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The daily maintenance of oil pipelines is a difficult point in the field of oil pipeline transportation. Line inspection needs to inspect the damage to the pipeline caused by changes in the natural environment, man-made damage to the pipeline, equipment aging, and the operation of auxiliary equipment. Currently, pressure measurement equipment has been used to monitor the leakage of oil pipelines in real time, but this monitoring method can only be found after the accident occurs. , For long oil pipelines, how to improve the efficiency of inspections, save human and material resources to the greatest extent, and assist with efficient tools is particularly important. The traditional maintenance management methods and models in the past have been difficult to adapt to the requirements of today’s operation and management, and the requirements for management informatization and standardization are getting higher and higher. In particular, the development of geographic information technology GIS provides technical means and guarantees for the informatization of oil pipeline management. . At the same time, the handheld computer industrial PDA is a portable device that is a terminal, and the direct combination of GPS and GIS has been rapidly promoted in the oil line inspection work. It has brought a new technological innovation to the traditional working mode.
【demand analysis】
The ultimate goal of oil pipeline management and control is to reduce costs, improve work efficiency and service levels. This requires companies to be able to grasp the detailed information of each pipeline in a timely, accurate and comprehensive manner. At the same time as the daily inspection work, the inventory management of pipeline assets is completed, the entire life cycle management of the equipment on the network is realized, the accounts are consistent with the physical objects, and the real-time comprehensive information of the oil transmission is mastered. The development of modern technology and communication technology, the maturity of GPS/GIS/RFID technology and the wide application of GPRS wireless communication technology have provided powerful and effective tools for modern oil management and control. GPS/GIS/GPRS will play a positive role in promoting enterprises to optimize resource allocation and improve market competitiveness.
This system is a multi-element, multi-level, multi-functional spatial geographic information comprehensive collection and management system for the macro management of the petroleum pipeline inspection department and the provision of services for field operations. It can reflect the comprehensive information of oil pipelines in a timely and convenient manner. It is of great significance to deepen the reform of oil pipeline management and operation mechanism, promote the scientific decision-making and management modernization, and also improve the scientificity, accuracy and real-time nature of work.
【System Overview】
The oil pipeline resource management solution is a software and hardware integrated system integrating global satellite positioning system (GPS), geographic information system (GIS), radio frequency identification system (RFID) and GPRS wireless communication technology. The system is mainly composed of four parts: multifunctional explosion-proof tablet computer, GPS satellite positioning system, GPRS wireless data link and monitoring center software system. It can conduct unified centralized management and real-time monitoring, dispatching and commanding of wellheads and pipelines.
1. The main design ideas of the system
The safety-type explosion-proof tablet computer has passed the explosion-proof inspection by the China Petroleum and Chemical Industry Electrical Products Explosion-proof Quality Supervision and Inspection Center, and obtained the corresponding explosion-proof certificate. It is also a multifunctional data collector, which fully meets the needs of users in data collection, positioning, site survey, inspection management, information release, task instructions, etc. The terminal equipment is powerful, easy to carry, and easy to use. It can complete inspection tasks, asset inventory tasks, and resource spatial data collection tasks at the same time, and send all collected data to the background computer system for processing through the GPRS module. When the GPRS network is normal, the terminal device can send the collected data information to the background processing by SMS; when the terminal moves to a remote area and there is no GPRS signal, the staff can store the collected data in the terminal device, or through The serial port is connected with the computer system to read the data directly.
2. System working mode
1) Initialization: First, the basic database of the line inspection system must be established, which can be obtained from the line management system. In order to achieve intelligence, it is also necessary to collect the coordinates of the geographic location of all equipment. In this process, the line patrol requires the terminal to go to each device and query the information of the current device, and the GPS module will automatically obtain the coordinates of the current location. And it can directly take pictures of the equipment through the terminal as a three-dimensional representation of the information. The RFID function of the terminal can verify the condition of the equipment with the background, which is more convenient, accurate and detailed to understand the overall information of the entire oil pipeline, and it is reflected on the map information. The whole initialization process is simple, only need the line inspector to inspect from beginning to end, the system will obtain the GPS geographic location data, device details and image information of all devices.
2) Daily inspections: the line inspectors will get the inspection work order communicated by the system before each work. When the mobile explosion-proof tablet computer arrives at the place to be inspected, as long as the machine is turned on, the intelligent line patrol system client program will automatically obtain the current position coordinates through the GPS module, and then compare it with the data in the local or intra-office database, and compare the data in front of you. The equipment file is displayed on the terminal screen. The line inspector can record the situation of the field line equipment in the handheld computer. At the same time, the system automatically activates the GPRS wireless network, and sends the location information and current time together with the on-site line condition records to the database in the bureau, and then enters the system database after being processed by the background inspection service program. If a GIS system is used in conjunction, the PDA can display electronic maps, conduct navigation, and guide inspection routes.
3) Asset inventory: The system can send inventory work orders to inspectors to complete asset inventory tasks during inspections. Smart terminals automatically complete equipment inventory, and according to the inventory list issued by the system, the inventory status can be grasped at the first time, and Send the data to the system via GPRS, and automatically generate a loss and profit report.
4) Strengthen management: Managers can set up task lists in advance to arrange daily inspection tasks, sequence, workload, route, etc. When the line inspector is working, the system automatically prompts the line inspector to the next inspection point according to the task list or preset settings. At the same time, the control center can monitor the work progress and inspection situation of the linemen at any time. In case of special circumstances, managers can conduct uninterrupted dispatch and command via wireless network. Real-time data transparency is maintained between the mobile terminal and the back-end system database to ensure the informationization of enterprise management and ensure the in-place rate of inspections.
5) In order to ensure availability, the system supports both online and offline working states. If the GPRS wireless network cannot be connected temporarily due to signal problems, the system will temporarily store the data locally. Once the wireless network is available, the data is sent automatically. In addition, the system also provides a backup USB/infrared data centralized transmission method for emergencies. When using the wireless network for some reason, the line inspector can place the terminal in front of the USB interface/infrared access device of the intelligent line inspection service system for synchronization.
3. System features
1) The acquisition terminal provides real-time geographic coordinates to the data center;-The data center can monitor its working status in real time;
2) Keep real-time online between the data center and the collection terminal, and provide a fully transparent transmission channel;-powerful information accurate positioning, real-time monitoring, and efficient scheduling functions;
3) Provide standard data interface, which can realize seamless connection with enterprise management information system and decision support system;
4) It can support multiple communication methods at the same time, including GSM short message, voice, GPRS; -Support multi-level architecture, multi-center cascade connection, distributed interconnection, support mobile center;
5) Support RFID function, which can complete the asset management and inventory of pipeline equipment, and can also grasp the detailed information of the equipment in real time; -Support camera function, real-time collection of pipeline equipment or surrounding facilities view information and send it to the computer system to improve the oil pipeline
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