The digital oilfield system is a new technology that has emerged in recent years with the rapid development of information technology, the sharp increase in oil demand and the gradual deepening of economic information globalization. A digital oil field is a virtual representation of an oil field. It can gather the natural and human information of the oil field, and people can explore and interact with the virtual body. The digitalized oilfield system is the concrete realization of the digitalized oilfield. Its contents include geological exploration, oil and gas field development, storage and transportation sales, oilfield management, etc. It is the digitization of the oilfield exploration and development research process; the digitalization of the oilfield management process (ERP).
Internet of Things Overview
The Internet of Things (The Internet of things) is an important part of the new generation of information technology. It uses radio frequency identification (RFID), infrared sensors, global positioning systems, laser scanners and other information sensing equipment to connect any object to the Internet according to the agreed protocol for information exchange and communication to achieve the object A network for intelligent identification, location, tracking, monitoring and management. The Internet of Things is regarded as the application development of the Internet. Application innovation is the core of the development of the Internet of Things. Innovation 2.0, which takes the user experience as the core, is the soul of the development of the Internet of Things.
The Internet of Things (Internet of Things) refers to the Ubiquitous end devices (FaciliTIes), including sensors with "intrinsic intelligence", mobile terminals, industrial systems, building control systems, home intelligence Facilities, video surveillance systems, etc., and "externally enabled" (Enabled), such as various assets (Assets) with RFID attached, individuals and vehicles with wireless terminals, etc. "Intelligent objects or animals" or "intelligence" "Dust" (Mote), through various wireless and / or wired long-distance and / or short-distance communication networks to achieve interconnection (M2M), application integration (Grand IntegraTIon), and cloud-based SaaS operations, etc. In the Intranet, Extranet, and / or Internet environments, appropriate information security mechanisms are adopted to provide safe, controllable and even personalized real-time online monitoring, location traceability, alarm linkage, dispatch command , Plan management, remote control, security precautions, remote maintenance, online upgrades, statistical reports, decision support, leadership desktop (Cockp centralized display it Dashboard) and other management and service functions to realize the integration of "management, control and operation" of "all things" with "efficiency, energy saving, safety and environmental protection".
The Internet of Things fully uses the new generation of IT technology in various industries, specifically, embeds and equips sensors in power grids, railways, bridges, tunnels, highways, buildings, water supply systems, dams, oil and gas pipelines, etc. In this kind of object, then integrate the "Internet of Things" with the existing Internet to achieve the integration of human society and physical systems. In this integrated network, there is a super powerful central computer group that can manage the personnel in the integrated network. , Machines, equipment and infrastructure implement real-time management and control. On this basis, human beings can manage production and life in a more refined and dynamic manner to achieve a "smart" state, improve resource utilization and productivity levels, and improve human and The relationship between nature.
Using Internet of Things Technology to Build a Digital Oil Field
A digital oil field is a virtual representation of an actual oil field. It can gather natural and humanistic information of the oil field, and people can explore and interact with the virtual body. Oilfield production information is closely related to geographic information. Through information and infrastructure construction, the company's ability to obtain timely and rapid response to various external key information is improved. At the same time, through enterprise informationization and digital oilfield construction, it improves regional internal information communication and data integration. ability. The core of the digital oil field is to establish a data and information asset sharing mechanism and management system for oil companies. On the basis of information sharing, it aims to establish multiple specialties for various production links such as oil exploration, development, ground construction, storage and transportation sales, and enterprise management. Integrated data system, and highly integrated with various professional application systems. Based on the establishment of an optimized application model for oilfield production and management processes, virtual reality technology is used to visualize and multi-dimensionally express data, and intelligent analysis models provide a good information support environment for business management. The digital oilfield based on the Internet of Things technology is specially developed for the information management of oilfield exploration and development to meet the needs of daily oilfield production and operation, production management, production monitoring, equipment management, and achievement display. It is a set of oil exploration and development production information. The collection, transmission, storage, processing, analysis, release, management and application of the integrated, standardized, unified, safe and efficient new modern production and management integrated data in one management application platform.
With the support of the Internet of Things technology, the "digital oil field" refers to the oil field production and manufacturing sites such as seismic areas, well sites, stations and warehouses as the source of data collection; automatic data collection equipment (such as sensors) is used through local optical fiber network, GPRS / CDMA, microwave communication network and other transmission means collect massive data such as seismic data, downhole measured stratum and wellbore data, wellhead measurement equipment operation and fluid property data into the data warehouse of the information management center in real time; follow scientific processes such as data model The organization and management of data, on this basis, integrate knowledge through a large number of business models, through the application of intelligent identification, data fusion, mobile computing, cloud computing and other technologies, to support scientific research and online research such as comprehensive petroleum geology research and reservoir analysis Simulation, complete real-time diagnosis of production, and the results of scientific research support the comprehensive decision of oilfield production, and the decision information is fed back to the manufacturing site to complete environmental monitoring, unit integration, process simulation, parameter optimization, and control. The use of Internet of Things technology to build a digital oil field can not only achieve cross-regional collaborative work, closely connect all links of production and operation, but also realize the integration of oil field business and technology, oil field data integration, oil field status automatic monitoring and comprehensive informationization of ground construction. At the same time, a virtual digital geological model can be established to realize visualization and interactivity of reservoir description.
Application Example of Internet of Things--Oil and Water Well Production Remote Monitoring Analysis and Optimization System
The oil well production remote monitoring, analysis and optimization system remotely collects oil well work diagram, pressure, temperature, current, power, torque and other data through the network to realize real-time diagnosis of oil well production conditions; remote real-time liquid production measurement; electricity consumption measurement and energy consumption Analysis; application of torque method, electric energy method, power curve method, etc. to calculate and adjust pumping unit balance; optimization design of oil well working parameters based on diagnosis; release of expert solutions based on diagnosis and optimization design results; Process parameter design results, real-time remote real-time "large closed-loop" intelligent control of the oil well, as shown in Figure 1. The remote monitoring, analysis and optimization system for the production of water injection wells collects data such as pressure and flow of the water injection wells through the network remotely. According to the water distribution requirements of the water injection wells, it compares the current flow with the injection volume and uses PID algorithm to automatically adjust the valve opening. At the same time, the real-time flow data, cumulative flow data and various pressure data are transmitted to the RTU, and the data is transmitted to the intranet computing server of the oilfield enterprise using the CDMA \ GPRS network. The working condition analysis and optimization server performs data statistics such as over-limit alarm, water injection calculation, reports, curves, and graphs on the data collected by the field monitoring terminal; working condition analysis; parameter optimization design, etc. According to the authority and management scope set by the system, the Web publishing system can conduct customized query, statistics and display of the wells under management. The system makes the water injection equipment have five functions of "computing, network communication, precise control, remote collaboration and autonomy" of the Internet of Things.
Since 2005, Dagang Oilfield has carried out tests, demonstrations, and comprehensive promotion. By the end of 2009, a total of more than 2,000 oil and water well production remote monitoring, analysis and optimization systems have been implemented, realizing real-time acquisition, real-time calculation, real-time diagnosis, real-time optimization, and real-time production of oil and water wells. The release and real-time control have effectively promoted the development of oilfield automation, informatization, and digitization. In 2007, it was established as the "Hong Kong West Model." The "Hong Kong West Model" provided a model for the construction of new projects in the petroleum Internet of Things. The core technology of "Hong Kong West Model" is a set of data collection technology based on automation technology, computer technology, network technology, system engineering technology and oil and gas field development expertise, with the purpose of improving oilfield digitization, oil well output, system efficiency, and simplifying surface processes. Expert system for acquisition, data management, production dynamic prediction, engineering analysis, remote measurement, oil well fault diagnosis, system efficiency and loss composition, optimized design, measure plan release, and intelligent control are all in one. This technology conforms to the definition of the Internet of Things. Broadly speaking, it is a controllable, trusted, and scalable networked physical device system that deeply integrates computing, communication, and control capabilities on the basis of environmental perception. It passes the computing process and physical The feedback loop in which processes interact affects deep integration and real-time interaction to add or expand new functions, and monitor or control a physical entity in a safe, reliable, efficient, and real-time manner.
The simplified model of Dagang Oilfield and Gangxi Oilfield, let the metering station, water distribution room and traditional three-stage layout station withdraw from the historical stage, get rid of the idea of ​​"surface technology adjustment around the built field station transfer" and form to meet the needs of reservoir development It is a typical application case of the Internet of Things technology, which opens up a new way for oil and gas production. The "Hong Kong West Model" has important guiding significance for creating a conservation-minded enterprise and realizing the efficient development of old oil fields.
Application prospects and prospects
As a new technology, the Petroleum Internet of Things will also be gradually applied to oilfield production practice. The construction of digital oilfields based on the Internet of Things technology has very broad application prospects in fields such as oilfield data collection, remote monitoring, material management, and comprehensive information on the ground. It can not only achieve cross-regional collaborative work, and closely connect all aspects of production. Realize the integration of oilfield business and technology, further optimize oilfield production and operation management, and broaden oilfield exploration and development business. The use of Internet of Things technology to build a digital oilfield is an effective way for oilfield information construction. With the deepening of oilfield exploration and development, the rapid development of information collection and intelligent computing technology, the widespread application of the Internet and mobile communication networks, and the continuous deepening of the integration with the sensor network, the opportunity for large-scale use of the Internet of Things in oilfields has become increasingly mature.
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The figures stated in the catalog specifications are based on use at ordinary room temperature catalog specifications re based on use at ordinary room temperature (approximately20~25℃.
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Storage temperature range:
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Service life:
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â—Use with a load that exceeds the rated torque
â—Frequent starting
â—Momentary reversals of turning direction
â—Impact loads
â—Long-term continuous operation
â—Forced turning using the output shaft
â—Use in which the permitted overhang load or the permitted thrust load is exceeded
â—A pulse drive ,e.g.,a short break,counter electromotive force,PWM control
â—Use of a voltage that is nonstandard as regards the rated voltage
â—Use outside the prescribed temperature or relative-humidity range,or in a special environment.
â—Please consult with us about these or any other conditions of use that may apply,so that we can be sure that you select the most appropriate model.
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