Patent ID: 9602045
Date: 2017-03-21
CPC Classifications: E21B,F17D,H02S,Y02E

Claim:
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.