Abstract
The water content of crude oil is an important parameter in the process of oil exploitation. Measuring the water content of crude oil in real time and accurately can effectively evaluate the production status and productivity of oil wells. According to the characteristics that the dielectric constants of oil and water media are greatly different and the high-frequency electromagnetic signal is sensitive to the dielectric constant, according to the designed antenna structure and measurement circuit, and the characteristics that the dielectric constant of water is affected by temperature, the frequency of excitation signal is optimized, and the temperature detection circuit is added. Through the repeated experiment on the water content of crude oil, the measurement error of water content is calibrated, A high-precision RF crude oil moisture content measuring instrument has been formed. It is verified through the built system experiment platform that the system has the advantages of low power consumption, strong real-time performance, low cost and strong reliability. It has great production guiding significance and value for the optimization of oilfield production and the realization of intelligent well completion.
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