Patent ID: 7770651

Claim:
A submersible process environment for sub-sea processing comprising: a modular encapsulated unit having an interior volume and a processing unit disposed therein, wherein the interior volume contains a first blanket gas to provide a controlled processing environment; a first safety valve circuit in fluid communication with the processing unit, comprising: a first valve; and a second valve in fluid communication with the first valve, wherein if one of the first and second valves fails open, the other one of the first and second valves will act as backup, such that the first safety valve circuit fails closed; and a second safety valve circuit in fluid communication with the processing unit, wherein at least one of the first safety valve circuit and the second safety valve circuit is disposed on an exterior of the encapsulated unit, wherein the second safety valve circuit comprises: a third valve; and a fourth valve in fluid communication with the third valve, wherein if one of the third and fourth valves fails open, the other one of the third and fourth valves will act as backup, such that the second safety valve circuit fails closed, wherein at least one of the first safety valve circuit and the second safety valve circuit is disposed within a closed housing containing a second blanket gas to provide a controlled environment therein.