Fmc Kongsberg Subsea As

Kongsberg Offshore As

Fmc Technologies, Inc.

Framo Engineering As

Navion Asa

Olav Inderberg

Hans-Paul Carlsen

Tor-Øystein Carlsen

Geir Tandberg

Anthony D Muff

Thor-Arne Løvland

Simen Rønne

Bernt Olav Tømmermo

Arild Sundkvist

Pål Fadum

Roy Arne Klevstad

John A Johansen

Bernt Helge Torkildsen

Hans Jørgen Lindland

Jens Grendstad

Egil Tveit

Kaj Hugo Fredriksen

Brian Skeels

Bjørn Jahnsen

Morten Sanderford

Eirik Grønvold

Thor-Arne LØVLAND

Tor-ØYsten Carlsen

Christian Bendixen

Eirik Grøndvold

The present invention relates to a riser joint for a riser with a joint connecting two parts of a riser where the two parts are allowed angular displacement. According to the invention the riser joint comprises means for connection to the two parts of the riser at a distance from the joint, and means for adding a force between the two parts. The invention also relates to a method for reducing bending moments in a riser at a connection between the riser and a subsea installation.

Force element arrangement and method

The invention relates a cylinder release arrangement, wherein at least one cylinder is arranged with a piston within the cylinder, and a cylinder head closing off one end of the cylinder, forming a chamber between the piston and the cylinder head, wherein the cylinder is provided to arrange a leakage of fluid from one side of a piston to the other side of the piston, when the piston is in a given position within the cylinder, and release means are provided for the subsequently controlled release of the cylinder head from the cylinder. The invention also comprises a cylinder arrangement with a release mechanism.

Cylinder release arrangement

The invention relates to a safety joint and a method of operation, the safety joint comprising: a first riser part and a second riser part overlapping in an axial direction and having end connections to be connectable as part of a riser, a release unit, locking the two riser parts together in a not activated mode, the release unit having other modes comprising a partly activated mode and fully activated mode, where the release unit comprises at least one axial extending tension rod connected between the two riser parts, which tension rod is configured to deform plastically before breaking, thereby activating the partly and fully activated modes.

Safety joint

A method of reducing a pressure within a first cavity of a subsea device is disclosed which includes transferring fluid within the first cavity to an accumulator, increasing a pressure of the fluid within the accumulator and, after increasing the pressure of the fluid within the accumulator, transferring at least some of the fluid in the accumulator into a second cavity, wherein the second cavity is at a higher pressure than said first cavity. A device for reducing a pressure within a first cavity of a subsea device is also disclosed which includes a transfer accumulator comprising a piston, the transfer accumulator being in fluid communication with the first cavity and a second cavity, at least one first valve positioned between the first cavity and the transfer accumulator, the at least one first valve adapted to permit fluid flow only from the first cavity to the second cavity, and at least one second valve positioned between the transfer accumulator and the second cavity, the at least one second valve adapted to permit fluid flow only from the transfer accumulator to the second cavity.

Control system

In one illustrative embodiment, the present invention is directed to a device adapted to be positioned adjacent an end of a tool housing of a subsea lubricator, wherein the device includes a structural member that is adapted to be positioned adjacent an end of the tool housing, a non-metallic body coupled to the structural member and a sealing device that is adapted to sealingly engage a wireline extending through the sealing device. The present invention is also directed to a method which includes lowering an assembly toward a tool housing of a subsea lubricator positioned subsea using a wireline for the tool to support a weight of the assembly, wherein the assembly includes a wireline tool and a device including a structural member that is adapted to be positioned adjacent the end of a tool housing, a non-metallic body coupled to the structural member, and a sealing device that is adapted to sealingly engage a wireline extending through the sealing device.

Lightweight device for remote subsea wireline intervention

The invention relates to a safety joint () for a riser consisting of two telescoping parts that are arranged to break in the event of a predetermined axial tension load. The joint also comprises means () for closing the passage in the joint in the event of fracture where the means are activated by means of the forces generated during the separation.

The present invention concerns a pressure containment device for use in a lubricator. The device includes a housing having a first main bore extending throughout its length a number of transversal bores intersecting the main bore. Pairs of opposing rams are located in the transversal bores to grip and seal around a cable in the main bore.

Subsea wireline lubricator

A method and system for sea-based handling/treatment of fluid hydrocarbons (oil) with associated gas include a first separation step in a high-pressure separator () installed on the sea bed, from which is output an oil flow containing an essentially predefined percentage of residual gas. The oil containing residual gas is carried through a riser () up to a surface vessel/production ship (), where it is subjected to a second separation step in a second separator () incorporated in a low-pressure surface plant on board the vessel (), this separated residual gas being used as fuel for direct/indirect generation of electric power for the operation of the underwater and above-water sections of the system. Water and gas produced in the first separation step is returned to a suitable reservoir by the use of a multiphase pump.

Method and system for sea-based handling of hydrocarbons

Protective device for an installation mounted on the seabed

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Kongsberg, Norway

Olav Inderberg