The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 05, 2002
Filed:
Aug. 10, 1999
Pierre Armand Thomas, Puteaux, FR;
Technip France, Paris La Defense Cedex, FR;
Abstract
A method of intervention on the seabed (F) using a free end of one riser ( ) originating from a semi-submersible platform ( ) designed for producing oil from a deposit, at a number of distinct intervention points ( ), includes the following successive steps: tethering the platform ( ) to immobilize it in a position floating over the deposit; installing the riser ( ) connecting the floating platform ( ) to the seabed (F) for intervention at a first intervention point ( ); carrying out an intervention at the first intervention point ( ); disengaging the free end of the riser ( ) from the first intervention point ( ), while keeping this end submerged; moving the free end of the riser ( ) with respect to the seabed (F) towards a second intervention point ( ), while keeping the floating platform ( ) in place; and carrying out an intervention at the second intervention point ( ).