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:
Sep. 01, 2020

Filed:

Jun. 14, 2017
Applicants:

Conrad Kao, Spring, TX (US);

Eugene Stolboushkin, Houston, TX (US);

Inventors:

Conrad Kao, Spring, TX (US);

Eugene Stolboushkin, Houston, TX (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 33/128 (2006.01); B33Y 80/00 (2015.01);
U.S. Cl.
CPC ...
E21B 33/1208 (2013.01); B33Y 80/00 (2014.12); E21B 33/128 (2013.01);
Abstract

A downhole system includes a packer assembly including a backup ring. The backup ring includes a plurality of nested leaves nested sequentially in a circumferential direction with adjacent circumferentially positioned leaves to collectively form a substantially circular shape. Each leaf includes a receiving section and an insertion section, the receiving section receiving an insertion section of an adjacent leaf. Upon radial expansion of the backup ring, the plurality of nested leaves fan out in the circumferential direction.


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