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:
Oct. 28, 2008
Applicants:
Håvar Ilstad, Trondheim, NO;
Hroar Andreas Nes, Trondheim, NO;
Inventors:
Håvar Ilstad, Trondheim, NO;
Hroar Andreas Nes, Trondheim, NO;
Assignee:
Statoil Petroleum AS, Stavanger, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 17/025 (2006.01); B01D 19/00 (2006.01); E21B 43/36 (2006.01); B01D 17/02 (2006.01); B65D 90/02 (2006.01); B65D 88/78 (2006.01); E21B 43/01 (2006.01);
U.S. Cl.
CPC ...
E21B 43/36 (2013.01); B01D 17/0208 (2013.01); B01D 19/00 (2013.01); B65D 90/022 (2013.01); B65D 88/78 (2013.01); E21B 43/01 (2013.01);
Abstract
A large diameter subsea gravity separator for ultra deep water conditions of 2000 to more than 4000 m includes a vessel having a shell which defines a cylindrical tubular portion and closure portions at axially both ends of the tubular portion. The shell is a sandwich shell which is dimensioned to provide for a predetermined collapse resistance of at least MPa and includes an inner steel layer, an outer steel layer and a concrete layer completely filling the space between the inner steel layer and the outer steel layer.