System for installing subsea wellhead protective silo
CA 1248870 A · Owner: Lme Petroscope Limited · Inventors: Dallimer, David S.; Nixon, Giles M.B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Abstract:, A subsea wellhead protective silo and excavating module therefor is described. For installation of the protective silo in the sea floor, an excavating module is mounted within the silo. This excavating module has an excavating member within the base of the silo such as to simultaneously excavate a hole in the sea floor and position the silo therein. The silo and excavating module are designed to make use of hydrostatic pressure to aid penetration of the silo into the excavation. When the silo is in position, the excavating module is removed through the top of the silo for use in another installation.
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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 17, 1989. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 17, 2006.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.