West Elara – CRI

NAVIC engineers carried out a feasibility study and basic design for the modification of the West Elara drilling platform owned by North Atlantic Drilling. The aim of the project was to prepare the unit for P&A (Plug and Abandon) operations in the North Sea.

The modifications ordered included the following systems:
• Installation of new shale shakers to implement a LCM (lost circulation material) recovery system.
• Installation of a drilling fluid centrifuge to improve the parameters of the drilling fluids in active circulation.
• Installation of a cement foam system to enable cementing in geothermal wells.
• Installation of additional winches in the “Moon Pool” area.
• Analysis of the layout of the MPD (Managed Pressure Drilling) system supplied by M-I Swaco – Schlumberger.
• Installation of a new cement discharge line from the drilling rig to the sea.
• Modification of the existing CRI system (cuttings reinjection system).
• Installation of a SWARF unit for removing metal cuttings from drilling mud.
• Installation of access platforms.
• Installation of a new rescue sleeve adapted to the increased platform height.