Abstract: The following invention relates to an actuator for controlling a valve (100) in a subsea installation, the valve having a spring (108) to return the valve to a failsafe condition upon loss of pressure.

Abstract: The invention concerns a method for flushing of debris from a valve assembly arranged in a fluid line. The valve assembly comprises at least two flow regulating units arranged in series between an inlet and an outlet of the valve assembly. The inlet pressure is larger than the outlet pressure, and each flow regulating unit has a spring element and an opening is provided for each flow regulating unit which initially is set as a minimum opening allowing fluid to pass from one side of the each of the flow regulation unit to the other side of the flow regulation unit. The spring element regulates the opening in response to the pressure difference over the flow regulating unit.

Abstract: A method of operating a system (16) for pumping a fluid, which system comprises: a pump (17) for pumping the fluid; and a variable speed motor (20) for driving the pump (17). The method comprises the steps of: identifying a first system parameter (PI); identifying a second system parameter (P2) which is a function of the torque of the pump; setting a target value (P10) for a first system parameter; monitoring the first system parameter (PI); establishing a target value (P20) for the second system parameter based on the difference between the target value and the measured value of the first system parameter; monitoring the second system parameter; and regulating the rotational speed of the pump such that the difference between the monitored value and the target value of the second system parameter is minimized. A system for implementing the method is also disclosed.

Abstract: The present invention relates to a method of operating a variable speed motor (1) drivingly connected to a multiphase pump (3) via a shaft (4). A power transmission device (20) for transmission of power to the variable speed motor (1) from a power source (2) is provided. A first controller (30) is provided between the power source (2) and the power transmission device (20) for controlling the variable speed motor (1). A speed parameter (n) representative of a motor speed (nmot) is calculated in the first controller (30). A torque reference (Tref) is received in the first controller (30). A second controller (40) is provided in communication with the first controller (30) for compensation of the effect of the power transmission device (20). The second controller (40) comprises a representation of a compensation torque (?Tmap) as a function of a mapped torque parameter (Tmap) and a mapped speed parameter (nmap).

Abstract: A device for measuring properties of a fluid flow includes a pipe having a first pipe section which includes a fluid flow modifying feature for causing a liquid part of the fluid flow to form an annular layer at an inner wall of a second pipe section arranged downstream of the first pipe section, the second pipe section including a near field probe for applying a low frequency signal to the annular layer and a full volume field probe for applying a high frequency signal into the second pipe section, and a third pipe section arranged downstream of the second pipe section, the third pipe section including a resonance enabling element that together with at least the second pipe section provides a resonator which captures parts of the frequency range of the full volume field probe.

Abstract: A connector includes a cylindrical body and a plurality of longitudinal latching fingers arranged around the body. Each finger has a first end region which includes a first latching structure, a second end region and an intermediate region. Each finger is pivotally supported at the intermediate region and is movable between a non-latching position and a latching position. An actuating device is operable to force the second end region of each finger towards the body by exerting a force on at least a portion of the second end region. The actuating device includes a force-imparting member which cooperates with a force-receiving region located on the second end region. The force-receiving region includes a first outer surface portion which is curved radially outwardly to define an apex and a trough, the latter being located between the apex and the intermediate region and configured to accommodate the force-imparting member.

Abstract: A cooler system has at least first and second coolers which are arranged in series, at least a third cooler which is arranged in parallel with the first and second coolers, and at least one flow control device for directing a fluid flow through at least one of the coolers. At least one of the coolers includes a bypass circuit or a recirculation loop for the fluid flow.

Abstract: A subsea power distribution device and system. The subsea power distribution device comprises a watertight housing accommodating at least one transformer, the transformer having a primary winding and a plurality of secondary windings; input terminals, electrically connected to the primary winding and arranged to be connected to a remote power supply; output terminals, electrically connected to the secondary windings and arranged to be connected to subsea power consuming devices. The switches are arranged to break the connections between each secondary winding and a corresponding output terminal, and the switches are arranged within the watertight housing.

Abstract: The present invention provides a seal comprising an elastomeric composite, said composite comprising an elastomeric polymer and a negative thermal expansion (NTE) filler, the NTE filler has a coefficient of thermal expansion (CTE) lower than ?6×10-6 K-1 within a temperature range of 220-293 K and is present in an amount of 0.01-50 volume % based on the total volume of the elastomeric composite at 20° C.

Abstract: The present invention concerns a gas-liquid separation system and a method for operating a gas-liquid separation system.

Abstract: A system, method and hydrocarbon processing facility for determining at least one parameter of a multiphase fluid (1) comprising hydrocarbons flowing in a conduit (2) of a hydrocarbon processing facility, which system comprises: said conduit; at least one coaxial measurement probe (3), which comprises at least one probe conductor, a probe shield (7) arranged outside of the at least one probe conductor, which at least one measurement probe is mounted to the conduit for measuring signals indicative of at least one physical property of the fluid- and comprises a first, open-ended terminal (8) where the at least one probe conductor and the probe shield are exposed to the flowing fluid when the system is in operation; and a signal processor (4) for interpreting the signals to determine the at least one parameter.

Abstract: The present invention relates to a horizontal Christmas tree comprising a central bore (72) and a horizontal outlet (70) extending laterally from the central bore. A tubing hanger (74) is locked into the central bore and connected to a production tubing (76) extending into the well. The tubing hanger comprises a first passage (78) axially aligned with the production tubing and a second passage (80) extending laterally from the first passage and aligned with the outlet. The first passage comprises means for releasable fastening of at least one plugging device (1a, 1b) for plugging the first passage above the second passage.

Abstract: The invention relates to a suction pile comprising a cylinder shaped body (1) with a closed end (3) and an open end (2), means (4) for attaching an arrangement to ejecting entrapped water, air and mud, but also provide a pressure difference within the suction pile during installation, and an attachment system (10) for attaching external equipment to the suction pile, the suction pile is formed with a skin portion (17) and at least one flange portion (6). At least one of the flange portions (6) comprises an element (11, 26) that form at least a part of the attachment system (10) for external equipment.

Abstract: A subsea connection includes an umbilical termination head having a termination head housing and at least one first connecting line, each of which has a first mating device; a subsea base unit having a base unit housing and at least one second connecting line, each of which has a second mating device that is connectable with a corresponding first mating device; and a locking device for locking the termination head to the subsea base unit. The second mating device is fixed to a stab plate and kept in a retracted position before connection of the termination head with the base unit, and the stab plate and the second mating device are arranged to move relative to the base unit housing during connection.

Abstract: -a subsea pump (30) arranged in fluid connection with the well interior (38, 39) providing a closed system suitable for pressure and flow regulation and establishing a temporary fluid flow between the subsea pump and the well interior, -a fluid source (31) supplying fluid to the subsea pump, wherein the subsea pump has a mode of operation for regulation of the flow and/or pressure between the pump and the well interior to operate equipment arranged in the well, -a safety control system for controlling shut down of a valve arrangement in a subsea position, which safety control system is also arranged in a subsea position and comprises a control unit (60) and an actuation unit (70) for local control and operation of the valve arrangement, - the valve arrangement is operated by the control unit into a valve configuration providing a barrier system between a reservoir in fluid communication with the well interior and the surroundings, -a plurality of sensors (100, 51, 52) arranged for measuring fluid parameters t

Abstract: The present invention provides a seal element made in an elastomeric composite, said material comprising an elastomeric polymer and a phase change material (PCM), wherein the PCM is able to provide thermal energy to the elastomeric polymer upon cooling to the phase transition point of the PCM.

Abstract: A method and an apparatus (280) for determining an estimate of a position of a hydraulic subsea actuator (200), wherein the hydraulic subsea actuator (200) has a fluid port (220) fluidly connected to a fluid source (260). The apparatus (280) comprises a hydraulic cylinder (310) connected in series between the fluid source (260) and the fluid port (220) of the hydraulic subsea actuator, and a movable piston (320) arranged in the second hydraulic cylinder (310), a position determining device, arranged to determine a position of the movable piston (320), and a signal processing device (350), arranged to calculate the estimate of the position of the hydraulic subsea actuator based on the position of the movable piston.

Abstract: A method and apparatus for determining the flow rates of a multi-component fluid mixture is disclosed. The temperature and pressure of the multi-component mixture is determined. The fractions of the multi-component mixture are determined based on at least two measured physical properties of the mixture and knowledge of the same physical property of the individual components. The velocity of the multi component mixture is determined. The flow rate of the individual component of the fluid is determined. An electromagnetic measurement is performed. A statistical parameter related to the electromagnetic measurement is calculated and compared to an empirical derived threshold value corresponding to the value of the statistical parameter when only one of the components of the multi component mixture is present. The thickness of unwanted deposits on the pipe wall is determined and an improved flow rate determination of the individual components of the fluid is obtained.

Abstract: A method for determining the flow rates of a fluid comprising a multi-component mixture of a gas and at least one liquid in a pipe, the method comprising the following steps: a. The temperature and pressure of the multi-component mixture is determined, b. the fractions of the multi-component mixture is determined based on at least two measured physical properties of the multi-components mixture and knowledge of the same physical property of the individual components of the multi-component mixture, c. the velocity of the multi component mixture is determined, d. based on the result from step a-c, the flow rate of the individual component of the fluid is determined, characterized by a method for determining the physical properties of at least one of the components of the multi-component mixture where e. an electromagnetic loss or phase measurement is performed, f. a statistical parameter related to the electromagnetic measurement is calculated, g.

Abstract: The present invention regards a manifold for use in a flow system, comprising a longitudinal main pipe section (1) with one inlet (13) connectable to a feed pipe (9) and at least two outlets (14) arranged in a row along the main pipe section (1), where a center axis (15) of the main pipe section (1) during normal use extends in a mainly horizontal direction. The outlets (14) are arranged in a lower half of the main pipe section (1) and connected to outlet pipe sections (22) arranged with a center axis (21) extending with an downward angle from the main pipe section (1). The invention also regards a method for distributing a mixed flow into several pipes and a method for cooling a multiphase fluid.