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:
Aug. 17, 1999
Filed:
Jun. 23, 1998
Charles O Etheridge, Houston, TX (US);
Martin J Kraft, Houston, TX (US);
Brent A Salyer, Houston, TX (US);
FMC Corporation, Chicago, IL (US);
Abstract
A spread mooring arrangement is provided for use in deep water (greater than 200 meters) when it is advantageous to maximize the clearance between shuttle tankers used for product offloading and the anchor legs associated with a spread mooring of the permanently moored tanker. Mooring insert tubes are provided at the bow and stern of the vessel. Bow mooring lines extend from the sea floor, through an opening of the bottom of the hull of the vessel and via a bow mooring insert tube for securement on a chain pull-up deck. Stern mooring lines extend from the sea floor through an opening in the bottom of the hull of the vessel and via a stern mooring insert tube for securement on a chain pull-up deck. Space is available on one side of the vessel for a porch for securement of production risers, work over risers and control umbilicals, thereby providing flexibility of the use of the vessel for the circumstance where production methods for the oil filled change during its lifetime or where other fields need to be coupled to the vessel with risers.