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:
Apr. 25, 2017

Filed:

Aug. 29, 2013
Applicant:

National Oilwell Varco, L.p., Houston, TX (US);

Inventors:

Kenneth W. Seyffert, Houston, TX (US);

Voltaire O. Sonnier, Houston, TX (US);

Hoang Nguyen, Houston, TX (US);

Assignee:

NATIONAL OILWELL VARCO, L.P., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/12 (2006.01); E21B 17/08 (2006.01); E21B 33/12 (2006.01); E21B 17/07 (2006.01); E21B 19/00 (2006.01);
U.S. Cl.
CPC ...
E21B 17/085 (2013.01); E21B 17/07 (2013.01); E21B 19/004 (2013.01); E21B 33/12 (2013.01);
Abstract

A packer assembly for sealing about a subsea riser is provided. The subsea riser is operatively connectable between a surface platform and subsea equipment. The packer assembly includes a packer housing and at least one packer. The packer housing is positionable about a telescoping assembly. The telescoping assembly operatively connects the subsea riser to the surface platform. The packer(s) are positionable along an inner surface of the packer housing to form a seal with the telescoping assembly and include a plurality of packer segments. Each of the packer segments has male and female connectors on each end thereof matably connectable to the male and female connectors of another of the segments to form a seal connection therebetween. The seal connection defines a non-linear leak path whereby leakage of fluid between the plurality of segments is resisted.


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