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.

Date of Patent:
Dec. 31, 2013

Filed:

Sep. 07, 2011
Applicant:

Stephen B. Wetch, Sugar Land, TX (US);

Inventor:

Stephen B. Wetch, Sugar Land, TX (US);

Assignee:

Union Oil Company of California, El Segundo, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/01 (2006.01); B63B 22/24 (2006.01);
U.S. Cl.
CPC ...
Abstract

A riser support system for use in a body of water comprises a buoyant and ballastable support structure and a plurality of substantially vertical and rigid risers each of which is attached to the inside of the support structure at a location below the center of buoyancy of the support structure and below the surface of the body of water. Usually, each riser passes through the inside of a single tube in the support structure. Typically, the riser support system is used to support a plurality of risers and their surface wellheads inside the hull of an offshore platform, usually in such a manner that the axial movement of the risers and support structure is independent of the axial movement of the hull.


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