A deepwater blowout accident emergency drill evaluation method and system based on virtual reality

Abstract

The present invention discloses a deepwater blowout accident emergency drill assessment method and system based on virtual reality, which relates to the field of marine deepwater drilling simulation technology. The method comprises: three-dimensional modeling of a deepwater blowout accident scene in a virtual reality environment; building a virtual scene based on the established three-dimensional model of a deepwater blowout accident; after building the virtual scene, judging the result according to the simulation operation, collecting and exporting the operation information; qualitatively and quantitatively evaluating the simulation operation level and conducting a deepwater blowout accident risk assessment. The present invention can conduct emergency drills for deepwater blowout accidents, and the collection of data is conducive to the qualitative and quantitative evaluation of the operation level and the risk assessment of deepwater blowout accidents.

Description

Technical Field

[0001] The present invention relates to the technical field of deepwater marine drilling simulation, and more particularly to a method and system for evaluating emergency drills for deepwater blowout accidents based on virtual reality. Background Art

[0002] Blowouts are one of the most serious accidents in deepwater oil and gas exploration and development, which can easily cause heavy casualties and property losses. Traditional offshore drilling safety training is mostly conducted in written and on-site teaching, which makes it difficult to conduct actual drills. Virtual reality technology (VR) can simulate real accident scenes and has a strong sense of immersion, and is widely used in the field of safety training.

[0003] Most existing VR-based safety training systems can only conduct simple emergency drills and cannot collect detailed operation data. Operation level assessment is often simply based on the success or failure of the final result, or manual observation of the operation process, lacking quantitative assessment and making it difficult to carry out targeted training. At the same time, data-driven deepwater blowout accident risk assessment is difficult to carry out due to the difficulty in obtaining data.

[0004] Therefore, how to provide a deepwater blowout accident emergency drill assessment method and system based on virtual reality is a problem that technical personnel in this field urgently need to solve. Summary of the invention

[0005] In view of this, the present invention provides a deepwater blowout accident emergency drill assessment method and system based on virtual reality, which can conduct emergency drills for deepwater blowout accidents. The data collection and processing are conducive to the qualitative and quantitative assessment of the operation level and the risk assessment of deepwater blowout accidents.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A deepwater blowout accident emergency drill evaluation method based on virtual reality, comprising:

[0008] 3D modeling of deepwater blowout accident scenarios in a virtual reality environment;

[0009] Construct a virtual scene based on the established 3D model of deepwater blowout accident scene;

[0010] After building the virtual scene, the results are judged based on the simulated operation, and the operation information is collected and exported;

[0011] Based on the operation information, the simulated operation level is qualitatively and quantitatively evaluated and a deepwater blowout accident risk assessment is carried out.

[0012] Preferably, three-dimensional modeling is performed on the deepwater blowout accident scene, including blowout accident scene modeling, modeling of the correct operation process of installing the oil collecting cover, and modeling of the offshore operating platform.

[0013] Preferably, constructing a virtual scene based on the established three-dimensional model of the deepwater blowout accident scene specifically includes:

[0014] Rendering of blowout accident scenes, the correct operation process of installing oil collection covers, and offshore operating platforms;

[0015] Added operation tips for installing the oil collecting cover;

[0016] Corresponding collision spaces are set for the lowering operation, installation docking operation, and cutting operation of the oil collecting hood.

[0017] Preferably, adding operation prompts for installing the oil collecting cover includes:

[0018] Prompt the operator on the basic operation methods of the VR device when starting to use the device;

[0019] Prompt the operation steps when starting the deepwater blowout emergency drill, and set a confirmation button after each successful operation;

[0020] Prompt whether to exit or continue when the operation fails.

[0021] Preferably, the corresponding collision space is set for the lowering operation, the docking operation, and the cutting operation of the oil collecting cover, including:

[0022] For the lowering operation: set the pull-down angle of the joystick of the virtual operator to the corresponding lowering acceleration, and set the acceleration time threshold T to limit the lowering speed. Use the Unity3D collider component Collider to set a collision space with a volume of R1 at the bottom of the lowered object.

[0023] For the installation docking operation: Use the Unity3D collider component Collider to add collision spaces of volumes V1 and V2 to the docking ends of the two objects to be docked;

[0024] For cutting operations: Use the Unity3D collider component Collider to add collision spaces with volumes of V3 and V4 at the cutting position of the object to be cut and on the system's cutter.

[0025] Preferably, the collected operation information includes step name, step order, operation time, success or failure, and error cause;

[0026] The judgment of success and error causes includes:

[0027] For the lowering operation: before the collision space R1 and the lowering end position achieve physical interaction, if the acceleration time does not exceed the time threshold T, the lowering operation is judged to be successful. If it exceeds, the lowering operation is judged to have failed, and the error cause is recorded at the same time: the lowering speed is too fast.

[0028] For the installation and docking operation: when the collision volumes V1 and V2 achieve physical interaction, the installation operation is judged to be successful, otherwise the installation operation is judged to be failed, and the error cause is recorded at the same time: wrong installation position;

[0029] For the cutting operation: when the collision spaces V3 and V4 achieve physical interaction, the cutting operation is judged to be successful. When the collision spaces V3 and V4 do not achieve interaction, the system judges that the cutting operation has failed and records the cause of the error: wrong cutting position or wrong operation object.

[0030] Preferably, the method further includes processing whether the operation is successful and outputting the operation result in digital form, wherein 0 represents success, 1 represents failure, and 9 represents failure of the previous step and the step is not performed.

[0031] A deepwater blowout accident emergency drill evaluation system based on virtual reality, including:

[0032] 3D modeling module: used to perform 3D modeling of deepwater blowout accident scenes in a virtual reality environment;

[0033] Virtual scene construction module: construct virtual scenes based on the established 3D model of deepwater blowout accident scenes;

[0034] Data acquisition and processing module: used to judge the results according to the simulation operation after building the virtual scene, and to collect and export the operation information;

[0035] Evaluation module: used to conduct qualitative and quantitative evaluation of simulated operation levels based on operation information and to carry out risk assessment of deepwater blowout accidents.

[0036] It can be seen from the above technical solutions that, compared with the prior art, the present invention discloses a method and system for evaluating emergency drills for deepwater blowout accidents based on virtual reality, which has the following advantages:

[0037] 1) Existing VR systems focus on safety training, but it is difficult to quantitatively evaluate the level of emergency operations. This invention can qualitatively evaluate the level of operation and quantitatively calculate the success rate of operation by identifying the important information of the operator during the operation and judging the operation results. At the same time, it reads and processes the operation data, so as to facilitate subsequent targeted improvements.

[0038] 2) Existing deepwater blowout accident risk assessment methods mostly use expert knowledge, which is difficult to quantitatively assess. Due to the lack of data, it is difficult to carry out data-driven risk assessment methods. The present invention uses the data generated by the VR system to carry out subsequent data-driven deepwater blowout accident risk assessment to prevent and control accident risks. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0040] Figure 1 A flow chart of a deepwater blowout accident emergency drill assessment method based on virtual reality provided by the present invention.

[0041] Figure 2 A schematic diagram of a deepwater blowout accident emergency drill evaluation system based on virtual reality provided by the present invention. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0043] The embodiment of the present invention discloses a deepwater blowout accident emergency drill evaluation method based on virtual reality, such as Figure 1 As shown, including:

[0044] Use 3DMax to conduct 3D modeling of deepwater blowout accident scenes in a virtual reality environment, including modeling of blowout accident scenes, modeling of the correct operation process of installing oil collection covers, and modeling of offshore operating platforms;

[0045] Construct a virtual scene based on the established 3D model of deepwater blowout accident scene;

[0046] After building the virtual scene, the results are judged based on the simulated operation, and the operation information is collected and exported;

[0047] Based on the operation information, the simulated operation level is qualitatively and quantitatively evaluated and a deepwater blowout accident risk assessment is carried out.

[0048] In this embodiment, a virtual scene is constructed based on the established three-dimensional model of the deepwater blowout accident scene, specifically including:

[0049] Use Unity3D to render the blowout accident scene, the correct operation process of installing the oil collection cover, and the offshore operating platform;

[0050] Use the UI interface in Unity3D to add operation prompts for installing the oil collection cover, including: a basic operation prompt module, which is used to prompt the operator of the basic operation method of the VR device when starting to use the device; an emergency operation prompt module, which is used to prompt the operator of the operation steps when starting the deepwater blowout accident emergency drill, and set a "confirm" button after each successful operation; an operation failure prompt module, which is used to prompt the operator whether to exit or continue when the operation fails;

[0051] For the lowering operation, docking operation, and cutting operation of the oil collecting cover, the corresponding collision space is set, including:

[0052] For the lowering operation: set the pull-down angle of the joystick of the virtual operator to the corresponding lowering acceleration, and set the acceleration time threshold T to limit the lowering speed. Set a collision space with a volume of R1 at the bottom of the lowered object through the Unity3D collider component Collider; the lowered object refers to the cutter, watertight pipe, oil collecting cover, drill pipe, etc.

[0053] For the installation docking operation: use the Unity3D collider component Collider to add collision spaces of volumes V1 and V2 to the docking ends of the two objects to be docked; the two docked objects refer to the oil collecting hood and the drilling wellhead;

[0054] For cutting operations: Use the Unity3D collider component Collider to add collision spaces with volumes of V3 and V4 at the cutting position of the object to be cut and on the system's cutter.

[0055] It should be noted that when a blowout accident occurs, installing an oil collection cover can mitigate the consequences of the accident. The steps for installing the oil collection cover include: 1. lowering the oil collection cover, 2. lowering the watertight pipe and LMRP (Lower marine riser package), 3. lowering the drill pipe and connecting the oil collection cover, 4. lowering the cutter, 5. cutting the leaking oil pipeline, 6. installing the oil collection cover, and 7. tightening the watertight pipe, drill pipe, and oil collection cover.

[0056] With reference to the above steps, the present invention is generally divided into three important steps: lowering operation, installation docking operation, and cutting operation. Therefore, it is necessary to set corresponding collision spaces for the lowering operation, installation docking operation, and cutting operation of the oil collecting hood, and then judge the operation results.

[0057] In this embodiment, when each step of the operation is completed, simulated operation data including step name, step order, and operation time are collected, and the data are judged including whether it is successful and the cause of the error, and the step name, step order, operation time, whether it is successful and the cause of the error are exported. As shown in Table 1, the data collected for the oil collection hood simulation are as follows:

[0058] Table 1

[0059]

[0060] The judgment of success and error causes specifically includes:

[0061] For the lowering operation: before the collision space R1 and the lowering end position achieve physical interaction, if the acceleration time does not exceed the time threshold T, the lowering operation is judged to be successful. If it exceeds, the lowering operation is judged to have failed, and the error cause is recorded at the same time: the lowering speed is too fast.

[0062] For the installation and docking operation: when the collision volumes V1 and V2 achieve physical interaction, the installation operation is judged to be successful, otherwise the installation operation is judged to be failed, and the error cause is recorded at the same time: wrong installation position;

[0063] For the cutting operation: when the collision spaces V3 and V4 achieve physical interaction, the cutting operation is judged to be successful. When the collision spaces V3 and V4 do not achieve interaction, the system judges that the cutting operation has failed and records the cause of the error: wrong cutting position or wrong operation object.

[0064] The present invention accurately simulates deepwater blowout accident scenarios and provides operators with an immersive accident emergency handling environment. Operators are familiar with the emergency handling process of blowout accidents through detailed operation instructions. The system provides prompts and feedback when operating errors occur, improving training efficiency. In addition, the collected data records the results of each step of the operator, the cause of failure, and other information, which helps to improve emergency operations in a targeted manner.

[0065] When each round of operation is completed, the operation results of each step in the round will be collected, and further processed to see if it is successful, and the operation results will be output, where 0 represents success, 1 represents failure, and 9 represents failure of the previous step and the step is not operated. The data after processing Table 1 is shown in Table 2:

[0066] Table 2

[0067]

[0068] Export and store data: The data in Table 1 and Table 2 will be exported to the computer device connected to the output end through the system program code and stored in the form of a table file.

[0069] The operation data collected by the present invention is stored in the output terminal device, and the collected data can be used for subsequent data-driven deepwater blowout accident risk assessment. Traditional accident risk assessment usually relies on the experience of experts, but the data-driven assessment method is difficult to obtain accurate results due to the difficulty in data acquisition. The present invention helps to solve the problem of data shortage through data collection and processing of VR system, which can be used for accident risk assessment and ensure the safety of emergency operations.

[0070] In this embodiment, the simulated operation level is qualitatively and quantitatively evaluated and the risk assessment of deepwater blowout accidents is carried out, including:

[0071] According to the exported Table 1, users can know the operation results and error causes so as to make targeted improvements and conduct qualitative evaluation of the simulation operation level.

[0072] According to the derived Table 2, the operation success rate can be calculated, which is convenient for quantitatively judging the operation level of different users and quantitatively evaluating the simulation operation level; at the same time, it helps to solve the problem of lack of data in the data-driven deepwater blowout accident risk assessment method.

[0073] The present invention can qualitatively and quantitatively evaluate the operation level of the operator. According to the failure steps and causes, targeted operation improvements can be carried out. According to the result data table, the operation level can be quantitatively evaluated, and at the same time, the risk assessment of deepwater blowout accidents can be performed as data.

[0074] This embodiment provides a deepwater blowout accident emergency drill evaluation system based on virtual reality. Figure 2 As shown, including:

[0075] 3D modeling module: used to perform 3D modeling of deepwater blowout accident scenes in a virtual reality environment, including blowout accident scene modeling, modeling of the correct operation process of installing oil collection covers, and modeling of offshore operating platforms;

[0076] Virtual scene construction module: construct virtual scenes based on the established 3D model of deepwater blowout accident scenes;

[0077] Data acquisition and processing module: used to judge the results according to the simulation operation after building the virtual scene, and to collect and export the operation information;

[0078] Evaluation module: used to conduct qualitative and quantitative evaluation of simulated operation levels based on operation information and to carry out risk assessment of deepwater blowout accidents.

[0079] In this embodiment, the specific implementation process of the virtual scene construction module is as follows:

[0080] Use Unity3D to render the blowout accident scene, the correct operation process of installing the oil collection cover, and the offshore operating platform;

[0081] Use the UI interface in Unity3D to add operation prompts for installing the oil collection cover, including: a basic operation prompt module, which is used to prompt the operator of the basic operation method of the VR device when starting to use the device; an emergency operation prompt module, which is used to prompt the operator of the operation steps when starting the deepwater blowout accident emergency drill, and set a "confirm" button after each successful operation; an operation failure prompt module, which is used to prompt the operator whether to exit or continue when the operation fails;

[0082] For the lowering operation, docking operation, and cutting operation of the oil collecting cover, the corresponding collision space is set, including:

[0083] For the lowering operation: set the pull-down angle of the joystick of the virtual operator to the corresponding lowering acceleration, and set the acceleration time threshold T to limit the lowering speed. Set a collision space with a volume of R1 at the bottom of the lowered object through the Unity3D collider component Collider; the lowered object refers to the cutter, watertight pipe, oil collecting cover, drill pipe, etc.

[0084] For the installation docking operation: use the Unity3D collider component Collider to add collision spaces of volumes V1 and V2 to the docking ends of the two objects to be docked; the two docked objects refer to the oil collecting hood and the drilling wellhead;

[0085] For cutting operations: Use the Unity3D collider component Collider to add collision spaces with volumes of V3 and V4 at the cutting position of the object to be cut and on the system's cutter.

[0086] It should be noted that when a blowout accident occurs, installing an oil collection cover can mitigate the consequences of the accident. The steps for installing the oil collection cover include: 1. lowering the oil collection cover, 2. lowering the water-proof pipe and LMRP, 3. lowering the drill pipe and connecting the oil collection cover, 4. lowering the cutter, 5. cutting the leaking oil pipeline, 6. installing the oil collection cover, and 7. tightening the water-proof pipe, drill pipe, and oil collection cover.

[0087] With reference to the above steps, the present invention is generally divided into three important steps: lowering operation, installation docking operation, and cutting operation. Therefore, it is necessary to set corresponding collision spaces for the lowering operation, installation docking operation, and cutting operation of the oil collecting hood, and then judge the operation results.

[0088] In this embodiment, the specific implementation process of the data acquisition and processing module is as follows:

[0089] When each operation is completed, collect simulation operation data, including step name, step order, and operation time. Judge the data, including whether it is successful and the cause of the error, and export the step name, step order, operation time, whether it is successful and the cause of the error;

[0090] The judgment of success and error causes specifically includes:

[0091] For the lowering operation: before the collision space R1 realizes physical interaction with the virtual seabed, if the acceleration time does not exceed the time threshold T, the lowering operation is judged to be successful. If it exceeds, the lowering operation is judged to have failed, and the error cause is recorded at the same time: the lowering speed is too fast.

[0092] For the installation and docking operation: when the collision volumes V1 and V2 achieve physical interaction, the installation operation is judged to be successful, otherwise the installation operation is judged to be failed, and the error cause is recorded at the same time: wrong installation position;

[0093] For the cutting operation: when the collision spaces V3 and V4 achieve physical interaction, the cutting operation is judged to be successful. When the collision spaces V3 and V4 do not achieve interaction, the system judges that the cutting operation has failed and records the cause of the error: wrong cutting position or wrong operation object.

[0094] The present invention accurately simulates deepwater blowout accident scenarios and provides an immersive accident emergency handling environment for operators. Through detailed operation instructions, operators are familiar with the emergency handling process of blowout accidents. The system provides prompts and feedback when operating errors occur, improving training efficiency. In addition, the collected data records the results of each step of the operator, the reasons for failure, and other information, which helps to improve emergency operations in a targeted manner.

[0095] When each round of operation is completed, the operation results of each step in this round will be collected, and further processed to see if it is successful, and the operation results will be output, where 0 represents success, 1 represents failure, and 9 represents that the previous step failed and the step was not operated.

[0096] In this embodiment, a data export and storage module is also included: the data in Table 1 and Table 2 will be exported to the computer device connected to the output end through the system program code and stored in the form of a table file.

[0097] The operation data collected by the present invention can be used for subsequent data-driven deepwater blowout accident risk assessment. Traditional accident risk assessment usually relies on the experience of experts, but the data-driven assessment method is difficult to obtain accurate results due to the difficulty in data acquisition. The present invention helps to solve the problem of data shortage through data collection by the VR system, which can be used for accident risk assessment and ensure the safety of emergency operations.

[0098] In this embodiment, the specific implementation process of the evaluation module is as follows:

[0099] According to the exported Table 1, users can know the operation results and error causes so as to make targeted improvements and conduct qualitative evaluation of the simulation operation level.

[0100] According to the derived Table 2, the operation success rate can be calculated, which is convenient for quantitatively judging the operation level of different users and quantitatively evaluating the simulation operation level; at the same time, it helps to solve the problem of lack of data in the data-driven deepwater blowout accident risk assessment method.

[0101] The present invention qualitatively and quantitatively evaluates the operation level of the operator. According to the failure steps and causes, targeted operation improvements are carried out. According to the result data table, the operation level is quantitatively evaluated, and at the same time, the risk assessment of deepwater blowout accidents is performed as data.

[0102] The system developed by the present invention based on VR technology utilizes virtual modeling and operation guidance to allow operators to be immersed in the situation and become familiar with the emergency operation process, thereby improving the effect of emergency training for deepwater blowout accidents.

[0103] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0104] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A deepwater blowout accident emergency drill evaluation method based on virtual reality, characterized in that: include: Conduct 3D modeling of deepwater blowout accident scenarios in a virtual reality environment, including blowout accident scenario modeling, modeling of the correct operation process of installing oil collection covers, and modeling of offshore operating platforms; The virtual scene is constructed based on the established 3D model of deepwater blowout accident scene, including: Rendering of blowout accident scenes, the correct operation process of installing oil collection covers, and offshore operating platforms; Added operation tips for installing the oil collecting cover; For the lowering operation, docking operation, and cutting operation of the oil collecting cover, the corresponding collision space is set, including: For the lowering operation: set the pull-down angle of the joystick of the virtual operator to the corresponding lowering acceleration, and set the acceleration time threshold T to limit the lowering speed. Use the Unity3D collider component Collider to set a collision space with a volume of R1 at the bottom of the lowered object. For the installation docking operation: Use the Unity3D collider component Collider to add collision spaces of volumes V1 and V2 to the docking ends of the two objects to be docked; For cutting operations: Use the Unity3D collider component Collider to add collision spaces of volume V3 and V4 at the cutting position of the object to be cut and on the system's cutter respectively; After building the virtual scene, the results are judged based on the simulated operation, and the operation information is collected and exported; Conduct qualitative and quantitative evaluation of simulated operation levels based on operation information and conduct risk assessment of deepwater blowout accidents; The collected operation information includes step name, step order, operation time, success or failure, and error cause; The judgment of success and error causes includes: For the lowering operation: before the collision space R1 and the lowering end position achieve physical interaction, if the acceleration time does not exceed the time threshold T, the lowering operation is judged to be successful. If it exceeds, the lowering operation is judged to have failed, and the error reason is recorded at the same time: the lowering speed is too fast; For the installation and docking operation: when the collision volumes V1 and V2 achieve physical interaction, the installation operation is judged to be successful, otherwise the installation operation is judged to be failed, and the error cause is recorded at the same time: wrong installation position; For cutting operation: when the collision spaces V3 and V4 achieve physical interaction, the cutting operation is judged to be successful. When the collision spaces V3 and V4 do not achieve interaction, the system judges that the cutting operation has failed and records the error cause: wrong cutting position or wrong operation object; It also includes processing whether it is successful and outputting the operation results in digital form, including success, failure, and failure of the previous step and the step not being operated.

2. The method for emergency drill and evaluation of deepwater blowout accidents based on virtual reality according to claim 1, characterized in that: Added operation tips for installing the oil collecting cover, including: Prompt the operator on the basic operation methods of the VR device when starting to use the device; Prompt the operation steps when starting the deepwater blowout emergency drill, and set a confirmation button after each successful operation; Prompt whether to exit or continue when the operation fails.

3. A deepwater blowout accident emergency drill assessment method based on virtual reality according to claim 2, characterized in that: The operation result is 0 for success, 1 for failure, and 9 for failure of the previous step and no operation is performed on this step.

4. A deepwater blowout accident emergency drill assessment system based on virtual reality, the system is implemented based on any method described in claims 1-3, characterized in that: include: 3D modeling module: used to perform 3D modeling of deepwater blowout accident scenes in a virtual reality environment; Virtual scene construction module: construct virtual scenes based on the established 3D model of deepwater blowout accident scenes; Data acquisition and processing module: used to judge the results according to the simulation operation after building the virtual scene, and to collect and export the operation information; Evaluation module: used to conduct qualitative and quantitative evaluation of simulated operation levels based on operation information and to carry out risk assessment of deepwater blowout accidents.

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