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:
Jun. 20, 2017

Filed:

Mar. 14, 2016
Applicant:

Chevron U.s.a. Inc., San Ramon, CA (US);

Inventors:

Christopher Allen Kassner, Houston, TX (US);

Antonio C. F. Critsinelis, Kingwood, TX (US);

Helena Miao, Houston, TX (US);

Keiron Anson, Perth, AU;

Assignee:

CHEVRON U.S.A. INC., San Ramon, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 17/01 (2006.01); F16L 1/16 (2006.01); F16L 1/028 (2006.01); E21B 43/01 (2006.01); E21B 19/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/015 (2013.01); E21B 17/01 (2013.01); E21B 17/012 (2013.01); E21B 19/004 (2013.01);
Abstract

Disclosed are riser assemblies for connecting a topside structure and a subsea production facility. The assembly includes an upper riser having an upper end terminating at the topside structure, a flow diverting structure having an upper interface configured to connect to the upper riser and a lower interface configured to connect to at least two lower risers such that the upper riser is in communication with the at least two lower risers. Methods of deployment of the riser assemblies are also disclosed. The method includes connecting an upper riser to the topside structure, and connecting a first lower riser to a lower bore of the flow diverting structure such that the upper riser, the flow diverting structure and the first lower riser are connected, and the upper riser is in fluid communication with the first lower riser. Additional lower risers can be installed at a later time if desired.


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