Abstract: A virtual sensor system includes one or more electric submersible pumping systems deployed in a reservoir and a computer system that receives data from the one or more electric submersible pumping systems. Field data is provided to computerized statistical models for predicting whether individual electric submersible pumping systems and the reservoir have undergone changes in condition. The statistical models are established with reference data obtained by running electric submersible pumping systems of known working condition in test wells under a variety of controlled conditions.

Abstract: A virtual sensor system includes one or more electric submersible pumping systems deployed in a reservoir and a computer system that receives data from the one or more electric submersible pumping systems. Field data is provided to computerized statistical models for predicting whether individual electric submersible pumping systems and the reservoir have undergone changes in condition. The statistical models are established with reference data obtained by running electric submersible pumping systems of known working condition in test wells under a variety of controlled conditions.

Abstract: A method includes receiving sensor data from one or more combustors of a turbomachine, wherein the received sensor data includes a plurality of frequency signal amplitudes over a sample period, the one or more combustors disposed downstream of a compressor of the turbomachine, and the compressor includes a compressor stage with a plurality of blades disposed about the compressor stage. The process then identifies first harmonic frequencies of a first blade pass frequency of the plurality of compressor blades from the received sensor data, wherein the first blade pass frequency is based at least in part on a first quantity of the plurality of blades disposed about the compressor stage and a rotational speed of the compressor stage. The process then determines whether one or more of the plurality of frequency signal amplitudes corresponding to the identified first harmonic frequencies exceeds a first threshold value.