Research Of Oil Well Operating Mode Data Acquisition System Based On PC_Based PLC

The system of oil well operating mode data acquisition based on the PC_Based PLC is composed by the lower position scheme according to gathering, the GPRS network transmission and on the position scheme according to receives three parts. Gathers partially will be located the oil well job site, by PC overhead construction programmable controller ADAM-5510M (E) (lower position machine) took the field data center, will pull out the oil well the operating mode information (load, displacement, electric current, voltage and so on) carries on real-time gathering, processing, the memory and the transmission. Transmits partially the communications channel which provides by China mobile with the aid of the GPRS wireless grouping exchange technology, realizes the data transparently to retransmit. Receives (on position machine) to be located the oil field data central partially, by the data receive server constitution, realizes the oil well wheel to inquire the data request, the communication link link and the maintenance and so on, and will receive the data according to will assign the form to store the database. This system mainly gains the pumping unit merit chart and the operating mode parameter change trend curve for the oil field correlation department provides the data. The merit chart is pumping unit the closed curve which flushes in the order the load, the electric current and the displacement forms, is judges the pumping unit working mode active status and the fat liquor reserves important reference. The merit chart closed and flushes in the order the load, the electric current, moves three parameters the gathering synchronizations, the correct transmission is this system key point and the difficulty. PC overhead construction programmable controller ADAM-5510M (E) and the GPRS network integration and the merit chart in ADAM-5510M (E) the center wrapped gift technology and the oil pump equivalent dynamometer card transformation method are this system innovation place. The data receive server inquires ADAM-5510M(E) from the drive wheel, on the position machine and between the lower position machine uses the TCP agreement to carry on the correspondence, guarantees the data transmission the security to be reliable. This research results obtained the successful application in Liaohe River oil field based in the WEB oil well operating mode gathering issue system.