Another Riser Management System Contract for Fugro

Fugro GEOS' Structural Monitoring Division has recently been awarded a contract by FMC Technologies to supply a Riser Management System for a completion/workover riser that FMC Technologies is supplying for Statoil's Gjoa field, offshore Norway.

Developed by Fugro and MCS, the market leaders in riser analysis and associated software the IRIS-RMS system is an integrated riser management system for drilling and C/WO risers that calculates a safe operating envelope using the unique MCS finite-element model of the riser.

The RMS consists of riser-mounted instrumentation, cables, and computer system running the MCS software. IRIS-RMS interfaces with vessel systems to collect key data to feed into the software's sophisticated finite element predictive model and associated simulation software. Riser-mounted strain and/or accelerometer packages are also typically installed. The system also includes modules to calculate and display the operating envelope and drift-off characteristics.

Not only does the system monitor and record riser loads during operation, it also displays hot-spot stresses within the riser and computes the top tension and tensioner/hook load tension split. It also tracks the fatigue life of each joint in the riser, and records and displays riser stresses during unexpected/unplanned incidents. IRIS-RMS warns if the riser is approaching its design capacity.