AKER SUBSEA AS Patent applications |
Patent application number | Title | Published |
20160003001 | SUBSEA VALVE - Subsea valve for control of fluid that can be contaminating and at elevated pressure and temperature, such as well or process fluids, the valve comprising an actuator unit and a valve part, the actuator unit can be operated in order to control the valve part, distinctive in that the actuator unit is magnetically coupled to the valve part and the coupling is through a barrier wall isolating the actuator unit from the valve part, and the actuator unit and a driving part of the magnetic coupling are arranged in a sealed actuator housing into which leakage of said contaminating fluid thereby has been eliminated. | 01-07-2016 |
20150354574 | SEALED PUMP - The invention provides a subsea pump, distinctive in that it comprises a pressure housing divided into two compartments; a compartment with pump or impellers arranged on a shaft and a compartment with motor or a stator; a diaphragm arranged sealingly between the compartments, a magnetic coupling between the compartments, through the diaphragm; and a pressure compensation system for balancing the pressure on the diaphragm of the motor or stator compartment side to the pressure on the diaphragm of the pump or impeller compartment side. | 12-10-2015 |
20150340130 | HEAT DISSIPATION IN A POWER CABLE OR A POWER UMBILICAL - A power cable, or power umbilical, comprising a number of electric cables for transfer of large amounts of electric power/energy; filler material in the form of stiff elongate polymer elements; said number of electric cables and stiff elongate polymer elements being gathered in a twisted bundle by means of a laying operation; a protective sheath that encompasses the electric cables and the filler material; wherein the filler material is manufactured of a polymer material, which polymer material has been added constituents that transforms the filler material to be substantially more heat conducting and heat dissipating. | 11-26-2015 |
20150316162 | PRESSURE VOLUME REGULATOR - Pressure volume regulator ( | 11-05-2015 |
20150315884 | MULTIPHASE PRESSURE BOOSTING PUMP - The invention provides a system for multiphase pumping, preferably for subsea application, distinctive in that it comprises a multiphase pressure boosting pump and a separator, preferably adapted for subsea operation, a multiphase fluid inlet connected to the pump, a multiphase outlet from the separator, an outlet of the pump arranged to an inlet of the separator, a liquid outlet of the separator arranged to a liquid inlet on the pump, and a power recovery turbine arranged between said liquid outlet of the separator and said liquid inlet on the pump. The invention also provides a multiphase pressure boosting pump, preferably adapted for subsea operation, comprising a motor, one or more impellers arranged on a shaft common with a motor shaft or coupled to the motor, a pressure housing, a multiphase fluid inlet and an outlet, distinctive in that the pump further comprises a liquid injection inlet and a power recovery turbine, with the power recovery turbine arranged between the liquid injection inlet and the pump impellers. | 11-05-2015 |
20150292824 | SUBSEA HEAT EXCHANGER, CLEANING TOOL AND APPURTENANT METHOD - Subsea heat exchanger ( | 10-15-2015 |
20150285060 | SUBSEA LEAK-DETECTING SYSTEM - A subsea leak detection system for an off-shore operation facility, comprising at least a leak detector ( | 10-08-2015 |
20150285010 | WEAK LINK FOR A RISER SYSTEM - A weak link ( | 10-08-2015 |
20150247371 | SUBSEA XMAS TREE ASSEMBLY AND ASSOCIATED METHOD - Subsea Xmas tree assembly ( | 09-03-2015 |
20150139738 | LIGHT WEIGHT GUIDEPOST - A releasable guidepost for use on the seabed together with a fixed subsea structure is shown. The guidepost assists during lowering of a component from the surface of the water to the subsea structure to obtain a focused landing of said component at a predetermined location. The guidepost includes an upward (in the position of use) projecting end designed for engagement with the lowered component. The guidepost is of a light weight shell construction, in order to increase buoyancy during lowering thereof through the sea by use of an ROV. The light weight shell construction defines a cavity filled with a non-collapsible buoyancy material in at least part of the guidepost. | 05-21-2015 |
20150048079 | SUBSEA HEATING ASSEMBLY AND METHOD OF HEATING A SUBSEA COMPONENT - Subsea heating assembly, comprising a component interface cable ( | 02-19-2015 |
20140376900 | LONG STEP OUT DIRECT ELECTRIC HEATING ASSEMBLY - A subsea direct electrical heating assembly adapted to heat a hydrocarbon conducting steel pipeline ( | 12-25-2014 |
20140345873 | TUBING HANGER WITH COUPLING ASSEMBLY - A tubing hanger ( | 11-27-2014 |
20140305539 | METHOD OF DRAINING A FLUID TANK IN A FLUID SEPARATION SYSTEM - A method of draining at least one liquid collector in a system for separating and collecting liquid contained in gas from a reservoir, wherein the liquid collector is connected to an outlet from a compressor, and a recirculation circuit between the outlet of the compressor and an inlet from the reservoir to a liquid separator to which the one liquid collector is connected downstream thereof, and which outlet is connected downstream to a transport pipe. The method comprises raising the pressure of the liquid in the e liquid collector to a higher pressure than the pressure in the inlet pipe or the transport pipe, and draining the liquid in the liquid collector upstream either to the inlet pipe or directly to the liquid separator via a first drain line, or alternatively downstream to the transport pipe via a second drain line. | 10-16-2014 |
20140232109 | CONNECTION ASSEMBLY - Connection assembly (I) for connecting a first and second pipe end ( | 08-21-2014 |
20140203640 | DEVICE FOR STABLE SUBSEA ELECTRIC POWER TRANSMISSION TO RUN SUBSEA HIGH SPEED MOTORS OR OTHER SUBSEA LOADS - The invention provides a device for operative connection between a subsea step out cable far end and subsea loads such as pumps, compressors and control systems, distinctive in that the device is a rotating frequency stepper device, more specifically a rotating step up or step down device, and it comprises: a motor and a generator operatively connected so that the motor drives the generator, at least one gas and/or liquid filled vessel into which at least one of the motor and generator are arranged, and the step out length is long, which means long enough to cause problems due to the Ferranti effect at frequency and power levels feasible for subsea pump and compressor motors, and where the device via the step out cable receives input electrical power at a low enough frequency to have stable transmission and the device, operatively connected to the subsea motor, delivers an output electrical frequency, amperage and voltage feasible for operation of the connected motors. System for pressure boosting of hydrocarbon fluid or other fluid subsea, comprising the device. | 07-24-2014 |
20140197764 | DEVICE FOR STABLE SUBSEA ELECTRIC POWER TRANSMISSION TO RUN SUBSEA HIGH SPEED DC MOTORS OR OTHER SUBSEA DC LOADS - Device for operative connection between a subsea step out cabie far end and subsea toads such as pumps, compressors and control systems, distinctive in that the device is a subsea DC provider (SDCP), and it comprises: a SDCP unit for altering alternating current power received from the step out cable to direct current power for delivery to said loads, a gas and/or liquid filled vessel into which said unit is arranged, and the device is a SDCP for subsea location at a far end of a subsea step out cable connected to at least one AC power source at the step out cable near end, and the step out length is long, which means long enough to cause, stability problems at frequency and power levels feasible for subsea pump and compressor motors, and where the device via the step out cable receives input electrical power at a low enough frequency to have stable transmission and the device, operativeSy connected to the subsea motors, delivers a DC output electrical amperage and voltage feasible for operation of connected pump and compressor motors. System for subsea pressure boosting of hydrocarbon fluid or other fluid, comprising the device. | 07-17-2014 |
20140170884 | PRE-TENSIONED CONNECTOR - Connector ( | 06-19-2014 |
20140144645 | INTERNAL TREE CAP AND ITC RUNNING TOOL - Internal tree cap (ITC) adapted to be installed in the bore of a subsea well unit or to an internal tubular element of the same, comprising a locking element for releasably locking the internal tree cap to said subsea well unit or internal tubular element. The ITC further comprises a fluid channel extending through a fluid barrier between the lower and upper part of the internal tree cap, which fluid channel is blocked by a burst element adapted to break and open for fluid flow through the fluid channel when exposed to a predetermined pressure difference over the burst element. The invention also relates to an ITC running tool and a locking mechanism for supporting the ITC in the tool. | 05-29-2014 |
20140124209 | GATE VALVE - The invention provides a gate valve for control of production of petroleum, distinctive in that the valve comprises a coating or hard facing on the internal bore surface exposed to flow of petroleum and associated fluids and solids. | 05-08-2014 |
20140086764 | SUBSEA PRESSURE BOOSTER - Subsea turbomachine for boosting the pressure of petroleum fluid flow from subsea petroleum productions wells or systems, comprising an electric motor and a compressor or pump driven by the electric motor, a fluid inlet and a fluid outlet, distinctive that the turbomachine comprises a pressure housing common for the electric motor or stator, and compressor, pump or rotor; a magnetic gear inside the common pressure housing for operative connection between the motor or stator and compressor, pump or rotor; and a partition inside the common pressure housing, arranged so as to separate a motor or stator compartment from a compressor, pump or rotor compartment. | 03-27-2014 |
20140084199 | VALVE STEM SEAL ARRANGEMENT - The invention provides a valve useful as a production valve in or connected to a production tree subsea, and other similar uses subsea or topside, the valve comprises a valve element, a valve element pressure housing, an actuator, a stem and a bonnet, the actuator is via the stem operatively arranged to close or open a fluid passageway through the valve element, the bonnet enclose the stem and is connected to the valve element pressure housing and seals are arranged between the stem and the bonnet for sealing against the pressure of the valve element pressure housing. The valve is distinctive in that the valve comprises at least one seal for sealing between stem and bonnet, the seal having identical inner sealing diameter against the stem and outer sealing against a single body or element of the bonnet. | 03-27-2014 |
20140048278 | SUBSEA WELL ASSEMBLY AND ASSOCIATED METHOD - Subsea well assembly having a Xmas tree ( | 02-20-2014 |
20140035281 | CONNECTION ASSEMBLY - Connection assembly ( | 02-06-2014 |
20140034328 | BORE PROTECTOR - The invention provides a bore protector for a tubing hanger, the bore protector is to be arranged in a tubing hanger in a spool in a subsea production Xmas tree for through tubing rotary drilling (TTRD) in an existing production well. The bore protector is distinctive in that it comprises a means to be releasably fastened in at least one of: the spool in the Xmas tree and the tubing hanger, and a wear sleeve extending down into the tubing hanger, covering the tubing hanger sealing surfaces for the tubing hanger plugs, the wear sleeve comprises a shoulder at or near an upper end, the shoulder is arranged on a below positioned seat of a main part of the bore protector, in which position the wear sleeve is releasably fastened. | 02-06-2014 |
20140014356 | GATE VALVE ASSEMBLY - A gate valve assembly ( | 01-16-2014 |
20130343932 | SUBSEA MOTOR-TURBOMACHINE - Subsea pressure booster comprising an electric motor ( | 12-26-2013 |
20130309032 | SUBSEA CLAMP CONNECTOR EMERGENCY RELEASE TOOL AND METHOD - A clamp connector emergency release tool designed for subsea operations, when normal release of a subsea clamp connector ( | 11-21-2013 |
20130307219 | SEAL HOLDER ANDMETHOD FOR SEALING A BORE - A seal holder for retaining a sealing arrangement ( | 11-21-2013 |
20130264818 | BOLTLESS LOCKING ARRANGEMENT - A “boltless” locking arrangement for secure attachment of a boss to a fixed structural part is shown. The boss has a central axis and is extending substantially perpendicular to the plane of the structural part when the parts are assembled. The arrangement includes two substantially radially extending, when viewed relative to the central axis, action surfaces provided in the external surface of the boss, and at least one annular plate configured body made up by individual segments. The at least one annular plate configured body is at its radially inner, but external portion designed to co-operate, or engage with, at least one of the respective two action surfaces, and at its radially outer, but internal portion and on opposite side, is abutting the fixed structural part. | 10-10-2013 |
20130240216 | BOP LOCK DOWN - A well head system for application in sub sea well exploration comprising a well head ( | 09-19-2013 |
20130240213 | GUIDEPOST EXTENSION - A releasable guidepost extension is used on the seabed together with a bottom fixed guidepost part. These parts make up a guidepost for use during the lowering of a component from the surface of the water to a subsea structure. The guidepost part includes an upward (in use position) projecting end designed for engagement with a lower (in use position) end of the guidepost extension. The guidepost extension is loosely connected to the bottom fixed guidepost part via a pin and socket part on respective ends. A gap, or clearance, exists between the pin and socket part in the longitudinal direction, and at least one friction forming device arranged in the gap on either the pin part or in the socket part. The friction forming device does not get in contact, or engaged, with the other part unless the guidepost extension is subjected to a lateral force. | 09-19-2013 |
20130220206 | SUBSEA ANCHOR - Subsea anchor ( | 08-29-2013 |
20120312754 | CONTROL OF SUBSEA CYCLONE - System and method for control of a subsea located cyclone for separating oil from water. The cyclone is arranged to receive water with oil contents through an inlet line, the oil is separated from the water and delivered through an oil outlet to an oil outlet line, and the water is delivered through a water outlet to a water outlet line. The system is comprising a control valve in the oil outlet or oil outlet line from the cyclone, a first differential pressure transducer arranged between the inlet line and the oil outlet from the cyclone, and a second differential pressure transducer arranged between the inlet line and the water outlet from the cyclone. The system is distinguished in that a sensor for measuring oil contents is arranged in the water outlet or water outlet line, and via a control means said sensor is operatively connected to the control valve. | 12-13-2012 |
20120285699 | SUBSEA CAP | 11-15-2012 |
20120205137 | INTEGRATED HIGH POWER UMBILICAL - An integrated power umbilical (K | 08-16-2012 |
20120138307 | INTEGRATED PRODUCTION MANIFOLD AND MULTIPHASE PUMP STATION - A subsea production station (SPS) including at least a production manifold and a multi phase pump unit (MPP) for subsea operation is shown. Each of them has respective modules for control/operation operatively connected to at least a floating production storage and offloading unit (FPSO), subsea umbilicals, risers, flow lines, subsea wells, installations such as X-mas tree and other units in the system. The manifold ( | 06-07-2012 |
20120000665 | WELL TEMPLATE AND METHOD FOR USE THEREOF - Well template ( | 01-05-2012 |
20100299119 | PERFORMANCE MONITOR FOR SUBSEA EQUIPMENT - The present invention relates to a system and method for monitoring subsea equipment performance and for providing early warning for equipment maintenance, comprising at least one sensor coupled to said equipment and arranged to measure at least one performance indicator value and a calculation unit for sampling the measured indicator values at a chosen rate, and from the sampled data estimating a likely future development of the sampled value and estimating the time for the passing of a chosen threshold value, the threshold value being a critical value requiring repair of replacements of said equipment, the system being adapted to provide a signal indicating the calculated time of repair/replacement. | 11-25-2010 |
20100294383 | SUBSEA ACCUMULATOR MONITORING SYSTEM - The invention relates to a monitoring system and method for accumulator banks including at least two pressure accumulators, the accumulator bank is coupled to a device and being adapted to provide a pressurized fluid into the device at pressure reductions in said device. The monitoring system comprises at least one sensor for detecting a chosen parameter in the accumulator bank at chosen intervals of time, and a recording unit for recoding the sampled measured parameters, a storage device for storing predetermined characteristic information related to the pressure development in the accumulator bank during pressure reductions at the device and representing different numbers of active accumulators in the accumulator bank, and calculation means for comparing the recorded measured parameters with the stored characteristic information, and determining from this comparison the number of active accumulators in the accumulator bank. | 11-25-2010 |
20100054677 | POWER UMBILICAL - A power umbilical is shown that comprises a number of power cables ( | 03-04-2010 |
20100021238 | CONNECTOR MEANS - A connector means ( | 01-28-2010 |