System and method for fail-safe disconnect from a subsea well

Details System and method for fail-safe disconnect from a subsea well System and method for fail-safe disconnect from a subsea well

2007-07-10

2007-07-10

Beach, Thomas A (Department: 3671)

Wells

Submerged well

Connection or disconnection of submerged members remotely...

C166S352000, C166S364000

Reexamination Certificate

active

11042438

ABSTRACT:
A system and method for controllably separating a conduit into an upper portion and a lower portion. The system includes a first valve in the upper portion of the conduit above a point of separation, and a second valve in the lower portion of the conduit below the point of separation. When the conduit is separated, the valves are actuated to cease flow therethrough and prevent loss of fluids into the seawater. A hang-off tool in the lower portion of the conduit engages the well and supports the lower portion of the conduit.

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