1
Knut Børseth, Ola Often: Guide device for production risers for petroleum production with a “dry tree semisubmersible” at large sea depths. PGS Offshore Technology, Rothwell Figg Ernst & Manbeck, April 23, 2002: US06375391 (18 worldwide citation)

A system for use in petroleum production at sea includes a guide frame for one or more riser pipes, on a semisubmersible production vessel. One or more main buoyancy member are arranged separately on at least one riser to carry the main part of the riser's weight. Each riser separately carries ...


2
Bjarne Olsen, Petter Grinde, Tron Dahl, Ola Often: Device for loading and/or unloading flowable media. Scana AMT, FPS Ocean, Birch Stewart Kolasch & Birch, November 10, 2009: US07614927 (5 worldwide citation)

A device for loading and/or unloading of flowable media includes a buoy connected to at least one riser and a vessel provided with a pick-up space for the buoy. The pick-up space ends at the bottom of the vessel, the buoy being provided with a buoyancy device and including a first part connected to ...


3
Ola Often, Sondre Hagen: Device for storing tubulars and devices for handling of tubulars. Fred Olsen Energy ASA, Nixon & Vanderhye PC, November 8, 2011: US08052369 (5 worldwide citation)

Device for storing tubular on a drilling and/or production installation, comprising a shaft (8, 9, 10, 11) to accommodate a plurality of tubular in a substantially vertical position and a guide (15, 22) that is moveable above the shaft (8, 9, 10, 11). The device comprises means for displacing the gu ...


4
Bjarne Olsen, Petter Grinde, Tron Dahl, Ola Often: Device for loading and/or unloading flowable media. Scana AMT, FPS Ocean, Birch Stewart Kolasch & Birch, August 30, 2007: US20070202758-A1

A device for loading and/or unloading of flowable media, comprising a buoy connected to at least one riser (6) and a vessel (30) provided with a pick-up space (77) for the buoy. The pick-up space (77) ends at the bottom of the vessel (30), the buoy being provided with buoyancy means (10) and compris ...


5
Ola Often, Sondre Hagen: Device for Storing Tubulars and Devices for Handling of Tubulars. Nixon & Vanderhye PC, May 28, 2009: US20090136327-A1

Device for storing tubular on a drilling and/or production installation, comprising a shaft (8, 9, 10, 11) to accommodate a plurality of tubular in a substantially vertical position and a guide (15, 22) that is moveable above the shaft (8, 9, 10, 11). The device comprises means for displacing the gu ...



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