Abstract: An electric submersible pump system can include a shaft; a power cable connector; an electric motor configured to receive power via the power cable connector for rotatably driving the shaft; a pump operatively coupled to the shaft; a power unit for generating power via rotation of the shaft; a remote unit that includes at least one sensor for sensing information, wireless transmission circuitry for wireless transmission of sensed information and a power interface to receive power generated by the power unit; and a base unit that includes wireless reception circuitry for receipt of wireless transmission of sensed information from the remote unit and wired transmission circuitry operatively coupled to the power cable connector. Various other apparatuses, systems, methods, etc., are also disclosed.

Abstract: An electric submersible pump system can include a shaft; a power cable connector; an electric motor configured to receive power via the power cable connector for rotatably driving the shaft; a pump operatively coupled to the shaft; a power unit for generating power via rotation of the shaft; a remote unit that includes at least one sensor for sensing information, wireless transmission circuitry for wireless transmission of sensed information and a power interface to receive power generated by the power unit; and a base unit that includes wireless reception circuitry for receipt of wireless transmission of sensed information from the remote unit and wired transmission circuitry operatively coupled to the power cable connector. Various other apparatuses, systems, methods, etc., are also disclosed.

Abstract: A seismic survey apparatus includes a plurality of serially connected electrical nodes; a power supply capable of supplying power to the electrical nodes and detecting a voltage leakage among the electrical nodes; and a software component capable of locating the leakage upon its detection. A method for use in seismic surveying includes powering a plurality of serially connected electrical nodes in a seismic surveying system; automatically detecting a voltage leakage among the electrical nodes on the power domain; and automatically locating the detected voltage leakage.

Abstract: Instrumentation for high reliability electric submersible pumps (ESPs) is provided. Comprehensive sensors placed throughout ESP components enable monitoring, analysis, and intervention to improve performance of ESP components and provide high reliability and long life for components. Example ESP sensors used to protectively monitor an ESP string may include electrical current leakage detectors, temperature sensors at the pothead, fiber optics used as distributed temperature sensors in the motor stator and windings of the motor, water cut sensors to determine quality of hydrocarbon being produced, tachometer and torque sensors to detect the speed of rotating shafts of the motors and pumps, temperature and vibration sensors for rotor bearings and thrust members, and wye-point imbalance detectors for balancing electrical loads on the three phases in a wye system. Interpretation and control modules analyze the sensor input and apply actions that improve performance and lengthen lifespan of components.