US 5,398,761 A · Subsea blowout preventer modular control pod

Abstract

A modular subsea control pod assembly having a retrievable pod assembly and a receptacle assembly. The retrievable pod assembly has a stab block and at least one function port having an opening in the stab block. The retrievable pod assembly includes a pod gate which is adapted to move between a first position in which the pod gate covers the function port opening and a second position in which the pod gate does not cover the function port opening. The receptacle assembly includes a receptacle base module adapted to receive the stab block and a receptacle function port adapted to be connected to a blowout preventer hydraulic operator. The receptacle assembly includes a receptacle gate which is adapted to move between a first position in which the receptacle gate covers the receptacle function port opening and a second position in which the receptacle gate does not cover the receptacle function port opening. Seal assemblies are provided to operate with the pod gates and the receptacle gates to seal the function and receptacle function ports against the intrusion of saltwater.

Claims10

Dependent claims

A subsea control pod assembly comprising:

a retrievable pod assembly having a stab block with an exterior surface and at least one function port having a first opening in said exterior surface of said stab block;
first means for releasably sealing the function port, said first means for releasably sealing mounted external of the function port;
a receptacle assembly having a receptacle base module adapted to receive said stab block, said receptacle base module having an outer surface and a receptacle function port having a first opening in said outer surface, the receptacle function port adapted to be connected to a blowout preventer hydraulic operator;
and
second means for releasably sealing the receptacle function port, said second means for releasably sealing mounted external of the receptacle function port,
wherein the function port aligns with the receptacle function port when said stab block is received by said receptacle base module and said first and second means for releasably sealing the function port and the receptacle function port, respectively, operate to externally cover the respective first openings of the function port and the receptacle function port when said stab block is not received in said receptacle base module.

3 more elements

A modular subsea control pod assembly comprising:

a retrievable pod assembly including a plurality of modular units, said modular units comprising:
a modular stab block and at least one function port;
a modular manifold feeder block adapted to be mounted to said modular stab block;
a modular valve pocket adapted to be mounted to said modular manifold feeder block;
and
means for connecting adjacent said modular units;
first means for releasably sealing the function port;
a receptacle assembly having a modular receptacle base module adapted to receive said modular stab block, said receptacle assembly including a receptacle function port adapted to be connected to a blowout preventer hydraulic operator;
and
second means for releasably sealing the receptacle function port,
wherein the function port aligns with the receptacle function port when said modular stab block is received by said modular receptacle base module and said first and second means for releasably sealing the function port and the receptacle function port, respectively, operate to cover the respective ports when said modular stab block is not received in said modular receptacle base module.

8 more elements

Dependencies are inferred from the claim text.

Subsea blowout preventer modular control pod

Life of this patent

Subsea blowout preventer modular control pod

Life of this patent

Abstract

Claims10