Abstract
Aiming at the different characteristics of different reservoirs between oil wells, this paper studied and designed a layered underground oil recovery data acquisition system based on ARM Cortex-A7 architecture. This system mainly consists of three parts, namely sensor, measurement circuit and data acquisition and processing. I.mx6ull is selected as the main control chip, and a data acquisition platform is built with the peripheral device AD8229 instrument amplifier. The SPI protocol and state machine are used to communicate with the downhole multi-reservoir data, and ESP8266 module is used to transmit the downhole multi-parameter data to the Alibaba Cloud server. Through the software and hardware experiment system test, it shows that the designed system has the characteristics of good real-time performance, high precision and low cost.
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