A bearing system including a wheel assembly transmitting load to a damping assembly, wherein the wheel assembly is configured to rotate angularly relative to the damping assembly.
A bearing system including a wheel assembly transmitting load to a damping assembly, wherein the wheel assembly is configured to rotate angularly relative to the damping assembly.
A subsea oil filtration system is described that forms a closed circuit with and is mounted on or connected to a subsea rotating machine. According to some embodiments, the oil filtration system enables the removal of dirt and/or water that has entered the barrier fluid/oil system whether it comes from the Hydraulic Pressure Unit (HPU), from the umbilical or from other parts of the oil contained lubrication and/or barrier fluid systems.
B01D 29/56 - Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
B01D 35/02 - Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
B01D 36/00 - Filter circuits or combinations of filters with other separating devices
B03C 1/30 - Combinations with other devices, not otherwise provided for
Systems and methods are described for processing a high-temperature process fluid using a processing machine in a subsea location while protecting dynamic seals within the machine. In some examples a small portion of the process fluid is cooled using a cooling system the cooled process fluid is then directed towards the dynamic seals. In other examples the dynamic seals are shielded and isolated from the high temperature process fluid and cooler barrier fluid is circulated within an enclosed volume in proximity to the seal.
A method for removing hydrate plugs in a hydrocarbon production station, the method comprising: fluidically isolating the production station; diverting production flow to a bypass line; and adjusting the pressure in the production station to a level sufficient to melt the hydrate plugs.
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
E21B 41/00 - Equipment or details not covered by groups
F28G 9/00 - Cleaning by flushing or washing, e.g. with chemical solvents
B08B 9/032 - Cleaning the internal surfacesRemoval of blockages by the mechanical action of a moving fluid, e.g. by flushing
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
6.
AN OIL FILTRATION SYSTEM FOR SUBSEA OIL-FILLED MACHINES
A subsea oil filtration system is described that forms a closed circuit with and is mounted on or connected to a subsea rotating machine. According to some embodiments, the oil filtration system enables the removal of dirt and/or water that has entered the barrier fluid/oil system whether it comes from the HPU, from the umbilical or from other parts of the oil contained lubrication and/or barrier fluid systems.
A bearing system comprising a wheel assembly transmitting load to a damping assembly via connecting means, wherein the connecting means enable angular rotation between the wheel assembly and the damping assembly.
Systems and methods are described for processing a high-temperature process fluid using a processing machine in a subsea location while protecting dynamic seals within the machine. In some examples a small portion of the process fluid is cooled using a cooling system the cooled process fluid is then directed towards the dynamic seals. In other examples the dynamic seals are shielded and isolated from the high temperature process fluid and cooler barrier fluid is circulated within an enclosed volume in proximity to the seal.
A counter-rotating wet gas compressor (100) for deployment and operation on the sea floor is described. The compressor has alternating rows of impellers (220, 250), with each successive row of impellers being mounted a central hub (210) or to an outer sleeve (240). According to some embodiments, no static diffusers are positioned between the alternating counter-rotating rows of impellers such that the design is structurally robust, compact and capable of compressing fluids that contain significant portions of liquid phase.
A counter-rotating wet gas compressor for deployment and operation on the sea floor is described. The compressor has alternating rows of impellers, with each successive row of impellers being mounted a central hub or to an outer sleeve. According to some embodiments, no static diffusers are positioned between the alternating counter-rotating rows of impellers such that the design is structurally robust, compact and capable of compressing fluids that contain significant portions of liquid phase.
B63B 27/30 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for transfer at sea between ships or between ships and off-shore structures
F04D 25/06 - Units comprising pumps and their driving means the pump being electrically driven
A heat exchanger system (150) is described that includes an inlet (202) and an outlet (204) for a first fluid and a heat exchanger between the inlet (202) and the outlet (206) wherein the first fluid circulates, wherein the heat exchanger comprises at least one deflector (230, 232, 234, 236, 238, 430, 432) to guide the flow of a second fluid. A method is also described to exchange heat between a first and a second fluid using free convection velocity field to create forced convection in the heat exchanger of a heat exchanger system (150). A method to exchange heat between a first and a second fluid comprising providing a heat exchanger system (150) between the first and the second fluids, said heat exchanger system (150) comprising a heat exchanger wherein the first fluid circulates and increasing the flow turbulences of a second fluid around the heat exchanger.
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
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
F28F 9/22 - Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
A method for removing hydrate plugs in a hydrocarbon production station, the method comprising: fluidically isolating the production station; diverting production flow to a bypass line; and adjusting the pressure in the production station to a level sufficient to melt the hydrate plugs.
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
13.
APPARATUS FOR THERMAL MANAGEMENT OF HYDROCARBON FLUID TRANSPORT SYSTEMS
Apparatus for thermal management of a hydrocarbon fluid transport system, the apparatus comprising means adapted to maintain the temperature of hydrocarbon fluid in the transport system at a temperature above the temperature at which hydrocarbon hydrates will form. Heat loss between a valve body (1) and its actuator (11) can be reduced by insulating the stem (13) connecting them. A trap (65) for warm water can be used around a pipeline to reduce heat loss due to convection. A pump or compressor can be thermally connected to bypass line so as to be effectively thermally one unit.
A transfer system is described including a subsea installation fixed relative to a seabed, and a transfer element for transfer of fluid, electrical signals, or electric current between the subsea installation and a floating arrangement. The transfer element is configured to connect to the subsea installation and includes a connector for connecting to the floating arrangement. The transfer system includes a buoyancy element anchored to the seabed, and has a through-going hole in the vertical direction. The transfer element extends through the hole and is movable in both directions through the hole. The transfer element includes a fender system that extends at least partially around the circumference of the transfer element. The fender system abuts the buoyancy element when the transfer element is suspended. When the transfer element is suspended, the transfer element forms an S-shape or J-shape between the subsea installation and the buoyancy element.
B63B 27/34 - Arrangement of ship-based loading or unloading equipment for cargo or passengers for transfer at sea between ships or between ships and off-shore structures using pipe-lines
c) available at the sea surface (2); a connection device (13) for connection of the transfer device (10) to the tension buoy (14); a swiveling device (20) for rotation of the connection device (13) in relation to the tension buoy (14); and a position limiting device (21) fixed to the connection device (13), for limiting the position of the pickup line (11) in relation to the tension buoy (14).
A method of pressure testing a module containing fluid, the method comprising: sealing the module; applying heat to the module to increase the temperature and thus the pressure of the fluid from a working pressure to a test pressure; and conducting a test, and subsequently cooling the module or allowing the module to cool until the fluid pressure returns substantially to the working pressure. Corresponding apparatus is also disclosed.
Apparatus comprising: a pump (1) having a pump drive shaft (2) for operating the pump, a first motor (7) connected via a first flexible coupling (8) to drive one end of the shaft and a second motor (10) connected via a second flexible coupling (11) to drive the opposite end of the shaft; and a variable speed drive connecting each of the first and second motors electrically to drive the pump drive shaft.
A method of controlling fluid pressure in a closed system, the method comprising: using a pressure regulating unit (3) connected to the system (1), the unit comprising a first conduit (4) fluidly connecting the closed system (1) to an external system; a first regulating valve (RV1) interposed between the external system and one end of the conduit (4) and a second regulating valve (RV2) interposed between the closed system and the other end of the conduit (4); and the method comprising the following steps: a) opening one of the first or second regulating valves (RV1, RV2); b) closing said one regulating valve; c) opening the other regulating valve; d) closing the other regulating valve; e) repeating steps a) to d) in turn until the desired fluid pressure is achieved in the system.
F17D 1/20 - Arrangements or systems of devices for influencing or altering dynamic characteristics of the systems, e.g. for damping pulsations caused by opening or closing of valves
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
G05D 16/20 - Control of fluid pressure characterised by the use of electric means
The present invention relates to a loading system for transferring at least one medium between a first installation and a floating vessel, comprising an anchoring device which can be fixed relative to a seabed, at least one elongated first transfer element, which is normally vertically oriented in an installed state, at least one flexible second transfer element arranged in the extension of the first transfer element by a swivel arrangement which is mounted between the first and second transfer element. The swivel arrangement is rotatable at least about a longitudinal axis of the first transfer element. A free end of the second transfer element, in an installed state when the system is not being used, is located freely suspended in the body of water. The invention also relates to a retrieval system and method.
A system to pressurize barrier fluid of a submersible installation to provide a differential pressure between the ambient pressure surrounding the submersible installation and the pressure of the barrier fluid internally in the submersible installation during submersion of the system, wherein the differential pressure fits within a predetermined differential pressure range. The system comprises a pre-charge arrangement and a pressure intensifier which is adapted to start working at a start-up pressure. The pre-charge arrangement is adapted, during submerging of the system, to provide a differential pressure within the predetermined differential pressure range until the ambient pressure equals the start up pressure of the pressure intensifier, while the pressure intensifier is adapted to provide a differential pressure within the predetermined differential pressure range when the ambient pressure equals the start-up pressure of the pressure intensifier during further submersion of the system.
PRAD RESEARCH AND DEVELOPMENT LIMITED (Virgin Islands (British))
FRAMO ENGINEERING AS (Norway)
Inventor
Vethe, Eivind
Pinguet, Bruno
Theron, Bernard
Sjurseth, Erik
Abstract
Apparatus for use in sampling multiphase fluid in a fluid transport pipeline, the apparatus comprising: a process fluid conduit (10) comprising a blind leg (16) connected to an upstream section (12) and a downstream section (14); and wherein a fluid sampling port (18) is provided in the blind leg.
The invention concerns a subsea system transporting fluid, wherein the subsea system comprises a first part having a flow path carrying a flow of fluid and at least a second part having a flow path provided for carrying fluid. The second part is temporarily being closed off from the flow path of the first part of the subsea system. The heat from the fluid transported in the first part of the subsea system is transferred to the second part by a heat conducting structure establishing a contact between the first and second part of the subsea system, to prevent the formation of hydrates in the second part of the subsea system.
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 43/24 - Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
A transfer system is described comprising a subsea installation (4) which is fixed relative to the seabed (1), and at least one transfer element (5) for transfer of at least one fluid and/or electrical signals and/or electric current between the subsea installation (4) and a floating arrangement (3). The transfer element (5) is arranged for connection to the subsea installation (4) at a first end and comprises connecting means for connecting to the floating arrangement (3) at its free end (7). The transfer system further comprises a buoyancy element (31) which is anchored to the seabed, and is provided with at least one through-going hole in the vertical direction. The at least one transfer element (5) extends through the at least one hole in the buoyancy element (31) and is movable in both directions through the at least one hole. The at least one transfer element (5) further comprises a fender system (32) which is attached to the transfer element and extends at least partially round the circumference of the transfer element and is designed in such a manner that it abuts against the buoyancy element (31) when the at least one transfer element (5) is suspended. When the transfer element (5) is suspended in the buoyancy element (31), the transfer element (5) forms an S-shape or J-shape between the subsea installation (4) and the buoyancy element (31) with the result that the transfer element (5) is located above the seabed.
There is disclosed a subsea cooler for the cooling of a fluid flowing in a subsea flow line. The subsea cooler comprises an inlet and an outlet which are connectable to the subsea flow line and at least two cooling sections arranged in fluid communication with the inlet and the outlet of the subsea cooler. Each cooling section includes a plurality of cooling pipes which are configured such that they exchange heat energy with the surrounding sea water when the subsea cooler is in use. The subsea cooler is further provided with valve means such that the flow of fluid through the cooling sections may be regulated individually. There is also disclosed a method for removal of accumulated wax, hydrates and sand and debris which has accumulated in the subsea cooler wherein separate cooling section are shut off whereby the temperature of the fluid flowing through the subsea cooler is increased thereby melting the wax and hydrates, and whereby the speed of the fluid flow through the subsea cooler is increased thereby jetting out sand and debris.
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
F28G 9/00 - Cleaning by flushing or washing, e.g. with chemical solvents
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 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
Apparatus for homogenization of multi-phase fluid; the fluid including at least a first phase and a second phase a gaseous phase and a liquid phase; the apparatus including an inner reservoir fluidly communicative with an outer receptacle; the inner reservoir including an inlet for multiphase fluid, an outlet having a smaller cross sectional area than the body for outflow of the first phase and at least one opening into the outer receptacle for outflow of the second phase, the opening being spaced from the first phase outlet; wherein the outer receptacle has an inlet conduit having a neck which at least partially surrounds the inner reservoir outlet.
A control and instrumentation system utilizes a subsea data hub to establish closed loop of between subsea production system components and a surface located controller. The control and instrumentation system can be utilize to operational control all of the required process components of the subsea production system from the surface located controller.
F04F 5/22 - Jet pumps, i.e. devices in which fluid flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being elastic fluid displacing elastic fluids for evacuating of multi-stage type
F04B 47/06 - Pumps or pumping installations specially adapted for raising fluids from great depths, e.g. well pumps having motor-pump units situated at great depth
E21B 21/00 - Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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
An integrated power distribution system utilizes a subsea power distribution hub that receives high voltage electricity through an umbilical from a host surface facility. The subsea power distribution hub steps down the high voltage electricity and distributes the appropriate electrical power supply to multiple components of a subsea production system (e.g., in-well pumps, subsea booster pumps, subsea processing units, subsea valves, and subsea sensors) via jumpers. The integrated subsea power distribution system can be utilize to supply electrical power to all of the required process components of the subsea production system from the in-well completion to the surface host facility.
E21B 41/00 - Equipment or details not covered by groups
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
H02J 5/00 - Circuit arrangements for transfer of electric power between ac networks and dc networks
28.
SYSTEM AND METHOD FOR SUBSEA POWER DISTRIBUTION NETWORK
An integrated power distribution system utilizes a subsea power distribution hub that receives high voltage electricity through an umbilical from a host surface facility. The subsea power distribution hub steps down the high voltage electricity and distributes the appropriate electrical power supply to multiple components of a subsea production system (e.g., in-well pumps, subsea booster pumps, subsea processing units, subsea valves, and subsea sensors) via jumpers. The integrated subsea power distribution system can be utilize to supply electrical power to all of the required process components of the subsea production system from the in-well completion to the surface host facility.
A control and instrumentation system utilizes a subsea data hub to establish closed loop of between subsea production system components and a surface located controller. The control and instrumentation system can be utilize to operational control all of the required process components of the subsea production system from the surface located controller.
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 41/04 - Manipulators for underwater operations, e.g. temporarily connected to well heads
E21B 44/00 - Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systemsSystems specially adapted for monitoring a plurality of drilling variables or conditions
An arrangement for directing a fluid flow or a tool transported in a fluid flow in an under water structure includes plural flow line arrangements each including at least one flow line, and at least two distribution devices to be varied between at least two positions. One distribution device connects at least two flow arrangements providing for the selection of the fluid flow pattern directing the fluid through the distribution devices and the flow arrangements depending on the position of each of the distribution devices. A method directs a fluid flow or a tool transported in a fluid flow.
A system for handling a transfer device (10) for transferring load from a storage facility, sub sea or integrated in the production facility (1) to a vessel on the sea surface (2) comprising: a pickup line (11) comprising a first end (11a) connected to the transfer device (10) and a second end (11b & 11c) available at the sea surface (2); a connection device (13) for connection of the transfer device (10) to the tension buoy (14); a swiveling device (20) for rotation of the connection device (13) in relation to the tension buoy (14); and a position limiting device (21) fixed to the connection device (13), for limiting the position of the pickup line (11) in relation to the tension buoy (14).
A system to pressurize barrier fluid of a submersible installation to provide a differential pressure between the ambient pressure surrounding the submersible installation and the pressure of the barrier fluid internally in the submersible installation during submersion of the system, wherein the differential pressure fits within a predetermined differential pressure range. The system comprises a pre-charge arrangement and a pressure intensifier which is adapted to start working at a start-up pressure. The pre-charge arrangement is adapted, during submerging of the system, to provide a differential pressure within the predetermined differential pressure range until the ambient pressure equals the start up pressure of the pressure intensifier, while the pressure intensifier is adapted to provide a differential pressure within the predetermined differential pressure range when the ambient pressure equals the start-up pressure of the pressure intensifier during further submersion of the system.
The invention concerns a subsea system transporting fluid, wherein the subsea system comprises a first part having a flow path carrying a flow of fluid and at least a second part having a flow path provided for carrying fluid. The second part is temporarily being closed off from the flow path of the first part of the subsea system. The heat from the fluid transported in the first part of the subsea system is transferred to the second part by a heat conducting structure establishing a contact between the first and second part of the subsea system, to prevent the formation of hydrates in the second part of the subsea system.
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
E21B 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
E21B 43/12 - Methods or apparatus for controlling the flow of the obtained fluid to or in wells
E21B 43/24 - Enhanced recovery methods for obtaining hydrocarbons using heat, e.g. steam injection
The present invention regards a subsea valve system comprising a valve, a fluid supply line connectable to a remote fluid supply and in connection with an inlet of the valve, an outlet of the valve connectable to an outlet fluid line and a fluid tight housing at least partly enclosing the valve. According to the invention the fluid supply line comprises an outlet within the housing, establishing a pressure within the housing mainly equal to the pressure of the supply fluid at the inlet of the valve. The invention also regards a method for protecting a subsea valve system.
There is provided a subsea system for increasing pressure and/or flow rate in a flow line (46), the subsea system being arranged in fluid communication with said flow line (46) which receives fluid from at least one fluid source (A). The subsea system comprises at least one ompressor or pump (42) and at least one subsea cooler (44) which is arranged in the flow line in series with the at least one compressor (42). The subsea system further comprises a recirculation line (50) which is confirgured such that at least a portion of the fluid flowing in the flow line (46) downstream the at least one compressor (42) and the at least one subsea cooler (44) may be recirculated back to the flow line (46) upstream the at least one compressor (44) and the at least one subsea cooler (42) such that the recirculating line (50) can be used for capacity regulation of the at least one compressor (44) and cleaning of the at least one subsea cooler (42). There is also provided a method for the removal of wax and/or sand and debris which has accumulated in at least one subsea cooler (44) of a subsea system.
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
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
The subsea cooler (10) comprises an inlet manifold (16) and an outlet manifold (20) which are connectable to the subsea flow line and at least two cooling sections arranged in fluid communication with the inlet and the outlet of the subsea cooler. Each cooling section (15) includes a plurality of cooling pipes (22) which are configured such that they exchange heat energy with the surrounding sea water when the subsea cooler is in use. The subsea cooler (10) further comprising at least one distributing pipe (24) for each cooling section (15) extending between a primary distribution point (28) and respective cooling sections (15), the distributing pipes (24) being inclined relative to a horizontal plane when the subsea cooler is installed on the seabed such that the fluid flows downwards from the primary distribution point (28) toward the cooling sections (15).
E21B 36/00 - Heating, cooling or insulating arrangements for boreholes or wells, e.g. for use in permafrost zones
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
F28F 27/02 - Control arrangements or safety devices specially adapted for heat-exchange or heat-transfer apparatus for controlling the distribution of heat-exchange media between different channels
A resilient (slide) bearing device, for example for use in connection with support of a rotating element in a vessel, where the bearing insert comprises devices for gradual absorption of loads to which the bearing is exposed. This is achieved by the devices for gradual absorption of loads comprising two or more elastic elements with different modulus of elasticity, where the elements are furthermore placed in layers. A method for maintenance and service of the device is also presented.
F16C 27/06 - Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
B23P 19/04 - Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformationTools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
The present invention relates to a loading system for transferring at least one medium between a first installation and a floating vessel, comprising an anchoring device which can be fixed relative to a seabed, at least one elongated first transfer element, which is normally vertically oriented in an installed state, at least one flexible second transfer element arranged in the extension of the first transfer element by a swivel arrangement which is mounted between the first and second transfer element. The swivel arrangement is rotatable at least about a longitudinal axis of the first transfer element. A free end of the second transfer element, in an installed state when the system is not being used, is located freely suspended in the body of water. The invention also relates to a retrieval system and method.
The present invention relates to a device for providing a controllable pressure reduction between a first fluid conducting pipe (1) and a second fluid conducting pipe (2). The device (10) comprises a fluid inlet (11) in fluid communication with the first fluid conducting pipe (1), and a fluid outlet (12) in fluid communication with the second fluid conducting pipe (2). A S-shaped, spiral shaped, sinus shaped or the like fluid communicating, pressure reduction channel (14) is provided between the fluid inlet (11) and the fluid outlet (12).
The present invention relates to a dynamic sealing system device for a submerged pump comprising at least one feed line running in towards the dynamic sealing system, with a first valve device arranged in the feed line and a second valve device arranged such that in an open position it opens a first bypass line that runs from a point on the feed line between the first valve device and the pump and a low-pressure source at the pump to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump.
F04B 35/04 - Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
F04B 53/16 - CasingsCylindersCylinder liners or headsFluid connections
A fluid pump system comprises an electrical drive unit and a rotary pump comprising a rotatable shaft and a drive element formed from a number of impellers attached to the shaft for causing flow within a process fluid. The electrical drive unit comprises an electrical stator and an electrical rotor attached to the shaft via a coupling, the electrical stator being disposed adjacent to the electrical rotor. The electrical stator is disposed within a first casing and the rotary pump and the electrical rotor are disposed within a second casing. The first casing contains a first fluid and the second casing contains a second fluid.
H02K 9/197 - Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil in which the rotor or stator space is fluid-tight, e.g. to provide for different cooling media for rotor and stator
The invention relates to an electric machine (1), comprising a rotor (2) and a stator (3) provided inside a housing (4), where the housing comprises a fluid inlet opening (8) and a fluid outlet opening (9). Fluid is circulated inside the housing (4) from the fluid inlet opening to the fluid outlet opening (9) via a gap between the rotor and the stator. The rotor is rotating at 1.800-6.000 rounds per minute during normal operation. The width of said gap in this machine is approximately 2 - 6 times as large as the width of a gap that is optimized to provide an optimal electromagnetic efficiency for the machine, for optimizing the total energy efficiency for the electric machine.
A tanker (1) is converted to a floating production ship by a vertical opening (1) being cut out in the hull (1) and a cassette-like plate structure (7) inserted in the opening. The cassette (7) is composed of plate elements (12, 13) which are designed to fit and connect with the cut elements in the hull's opening. The cassette (7) will thereby form part of the ship's hull strength. The cassette has a vertical shaft (8) for mounting a turret (14) in/near the ship's bottom area. The turret (14) is wet-mounted in the shaft.
An arrangement for directing a fluid flow or a tool transported in a fluid flow in an under water structure, comprising plural flow line arrangements each including at least one flow line, and at least two distribution devices to be varied between at least two positions, wherein one distribution device connects at least two flow arrangements providing for the selection of the fluid flow pattern directing the fluid through the distribution devices and the flow arrangements depending on the position of each of the distribution devices. The invention also includes method for directing a fluid flow or a tool transported in a fluid flow.
E21B 33/035 - Well headsSetting-up thereof specially adapted for underwater installations
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 43/017 - Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station
The invention regards a manifold for fluids, comprising a housing (10) with a center axis (11) and a number of fluid apertures (12,13) through the walls forming the housing (10) and a fluid diverter system (20), comprising a fluid diverter element (25) mounted in the system (20) selectively rotating around an axis, comprising an axial outlet (27) and an inlet (26) which may be positioned in connection with one fluid aperture (12,13) in the housing. The fluid diverter system (20) is axially insert able into the housing (10) and further comprises a ring element (21), with an outer configuration complementary to an inner configuration of the housing (10), which ring element (21) is positioned around the fluid diverter element (25) and connected to the fluid diverter element (25), and which ring element (21) comprises fluid apertures (22A,B) corresponding to the fluid apertures (12,13) in the housing.
F16K 11/08 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks
E21B 34/00 - Valve arrangements for boreholes or wells
F16K 11/085 - Multiple-way valves, e.g. mixing valvesPipe fittings incorporating such valvesArrangement of valves and flow lines specially adapted for mixing fluid with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
46.
Connection system and method for connecting and disconnecting a floating unit to and from a buoy which is connected to a subsea installation
The present invention relates to a connection system and a method for connecting and disconnecting a floating unit to and from a buoy which is connected to a subsea installation, where the buoy comprises a first connection device for connecting pipes and/or lines for transfer of fluid, control signals and/or electric power between the buoy and the floating unit. The connection system further comprises a support structure which is laterally movable relative to the floating unit and a swivel stack arrangement movably mounted on the support structure. The swivel stack arrangement comprises a second connection device for connecting to the first connection device in the buoy; shut-off devices for opening and closing at least one of the pipes and/or lines in the first and second connection devices by connecting and disconnecting the buoy; and a turret bearing for rotating the buoy relative to the floating unit.
A geostationary anchoring and riser arrangement in a vessel comprises a rotating body (11), which is mounted in a vertical shaft (6) in the vessel (1) by axial and radial annular bearings (31, 32). Above the upper axial and radial bearing (31, 32) is mounted a dynamic primary seal (35), thereby establishing a dry space above the bearings, in the shaft (6). Under the bearing is mounted a secondary seal (41). A fluid manifold (28) is placed in the dry shaft space.
The present invention regards a system for transferral of at least one cryogenic fluid between two objects. At least one transfer pipe extending from the installation extends into a receiving room in the vessel, the transfer pipe being connectable with piping on the vessel through a connection in the receiving room. The receiving room is closable, the connection, and or at least a part of the construction forming the receiving room and or other elements in the receiving room are constructed to withstand eventual leakage of the cryogenic fluid and the system also provides for evacuating the receiving room for eventual spilled fluid. The invention also regards a flange for use in the system.
The present invention regards a subsea valve system comprising a valve, a fluid supply line (10) connectable to a remote fluid supply (2) and in connection with an inlet of the valve (12), an outlet (14) of the valve connectable to an outlet fluid line (15) and a fluid tight housing (11) at least partly enclosing the valve. According to the invention the fluid supply line (10) comprises an outlet (101) within the housing, establishing a pressure within the housing mainly equal to the pressure of the supply fluid at the inlet of the valve. The invention also regards a method for protecting a subsea valve system.
A fluid pump system (1) comprises an electrical drive unit (2) and a rotary pump (4) comprising a rotatable shaft (6) and a drive element (8) formed from a number of impellers (9) attached to the shaft (6) for causing flow within a process fluid (7). The electrical drive unit (2) comprises an electrical stator (10) and an electrical rotor (12) attached to the shaft (6) via a coupling (13), the electrical stator (10) being disposed adjacent to the electrical rotor (12). The electrical stator (10) is disposed within a first casing (14) and the rotary pump (4) and the electrical rotor (12) are disposed within a second casing (16). The first casing (14) contains a first fluid (18) and the second casing (16) contains a second fluid (20).
The present invention relates to a dynamic sealing system device for a submerged pump (1) comprising at least one feed line (7) running in towards the dynamic sealing system, with a first valve device (8) arranged in the feed line (7) and a second valve device (12) arranged such that in an open position it opens a first bypass line (13) that runs from a point on the feed line (7) between the first valve device (8) and the pump (1) and a low-pressure source at the pump (1) to reduce the pressure in a barrier fluid in the sealing system. The invention also comprises a method for reducing the barrier fluid pressure for a submerged pump.
A resilient (slide) bearing (1) device, for example for use in connection with support of a rotating element in a vessel, where the bearing insert comprises devices (4, 5, 6, 7) for gradual absorption of loads to which the bearing is exposed. This is achieved by the devices (4, 5, 6, 7) for gradual absorption of loads comprising two or more elastic elements (4) with different modulus of elasticity, where the elements (4) are furthermore placed in layers. A method for maintenance and service of the device is also presented.
F16C 17/03 - Sliding-contact bearings for exclusively rotary movement for radial load only with tiltably-supported segments, e.g. Michell bearings
F16C 17/06 - Sliding-contact bearings for exclusively rotary movement for axial load only with tiltably-supported segments, e.g. Michell bearings
F16C 27/06 - Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
F16F 1/40 - Springs made of plastics, e.g. rubberSprings made of material having high internal friction consisting of a stack of similar elements separated by non-elastic intermediate layers
The invention relates to a sealing device for a swivel, an improved attachment device and a method for improving a seal in a swivel, where a sealing medium is composed according to the viscosity and chemical composition of the application concerned and has a viscosity substantially over 500 cst and where the sealing medium is pressurized by a pressure transmission unit.
F01D 11/04 - Preventing or minimising internal leakage of working fluid, e.g. between stages by non-contact sealings, e.g. of labyrinth type using sealing fluid, e.g. steam
54.
Means for transferring electric power in a turret-moored vessel and method of assembly
Means for transferring electric power and/or signals comprises an electrical power slip-ring system (EPSR) (3) comprising a housing (4) containing an electrical slip-rings, the housing (4) being connected to a support structure (6) of a vessel (7) and a brush carrier unit (8) that is in slidable contact with the electrical conductor means, the brush carrier (8) being fixed to a turret (2). A swivel unit (10) extends thorough the center of the housing (4). The turret (2) and support structure (6) may be disposed on the vessel in various configurations such as an internal turret configuration, a submerged turret configuration or an external turret configuration.
The present invention relates to a loading system for transferring at least one medium between a first installation (4) and a floating vessel (3), comprising an anchoring device (5) which can be fixed relative to a seabed (1), at least one elongated first transfer element (6), which is normally vertically oriented in an installed state, at least one flexible second transfer element (7) arranged in the extension of the first transfer element (6) by a swivel arrangement (15) which is mounted between the first (6) and second transfer element (7). The swivel arrangement (15) is rotatable at least about a longitudinal axis of the first transfer element (6). A free end of the second transfer element (7), in an installed state when the system is not being used, is located freely suspended in the body of water. The invention also relates to a retrieval system and method.
A system for operation and service of at least one hydrocarbon-producing well (24) and of equipment (27, 35), which is disposed under water, for further transport of the well stream, where the system comprises - at least one pipeline (32), - at least one booster unit (27), - a vessel (10) comprising - an anchoring system about which the vessel can rotate or swivel, - means (60, 61, 62) for conducting an intervention on subsea equipment, - means for communication with and control of the at least one well (24) and other equipment (35), - means for injecting chemicals into the well streams (25, 32), - means (73) for transferring to and inserting pigs in the pipeline (32), - means (14, 15) for production of energy for operation of subsea equipment, - means (22) for transferring energy from the means (14, 15) for production of energy to the booster unit (27) and any other subsea equipment.
E21B 43/017 - Production satellite stations, i.e. underwater installations comprising a plurality of satellite well heads connected to a central station
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
57.
CONNECTION SYSTEM AND METHOD FOR CONNECTING AND DISCONNECTING A FLOATING UNIT TO AND FROM A BUOY WHICH IS CONNECTED TO A SUBSEA INSTALLATION
The present invention relates to a connection system and a method for connecting and disconnecting a floating unit to and from a buoy which is connected to a subsea installation, where the buoy comprises a first connection device for connecting pipes and/or lines for transfer of fluid, control signals and/or electric power between the buoy and the floating unit. The connection system further comprises a support structure which is laterally movable relative to the floating unit and a swivel stack arrangement movably mounted on the support structure. The swivel stack arrangement comprises a second connection device for connecting to the first connection device in the buoy; shut-off devices for opening and closing at least one of the pipes and/or lines in the first and second connection devices by connecting and disconnecting the buoy; and a turret bearing for rotating the buoy relative to the floating unit.
A geostationary anchoring and riser arrangement in a vessel comprises a rotating body (11), which is mounted in a vertical shaft (6) in the vessel (1) by axial and radial annular bearings (31, 32). Above the upper axial and radial bearing (31, 32) is mounted a dynamic primary seal (35), thereby establishing a dry space above the bearings, in the shaft (6). Under the bearing is mounted a secondary seal (41). A fluid manifold (28) is placed in the dry shaft space.
A tanker (1) is converted to a floating production ship by a vertical opening (1) being cut out in the hull (1) and a cassette-like plate structure (7) inserted in the opening. The cassette (7) is composed of plate elements (12, 13) which are designed to fit and connect with the cut elements in the hull's opening. The cassette (7) will thereby form part of the ship's hull strength. The cassette has a vertical shaft (8) for mounting a turret (14) in/near the ship's bottom area. The turret (14) is wet- mounted in the shaft.
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