Oil field gathering and transportation worker skill operation drill examination system based on VR technology
The VR-based skills operation training and assessment system has solved the problems of equipment and site requirements in the skills training and assessment of oilfield gathering and transportation workers, and has achieved low-cost and comprehensive training and assessment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-05
- Publication Date
- 2026-03-10
AI Technical Summary
The current training and assessment of oilfield gathering and transportation workers requires the organization of personnel, venues, and equipment, resulting in high training and assessment costs and inconsistent and incomplete equipment and content.
The skills operation training and assessment system based on VR technology includes VR equipment and a main control unit. Through scenario building modules, guided teaching modules, operation training modules and assessment modules, it realizes skills training and assessment in virtual scenarios.
It reduces the costs of manpower, equipment, and venue usage for training, operational drills, and assessments, making training and assessments more flexible and the content more comprehensive and consistent.
Smart Images
Figure CN121640776A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of oilfield production training, and particularly relates to an oilfield gathering and transportation worker skill operation drilling and examination system based on VR technology. BACKGROUND
[0002] VR technology is a kind of human-computer interaction technology that comprehensively applies computer graphics, human-computer interface technology, sensor technology and artificial intelligence technology to create a realistic artificial simulation environment and effectively simulate various perceptions of a person in a virtual environment.
[0003] In the process of oilfield production, it is essential to train the skills of gathering and transportation workers and regularly organize employees to participate in skill operation level identification and evaluate the skill level of employees. At present, a training course is usually made in the form of graphics and text to give theoretical lectures, and a training site is simulated to perform practical operation drilling, and evaluation is performed. Practical operation drilling and evaluation require the construction of a training site, the preparation of equipment and facilities and materials required in the training project, and the provision of corresponding personnel for teaching, evaluation and equipment maintenance. Due to various factors, the training and evaluation require a large investment, the training equipment is not unified, the training content is not comprehensive, and one-on-one training and teaching cannot be performed at any time. SUMMARY
[0004] The present application provides an oilfield gathering and transportation worker skill operation drilling and examination system based on VR technology to solve the problem that the current skill training and evaluation of oilfield gathering and transportation workers require the organization of corresponding personnel, sites and equipment, resulting in high training and evaluation costs, non-uniform and non-comprehensive training equipment and content.
[0005] According to an aspect of the present application, an oilfield gathering and transportation worker skill operation drilling and examination system based on VR technology is provided, comprising: a VR device and a main control unit connected to the VR device; wherein the main control unit comprises: a scene building module for building a three-dimensional model of a gathering and transportation worker skill operation drilling and examination scene; a guided teaching module for determining, according to movement signals collected or input by the VR device, that when a user moves to a first predetermined position in the scene, the voice teaching content is played; an operation drilling module for determining, according to movement signals collected or input by the VR device, that when a user moves to a second predetermined position in the scene, the user is guided to perform corresponding operation drilling of grabbing and trigger pulling through voice, and determining whether the user operation matches the voice guidance content according to the user operation action information collected by the VR device, if yes, a correct prompt is given, otherwise, an error prompt is given; The examination module is configured to determine, according to the movement signal collected or input by the VR device, that when the user moves to a third predetermined position in the scene, according to the control instruction input by the user through the VR device in the control area, the corresponding examination information is displayed in the playing area or the examination scene is entered, and during the examination, according to the operation information input by the user through the VR device, it is judged whether the predetermined operation information corresponding to the examination content is matched, if matched, the corresponding item is added, otherwise the corresponding item is reduced, and the corresponding examination score result is generated according to the score and the score standard.
[0006] Preferably, the VR device comprises a VR headset display connected with the master control unit through a streaming line, for receiving the gathering and transportation work skill operation practice examination scene information generated by the scene building module and collecting user movement information, and a VR control handle connected with the VR headset display, for receiving the movement and operation information of the user and interacting with the scene displayed by the VR headset display.
[0007] Preferably, the scene building module is configured to establish different types of tools and device grid bodies, different examination scene environment components, and different material decals, and generate corresponding three-dimensional scenes for the guide teaching module, the operation practice module and the examination module according to the tools and device grid bodies, the examination scene environment components and the material and decals.
[0008] Preferably, a guide line is arranged in the scene, and the guide line is used to guide the user to move along the path of the first predetermined position, the second predetermined position and the third predetermined position in the scene.
[0009] Preferably, the control instruction input by the user through the VR device in the control area controls the display of the corresponding examination information in the playing area, which comprises: The control area comprises a video teaching control area, and the video teaching control area is provided with corresponding operation buttons, including first play, second play, pause and stop buttons. When the user controls the first play button through the VR device, the playing area displays the examination item content and the score standard. When the user controls the second play button through the VR device, the playing area displays the examination item operation video teaching content.
[0010] Preferably, the control instruction input by the user through the VR device in the control area controls the start of the examination scene, which comprises: The control area further comprises an identification timing control area, and the identification timing control area is provided with corresponding operation buttons, including first timing start, second timing start, first timing stop and second timing stop. The examination scenarios include: tool selection and operation simulation; When a user presses the first countdown start button via VR device, the playback area displays the corresponding countdown time, and the assessment module controls the selection of the examination scenario in the tool selection. When the user presses the second countdown start button via VR device, the playback area displays the corresponding countdown time, and the assessment module controls the entry into the operation simulation exam scenario.
[0011] Preferably, determining whether the operation information input by the user through the VR device matches the predetermined operation information corresponding to the exam content includes: The pre-defined operation information includes: tool selection information and operation simulation information; When entering the tool selection exam scenario, a tool pool will be displayed in the scenario. The user can use the VR device to grab the corresponding tool from the tool pool and put it into the designated area. The assessment module will determine whether the tool type matched the corresponding pre-defined operation information based on the type of the tool put in. When entering the simulated examination scenario, the device to be operated will be displayed in the scenario. The VR device will be used to grab the corresponding tool and perform corresponding operations on the device. The assessment module will determine whether the grabbed tool and the operation performed on the device match the corresponding predetermined operation information.
[0012] Preferably, generating the corresponding exam score result based on the added and deducted points and the scoring criteria includes: The control area also includes a score query area, which is equipped with corresponding operation buttons, including: tool selection score query and operation simulation score query; After the countdown ends, the assessment module calculates the matching status between each user operation and the corresponding predetermined operation during the countdown, as well as the addition and subtraction of points based on the matching status, and calculates the final total score. When a user presses the tool selection score query button via VR device, the playback area displays the score addition and subtraction of each user operation during the timing process of the corresponding tool selection exam scenario, as well as the total score of the tool selection exam scenario; When a user presses the operation simulation score query button through the VR device, the playback area displays the score addition and subtraction of each operation information of the user during the timing process of the corresponding operation simulation exam scenario, as well as the total score of the operation simulation exam scenario.
[0013] Preferably, the examination scenarios include: examination scenarios for primary, intermediate, and advanced levels of gathering and transportation workers; The basic examination scenarios for gathering and transportation workers include: starting and stopping centrifugal pumps, starting and stopping plunger pumps, starting and stopping dosing devices, replacing valve sealing packing, replacing electric motor fans, replacing lubricating oil in single-stage single-suction cantilever centrifugal pumps, and replacing pressure gauges. The intermediate-level examination scenarios for gathering and transportation workers include: switching centrifugal pumps, switching the power supply to the oil transfer station, manually gauging oil tanks, replacing centrifugal pump sealing packing, cleaning and inspecting centrifugal pump filters, and replacing flange gaskets. The advanced examination scenarios for gathering and conveying workers include: replacing flange valves, replacing centrifugal pump coupling gaskets, measuring cross-flow in multi-stage centrifugal pumps, troubleshooting centrifugal pump cavitation, troubleshooting insufficient centrifugal pump pressure, and troubleshooting excessively high motor temperature.
[0014] Preferably, when entering the tool selection exam scenario, the assessment module determines whether the type of tool the user selects and places matches the corresponding predetermined operation information. If not, an error voice prompt is issued. When entering the simulated exam scenario, the assessment module determines whether the type of tool the user has captured and the operation performed on the device match the corresponding pre-defined operation information. If not, an error voice prompt is issued.
[0015] Preferably, when the user inputs a reset control command through the VR device, the assessment module restores the current examination scene to its initial state.
[0016] The present invention has at least the following beneficial effects: This invention proposes an oilfield gathering and transportation worker skills operation training and assessment system based on VR technology. By setting up VR equipment and a main control unit to simulate scenarios and allow users to interact with virtual scenarios, the system reduces the labor, equipment, and site usage costs during gathering and transportation worker training, operation drills, and assessments, making training and assessment times more flexible and training content more comprehensive and standardized. Attached Figure Description
[0017] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present invention and, together with the specification, serve to explain the technical solutions of the present invention.
[0018] Figure 1 This diagram illustrates the structural block diagram of the main control unit according to an embodiment of the present invention; Figure 2 A schematic diagram of a virtual scene plane according to an embodiment of the present invention is shown.
[0019] In the diagram, 1-System initialization area, 2-Display board voice teaching area, 3-Operation practice area, 4-Indoor practice area, 5-System introduction area. Detailed Implementation
[0020] Various exemplary embodiments, features, and aspects of the present invention will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.
[0021] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.
[0022] In this document, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A alone, A and B simultaneously, and B alone. Furthermore, the term "at least one" in this document means any combination of at least two of any one or more elements. For example, including at least one of A, B, and C can mean including any one or more elements selected from the set consisting of A, B, and C.
[0023] Furthermore, to better illustrate the present invention, numerous specific details are set forth in the following detailed embodiments. Those skilled in the art will understand that the present invention can be practiced without certain specific details. In some instances, methods, means, elements, and circuits well known to those skilled in the art have not been described in detail in order to highlight the spirit of the invention.
[0024] Figure 1 This diagram illustrates the structural block diagram of the main control unit according to an embodiment of the present invention; Figure 2 A schematic diagram of a virtual scene plane according to an embodiment of the present invention is shown. Figures 1-2As shown, an oilfield gathering and transportation worker skills operation training and assessment system based on VR technology includes: a VR device and a main control unit connected to the VR device; wherein, the main control unit includes: a scene building module, used to build a three-dimensional model of the gathering and transportation worker skills operation training and assessment scene; a guidance teaching module, used to determine when the user moves to a first predetermined position in the scene based on the movement signals collected or input by the VR device, and control the playback of voice teaching content; an operation training module, used to determine when the user moves to a second predetermined position in the scene based on the movement signals collected or input by the VR device, and guide the user to perform grasping and trigger corresponding operation training through voice, and based on the user operation action information collected by the VR device. The system checks whether the user's actions match the voice guidance content. If they match, a correct prompt is given; otherwise, an error prompt is given. The assessment module, based on movement signals collected or input by the VR device, determines when the user moves to a third predetermined position in the scenario. Then, based on the control commands input by the user through the VR device in the control area, it controls the display of corresponding exam information in the playback area or initiates the exam scenario. During the exam, it checks whether the user's input through the VR device matches the predetermined operation information corresponding to the exam content. If they match, points are added to the corresponding item; otherwise, points are deducted. The system generates the corresponding exam score based on the added and deducted points and the scoring criteria.
[0025] In this embodiment of the invention, the scene building module of the main control unit is developed based on the Unreal Engine 5.3.2 platform, and can be packaged for platforms such as Windows and VR all-in-one machines, enabling digital VR skills operation simulation training and assessment for oilfield gathering and transportation workers.
[0026] During training, operational drills, or assessments, users interact with the main control unit by wearing VR devices. The main control unit collects the user's movement and operation information through the VR devices, including user actions or input control commands. The VR devices display a virtual transportation worker skills operation drill and assessment scenario built by the scenario building module, within which users move and operate.
[0027] like Figure 2As shown, when a user enters the system scene, they are in the initial area 1. The main control unit's guidance and teaching module, based on the user's movement information collected or input through the VR device, identifies when the user moves to the first predetermined position within the scene and controls the VR device to issue a voice prompt that the user has arrived at the display board voice teaching area 2. Several voice teaching display boards are set up within the display board voice teaching area, each displaying corresponding teaching content. Within this area, the guidance and teaching module collects the user's movement information through the VR device and identifies when the user moves to the area corresponding to a certain display board. The guidance and teaching module then controls the VR device to play the corresponding voice teaching content for that display board. The user learns basic operations based on the displayed and played voice teaching content, such as moving within the scene using the VR device, grabbing objects, and trigger interaction.
[0028] The main control unit's operation training module, based on the user's movement information collected or input through the VR device, identifies when the user moves to the second predetermined position within the scene and controls the VR device to issue a voice prompt that the user has arrived at the operation training area 3. Several operation interaction simulation tables are set up in the operation training area, with items placed on the platforms for practice. The operation training module uses the VR device to play voice prompts to guide the user in practicing item grabbing and trigger interaction operations. Based on the user's operation action information collected by the VR device, the operation training module determines whether the user's operation matches the predetermined operation corresponding to the voice guidance content. If it matches, a correct voice prompt is given; otherwise, an incorrect voice prompt is given.
[0029] The assessment module of the main control unit identifies the user's movement information collected or input through the VR device. When the user moves to the third predetermined position within the scene, the module controls the VR device to issue a voice prompt that the user has arrived at the indoor training area 4. The indoor training area includes a control area and a playback area. The assessment module controls the display of corresponding exam information, such as exam content and scoring criteria, in the playback area based on the control commands input by the user through the VR device in the control area. After the user inputs the start-of-exam command through the control area, the assessment module displays the scene, tools, and equipment corresponding to that exam content. During the exam, the module determines whether the user's input of operation information on the tools and equipment through the VR device matches the predetermined operation information corresponding to the exam content. If they match, points are added to the corresponding operation; otherwise, points are deducted. The final exam score is generated based on these points and the corresponding scoring criteria.
[0030] In addition, a system introduction area 5 is set up in the system scenario. Based on the movement information collected or input by the user through the VR device, the main control unit recognizes that when the user moves to the fourth predetermined position in the scenario, it controls the VR device to issue a voice prompt that the user has arrived at the system introduction area 5, and controls the playback of the introduction to the oilfield gathering and transportation worker skills operation training and assessment system based on VR technology.
[0031] In this invention, the VR device includes: a VR headset display connected to the main control unit via a streaming cable, used to receive scene information of the collection and transportation worker skill operation training and assessment generated by the scene building module and to collect user movement information; and a VR control handle connected to the VR headset display, used to receive user movement and operation information and to interact with the scene displayed on the VR headset display.
[0032] In this embodiment of the invention, the VR headset display is used to receive scene information of the collection and transportation worker skill operation training and assessment, as well as user interaction information with the scene, generated by the scene building module. The VR headset display is wired to the host of the main control unit via a dedicated VR streaming cable to complete the data transmission function. VR control handles (including left and right handles) are used for user interaction with the scene.
[0033] When using the VR all-in-one device, users should wear it correctly, including adjusting the tightness of the headset display and interpupillary distance. The VR device can also be equipped with features such as prescription glasses, supporting myopia adjustment. The device is best used in an open indoor environment, at least 2x2 meters in size. The VR all-in-one device is compatible with SteamVR, and the controller mapping uses preset mappings from Unreal Engine (Unreal Engine 5.3.2).
[0034] The helmet-mounted display can capture the user's head movements in the forward, backward, left, right, up, down, and rotation directions, providing real-time feedback within the system environment. The controllers collect user input; their general functions include left and right joysticks, grabbing, and interactive features.
[0035] When a user moves to the first predetermined location in the scene using a headset or controller, namely the display board and audio teaching area, they complete the operation tutorial of the VR all-in-one device through the display boards in the scene and the played audio. After successfully completing the operation tutorial, the user moves to the second predetermined location, namely the operation practice area, where they simulate grasping and trigger interaction operations using the controllers on the operation interaction simulation table.
[0036] As the user moves within the scene, the VR headset tracks the user's position and rotation angle in real time; the VR controllers track the user's hand position and rotation angle in real time. The headset and controllers transmit the collected position and angle information to the main control unit, enabling synchronized interaction with movement within the scene.
[0037] The virtual scene displays a pre-defined safety zone for movement. If the user exceeds this safety zone while using the VR device, the main control unit will switch the VR virtual scene back to the real scene, prompting the user to adjust their real-world position. Movement and turning within the scene can also be achieved using the controllers. Specifically: push the right joystick; the virtual scene will display a parabolic trajectory and the desired location. After adjusting the position, release the joystick; the user will automatically move to the desired location. To turn, control the left joystick; the direction of rotation corresponds to the user's turning position within the virtual scene.
[0038] The user can perform actions via the controller, including grasping. To grasp an object, control the middle finger button on the left or right controller. First, move the virtual hand in the scene (the controller) until it overlaps with the object being grasped, then press the button to perform the grasp. Releasing the button cancels the grasp, and the object will fall freely under simulated gravity.
[0039] The main control unit sets up simulated touch interaction functions on the right index finger of the virtual operator's hand in the scene to execute various button operation interaction functions in the scene. The specific touch interaction operation is as follows: when a virtual collider 1 is set in the model of the right index finger of the virtual operator's hand in the scene, and a virtual collider 2 is set in the model of the interaction button, when the index finger of the virtual operator's hand touches the button and presses it down, the virtual collider 1 (virtual operator's hand) and the virtual collider 2 (button) overlap. After the assessment module of the main control unit receives the collider detection, it executes the corresponding related function; when the right index finger of the virtual operator's hand leaves the button, the button detects that the collider has left and executes the button position reset operation.
[0040] Additionally, the system UI menu can be accessed by pressing the A button on the left-hand controller, which offers three function options: Reset, Restart, and Exit System.
[0041] In this invention, the scene building module is used to create different types of tool and equipment meshes, different examination scene environment components, and different material decals, and generate the corresponding three-dimensional scenes of the guided teaching module, operation practice module, and assessment module based on the tool and equipment meshes, examination scene environment components, materials, and decals.
[0042] In this embodiment of the invention, the main map generated by the scene building module is a 64×64 resolution model, i.e., a realistic scale model of 128 meters × 128 meters. It contains 375 meshes of various types, 5 environmental components, and 67 materials and decals of various types. It is divided into 5 areas: 1. Indoor practice area, 2. Operation practice area, 3. Display board and voice teaching area, 4. System introduction area, and 5. System operation start area.
[0043] In this invention, a guide line is provided in the scene, which is used to guide the user to move in the scene according to the path of the first predetermined position, the second predetermined position and the third predetermined position.
[0044] In this embodiment of the invention, a user path guide, i.e., a guide line, is set within the scene. This guide line is a yellow path. After the user enters the virtual scene, the main control unit controls the system to play voice prompts, guiding the user to move along the yellow path. The movement sequence is to first move to the audio teaching area on the display board, and then to the operation practice area, completing the operation teaching within the system in sequence. After becoming familiar with the operation of the VR system, the user is guided to enter the indoor practice area to begin the formal skills assessment simulation operation.
[0045] In this invention, the control commands input via the VR device in the control area to control the display of corresponding exam information in the playback area include: the control area includes a video teaching control area, which is equipped with corresponding operation buttons, including: a first play button, a second play button, a pause button, and a stop button; when the user presses the first play button via the VR device, the playback area displays the exam item content and scoring criteria; when the user presses the second play button via the VR device, the playback area displays the exam item operation video teaching content.
[0046] In this embodiment of the invention, when a user enters the indoor training area, a simulated skills assessment begins. The simulated assessment process includes the explanation of the exam content, live video teaching of the exam, and simulated interactive assessment.
[0047] The exam content delivery process is as follows: The user uses a VR controller to move a virtual hand in the scene to the first play button in the video teaching control area, and presses the first play button through simulated touch interaction. After the first play button is pressed, the assessment module controls the large screen on the wall (playback area) to play the exam content and scoring information based on this signal.
[0048] The live video teaching process for the exam is as follows: The user uses a VR controller to move the virtual hand in the scene to the second play button in the video teaching control area and presses the second play button. When the second play button is pressed, the assessment module controls the playback area to play the assessment skill learning content (exam item operation video teaching content) corresponding to the exam item content.
[0049] During playback, users can control the pause or stop button by pressing it using the VR controller. The assessment module controls the playback of the exam items and scoring content or the exam item operation video teaching content in the playback area to pause or stop based on the pause or stop button press signal.
[0050] In this invention, the step of controlling the entry into the examination scenario based on the control command input by the user through the VR device in the control area includes: the control area further includes an assessment timing control area, which is equipped with corresponding operation buttons, including: first timing start, second timing start, first timing stop, and second timing stop; the examination scenario includes: tool selection and operation simulation; when the user presses the first timing start button through the VR device, the playback area displays the corresponding countdown time, and the assessment module controls the entry into the tool selection examination scenario; when the user presses the second timing start button through the VR device, the playback area displays the corresponding countdown time, and the assessment module controls the entry into the operation simulation examination scenario.
[0051] In this embodiment of the invention, the process of the simulated interaction assessment is as follows: the user uses a VR controller to move the virtual hand in the scene to the first timer start button in the assessment timer control area, and then controls the user to press the first timer start button. After the first timer start button is pressed, the assessment module controls the display tool in the playback area to select a 1-minute countdown based on this signal, and at the same time, controls the display tool to select the examination scene.
[0052] The user uses a VR controller to move a virtual hand in the scene to the second timer start button in the assessment timer control area and presses the button. Once the second timer start button is pressed, the assessment module displays a 10-minute countdown in the playback area based on this signal, while simultaneously displaying the simulated exam scenario.
[0053] During the exam, i.e. the countdown, the user can use the VR controller to press the first or second timer stop button. The assessment module will control the corresponding tool to select the exam scenario and stop the countdown based on the first timer stop button press signal, or the assessment module will control the corresponding operation to simulate the exam scenario and stop the countdown based on the second timer stop button press signal.
[0054] In this invention, the step of determining whether the operation information input by the user through the VR device matches the predetermined operation information corresponding to the exam content includes: the predetermined operation information includes tool selection information and operation simulation information; when entering the tool selection exam scenario, a tool pool will be displayed in the scenario, and the user will use the VR device to grab the corresponding tool from the tool pool and place it in a designated area, and the assessment module will determine whether it matches the corresponding predetermined operation information based on the type of the placed tool; when entering the operation simulation exam scenario, the device to be operated will be displayed in the scenario, for the user to grab the corresponding tool through the VR device and perform corresponding operations on the operating device, and the assessment module will determine whether it matches the corresponding predetermined operation information based on the type of the grabbed tool and the operation performed on the device.
[0055] In this invention, when entering the tool selection exam scenario, the assessment module determines whether the type of tool the user grabs and places matches the corresponding predetermined operation information. If not, an error voice prompt is issued. When entering the operation simulation exam scenario, the assessment module determines whether the type of tool the user grabs and the operation performed on the device matches the corresponding predetermined operation information. If not, an error voice prompt is issued.
[0056] In this embodiment of the invention, during the tool selection exam scenario, two tool pools are created. The first tool pool contains various operating tools, while the second tool pool is initially empty. When taking the exam, the user sequentially selects the tools required for the current exam item from the first tool pool and places them into the second tool pool (a designated area). During the tool selection process, the assessment module determines whether the selected tools (operation information) placed in the second tool pool match the predetermined tool type (predetermined operation information) for the exam item. If not, the assessment module issues an error message.
[0057] In the simulated exam scenario, various devices related to the exam content will appear. During the exam, the user must select the correct tool from all the tools chosen in the previous tool selection exam scenario and perform the corresponding operation on the device. Specifically, by moving the virtual hand to the corresponding position on the device and pressing the trigger, the user performs the operation. The assessment module determines whether the type of tool selected and its position on the device when the trigger is pressed (operation information) match the predetermined tool type and predetermined operation position (predetermined operation information) for that exam item. If not, the assessment module will issue an error message. For example, if the selected tool type is a wrench, moving the wrench to the corresponding screw position on the device and pressing the trigger will automatically unscrew the screw, completing the operation. If the selected tool type or the tool's position is incorrect, an error message will be displayed.
[0058] In this invention, generating corresponding exam scores based on the added and subtracted points and the scoring criteria includes: the control area further includes a score query area, which is equipped with corresponding operation buttons, including: tool selection score query and operation simulation score query; after the countdown time ends, the assessment module statistically analyzes the matching between each user operation and the corresponding predetermined operation during the timing process, and adds and subtracts points based on the matching, and calculates the final total score; when the user presses the tool selection score query button through the VR device, the playback area displays the added and subtracted points for each user operation during the timing process of the corresponding tool selection exam scenario, as well as the total score of the tool selection exam scenario; when the user presses the operation simulation score query button through the VR device, the playback area displays the added and subtracted points for each user operation during the timing process of the corresponding operation simulation exam scenario, as well as the total score of the operation simulation exam scenario.
[0059] In this embodiment of the invention, after entering the tool selection exam scenario, all tool selections must be completed within a 1-minute countdown. After the countdown ends, the assessment module deducts or adds points based on the error and correct information of the tool type captured and placed into the second tool pool each time during the tool selection process, and calculates the score for this tool selection exam.
[0060] After entering the operation simulation exam scenario, all operations on the device must be completed within a 10-minute countdown. After the countdown ends, the assessment module will deduct or add points based on the type of tool captured each time during the operation simulation and the error and correct information of the operation at the corresponding position on the device, and calculate the score for this operation simulation exam.
[0061] After completing the tool selection and operation simulation exam, the operator moves to the score query area and uses the virtual index finger of the handle to touch and press the tool selection score query or operation simulation score query button to query the score of the preparation stage tool selection exam scenario or the operation simulation exam scenario, respectively. The score results will be displayed on the large screen in the playback area in the form of video and audio media playback.
[0062] In this invention, the examination scenarios include: primary, intermediate, and advanced examination scenarios for gathering and transportation workers; the primary examination scenario includes: starting and stopping centrifugal pumps, starting and stopping plunger pumps, starting and stopping dosing devices, replacing valve sealing packing, replacing motor fans, replacing lubricating oil in single-stage single-suction cantilever centrifugal pumps, and replacing pressure gauges; the intermediate examination scenario includes: switching centrifugal pumps, switching the power supply to the oil transfer station, manually gauging oil tanks, replacing centrifugal pump sealing packing, cleaning and inspecting centrifugal pump filters, and replacing flange gaskets; the advanced examination scenario includes: replacing flange valves, replacing centrifugal pump coupling gaskets, measuring cross-flow in multi-stage centrifugal pumps, handling centrifugal pump cavitation faults, handling centrifugal pump insufficient pressure faults, and handling excessively high motor temperatures.
[0063] In this embodiment of the invention, the predetermined tool types for selecting tools corresponding to the centrifugal pump start-up and shutdown test scenario include: adjustable wrench, "F" type wrench, flathead screwdriver, infrared thermometer, insulating gloves, operation / shutdown sign, venting bucket, and carbon pen; the corresponding equipment for operation simulation is a centrifugal pump unit; the operation process for the equipment includes: 1) preparation work; 2) pre-start inspection; 3) start-up parameter adjustment; 4) post-start-up inspection and recording; 5) stop pump.
[0064] The pre-selected tool types for the starting and stopping of the plunger pump test scenario include: adjustable wrench, packing wrench, run / stop sign, venting bucket, and insulating gloves; the corresponding simulated equipment is a plunger pump unit; the operation procedure for the equipment includes: 1) preparation; 2) checking the lubricating oil; 3) checking the hydraulic end; 4) checking the motor; 5) reversing the flow; 6) pump rotation; 7) trial operation; 8) pump start-up inspection; 9) pump shutdown; 10) reversing the flow.
[0065] The pre-selected tool types for the test scenario of starting and stopping the dosing device include: adjustable wrench, flathead screwdriver, Allen wrench, insulating gloves, operation sign, shutdown sign, and carbon pen; the corresponding equipment for operation simulation is the dosing pump unit; the operation process of the equipment includes: 1) preparation; 2) pre-start inspection; 3) reverse process; 4) start pump; 5) stop pump; 6) reverse process.
[0066] The pre-selected tool types for the test scenario of changing valve sealing packing include: adjustable wrench, flathead screwdriver, F-wrench, sealing packing hook, sealing packing gland hook, utility knife, and venting bucket; the corresponding simulated equipment is lubricating grease and sealing packing; the operation process for the equipment includes: 1) preparation; 2) reversing the process; 3) changing the packing; 4) pressure testing; 5) reversing the process.
[0067] The pre-selected tool types for the test scenario of replacing the electric motor fan include: adjustable wrench, flathead screwdriver, snap ring pliers, test pen, insulating gloves, hand hammer puller, and special sleeve; the corresponding simulated equipment is a three-phase asynchronous motor; the operation procedure for the equipment includes: 1) preparation; 2) power off; 3) disassembly; 4) installation.
[0068] The pre-selected tool types for the test scenario of changing the lubricating oil of a single-stage, single-suction cantilever centrifugal pump include: adjustable wrench, lubricating oil can, oil filling funnel, and sludge basin; the corresponding simulated equipment is a single-stage, single-suction cantilever centrifugal pump; the operation procedure for the equipment includes: 1) preparation; 2) selecting lubricating oil; 3) pre-replacement inspection; 4) draining and recovering old lubricating oil; 5) cleaning the oil chamber; 6) adding new lubricating oil; 7) post-replacement inspection.
[0069] The pre-selected tool types for the pressure gauge replacement exam scenario include: adjustable wrench, needle, wire brush, and wire hook; the corresponding simulated equipment is a pressure gauge, pressure gauge gasket, and Teflon tape; the operation procedure for the equipment includes: 1) preparation; 2) selecting the pressure gauge; 3) removing the pressure gauge and gauge connector; 4) cleaning; 5) installing the gauge connector and pressure gauge; 6) pressure test; 7) observing the pressure value.
[0070] The pre-selected tool types for switching to the centrifugal pump exam scenario include: adjustable wrench, "F" type wrench thermometer, insulating gloves, empty tank operation sign, spare sign, and carbon pen; the corresponding simulated equipment is a centrifugal pump unit; the operation procedure for the equipment includes: 1) preparation; 2) checking the spare pump; 3) starting the spare pump; 4) stopping the pre-stop pump; 5) adjusting the operating pump; 6) checking the operating pump.
[0071] The pre-selected tool types for the test scenario of switching the power supply to the oil station include: adjustable wrench "F" type, venting bucket, insulated gloves, operation sign, and shutdown sign; the corresponding simulated equipment is the distribution cabinet and the generator unit; the operation procedure for the equipment includes: 1) preparation work; 2) stopping the pump; 3) cutting off the power supply; 4) disconnecting the shut-off distribution cabinet switch; 5) closing the bus tie; 6) closing the standby pump switch; 7) pre-start inspection; 8) starting the pump.
[0072] The pre-selected tool types for the manual gauging test scenario for oil tanks include: oil dipstick, explosion-proof flashlight, safety belt, and carbon pen; the corresponding equipment for operation simulation is an oil tank; the operation process for the equipment includes: 1) preparation; 2) instructions for loading the tank; 3) pre-loading inspection; 4) gauging operation; 5) calculating the oil level.
[0073] The pre-selected tool types for the test scenario of replacing centrifugal pump sealing packing include: adjustable wrench, F-type wrench, flathead screwdriver, wooden board, utility knife, insulated gloves, and special tool for removing packing; the corresponding simulated equipment is a centrifugal pump unit; the operation process for the equipment includes: 1) preparation; 2) measuring and cutting the packing; 3) replacing the packing; 4) installing the packing gland; 5) trial operation and adjustment; 6) stopping the pump and reversing the process to remove the old packing.
[0074] The pre-selected tool types for the test scenario of cleaning and inspecting centrifugal pump filters include: box wrench, F-type wrench, wire brush, pry bar, flat scraper, cleaning basin, empty bucket, and maintenance sign; the corresponding simulated equipment is a centrifugal pump unit; the operation process for the equipment includes: 1) preparation; 2) reverse flow; 3) disassembly; 4) cleaning; 5) installing filter screen and gasket; 6) pressure test.
[0075] The pre-selected tool types for the test scenario of changing a flange gasket include: steel ruler, adjustable wrench, hacksaw blade, flathead screwdriver, pry bar, "F" wrench, and venting bucket; the corresponding equipment for operation simulation is a polytetrafluoroethylene gasket; the operation procedure for the equipment includes: 1) preparation; 2) reversing the process; 3) removing the old gasket; 4) replacing the gasket; 5) pressure testing; 6) reversing the process.
[0076] The pre-selected tool types for the test scenario of replacing flange valves include: flange valve, adjustable wrench, flathead screwdriver, pry bar, and F-type wrench vent; the corresponding equipment for operation simulation is a polytetrafluoroethylene gasket; the operation process for the equipment includes: 1) preparation; 2) reversing the process; 3) disassembling the old valve; 4) installing the new valve; 5) pressure testing; 6) reversing the process.
[0077] The pre-selected tool types for the test scenario of replacing the centrifugal pump coupling gasket include: adjustable wrench, box wrench, pry bar, copper rod, steel ruler, feeler gauge, standard measuring block, and hacksaw blade; the operation procedure for the equipment includes: 1) preparation; 2) pre-replacement inspection; 3) disassembling and moving the motor; 4) replacing the gasket; 5) installing the motor; 6) adjusting coaxiality; 7) pump inspection.
[0078] The pre-selected tool types for the test scenario of measuring the cross-flow of a multistage centrifugal pump include: pry bar, flathead screwdriver, vernier caliper, feeler gauge, and carbon pen; the corresponding equipment for operation simulation is a multistage centrifugal pump; the operation procedure for the equipment includes: 1) preparation; 2) checking the coupling; 3) checking the vernier caliper; 4) first measurement; 5) second measurement; 6) calculation conclusion.
[0079] In this invention, when a user inputs a reset control command through a VR device, the assessment module restores the current examination scene to its initial state.
[0080] In this embodiment of the invention, during the tool selection and operation simulation exam, the user can select "reset" in the system function menu using the handle, and the tool selection or operation simulation exam scenario will be restored to its initial state.
[0081] It is understood that the various method embodiments mentioned above in this invention can be combined with each other to form combined embodiments without violating the principle and logic. Due to space limitations, this invention will not elaborate further.
[0082] This invention system references the scoring structure of a skills assessment evaluation table and records the entire process of intelligent scoring for the skills assessment, including tool selection and operation simulation. The interactive simulation function for the transportation worker's operation project (operation simulation) is the core function of this system. Based on the real-world scenarios and processes of skills assessment, it simulates and builds the skills assessment examination projects for transportation workers within this system. It creates various tools and equipment used in the simulated examination, and programs different code functions on a grid-based basis to achieve interactive functionality for correct tool use and voice prompts and point deductions for incorrect tool use. The interactive functions of tools and equipment immerse operators in a simulated examination environment, familiarize them with the assessment examination process, and help them remember the deduction items.
[0083] This system offers a more realistic simulation environment with real-time interactive capabilities for gathering and transportation workers' skills. This includes guided operation via VR glasses (helmets) within the simulated environment, review of simulated content for gathering and transportation worker skills assessment, video tutorials for simulated skills assessment, timed skills assessment simulation, intelligent scoring for skills assessment, and interactive simulation of gathering and transportation worker operations. This eliminates the limitations of training venues, instructors, and equipment, resulting in lower training costs, standardized equipment, more comprehensive training content, and the ability to conduct one-on-one training anytime, aligning with the new direction of digital transformation in oilfields.
[0084] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.
Claims
1. An oilfield gathering and transportation work skill operation practice examination system based on VR technology, characterized in that, The system comprises: a VR device and a master control unit connected to the VR device; wherein the master control unit comprises: a scene building module for building a gathering worker skill operation practice and examination scene three-dimensional model; a guided teaching module for determining, according to movement signals collected or input by the VR device, that when a user moves to a first predetermined position in the scene, the playing of voice teaching content is controlled; an operation practice module for determining, according to movement signals collected or input by the VR device, that when the user moves to a second predetermined position in the scene, the user is guided to perform corresponding operation practice of grabbing and trigger through voice, and judging whether the user operation matches the voice guidance content according to user operation action information collected by the VR device, if yes, correct prompt is given, otherwise, error prompt is given; an examination module for determining, according to movement signals collected or input by the VR device, that when the user moves to a third predetermined position in the scene, according to the control instruction input by the user in the control area through the VR device, the corresponding examination information is displayed in the playing area or the examination scene is entered, and during the examination, whether the operation information input by the user through the VR device matches the predetermined operation information corresponding to the examination content is judged, if yes, the corresponding item is added, otherwise, the corresponding item is reduced, and the corresponding examination score result is generated according to the score and the score standard. 2.The VR technology-based oilfield gathering and transportation work skill operation rehearsal examination system according to claim 1, characterized in that, The VR device comprises: a VR headset display connected to the master control unit through a streaming line, for receiving the gathering worker skill operation practice and examination scene information generated by the scene building module and collecting user movement information, and a VR control handle connected to the VR headset display, for receiving user movement and operation information, and interacting the movement and operation information with the scene displayed by the VR headset display.
3. The VR technology-based oilfield gathering worker skill operation practice and examination system according to claim 1, characterized in that: the scene building module is configured to establish different types of tool and device grid bodies, different examination scene environment components, and different material decals, and generate corresponding three-dimensional scenes of the guided teaching module, the operation practice module, and the examination module according to the tool and device grid bodies, the examination scene environment components, and the material and decals.
4. The VR technology-based oilfield gathering worker skill operation practice and examination system according to claim 1, characterized in that: a guide line is arranged in the scene, and the guide line is configured to guide the user to move along a path of the first predetermined position, the second predetermined position, and the third predetermined position in the scene. 5.The VR technology-based oilfield gathering and transportation work skill operation rehearsal examination system according to claim 1, characterized in that, The control instruction input by the VR device in the control area to control the display of corresponding examination information in the playing area comprises: the control area comprises a video teaching control area, and the video teaching control area is provided with corresponding operation buttons, including a first play button, a second play button, a pause button, and a stop button; when the user controls the first play button through the VR device, the playing area displays examination item content and score standard; When the user presses the second play button through the VR device, the play area displays the examination item operation video teaching content.
6. The VR technology-based oilfield gathering and transferring work skill operation drilling examination system according to any one of claims 1-5, characterized in that, The control area includes a control region, and the control region is set with corresponding operation buttons, including a first play button and a second play button. The control region further includes an identification timing control area, and the identification timing control area is set with corresponding operation buttons, including a first timing start button, a second timing start button, a first timing stop button, and a second timing stop button. The examination scene includes tool selection and operation simulation. When the user presses the first timing start button through the VR device, the play area displays the corresponding countdown time, and the examination module controls the tool selection examination scene. When the user presses the second timing start button through the VR device, the play area displays the corresponding countdown time, and the examination module controls the operation simulation examination scene.
7. The VR technology-based oilfield gathering and transferring work skill operation rehearsal examination system according to claim 6, characterized in that, The examination module judges whether the operation information input by the user through the VR device matches the predetermined operation information corresponding to the examination content. The predetermined operation information includes tool selection information and operation simulation information. When the tool selection examination scene is entered, a tool pool is displayed in the scene, the user grabs the corresponding tool in the tool pool through the VR device, and puts it into a designated area, and the examination module judges whether the type of the put-in tool matches the corresponding predetermined operation information. When the operation simulation examination scene is entered, the device to be operated is displayed in the scene, the user grabs the corresponding tool through the VR device, and performs corresponding operation on the operation device, and the examination module judges whether the type of the grabbed tool and the operation performed on the device match the corresponding predetermined operation information. 8.The VR technology-based oilfield gathering and transportation work skill operation rehearsal examination system according to claim 7, characterized in that, The corresponding examination score result is generated according to the score adding and score deduction and the score standard. The control area further includes a score query area, and the score query area is set with corresponding operation buttons, including tool selection score query and operation simulation score query. After the countdown time ends, the examination module counts the matching conditions between each operation information of the user and the corresponding predetermined operation information in the timing process, and performs score adding and score deduction according to the matching conditions, and calculates the final total score. When the user presses the tool selection score query button through the VR device, the play area displays the score adding and score deduction of each operation information of the user in the timing process of the corresponding tool selection examination scene, and the total score of the tool selection examination scene. When the user presses the operation simulation score query button through the VR device, the play area displays the score adding and score deduction of each operation information of the user in the timing process of the corresponding operation simulation examination scene, and the total score of the operation simulation examination scene. 9.The VR technology-based oilfield gathering and transportation work skill operation rehearsal examination system according to claim 6, characterized in that, The examination scene includes a gathering and transportation worker primary examination scene, a gathering and transportation worker intermediate examination scene, and a gathering and transportation worker advanced examination scene. The gathering and transportation worker primary examination scene includes start-stop centrifugal pump, start-stop piston pump, start-stop dosing device, replace valve sealing packing, replace motor fan, replace single-stage single-suction cantilever centrifugal pump lubricating oil, and replace pressure gauge examination content. The gathering and transportation worker intermediate examination scene includes switching centrifugal pumps, switching power supply of oil transfer stations, manual gauge checking of oil tanks, replacing sealing filler of centrifugal pumps, cleaning and checking centrifugal pump filters, and replacing flange gasket examination contents; The gathering and transportation worker senior examination scene includes replacing flange valves, replacing centrifugal pump coupling rubber pads, measuring multi-stage centrifugal pump leakage, handling centrifugal pump vacuuming faults, handling centrifugal pump pressure deficiency faults, and handling motor temperature overhigh faults. 10.The VR technology-based oilfield gathering and transportation worker skill operation practice examination system according to claim 7, characterized in that, When the tool selection examination scene is entered, the examination module judges whether the tool type grabbed and put by the user matches the corresponding predetermined operation information, and if not, an error voice prompt is issued; When the operation simulation examination scene is entered, the examination module judges whether the tool type grabbed by the user and the operation performed on the equipment match the corresponding predetermined operation information, and if not, an error voice prompt is issued. 11.The VR technology-based oilfield gathering and transportation worker skill operation practice examination system according to claim 7, characterized in that: When the user inputs a reset control instruction through the VR device control, the examination module restores the current examination scene to the initial state.