Investigation of Intermittent Loss of Electrical Integrity in Subsea Control System

Abstract

The project under consideration witnesses IR (Insulation Resistance) degradation on reconnecting the subsea system to the FPSO (Floating Production Storage and Offloading) after a prolonged period of disconnection. The IR of the system eventually regains its expected value after some time interval. The present research investigates the causes of IR degradation and the possible mechanisms behind IR recovery after system startup. The prime focus of this work is on the umbilical utilized in the field.