Pipe cutting apparatuses and related methods

摘要

Some embodiments of the present subsea pipe cutting apparatuses use or include a frame, one or more water jet nozzles coupled to the frame and configured to apply pressurized fluid to a pipe to cut the pipe, and one or more of: a flange configured to secure the subsea pipe cutting apparatus relative to a blowout preventer stack, one or more water jet nozzles coupled to a rotating portion of the frame and configured to rotate about the pipe, one or more water jet nozzles movable between a retracted state and a deployed state in which the one or more water jet nozzles are radially closer to the pipe than when in the retracted state, one or more water jet nozzles pivotally coupled to the frame and configured to pivot while applying pressurized fluid to a surface of the pipe, and two or more water jet nozzles.

主权项

1. A pipe cutting apparatus for use in a blowout preventer stack, the pipe cutting apparatus comprising:
a frame comprising a stationary portion defining an interior volume and a rotatable portion disposed within the interior volume; a flange configured to secure the stationary portion of the frame relative to a blowout preventer stack; and one or more water jet nozzles coupled to the rotatable portion of the frame and configured to apply pressurized fluid to a pipe to cut the pipe, where the one or more water jet nozzles are movable between a retracted state and a deployed state in which the one or more water jet nozzles are radially closer to the pipe than when in the retracted state.