Abstract: A process for installing or removing a subsea structure in a non-vertical manner at a well includes securing a plurality of barges together in a linear formation in which one of the plurality of barges has a downline extending therefrom, connecting an end of the barges to a primary vessel, moving the primary vessel such that one of the barges is positioned over a target at or adjacent to the well, connecting a plurality of secondary vessels by plurality of mooring lines to an opposite end of the barges, tensioning the mooring line so as to fix the opposite end of the barges, positioning a deployment vessel away from the barges, deploying an ROV, manipulating the ROV so as to connect the subsea structure to the downline, and moving the downline and the subsea structure toward or away from the well.

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.

Abstract: A method and apparatus for transporting a capping stack for use in a subsea structure includes a capping stack having a capping stack spool, a connector body connectable to the capping stack spool and at least one diverter leg connectable to the capping stack spool. A first skid receives the capping stack spool on a floor thereof. A second skid receives the connector body on a floor thereof. A third skid receives the diverter leg thereon. The first, second and third skids are adapted to be received within an interior of an aircraft. The skids and the connected components can then be flown by the aircraft to a desired location so as to be assembled at a location near a wellhead.

Abstract: A process for killing a well includes drilling a first relief well and a second relief well toward the well, affixing a first relief well injection spool to the first relief well and affixing a second relief well injection spool to the second relief well, connecting a flowline to a flow channel of the first and second relief well injection spools, connecting a pipe to the first relief well injection spool so as to extend to a surface location, connecting a second pipe to the second relief well injection spool so as to extend to another surface location, and flowing a kill fluid through the second pipe such that the kill fluid flows through the flowline and into the flow channel of the first relief well injection spool so as to pass into the first relief well and into the well.

Abstract: A process for removing hydrate formations from a flowline includes connecting a manifold to the flowline, passing an inert gas across a pair of inlets of the manifold so as to create a reduced pressure across the pair of inlets that is less than a pressure of a fluid in the flowline, opening a valve between the pair of inlets and the flowline so as to expose the pressurized fluid in the flowline to the reduced pressure across the pair of inlets, disassociating hydrates in the flowline by exposure to the reduced pressure across the pair of inlets, and flowing the fluid and the disassociated hydrates from the flowline into the outlet of the manifold and outwardly of the manifold through at least one of the pair of inlets.

Abstract: A subsea connection system for connecting to a hub has a body with an interior passageway, a collet having a plurality of collet segments, an outer sleeve overlying the collet, and a poppet valve assembly positioned within the interior passageway of the body. The plurality of collet segments are movable between a locked position and an unlocked position. The poppet valve assembly is movable between an open position and a closed position in which the open position allows a fluid to flow through the interior passageway and the closed position blocks a flow of fluid through the interior passageway. The outer sleeve is movable so as to cause the plurality of collet segments to join to a hub.

Abstract: A gasket for use with flanges has an annular member formed of a metallic material. The annular member has a cross-sectional profile with a body portion having an end surface, a first side, a second side, and a T-shaped portion extending from the body portion. The T-shaped portion of the body portion defines a pair of annular grooves on opposite sides of the annular member. The T-shaped portion has a central portion connected to the body portion and a head portion at an end of the central portion opposite the body portion. The central portion of the T-shaped portion has a weep hole extending therethrough. The weep hole has opposite ends opening respectively to the pair of annular grooves.

Abstract: A subsea blooming system and method of deploying a subsea blooming system includes a first buoyant module, a first line extending downwardly from the first buoyant module, a first ballast module affixed adjacent an end of the first line, at least one boom translatably connected to the first line, and a variable buoyant module cooperative with the boom. The first buoyant module is positively and non-variably buoyant. The first ballast module is negatively and non-variably buoyant. The boom includes a plurality of booms that are connected in end-to-end relationship in a desired array.

Abstract: A relief well injection spool for use in killing a well has a body with a pair of inlets opening to a bore on an interior of the body, a ram body cooperative with the bore of the body so as to selectively open and close the bore, an upper connector affixed to the body and adapted to connect the body to a lower end of a blowout preventer, and a wellhead connector affixed to a lower end of the body. Each of the pair of inlets has a valve cooperative therewith. The upper connector opens to the bore of the body. The wellhead connector is adapted to connect to a relief well wellhead. The wellhead connector also opens to the bore of the body. A floating vessel can be provided so as to deliver a kill fluid into at least one of the pair of inlets.

Abstract: A subsea connector system having ejection capability has a first connector with a flange extending radially outwardly therefrom and a second connector. The second connector has a hub, a housing extending around the hub, and an actuator mounted on or in the housing. The actuator is movable between an extended position and a retracted position. The actuator bears on the flange of the first connector when in the extended position so as to allow the second connector to be disengaged from the first connector. The first connector is a plurality of collet segments engageable with the hub of the second connector. The actuator causes the plurality of collet segments to separate from the hub when the actuator is in the extended position.

Abstract: A gasket for use with flanges has an annular member formed of a metallic material. The annular member has a cross-sectional profile with a body portion having an end surface, a first side, a second side, and a T-shaped portion extending from the body portion. The T-shaped portion of the body portion defines a pair of annular grooves on opposite sides of the annular member. The T-shaped portion has a central portion connected to the body portion and a head portion at an end of the central portion opposite the body portion. The central portion of the T-shaped portion has a weep hole extending therethrough. The weep hole has opposite ends opening respectively to the pair of annular grooves.

Abstract: A subsea connection system for connecting to a hub of a subsea structure has an outer sleeve, a collet having a plurality of collet segments in which the collet segments are movable between a lock position and an unlock position, a connection hub positioned in the interior of the hollow sleeve such that the collet extends around the connection hub, and a translation mechanism cooperative with the outer sleeve so as to move the outer sleeve between a forward position and a rearward position. The connection hub is suitable for abutting the hub of the subsea structure when the plurality of collet segments are in the lock position. The plurality of collet segments are in the unlock position when the outer sleeve is in the forward position. The plurality of collet segments are in the lock position when the outer sleeve is in the rearward position.

Abstract: A subsea chemical injection system has a subsea structure, a manifold connected by jumper to the subsea structure, a coiled tubing, a disconnect mechanism affixed to the coiled tubing, and a hose extending from the disconnect mechanism to the manifold such that the chemical flowing through the coil tubing can selectively flow through the disconnect mechanism and through the hose to the subsea structure. The disconnect mechanism is adapted to selectively release from the hose. The disconnect mechanism has a connector affixed thereto. A hydraulic fluid supply is connected to the connector so as to selectively release the connector from the hose. Control lines can extend from a surface location to a control module and the disconnect mechanism for selectively delivering for receiving signals from the subsea structure.

Abstract: A system for pumping a fluids from a subsea formation has a pipe extending into the formation, a first blowout preventer affixed to the pipe so as to be in fluid communication with the pipe, a flow diverter affixed to the first blowout preventer so as to have a diverter line in fluid communication with the flow passageway of the first blowout preventer, a pump module having a flow line affixed to the diverter line of the flow diverter so as to create a positive pressure to the fluid in the flow line, and an outline interconnected to the flow line of the pump module. The pump module is suitable for passing fluid from the flow line of the pump module through the outlet line. The pump produces a pressure to the fluid greater than the pressure of the formation. A second blowout preventer is affixed to the flow diverter.

Abstract: A subsea connection system for connecting to a hub has a body with an interior passageway suitable for allowing fluids to flow therethrough, a collet having a plurality of collet segments that are movable between a locked position and an unlocked position, an outer sleeve overlying the collet, and a translator cooperative at the outer sleeve so as to move the outer sleeve between a first position and a second position. The plurality of collet segments are in the unlocked position when the outer sleeve is in the first position. The plurality of collet segments are in the locked position when the outer sleeve is in the second position. The locked position is adapted to secure the body in connection with the hub.

Abstract: A seal for use with a first coupling element and a second coupling element has an annular configuration. The seal has an inner wall and an outer wall. The seal has a first portion, a central portion and a second portion. The central portion extends outwardly of the first portion and the second portion. A channel is formed in the central portion so as to have one end opening to the outer wall at the first portion and an opposite end opening to the outer wall at the second portion. The seal is formed of a metallic material. The outer wall at the central portion has a generally V-shaped configuration.

Abstract: A sensing system for use with a subsea actuator has an actuator with a cylinder having a piston therein, and a piston rod extending outwardly of the cylinder, a magnetic member connected to or cooperative with an end of the piston rod, and a magnetic field sensor positioned over the magnetic member so as to sense magnetic field changes in relation to a movement of the magnetic member relative to the magnetic field sensor. A data acquisition system is cooperative with the magnetic field sensor for receiving a signal from the magnetic field sensor. A housing is positioned over the magnetic field sensor and over the magnetic member. The magnetic member moves through the housing in relation to a movement of the piston rod.

Abstract: An apparatus for the shearing of pipe in a subsea environment has a housing with an interior passageway suitable for allowing a pipe to extend therethrough, a shell positioned in the interior passageway of the housing, and a shape charge positioned in the shell so as to be directed toward an outer diameter of the pipe. The shaped charge includes a plurality of shape charges positioned in the shell so as to be directed to the outer diameter of the pipe. The plurality of shape charges extend radially within the shell. The plurality of shape charges are positioned in a common horizontal plane. The shell can be movable between a first position in which the shape charge is spaced from the pipe and a second position in which the shape charge bears against an outer diameter of the pipe.

Abstract: A subsea latch tool has a latch tool body with an outer surface, a lock piston slidably mounted over the outer surface of the latch tool body and movable between an extended position and a retracted position, and a lock ring extending around the outer surface of the latch tool body. The lock piston has a wedge surface at an end thereof. The wedge surface of the lock piston is interposed between the outer surface of the latch tool body and an inner surface of the lock ring. The lock piston is movable from the retracted position to the extended position so as to expand an outer diameter of the lock ring.

Abstract: An apparatus for causing an indication of a connector of a subsea structure has a lifting structure pivotally affixed adjacent an upper end of the subsea structure, an extension extending outwardly adjacent a bottom of the subsea structure and an inclination tool cooperative with the extension so as to move the lower end of the subsea structure in an angular direction offset from horizontal. The inclination tool has a ratchet mechanism cooperative with a line extending from the lifting structure. Hydraulic actuators serve to draw the ratchet mechanism upwardly in a direction toward the lifting structure.