Riserless open-water abandonment module

Developed through the Subsea Services Alliance with Helix Energy Solutions, the riserless open-water abandonment module (ROAM) is an environmentally friendly tubing removal in open water solution. When run as a complement to the intervention riser system (IRS) or subsea intervention lubricator (SIL), ROAM enable the ability to capture contaminants or gas within the system and circulate them back to the safe handling systems on board the vessel.

The 18 3/4-in fullbore ID enables pulling tubing hangers through the ROAM to the surface. ROAM has two barriers capable of shearing and sealing landing strings and production tubing that will pass through the system during recovery. ROAM also provides an additional barrier on the well when running current technology into the well to perforate and inject or circulate cement.

Riserless Open-Water Abandonment Module
Maximum bore diameter 18 3/4 in; 2-in circulation line
Maximum working pressure 10,000 psi [68.9 MPa]
Maximum working depth 10,000 ft [3,000 m]
Hydraulics operating pressure 3,000 psi [20.7 MPa]; 5,000-psi [34.5-MPa] subsea accumulation
Weight 250,000 lbm [113,000 kg]
Well barrier type One 10,000-psi annular BOP
Two 10,000-psi DVS rams
Two 10,000-psi 2-in fail-as-is valves