Onesubsea IP UK Limited

Nuheart As

Knut Harald Klepsvik

Philip Jon Haarstad

Vegard Tuseth

Shawn Patterson

Anders Brunvold

Helge Dale

Hans Fredrik Kjellnes

Åsmund Valland

Ina Ekeberg

Svein-Arne Marthinussen

Per Bloch Helmers

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.

System for dewatering a flowline including a multiphase pump connected at a lower end of the flowline

A vertical rotating system that includes a first vertical shaft that rotates. The first vertical shaft is oriented such that the gravitational force is substantially parallel to the first vertical shaft. A radial bearing extends about a first portion of the first vertical shaft. A first impeller sectioned couples to the first vertical shaft and rotates in a first direction to pump a first fluid. A first stator surrounds the first vertical shaft. The first stator defines a first groove that extends about a second portion of the first vertical shaft. The first groove receives a second fluid. A pressure of the second fluid drives the first vertical shaft away from the first groove.

Bearing system for vertical shafts

An intracorporeal device is provided for supporting heart function of a patient. The intracorporeal device is configured to be secured across at least two anatomical walls of the heart. The intracorporeal device is configured to be secured to one or more anatomical walls by a connector. The connector is arranged to be positioned across one or more anatomical walls.

Ventricular assist device and method

A method is provided for supporting heart function of a patient. The method comprises the step of securing an intracorporeal device across at least two anatomical walls of the heart, wherein at least one anatomical wall is an intra-cardiac wall and a least one anatomical wall is an extra-cardiac wall.

A rotating machine including a rotor operable to rotate about a centerline axis and subjected to axial thrust loads along the centerline axis during operation; a balance piston engaged with the rotor; a stator positioned around the balance piston and the rotor wherein a fluid passageway extends between the internal face of the stator and the external face of the balance piston; the fluid passageway including at least one cavity. A balance piston for a rotating machine including at least two segments arranged with a shift in diameter between each other.

Growing community of inventors

Kolltveit, Norway

Knut Harald Klepsvik