Statoil Petroleum as

Compressed Energy Technology as

Peter Jenkins

Harald Holden

Ola Ystgaard

Kåre G Breivik

Svein Are Lotveit

Gunnar Axelsson

Hugo Gustavsen

Raymond Heggholmen

A safety device and method for protection of the integrity of well barrier(s) or other interfacing structure(s) at an end of a riser string or a hose includes a releasable connection in the riser string or hose, the releasable connection arranged to release or disconnect during given predefined conditions in order to protect the well barrier(s) or other interfacing structure(s). The safety device safety device includes at least one sensor to monitor at least one of tension loads, bending loads, internal pressure loads and temperature. The sensor provides measured data relating to at least one of tension loads, bending loads, internal pressure loads and temperature. An electronic processing unit receives and interprets the measured data from the sensor. An electronic, hydraulic or mechanical actuator or switch is arranged to receive a signal from the electronic processing unit and initiate a release or disconnect of the releasable connection.

Electronic combined load weak link

A method and a safety device are disclosed for protection of well barrier(s) against excessive bending moments from a riser. The safety device is arranged to detect critical bending loads in or in between the well barrier(s) and/or riser, and may include: a device for detecting changes in a curvature between a load carrying riser pipe and an unloaded stiff body attached to or in the vicinity of the riser pipe, said device for detecting changes in the curvature being arranged to measure a relative distance between the load carrying riser pipe and the unloaded stiff body, and a device for triggering disconnection of a releasable riser connector when the distance between the load carrying riser pipe and the unloaded stiff body reaches a predefined critical distance.

Mechanical bending weak link

A composite pressure vessel comprised of an inner fluid tight liner and an outer reinforced polymer layer. An end boss comprising a short pipe section arranged through an opening of the vessel and extending to a lower end with an outwardly extending flange on the pipe section arranged between the outer layer and the inner liner, and a lid arranged at an upper end of the pipe section. The inner liner extends upwards through the opening of the pipe section to the lid with at least one gas tight seal interfacing against the inner liner. A pre-tensioning device is arranged on the outside of the inner liner, in a groove nearest to the lid and pipe section, around the upper end of the pipe section, which, regardless of the pressure in the vessel, presses the inner liner against the at least one gas tight seal.

End boss and composite pressure vessel

Vessel comprising a number of composite storage tanks for transport of compressed natural gas (CNG) or a combination of gas and liquid, which tanks have an elongated, cylindrical intermediate section and a lower end and an upper end, the tanks being arranged side-by-side vertically standing in the vessel, distinguished in that the hull, the bulkheads and the deck of the vessel form a closed space enveloping all tanks except from the upper end of each tank or selected tanks, for which tanks the upper end extends sealingly out of the closed space,

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Nesbru, Norway

Peter Jenkins