The subsea containment assembly is designed to contain a well-control incident by connecting and creating a seal to prevent oil leaks. It can also be used in a cap-and-flow plan to direct fluid to vessels on the surface. The technology works under pressures as high as 15,000 psi.
The equipment was delivered to the Marine Well Containment Co. base in Ingleside, Texas. It weighs 170 tons and consists of a stack of adapters and connectors assembled on a steel base.