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:
Dec. 03, 2013
Filed:
Feb. 08, 2010
Applicant:
You Sun LI, Houston, TX (US);
Inventor:
You Sun Li, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/01 (2006.01);
U.S. Cl.
CPC ...
Abstract
An offshore riser system comprising a tubular from a sea floor to a sea surface comprising a first horizontal portion at the sea floor; a second vertical portion near the sea surface; and a third curved portion located between the first and second portions; and a buoyancy module connected to the second portion, adapted to maintain a shape of the curved portion and enable a connection of a vessel to the second portion.