characterized in that: The first ultra-high temperature and high pressure pilot pneumatic shear valve is connected to the gas source through the gas source pipeline, which is used to control the opening and closing of the first solenoid valve of the ultra-high temperature and high pressure shear manifold; the second ultra-high temperature and high pressure pilot pneumatic shear valve is connected to the gas source through the gas source pipeline, which is used to control the opening and closing of the second solenoid valve of the ultra-high temperature and high pressure shear manifold; the first ultra-high temperature and high pressure pilot pneumatic universal valve is connected to the gas source through the gas source pipeline, which is used to control the opening and closing of the first solenoid valve of the ultra-high temperature and high pressure universal manifold; the second ultra-high temperature and high pressure pilot pneumatic universal valve is connected to the gas source through the gas source pipeline, which is used to control the opening and closing of the second solenoid valve of the ultra-high temperature and high pressure universal manifold; the signal data processing unit of the sensor group of the ultra-high temperature and high pressure pilot pneumatic shear valve group is connected to the fault pre-inference and diagnosis unit of the ultra-high temperature and high pressure pilot pneumatic shear valve group through a signal cable, which is used to analyze and process the signal data of the sensor group of the ultra-high temperature and high pressure pilot pneumatic shear valve group; the fault pre-inference and diagnosis unit of the ultra-high temperature and high pressure pilot pneumatic shear valve group is connected to the gas source through the signal cable. The signal cable is connected to the photoelectric conversion unit of the ultra-high temperature and high pressure pilot air source system, and is used for pre-inference and diagnosis of the signal data of the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group; the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit is connected to the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-inference and diagnosis unit through the signal cable, and is used to analyze and process the signal data of the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group; the ultra-high temperature and high pressure pilot pneumatic universal valve group fault pre-inference and diagnosis unit is connected to the photoelectric conversion unit of the ultra-high temperature and high pressure pilot air source system through the signal cable, and is used for pre-inference and diagnosis of the signal data of the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group; the photoelectric conversion unit of the ultra-high temperature and high pressure pilot air source system is connected to the status monitoring and fault alarm system through optical fiber, and is used to realize the photoelectric conversion of the signal data of the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group and the signal data of the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group.

4. The ultra-high temperature and high pressure blowout preventer group, control system and intelligent fault diagnosis method according to claim 1, characterized in that: The first solenoid valve of the ultra-high temperature and high pressure shear manifold is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline to open the ultra-high temperature and high pressure gate blowout preventer; the second solenoid valve of the ultra-high temperature and high pressure shear manifold is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline to close the ultra-high temperature and high pressure gate blowout preventer; the first solenoid valve of the ultra-high temperature and high pressure universal manifold is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline to open the ultra-high temperature and high pressure annular blowout preventer; the second solenoid valve of the ultra-high temperature and high pressure universal manifold is connected to the ultra-high temperature and high pressure pressure supply system through an oil pipeline to close the ultra-high temperature and high pressure annular blowout preventer; the ultra-high temperature and high pressure gate blowout preventer is connected to the first solenoid valve of the ultra-high temperature and high pressure shear manifold and the second solenoid valve of the ultra-high temperature and high pressure shear manifold through an oil pipeline to shear the drill pipe; the ultra-high temperature and high pressure annular blowout preventer is connected to the first solenoid valve of the ultra-high temperature and high pressure universal manifold and the second solenoid valve of the ultra-high temperature and high pressure universal manifold through an oil pipeline to close the wellhead; the signal data processing unit of the ultra-high temperature and high pressure shear manifold sensor group is connected to the ultra-high temperature and high pressure shear manifold through a signal cable. The high-temperature and high-pressure shear manifold fault pre-reasoning and diagnosis unit is connected to analyze and process the signal data of the ultra-high-temperature and high-pressure shear manifold sensor group; the ultra-high-temperature and high-pressure shear manifold fault pre-reasoning and diagnosis unit is connected to the ultra-high-temperature and high-pressure blowout preventer group photoelectric conversion unit through a signal cable, which is used to pre-reason and diagnose the signal data of the ultra-high-temperature and high-pressure shear manifold sensor group; the ultra-high-temperature and high-pressure universal manifold sensor group signal data processing unit is connected to the ultra-high-temperature and high-pressure universal manifold fault pre-reasoning and diagnosis unit through a signal cable, which is used to analyze and process the signal data of the ultra-high-temperature and high-pressure universal manifold sensor group; the ultra-high-temperature and high-pressure universal manifold fault pre-reasoning and diagnosis unit is connected to the ultra-high-temperature and high-pressure blowout preventer group photoelectric conversion unit through a signal cable, which is used to pre-reason and diagnose the signal data of the ultra-high-temperature and high-pressure universal manifold sensor group; the ultra-high-temperature and high-pressure blowout preventer group photoelectric conversion unit is connected to the status monitoring and fault alarm system through optical fiber, which is used to realize the photoelectric conversion of the signal data of the ultra-high-temperature and high-pressure shear manifold sensor group and the signal data of the ultra-high-temperature and high-pressure universal manifold sensor group.

5. The ultra-high temperature and high pressure blowout preventer group, control system and intelligent fault diagnosis method according to claim 1, characterized in that: The DC power supply is connected to the main control panel, the analog input and output unit, the industrial Ethernet switch and the Ethernet optical fiber conversion unit through cables to supply power to the main control panel, the analog input and output unit, the industrial Ethernet switch and the Ethernet optical fiber conversion unit; the main control panel is fixed on the surface of the ultra-high temperature and high pressure power control system to realize the power distribution of the ultra-high temperature and high pressure power control system; the analog input and output unit is connected to the main control panel through cables to process the input and output of analog quantities; the industrial Ethernet switch is connected to the analog input and output unit through cables to realize the transmission of analog quantities; the Ethernet optical fiber conversion unit is connected to the industrial Ethernet switch through cables to perform photoelectric conversion of signals.

6. The ultra-high temperature and high pressure blowout preventer group, control system and intelligent fault diagnosis method according to claim 1, characterized in that: The ultra-high temperature and high pressure accumulator group sensor group is connected to the ultra-high temperature and high pressure accumulator group sensor signal data processing unit through a signal cable, and is used to collect status monitoring signals of the ultra-high temperature and high pressure first pressure supply accumulator group, the ultra-high temperature and high pressure second pressure supply accumulator group, and the ultra-high temperature and high pressure third pressure supply accumulator group; the ultra-high temperature and high pressure pump group sensor group is connected to the ultra-high temperature and high pressure pump group sensor signal data processing unit through a signal cable, and is used to collect status monitoring signals of the ultra-high temperature and high pressure first pressure supply pump group and the ultra-high temperature and high pressure second pressure supply pump group; the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group is connected to the ultra-high temperature and high pressure pilot pneumatic shear valve group sensor group signal data processing unit through a signal cable, and is used to collect status monitoring signals of the ultra-high temperature and high pressure first pilot pneumatic shear valve and the ultra-high temperature and high pressure second pilot pneumatic shear valve ; The ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group is connected to the ultra-high temperature and high pressure pilot pneumatic universal valve group sensor group signal data processing unit through a signal cable, and is used to collect the status monitoring signals of the ultra-high temperature and high pressure first pilot pneumatic universal valve and the ultra-high temperature and high pressure second pilot pneumatic universal valve; the ultra-high temperature and high pressure shear manifold sensor group is connected to the ultra-high temperature and high pressure shear manifold sensor group signal data processing unit through a signal cable, and is used to collect the status monitoring signals of the ultra-high temperature and high pressure shear manifold first solenoid valve and the ultra-high temperature and high pressure shear manifold second solenoid valve; the ultra-high temperature and high pressure universal manifold sensor group is connected to the ultra-high temperature and high pressure universal manifold sensor group signal data processing unit through a signal cable, and is used to collect the status monitoring signals of the ultra-high temperature and high pressure universal manifold first solenoid valve and the ultra-high temperature and high pressure universal manifold second solenoid valve.

7. The ultra-high temperature and high pressure blowout preventer group, control system and intelligent fault diagnosis method according to claim 1, characterized in that: The ultra-high temperature and high pressure fault display unit is connected to the ultra-high temperature and high pressure power control system through a signal cable, and is used to display the fault conditions of the ultra-high temperature and high pressure pressure supply system, the ultra-high temperature and high pressure pilot gas source system, the ultra-high temperature and high pressure blowout preventer group and the ultra-high temperature and high pressure power control system; the ultra-high temperature and high pressure sound and light alarm unit is connected to the ultra-high temperature and high pressure fault display unit through a signal cable, and is used to realize the fault alarm of the ultra-high temperature and high pressure pressure supply system, the ultra-high temperature and high pressure pilot gas source system, the ultra-high temperature and high pressure blowout preventer group and the ultra-high temperature and high pressure power control system; the ultra-high temperature and high pressure fault reasoning and diagnosis unit is connected to the ultra-high temperature and high pressure sound and light alarm unit through a signal cable, and is used to process the data after fault pre-reasoning and diagnosis; the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit is connected to the ultra-high temperature and high pressure fault reasoning and diagnosis unit through a signal cable, and is used to realize the photoelectric conversion of the signal; the ultra-high temperature and high pressure state monitoring unit is connected to the ultra-high temperature and high pressure electro-hydraulic composite module photoelectric conversion unit through a signal cable, and is used to realize the state monitoring of the ultra-high temperature and high pressure pressure supply system, the ultra-high temperature and high pressure pilot gas source system, the ultra-high temperature and high pressure blowout preventer group and the ultra-high temperature and high pressure power control system.

Images