Design and Testing of Multi-parameter Sensory Monitoring System for Oil and Gas Downhole Wells
A downhole intelligent monitoring system was designed to obtain the key parameters of oil and gas wells.The sys-tem used PIC18F67K22 as the main control chip and integrated five monitoring modules including temperature,pressure,dis-placement,water content,acceleration sensor,and power module.At the same time,the communication protocol was formulated,the relevant parameters were configured,and QT creator was used to develop the upper computer,which built a complete commu-nication system between the host computer and the acquisition system,and the real-time multi-parameter acquisition and monito-ring was realized.By simulating high temperature and high-pressure multi-parameter change experiments and testing environment real-time change curve,the real-time,stability and accuracy of the monitoring system were verified,and the results indicate that it can meet the actual needs,providing a reliable solution for the intellectualization of oil and gas well tools.
intelligent monitoringPIC microcontrollercircuit designModBus communication protocolsignal acquisition
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