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:
Oct. 29, 2024

Filed:

Dec. 22, 2021
Applicant:

Schlumberger Technology Corporation, Sugar Land, TX (US);

Inventors:

Richard James Windslow, Richmond, TX (US);

Travis Wernecke, Alvin, TX (US);

Mikhail Gotlib, Houston, TX (US);

Henghua Jin, Sugar Land, TX (US);

Karen Braden, Pearland, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/12 (2006.01); E21B 33/128 (2006.01); F16J 15/18 (2006.01);
U.S. Cl.
CPC ...
E21B 33/1216 (2013.01); E21B 33/1208 (2013.01); E21B 33/128 (2013.01); F16J 15/18 (2013.01);
Abstract

A back-up ring system incudes an outer C-ring, an inner C-ring that mates with the outer C-ring, the inner C-ring including a first rupture port, and a ring sheath that fits onto the inner C-ring, the ring sheath including a cut-out region, and a second rupture point. The inner C-ring further includes a blocking segment that angularly offsets the first and second rupture points. The cut-out region of the ring sheath mates with the blocking segment of the inner C-ring. The ring sheath further incudes a '7' shaped cross-sectional profile.


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