Research On The Long-distance Oil Well Monitor System

Recently, steeling the oil equipment is sometimes happened and takes the hidden trouble to the oil production. According to the problem of the oil-safety detecting technology, a long-distance oil well monitor system based on the principle of Mach-Zehnder fiber interferometer is introduced in this article. The advantages of this system are small volume, low energy and high speed. By detecting the signal of the vibration around the oil well, the system estimates whether there are abnormal situations around the oil well.According to the actuality of the oil well, the long-distance oil well monitor system is designed, and studied in the following aspects:1. The ways of the guard against theft and alarm system used now in the world are introduced. By contrasting the advantages and disadvantages of them, the way based on the principle of Mach-Zehnder fiber interferometer is selected to get the signal around the oil well in the long-distance oil well monitor system. This way has the advantages of anti-jamming, high reliability, easy realization..2. The constitute of the distributed fiber sensor system in the long-distance oil well monitor system is introduced, including the driving and protecting circuit of the lamp-house, the light-electricity conversion circuit, and the filter circuit.3. The DSP(Digital Signal Processor)is selected as the data-processing way in order to analyze the signal of the vibration got from the fiber sensor and send the result of the environment around the oil well through the GSM.4. The monitor center uses the Labview software to get the alarm from the oil wells and save the alarm.5. Some experiment of this system is done. Throughout the experiment, the system lines out the threshold of the alarm voltage.