System, apparatus, and method for monitoring a subsea flow device

摘要

A system, apparatus, and method are provided for monitoring a subsea flow device such as a subsea flowline. The apparatus generally includes a thermoelectric device that is adapted to generate electric power from a thermal potential between the subsea flow device and the surrounding seawater. A sensor that is powered by the thermoelectric device is adapted to monitor one or more characteristics of the flow device, such as temperature or strain, and provide a communication that is indicative of the characteristic. The communication may be a radiation output or an acoustic output.

主权项

1. A system for monitoring a subsea flowline, the system comprising a plurality of apparatuses disposed respectively at successive joints along a length of the subsea flowline wherein each of the plurality of apparatuses comprises:
a thermoelectric device adapted to generate electric power from a thermal potential between the subsea flowline and surrounding seawater; a sensor powered by the thermoelectric device and adapted to monitor at least one of a movement and a position of the subsea flowline and provide a radiation output representative of data that is indicative of at least one of the movement and the position of the subsea flowline; and a pipeline internal moving device for moving within the subsea flowline equipped with a plurality of receivers to receive communication of the radiation output from the sensors of the plurality of apparatuses.