Systems and methods for initiating an emergency disconnect sequence (EDS) are provided. In an aspect, a disconnection system is provided and configured to initiate the EDS, and includes a controller including a processor and a memory operably coupled to the processor. The controller receives, from a set of motion reference units (MRU(s)) operably coupled to a flexible joint, position data generated by the set of motion references units and associated with the joint when the joint is operably coupled to and disposed between a drilling riser and a lower marine riser package (LMRP). The controller determines, based on the position data, an angular offset of the joint. The controller sends, to a subsea control pod disposed at or adjacent to the LMRP, a trigger signal in response to determining that the angular offset exceeds a predetermined threshold, such that the subsea control pod initiates the EDS.

A foundation for a subsea assembly is provided. The foundation includes connection points. The connection points permit other components to be connected to the foundation and permit loads to transfer from the other components into the foundation. The foundation may be a suction anchor. A method of converting an exploration well using the foundation to a production well is also provided.

A foundation for a subsea assembly is provided. The foundation includes connection points. The connection points permit other components to be connected to the foundation and permit loads to transfer from the other components into the foundation. The foundation may be a suction anchor. A method of converting an exploration well using the foundation to a production well is also provided.

A wet connect system including a connector housing, a wet connector disposed in a pocket of the housing, a washout window in the pocket and a washout outlet in the pocket, the washout outlet fluidly connected to a washout pathway, the pathway at least partially within the housing.

The invention relates to a subsea deployable installation and workover control system (IWOCS) skid (1) for connection to a subsea component (2), the skid (1) comprising: a wireless communication unit (3) for communication with a wireless communication unit (4) at a topside installation (10); a control system (69) for data storage and/or data filtering and transferring the filtered data to the wireless communication unit (3) and receiving data from the wireless communication unit (3); a self-contained fluid system comprising a fluid supply tank (5, 8), the fluid system being configured to be connected to a fluid connection on the subsea component such as to provide fluid to the subsea component (2); an electric power source (7) for supplying electric power to the communication unit (3) and the control system (69). It is further described a method of performing installation or workover operation(s) on a subsea component using an installation workover control system (IWOCS) skid.

A subsea wellhead assembly having an arrangement of primary well barriers provided in equipment that is located within the well and/or the wellhead housing is provided. The subsea wellhead assembly may include a tubing hanger positioned in or below a wellhead housing coupled to a subsea well, a tree cap fluidly coupled to the tubing hanger and disposed atop the wellhead housing, and a pair of master production valves configured to be selectively actuated from an open position to a closed position to shut in the subsea well, each of the pair of master production valves located within or below the wellhead housing.

A subsea wellhead assembly having an arrangement of primary well barriers provided in equipment that is located within the well and/or the wellhead housing is provided. The subsea wellhead assembly may include a tubing hanger positioned in or below a wellhead housing coupled to a subsea well, a tree cap fluidly coupled to the tubing hanger and disposed atop the wellhead housing, and a pair of master production valves configured to be selectively actuated from an open position to a closed position to shut in the subsea well, each of the pair of master production valves located within or below the wellhead housing.

In a hydraulic connector for connecting a portion of the hydraulic connector to a mandrel and having a seal ring with an external groove to seal between the hydraulic connector and the mandrel the method of providing a locking segments having an inner position and a radially outward second position, providing when the latches are in a first latch position a portion is engaged with the locking segments in the radially inward position and a second latch portion is disengaged from the external groove of the seal ring to release the seal ring, and providing when the one or more latches are in a second latch position the first latch portion is engaged with one or more of the locking segments in the radially outward position the second latch portion is engaged with the external groove of the seal ring to retain the seal ring.

In a hydraulic connector for connecting a portion of the hydraulic connector to a mandrel and having a seal ring with an external groove to seal between the hydraulic connector and the mandrel the method of providing a locking segments having an inner position and a radially outward second position, providing when the latches are in a first latch position a portion is engaged with the locking segments in the radially inward position and a second latch portion is disengaged from the external groove of the seal ring to release the seal ring, and providing when the one or more latches are in a second latch position the first latch portion is engaged with one or more of the locking segments in the radially outward position the second latch portion is engaged with the external groove of the seal ring to retain the seal ring.

A method and apparatus are disclosed for reducing flow induced vibration in at least one subsea structure. The method comprises the steps of, via at least one subsea acoustic sensor (190), detecting at least one characteristic associated with acoustic energy in sea water proximate to the sensor (190), responsive to the detected characteristic, varying at least one operational parameter of a fluid flowing along a fluid flow pathway associated with a pipe member (160).