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- W2229952175 abstract "Abstract In gas-lifted oil wells the monitoring of downhole pressure plays an important role. However, the permanent downhole gauge (PDG) sensor often fails. Because maintenance or replacement of PDGs is usually unfeasible, soft-sensors are promising alternatives to monitor the downhole pressure in the case of sensor failure. In this paper, a data-driven soft-sensor is implemented to estimate the downhole pressure using committee machines composed by finite impulse response (FIR) neural networks. Experimental results in three real datasets of the same oil well indicate that the identified soft-sensor is able to predict the downhole pressure with satisfactory accuracy. The model input variables were selected by statistical tests which increased insight concerning such variables. Committee machines outperformed single-model soft-sensors on experimental data." @default.
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- W2229952175 date "2015-01-01" @default.
- W2229952175 modified "2023-09-26" @default.
- W2229952175 title "Downhole Pressure Estimation Using Committee Machines and Neural Networks" @default.
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- W2229952175 doi "https://doi.org/10.1016/j.ifacol.2015.08.045" @default.
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