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:
Apr. 03, 2001
Filed:
Jan. 21, 1999
Applicant:
Inventor:
Jafar Korloo, Moorpark, CA (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B63B 2/220 ; F21B 4/301 ;
U.S. Cl.
CPC ...
B63B 2/220 ; F21B 4/301 ;
Abstract
An offshore hydrocarbon production system includes a spar (,) that floats at the sea surface, a subsea buoy (,) lying under the spar and hanging from it, and one or more risers (,) that extend up to the subsea buoy and are coupled therethrough to the spar. The subsea buoy is initially negatively buoyant to ballast of the spar and keep it upright, but the subsea buoy can be made positively buoyant so the spar can be moved away and a workover vessel (,) moved over the subsea buoy. The subsea buoy can be coupled to the spar by one or more chains (,A) extending between them, and one or more flexible hoses (,) extending between them.