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:
Sep. 02, 2014
Filed:
Sep. 16, 2011
Antonio C. F. Critsinelis, Kingwood, TX (US);
Christopher A. Kassner, Houston, TX (US);
Farzan Parsinejad, Houston, TX (US);
Ahmed Omar, Katy, CA (US);
Antonio C. F. Critsinelis, Kingwood, TX (US);
Christopher A. Kassner, Houston, TX (US);
Farzan Parsinejad, Houston, TX (US);
Ahmed Omar, Katy, CA (US);
Chevron U.S.A. Inc., San Ramon, CA (US);
Abstract
Disclosed are methods, systems and apparatus for circulating fluid within the annulus of a flexible pipe used in a riser in an offshore hydrocarbon production facility. Fluid, such corrosion inhibitors, can be introduced into the annulus by pumping fluid from a storage tank located on a platform or vessel into tubes within the annulus. Use of the system to flow the fluid through the annulus can prevent or reduce corrosion of the steel members within the annulus and increase the fatigue life of the riser.