A system and process for subsea fiberoptic logging of a well has a subsea structure having a central bore, an upper valve positioned in the central bore, a lower valve positioned on the central bore below the upper valve, and a subsea probe releasably connected to an upper connector of the subsea structure. The subsea structure has at least one channel adapted to connect to a downline. The upper valve is movable between an open position and a closed position. The lower valve is movable between an open position at a lower position. The channel opens to the central bore in an area between the upper valve and a lower valve. The subsea probe has a fiberoptic line connected thereto. The fiberoptic line is adapted to extend to a portion of the central bore of the subsea structure and into the well so as to sense parameters within the well.
E21B 47/135 - Means for transmitting measuring-signals or control signals from the well to the surface, or from the surface to the well, e.g. for logging while drilling by electromagnetic energy, e.g. of radio frequency range using light waves, e.g. infrared or ultraviolet waves
E21B 47/001 - Survey of boreholes or wells for underwater installations
E21B 47/01 - Devices for supporting measuring instruments on drill bits, pipes, rods or wirelinesProtecting measuring instruments in boreholes against heat, shock, pressure or the like
A subsea grease injection system has a grease accumulator containing a supply of grease, a hydraulic accumulator, a flowline connected to an outlet of the grease accumulator so as to allow discharge of grease from the supply to flow therethrough, and a subsea structure connected to the flowline. The hydraulic accumulator is in fluid communication with the grease accumulator such that the displacement of hydraulic fluid from the hydraulic accumulator causes a corresponding discharge of grease from the grease accumulator. The subsea structure receives grease from the flowline. The grease accumulator is a piston and cylinder in which the piston is received in the cylinder to define first and second compartments. The supply of grease is in the first compartment. The hydraulic fluid fills an interior of the second compartment. This avoids the use of hydraulic conduits from the surface such that only power and communications are from the surface.
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
3.
Method and apparatus for temporary injection using a dynamically positioned vessel
A dynamically positioned vessel (DPV) is located above an injection well, inject water or other fluids temporarily or for a short period of time, adjust the injection parameters, and either continue operating for the life of the system or as long as required to add permanent facilities on another platform. The DPV is connected to the potential injection well via a hybrid riser system. The hybrid riser system includes a rigid portion and a flexible portion. Injection using the DPV and the hybrid rise system can be more economical than injection using a conventional mobile offshore drilling unit (MODU) and a rigid riser.
A process for installing the payload onto a subsea structure has the steps of affixing an adapter spool on to the subsea structure, deploying a plurality of winches in spaced relation to the subsea structure, connecting an end of a plurality of slings received on the plurality of sheaves to a plurality of winches, connecting an opposite end of the plurality of slings to the payload, lowering the payload in a direction toward the subsea structure, actuating the plurality of winches so as to draw the payload downwardly into a position on the subsea structure, and locking the payload onto the subsea structure. The adapter spool has a collar with a plurality of sheaves extending outwardly therefrom. The payload can be a capping stack and the subsea structure can be a blowout preventer.
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.
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
E21B 41/00 - Equipment or details not covered by groups
E21B 41/04 - Manipulators for underwater operations, e.g. temporarily connected to well heads
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
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.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
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.
A relief well injection spool (10) for use in killing a well has a body with a pair of inlets (22, 24) opening to a bore (20) on an interior of the body, a ram body (16) cooperative with the bore of the body so as to selectively open and close the bore, an upper connector (14) affixed to the body and adapted to connect the body to a lower end of a blowout preventer, and a wellhead connector (18) affixed to a lower end of the body. Each of the pair of inlets has a valve (26, 28, 34, 36) cooperative therewith. The upper connector (14) opens to the bore of the body. The wellhead connector (18) 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.
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
E21B 34/04 - Valve arrangements for boreholes or wells in well heads in underwater well heads
9.
Process and system for killing a well through the use of relief well injection spools
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.
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
E21B 41/00 - Equipment or details not covered by groups
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
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.
F16J 15/48 - Sealings with packing ring expanded or pressed into place by fluid pressure, e.g. inflatable packings influenced by the pressure within the member to be sealed
F16L 23/032 - Flanged joints the flanges being connected by members tensioned axially characterised by the shape or composition of the flanges
A subsea connection system (10) for connecting to a hub of a subsea structure (12) has an outer sleeve (18), a collet (58) having a plurality of collet segments in which the collet segments are movable between a lock position and an unlock position, a connection hub (46) positioned in the interior of the hollow sleeve such that the collet extends around the connection hub, and a translation mechanism (64) cooperative with the outer sleeve so as to move the outer sleeve between a forward position and a rearward position. The connection hub (46) is suitable for abutting the hub (42) 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.
E21B 43/013 - Connecting a production flow line to an underwater well head
F16L 37/084 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking
12.
Rapid mobilization air-freightable capping stack system
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.
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 21/10 - Valves arrangements in drilling-fluid circulation systems
E21B 33/072 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells for cable-operated tools
13.
Subsea booming system and method for deploying a subsea booming system
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.
E02B 15/08 - Devices for reducing the polluted area without removing the material
E02B 15/10 - Devices for removing the material from the surface
B63B 35/32 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for for collecting pollution from open water
14.
Poppet assembly for use in a subsea connection system
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.
F16L 37/28 - Couplings of the quick-acting type with fluid cut-off means
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
E21B 29/12 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground specially adapted for underwater installations
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
F16L 37/30 - Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings
F16L 1/26 - Repairing or joining pipes on or under water
F16L 37/12 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members using hooks, pawls, or other movable or insertable locking members
F16L 37/35 - Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in each of two pipe-end fittings at least one of two lift valves being opened automatically when the coupling is applied at least one of the valves having an axial bore communicating with lateral apertures
F16L 37/62 - Couplings of the quick-acting type pneumatically or hydraulically actuated
E21B 29/00 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground
E21B 33/00 - Sealing or packing boreholes or wells
15.
Relief well injection spool apparatus and method for killing a blowing well
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.
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
E21B 34/04 - Valve arrangements for boreholes or wells in well heads in underwater well heads
E21B 33/13 - Methods or devices for cementing, for plugging holes, crevices or the like
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 34/16 - Control means therefor being outside the borehole
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.
A subsea connection system (10) for connecting to a hub (14) has a body (12) with an interior passageway suitable for allowing fluids to flow therethrough, a collet having a plurality of collet segments (30) that are movable between a locked position and an unlocked position, an outer sleeve (18) overlying the collet, and a translator (24, 26, 20 and 54) 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 (30) 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.
A subsea chemical injection system (10) has a subsea structure (12), a manifold (14) connected by jumper to the subsea structure (10), a coiled tubing (22), a disconnect mechanism (20) affixed to the coiled tubing, and a hose (16) extending from the disconnect mechanism to the manifold such that the chemical flowing through the coiled tubing can selectively flow through the disconnect mechanism and through the hose to the subsea structure. The disconnect mechanism (20) is adapted to selectively release from the hose (16). The disconnect mechanism (20) 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.
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 43/013 - Connecting a production flow line to an underwater well head
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.
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 43/013 - Connecting a production flow line to an underwater well head
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.
F16L 37/091 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking by means of a ring provided with teeth or fingers
F16L 37/084 - Couplings of the quick-acting type in which the connection between abutting or axially-overlapping ends is maintained by locking members combined with automatic locking
21.
Seal for use in subsea connections and subsea connections employing such a seal
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.
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.
E21B 29/12 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground specially adapted for underwater installations
E21B 29/02 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground by explosives or by thermal or chemical means
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
23.
Sensing and monitoring system for use with an actuator of a subsea structure
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.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
E21B 33/043 - Casing headsSuspending casings or tubings in well heads specially adapted for underwater well heads
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.
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.
An apparatus for diverting a fluid from a subsea well has a blowout preventer with an upper portion and a lower portion, and a diverter affixed between the upper and lower portions of the blowout preventer. Each of the upper portion and lower portion of the blowout preventer has a flow passageway extending vertically therethrough. The diverter has an interior passageway extending vertically therethrough in alignment with the flow passageway of the upper and lower portions of the blowout preventer. The diverter has a flowline communicating with the interior passageway and extends outwardly therefrom. The flowline has a valve thereon which is movable between an open position and a closed position. The open position is suitable for allowing at least a portion of the fluid from the flow passageway to pass outwardly of the flowline to a location remote from the blowout preventer.
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
E21B 34/04 - Valve arrangements for boreholes or wells in well heads in underwater well heads
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
27.
Method and system for protecting wellhead integrity
A method of protecting an integrity of a wellhead includes the steps of affixing a subsea structure to the wellhead, installing a plurality of piles into the subsea floor adjacent the wellhead, extending lines between the subsea structure and the piles, and tensioning the lines such that each of the lines applies tension to the subsea structure. The plurality of lines are secured to an upper portion of the subsea structure. The tensioning mechanism has a tensioning cylinder having a ratchet rod extending therefrom. The ratchet rod is connected to either the line, the pile or the subsea structure.
A fluid diverting apparatus for use with a blowout preventer or a wellhead has a lower marine riser package having an interior passageway through which fluids can pass, an elongate member affixed to the lower marine riser package at an end opposite the blowout preventer stack or the wellhead, and a tubular member extending through a portion of the interior of the elongate member. The tubular member extends through a portion of the interior passageway of the lower marine riser passage. A seal is formed in one of the lower marine riser package of the elongate member so as to extend around an exterior of the tubular member so as to allow fluids to flow through a passage in the tubular member.
A system for diverting fluids from a wellhead in a subsea environment has a capping stack with a connector suitable for connection or interconnection to the wellhead, a flow base fixedly positioned in the subsea environment, and a conduit connected to the outlet of a diverter line of the capping stack and connected to the inlet of an interior passageway of the flow base. The conduit is suitable for passing fluids from the capping stack toward the flow base. The flow base is a modified horizontal Christmas tree. The interior passageway within the horizontal Christmas tree has a plug therein located a level below the level of the inlet to the flow base. The flow base can be attached to a wellhead or to an anchor pile in the subsea environment.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
E21B 33/038 - Connectors used on well heads, e.g. for connecting blow-out preventer and riser
30.
System for diversion of fluid flow from a wellhead
A system for the diversion of flow from a wellhead has a mudline closure mechanism suitable for attachment to the wellhead, a blowout preventer connected or interconnected to the mudline control mechanism, and a flow control line having one end connected to a diversion passageway of the mudline control mechanism and extending therefrom such that an opposite end of the flow control line is disposed away from the mudline closure mechanism. The mudline closure mechanism has a main passageway communicating with the flow passageway of the blowout preventer. The mudline closure mechanism has a valve suitable for switching fluid flow from the main passageway to the diversion passageway. The blowout preventer is positioned above the mudline closure mechanism. The flow control line is supported by a base anchored into the subsea floor away from the mudline closure mechanism.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
31.
Cap assembly for use with a tubing spool of a wellhead
A cap assembly for use with a tubing spool of a wellhead has a body with an interior passageway body and a mandrel extending upwardly therefrom. The body has a connector extending from an opposite end thereof. The interior passageway extends though the mandrel and the connector. A valve is affixed to the body and extends into the interior passageway. The valve is movable between a first position closing the interior passageway and a second position opening the interior passageway. An actuator is connected to the valve so as to move the valve between the first and second positions. A tubing hanger stab is affixed to the body and extends through the connector so as to join with a tubing hanger in the tubing spool.
A capping stack (10) for use with a subsea well has a body (12) with a flow passageway (34) extending therethrough, a first bore (44) having one end opening to an outlet end of the flow passageway (34), a second bore (46) opening to the outlet end of the flow passageway (34), a first flowline (18) affixed to the first bore and extending upwardly therefrom, a second flowline (20) affixed to the second bore and extending upwardly therefrom, a first valve (48) cooperative with the first flowline (18) so as to be movable between an open position and a closed position, and a second valve (50) cooperative the second flowline (20) so as to be movable between an open position and a closed position. The inlet end of the flow passageway is suitable for connection to a blowout preventer or to a wellhead of a subsea well. Each of the bores extends upwardly at an acute angle to vertical from the flow passageway.
An apparatus for connecting a hub of a first pipe to a hub of a second pipe in a subsea environment includes a frame suitable for receiving the hub of the second pipe, a post extending outwardly of the frame, a landing structure slidably positioned on the post, and an actuator for moving the landing structure along the post such that the hub of the first pipe is juxtaposed against the hub of the second pipe. The landing structure includes a receptacle formed thereon. This receptacle is suitable for receiving a slotted portion of an arm extending from a trunnion extending around the first pipe such that the first pipe can pivot from a generally vertical orientation to a generally horizontal orientation. A clamp can extend against the hubs of the first and second pipes so as to join the pipes together.
A subsea pipe connection assembly has a first flange, a nut magazine positioned against a side of the first flange and having a plurality of nuts therein corresponding to the plurality of holes of the first flange, a second flange having a plurality of holes in alignment with the holes of the first flange, and a plurality of studs extending through holes of the first and second flanges such that the nuts in the nut magazine are affixed to the ends of the studs. A sleeve is affixed to and extending from the second flange. An ROV-delivered frame can be supported on the sleeve of the pipe such that a torquing tool connected to the frame can apply torque to a nut on the stud. The sleeve has a guide surface thereon so as to direct the torquing tool to nuts on the plurality of studs.
A system for controlling functions of a subsea structure, such as a blowout preventer, has a plurality of actuators respectively affixed to a plurality of controls of the subsea structure, and an acoustic signal generator positioned remotely from the plurality of actuators. Each of the plurality of actuators has a transponder connected thereto. The acoustic signal generator produces an acoustic signal so as to actuate at least one of the plurality of actuators. Each of the actuators is an electrically-powered torque wrench having a battery affixed there to so as to supply power thereto. An induction generator can transmit an electromagnetic wave along the tubing associated with the blowout preventer so as to recharge the batteries of the torque wrenches.
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
E21B 29/12 - Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windowsDeforming of pipes in boreholes or wellsReconditioning of well casings while in the ground specially adapted for underwater installations
A system for capping a blowout preventer has a capping stack with a connector suitable for connection to the blowout preventer, a flowing stack, and an intervention blowout preventer connected to a connector of the flowing stack. The capping stack has a fluid passage extending from the connector. The capping stack has at least one diverter line in communication with the fluid passage. The flowing stack has an interior passageway extending to the connector at an upper end thereof. The flowing stack has at least one pipe in communication with the interior passageway. The pipe is connected with the diverter line of the capping stack such that a flow fluid passing through the diverter line passes through the pipe into the interior passageway of the flowing stack.
E21B 43/01 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells specially adapted for obtaining from underwater installations
E21B 33/076 - Well headsSetting-up thereof having provision for introducing objects or fluids into, or removing objects from, wells specially adapted for underwater installations
E21B 33/064 - Blow-out preventers specially adapted for underwater well heads
37.
Method of forming a field joint for a subsea pipeline and a method of laying and positioning such subsea pipeline
A method of forming a field joint for a subsea pipeline includes the steps of positioning an end of a first pipe adjacent to an end of a second pipe, welding the end of the first pipe to an end of the second pipe, and applying a coating material over an exterior surface of the first pipe, over the welding, and over an exterior surface of second pipe such that the coating material is in sealing relationship therewith. The coating material has air-filled glass spheres therein. A mold is placed over the adjacent pipe sections and the coating material is injected under pressure into the mold.
A subsea structure flowline connection assembly (10) has a subsea structure (12) with a flowline (14) therein, a junction plate (16) affixed to the subsea structure (12) so as to support a flowline connector (1.8) thereon, a receptacle (20) affixed to or adjacent td the junction, plate, and a fly-in connector assembly (22) having a connector (24) thereon. The connector (24) of the fly-in connector assembly (22 ) being engaged with the flowline connector of the junction plate (16). The fly-in connector assembly having a flow passageway (26) in communication with the connector of the fly-in connector assembly; The receptacle (20) has at least one slot formed therein. The fly-in connector assembly (22) has an insert member slidably received by the slot. The fly-in connector assembly has an actuator coupled to the connector thereof so as to allow an ROV to rotate an end effector so as to move the connector of the fly-in connector assembly toward the flowline connector.
F16L 35/00 - Special arrangements used in connection with end fittings of hoses, e.g. safety or protecting devices
F16L 29/02 - Joints with fluid cut-off means with a cut-off device in one of the two pipe ends, the cut-off device being automatically opened when the coupling is applied
F16L 1/14 - Laying or reclaiming pipes on or under water between the surface and the bottom
E21B 43/00 - Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
A system for remediating hydrates has a heat storage box with an interior volume, a heater for heating fluid flowing into the hot fluid inlet of the heat storage box, a heat exchanger positioned in the interior volume of the heat storage box so as to be in heat exchange relationship with heated water from the interior volume of the heat storage box, and a line connected to a heated water outlet of the heat exchanger so as to be manipulated toward a location of the hydrates for the purpose of delivering the heated water toward the hydrates. The heat exchanger is piping extends in a serpentine pattern within an upper portion of the heat storage box. The line can be connected to a hot stab suitable for a manipulation by an ROV.
A diverter system (10) for a subsea well has a blowout preventer (12) and a diverter (14) affixed to an outlet (20) of the blowout preventer. The blowout preventer (12) will have an interior passageway with an inlet (22) at a bottom thereof and an outlet (24) at a top thereof. The diverter (14) has a flow passageway extending therethrough and communication with the interior passageway of the blowout preventer (12). The diverter (14) has a valve therein for changing a flow rate of a fluid flowing through the flow passageway. The diverter (14) has at least one channel opening in valved relation to the flow passageway so as to allow the fluid from the flow passageway to pass outwardly of the diverter. At least one flow line is in valved communication with the flow passageway (48) so as to allow fluids or materials to be introduced into the flow passageway.
A diverter system (10) for a subsea well has a blowout preventer (12) and a diverter (14) affixed to an outlet (20) of the blowout preventer. The blowout preventer (12) will have an interior passageway with an inlet (22) at a bottom thereof and an outlet (24) at a top thereof. The diverter (14) has a flow passageway extending therethrough and communication with the interior passageway of the blowout preventer (12). The diverter (14) has a valve therein for changing a flow rate of a fluid flowing through the flow passageway. The diverter (14) has at least one channel opening in valved relation to the flow passageway so as to allow the fluid from the flow passageway to pass outwardly of the diverter. At least one flow line is in valved communication with the flow passageway (48) so as to allow fluids or materials to be introduced into the flow passageway.
A grease accumulator apparatus for use in subsea applications has a bottle with an internal chamber, a plunger positioned within the internal chamber and slidable therealong, and an end cap assembly affixed to one end of the bottle. The end cap assembly has an indicator member slidably connected thereto. The indicator member is cooperative with the plunger such that an end of the indicator member moves outwardly of the end cap assembly as the plunger moves in the bottle toward the end cap assembly. The end cap assembly has a body with a housing affixed to one end thereof. The housing has a hydraulic fluid inlet and a hydraulic fluid outlet. The indicator member is movable between a position in which the inlet and outlet are fluidically connected in a second position in which fluid flow is blocked between the inlet and the outlet.
F16D 31/02 - Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution using pumps with pistons or plungers working in cylinders
42 - Scientific, technological and industrial services, research and design
Goods & Services
Engineering services in the oil and gas industry; custom design and engineering of capping stack assemblies, subsea manifolds, subsea trees, pipeline end terminations, rigid jumpers, suction piles, subsea intervention tooling, valves, subsea flushing units, pressure compensators, intervention and workover control systems, surface reels, direct production control systems, umbilical termination assemblies, hydraulic flying leads, junction plates, and subsea oil and gas equipment
42 - Scientific, technological and industrial services, research and design
Goods & Services
Engineering services in the oil and gas industry; custom design and engineering of capping stack assemblies, subsea manifolds, subsea trees, pipeline end terminations, rigid jumpers, suction piles, subsea intervention tooling, valves, subsea flushing units, pressure compensators, intervention and workover control systems, surface reels, direct production control systems, umbilical termination assemblies, hydraulic flying leads, junction plates, and subsea oil and gas equipment
