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:
Jan. 02, 2018

Filed:

Oct. 31, 2013
Applicant:

Vetco Gray Inc., Houston, TX (US);

Inventors:

Baozhi Zhu, Houston, TX (US);

Jeffrey Allen Raynal, Houston, TX (US);

Nicholas Peter Gette, Houston, TX (US);

Assignee:

Vetco Gray Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/03 (2006.01); E21B 33/04 (2006.01); E21B 33/00 (2006.01);
U.S. Cl.
CPC ...
E21B 33/03 (2013.01); E21B 33/04 (2013.01); E21B 2033/005 (2013.01);
Abstract

An well assembly having a housing with an inner surface, the assembly including a tubular member inserted in the housing and having an outer surface. The assembly further includes a plurality of protrusions extending from one of the inner or outer surfaces, the protrusions separated by gaps defined between adjacent protrusions. In addition, the well assembly includes a metal to metal seal pressed against and deformed by the protrusions. A plurality of hollow tubes are provided for insertion in the gaps between the protrusions, the tubes being collapsible upon engagement with the metal to metal seal.


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