Abstract: An optical connection system includes a first connector having at least one first optical element and a first actuation arm rotatable about a first pivot point. The optical connection system also includes a second connector having at least one second optical element configured to be coupled to the at least one first optical element via an optical connection procedure. The second connector also includes a second actuation arm rotatable about a second pivot point. The first connector is configured to engage the second connector during the optical connection procedure such that the first actuation arm is rotated about the first pivot point, the second actuation arm is rotated about the second pivot point, and an interface between the first actuation arm and the second actuation arm moves away from a longitudinal axis of the optical connection system.

Abstract: A system includes a subsea geothermal power system. The subsea geothermal power system includes a plurality of well connections configured to couple to a plurality of geothermal wells. The subsea geothermal power system also includes a geothermal power plant fluidly coupled to the plurality of well connections. The geothermal power plant is configured to receive thermal energy from the plurality of geothermal wells and convert the thermal energy into at least one of electrical energy and mechanical energy. The system also includes a subsea station having one or more pumps, one or more compressors, one or more separators, one or more energy storage devices, or a combination thereof. The subsea station is at least partially powered by the at least one of electrical energy and mechanical energy produced by the subsea geothermal power system.

Abstract: A tubing hanger assembly may include a tubing hanger and an annulus plenum designed for annulus flow that allows for communication of otherwise discontinuous bores and/or flow paths above and below the annular plenum. An annulus plenum flow path arrangement is used to connect discontinuous annulus bores from the top and the bottom of the tubing hanger in a way that maximizes flow through area while leaving space in the tubing hanger for other through bores. Further, a specifically designed flange may reduce the size and quantity of fasteners and be used in areas where radial space does not permit a full flange. The flange is compact and designed to maximize the size of an equipment-loaded bore that needs an end connection while doing so in a space-constrained environment.

Abstract: A configurable coupling assembly includes a body having a central bore and multiple receptacles. The central bore is configured to facilitate flow of fluid through the body, the receptacles are positioned radially outward from the central bore, the receptacles are substantially the same as one another, the receptacles are configured to receive respective couplers, and the respective couplers include multiple different types of couplers.

Abstract: A subsea injection system may include one or more filter stages to filter seawater and output filtered seawater and waste seawater. The waste seawater may include particles removed from the filtered seawater. The subsea injection system may also include a combined pump having an injection pump to motivate the filtered seawater into a reservoir of a geological formation. The combined pump may also include a filter pump to motivate the seawater through the filter stages and a motor to drive the injection pump and the filter pump. The motor may drive the filter pump via an indirect coupling such that the motor is sealed from the filter pump at the indirect coupling.

Abstract: A system includes a feedthrough cap having a guide funnel configured to extend about a tree body of a well system. The feedthrough cap includes a landing body configured to extend into the tree body and land on a hanger. The feedthrough cap includes a feedthrough line configured to extend through the feedthrough cap to the hanger.

Abstract: A system includes a first electrical connector configured to removably couple with a second electrical connector. The first electrical connector includes a housing having an axial opening. The first connector also includes a movable support disposed inside the housing. The movable support includes a first connector portion having a first electrical path with a first radial contact electrically coupled to a first axial contact. The first electrical connector also includes a stationary support disposed inside the housing. The stationary support includes a first mating connector portion having a first mating electrical path with a first mating axial contact coupled to a first electrical cable. The first electrical connector also includes a shuttle pin configured to engage with the second electrical connector through the axial opening in the housing. The shuttle pin is configured to move along a first axial path of travel in a first connection stage.

Abstract: A system includes a subsea power system. The subsea power system includes a bus. A plurality of energy storage units is coupled to the bus at a plurality of positions distributed throughout the subsea power system. The subsea power system also includes a controller. The controller includes a memory, a processor, and instructions stored on the memory and executable by the processor. The processor is configured to control the subsea power system to selectively discharge a first energy storage unit of the plurality of energy storage units over the bus to supply power to a first electrical actuator of a plurality of electrical actuators. The processor is also configured to control the subsea power system to selectively charge a second energy storage unit of the plurality of energy storage units over the bus via power from a power supply.

Abstract: A system includes an electric actuator having an actuation stem, a screw assembly, an electric drive, and a lock. The screw assembly is coupled to the actuation stem, wherein the screw assembly includes a male screw portion coupled to a female screw portion. The electric drive is coupled to the screw assembly, wherein the electric drive is configured to move the screw assembly to move the actuation stem. The lock is configured to hold a position of the actuation stem when not driving movement of the actuation stem.

Abstract: An electrical power system for a resource extraction system includes a thermoelectric generator assembly configured to couple to a wall of a fluid containment structure. A portion of the thermoelectric generator assembly is configured to be disposed within an opening in the wall that extends through the wall to a cavity within the fluid containment structure. In addition, the thermoelectric generator assembly includes a thermoelectric generator configured to be in thermal communication with a fluid within the opening and with an environment external to the fluid containment structure. The thermoelectric generator is configured to generate electrical power in response to a temperature differential between the fluid within the opening and the environment.

Abstract: A system includes a subsea tree comprising an area susceptible to formation of hydrates when a shut-down of a well occurs. The system also includes a trace heating blanket comprising an exterior layer and an interior layer comprising electric coils, wherein the trace heating blanket is disposed about the area of the subsea tree susceptible to formation of hydrates.

Abstract: A fluid processing machine that operates on a process fluid may include a frame that structurally supports at least a portion of the fluid processing machine and a shaft that operatively rotates about an axis and relative to the frame. The shaft may include a projection in a radial direction relative to the axis that is operationally contacted by a sealing armature that has an axial degree of freedom relative to the axis. Additionally, the fluid processing machine may include a dynamic rotational seal between the projection and the sealing armature and a dynamic axial seal between the sealing armature and the frame. The dynamic axial seal may include one or more metallic seals that seal between the sealing armature and the frame circumferentially about the axis.

Abstract: A system includes a subsea geothermal power system. The subsea geothermal power system includes a well connection configured to couple to a hydrocarbon well. The subsea geothermal power system also includes a geothermal power plant fluidly coupled to the well connection. The geothermal power plant is configured to receive thermal energy from a well fluid received from the hydrocarbon well and convert the thermal energy into at least one of electrical energy and mechanical energy. The system also includes a subsea equipment at least partially powered by at least one of the electrical energy and the mechanical energy produced by the subsea geothermal power system.

Abstract: A method for aligning a tree within a resource extraction system includes disposing a riser system on a wellhead of the resource extraction system without utilizing a mechanical alignment system to circumferentially align the riser system with the wellhead. The method also includes disposing a tubing hanger at a landed position within the wellhead. In addition, the method includes disposing an orientation mechanism on the wellhead. The orientation mechanism includes an alignment feature configured to engage a corresponding alignment feature of the tree. Furthermore, the method includes moving the tree toward the wellhead such that the alignment feature of the tree engages the alignment feature of the orientation mechanism to approximately establish a target circumferential orientation of the tree relative to the tubing hanger.

Abstract: A system includes a subsea geothermal power system. The subsea geothermal power system includes a separator configured to separate a well fluid from a hydrocarbon well into a first fluid flow and a second fluid flow. The subsea geothermal power system also includes a geothermal power plant coupled to the separator. The geothermal power plant is configured to receive thermal energy from the second fluid flow and convert the thermal energy into at least one of electrical energy and mechanical energy. The separator is at least partially powered by the at least one of electrical energy and mechanical energy produced by the subsea geothermal power system.

Abstract: A system for dewatering a subsea gas pipeline includes a pig launcher at the pipeline's upper end, which may be at or near the sea surface, and a pig receiver at the pipeline's lower end, which may be at or near the sea floor. A multiphase pump unit is deployed at the pipeline lower end and is configured to provide sea water suction to aid in a pig train being forced downwards through pipeline. The multiphase pump is configured to handle some amount of gas leaking around the pig train. A choke system may allow sea water to enter the flowline, thereby lowering the gas volume fraction (GVF) and preventing the GVF from exceeding the ability of the multiphase pump. For deeper water applications, a second pump may be provided in series that may be a single pump if positioned downstream of the multiphase pump.

Abstract: A subsea production system may include a subsea tree that includes a first valve to control a flow of reservoir fluid through the subsea tree and a second valve to control the flow of the reservoir fluid through the subsea tree. The subsea production system may also include a bus system having multiple control modules that generate control signals to operate the first valve and the second valve. The bus system may also include a first electric bus that provides the control signals from a first control module to the first valve, a second electric bus that provides the control signals from a second control module to the second valve, and a third electric bus that provides the control signals from a third control module to the first valve and the second valve.

Abstract: A contra-rotating compressor includes a first shaft assembly disposed in a housing, the first shaft assembly including an outer shaft, and a first plurality of impellers coupled to the outer shaft, wherein the outer shaft includes a final stage that includes a final impeller of the first plurality of impellers, a second shaft assembly disposed in the housing and rotatable about the longitudinal axis, the second shaft assembly including a second plurality of impellers, a first pair of annular seals between the final stage and an inner surface of the housing, the pair of annular seals being configured to permit relative rotation between the final stage and the housing, and a third annular seal positioned between the outer surface of the final stage and an inner surface of the second shaft assembly, the third annular seal configured to permit contra-rotation between the final stage and the second shaft assembly.

Abstract: A tubing hanger orientation assembly includes an annular structure having a first set of engagement surfaces configured to guide an engagement feature from a first end portion of the annular structure to a second end portion of the annular structure in response to longitudinal movement of the annular structure in a first direction. A circumferential extent of the second end portion is less than a circumferential extent of the first end portion. The annular structure includes a second set of engagement surfaces configured to guide the engagement feature from the second end portion of the annular structure to a third end portion of the annular structure in response to longitudinal movement of the annular structure in a second direction. The third end portion extends between a first side of the first end portion and a second side of the first end portion along a circumferential axis of the annular structure.

Abstract: A subsea tree assembly with a flow monitoring and measuring apparatus includes a production wing valve block coupled to a production wing branch, the production wing valve block including a wing block connector, and a fluid processing module including a frame, a module connector including an inlet and an outlet, and a fluid flow loop coupled between the inlet and the outlet, wherein the module connector is fluidicly coupled to the wing block connector. A production fluid flow goes from the production wing valve block and returns to the same block via the wing block connector, the module connector, and the fluid flow loop. A flow monitoring and measuring apparatus for a subsea tree assembly includes a module frame, a module connector connectable to a production wing valve block, the module connector including an inlet and an outlet, and a fluid flow conduit forming a loop from the outlet of the module connector back to the inlet of the module connector.