Gulf of Mexico Operator Automates Riser Annulus Monitoring

A Tier 1 Gulf of Mexico operator approached Flexlife to provide a permanent real-time vent gas monitoring system to assist with maintaining the integrity and safe operation of their flexible risers. Flexlife designed a tailor-made FlexSentinel® system to comply with the operator’s specifications. The operator placed an order for three of these systems to monitor two flexible risers each on three platforms. The system provides vent gas flow, pressure and temperature data is used to almost instantaneously detect the occurrence of anomalies such as a blockage in the venting system and a breach in the riser outer sheath.

The deployment of the FlexSentinel® Vent Gas Monitoring System thus allows operators to detect such anomalies and carry out relatively cheap and efficient repairs before these anomalies grow into more serious and more expensive failure modes.
Flexlife offers a turnkey solution, providing tailor-made designs, purchase of components, fabrication and FAT, and also offshore baseline annulus testing of the risers and commissioning of the FlexSentinel® Vent Gas Monitoring System.
Following the installation of the original three FlexSentinels® last year, the operator has recently ordered a new FlexSentinel® to monitor two new flexible risers being tied-back to another platform.

Vent Gas Monitoring System Protects Riser from Annulus Over-pressurisation