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| Number | Title | Issue Date |
| 8087466 | Centralization and running tool and method The invention relates to a centralization and running tool (CTR) in a subsea installation in connection with offshore related oil and gas exploration, where the subsea installation (SCM) is arranged to be placed on the ocean bottom or a drilling template and compris... | 01/03/2012 |
| 7958948 | Method and system for return of drilling fluid A system and method is described for use and return of drilling fluid/cuttings from a well, which is drilled on the ocean floor, in connection with offshore related oil production and gas production, where, from a drilling rig or drilling vessel (10), a drill... | 06/14/2011 |
| 7677329 | Method and device for controlling drilling fluid pressure A method of reducing drilling fluid pressure during subsea drilling, where drilling fluid is pumped down into a borehole and then flows back to a drilling rig via the lined and/or unlined sections of the borehole and a liner, wherein the drilling fluid pressure is c... | 03/16/2010 |
| 7044226 | Method and a device for removing a hydrate plug A method and a device for removing a hydrate plug (38) from a pipeline (16), wherein a pig (1), which is connected to an umbilical (2) extending to surface, is displaced down into the pipeline (16) until proximity of the hydrate pl... | 05/16/2006 |
