Design Of Remote On-line Monitoring System Of Oil Extractor Based On Wireless VPN Technology

Mechanical recovery is the basic means to extract crude oil from oil mines in our country and many countries of the world. Oil pumping unit is the main oil field equipment used currently. Beam pumping unit is the oldest, the most widely used type. Improving this type of recovery work efficiency, making its operation normally is the basic guarantee to increase oil production. At present, most oilfield use the way that is artificially inspection of beam pumping unit to overhaul and do maintenance. This kind of means can't monitor operation state of the pumping unit, also cannot discover the oil fault condition of the unit in time. It brings hidden trouble to production safety. Along with the development of computer communication technology in industrial production and application scope expanding, making the automation of oilfield production is higher and higher, beam pumping unit monitoring system can monitor operation state of pumping unit. It is real-time and automatic. It can discover abnormalities timely and makes staff processing conveniently. Monitoring system of communication means has multiple choices, GPRS transmission has high rate, has wide geographical coverage online, has forever advantages. It is very suitable for collecting data collection of regional scattered. But, GPRS communication uses public transmission channel, the security of data transmission is not strong, data may be intercepted and destructed. VPN technology could be a solution to this problem, its data encryption technology can protect the data transmission safety. System monitoring center usually uses software programming to realize various monitoring function. However, the development of software programming is difficult, and development cost is high. Its universality is poor. It is not easy for extension. Configuration software is also called configuration monitoring software. It points to specialized software to do data acquisition and process control. It is a tool that can develop industrial automation control systems rapidly. Configuration software, compared with the traditional programming software has strong adaptability. It has openness. It is easy to expand. It is economic. It has short development cycle. It is the ideal monitoring center software. KINGVIEW is one of the configuration software that is mature and domestic. It uses various tools built-in to finish all kinds of complex monitoring system functions. So it can achieve the real-time monitoring beam pumping unit of its running state.This paper analyzes the variation rules and pumping unit operation conditions which affect the safety operation. This paper Select a suitable data acquisition device PLC to collect necessary information fast and comprehensively. GPRS technology combined with VPN technology for pumping monitoring system provides perfect transmission channel for the data transmission. This paper designs a set of management software based on PC. It achieves remote monitoring of damping-displacement figure. It uses KINGVIEW to monitor parameters of pumping unit. It achieve remote monitoring management functions completely.