Subsea connection system for connecting a hot stab of a flowline to a subsea structure
AssigneeTrendsetter Engineering, Inc.
InventorsPatrick Michael CARGOL, JR., Mario R. LUGO
Life of this patent
Estimating the term…
Abstract
A subsea connection system has a subsea structure with a flow channel therein and a port at one end of the flow channel, a stab having a flowline connected thereto, and a frame affixed to the stab. The stab is adapted to engage the port of the subsea structure so as to allow a fluid to flow from the flowline into the flow channel. The frame has a hook portion that is engageable with a tool hanger of the subsea structure so as to support the stab in alignment with the port. The frame is pivotable about the tool hanger so as to move the stab toward the port. An actuator is cooperative with the stab so as to move the stab between a retracted position and an extended position.
Claims20
A subsea connection system comprising:
- a subsea structure having a flow channel therein, said flow channel having a port adjacent one end thereof, said subsea structure having a tool hanger positioned on an outer surface thereof adjacent said port, said tool hanger extending longitudinally outwardly beyond an end of said port;
- a stab having a flowline connected thereto, said stab adapted to engage said port of said subsea structure so as to allow a fluid to flow from said flowline into said flow channel of said subsea structure;
- a frame affixed to said stab, said frame being a fixed structure, said frame having a fixed hook portion that is engageable with said tool hanger of said subsea structure so as to support said stab in horizontal alignment with said port of said flow channel, said fixed hook portion positioned above said frame and positioned longitudinally outwardly beyond an end of said frame, said fixed hook portion being pivotable around said tool hanger so as to move said stab into horizontal alignment with said port;
- and
- an actuator cooperative with said stab so as to move said stab interior of said frame between a retracted position and an extended position, the extended position connecting said stab to said port.
(canceled)
A method of connecting a stab to a port of a flow channel of a subsea structure, the stab being received interior of a frame, the frame having a fixed hook positioned longitudinally outwardly beyond an end of said frame, the frame being a fixed structure, the stab having a flowline connected thereto, the subsea structure having a tool hanger extending longitudinally outwardly beyond the port, the method comprising:
- lowering the frame and the stab toward the subsea structure;
- moving the frame so that the fixed hook engages the tool hanger;
- pivoting the fixed hook around the tool hanger such that the stab is in horizontal alignment with and in proximity to the port of the subsea structure;
- and
- actuating the stab within the frame so that the stab moves horizontally from a retracted position to an extended position relative to the fixed structure of the frame so as to establish a fluid connection between the flowline and the flow channel.
(canceled)
Dependencies are inferred from the claim text.