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:
Dec. 26, 2023

Filed:

Nov. 10, 2021
Applicant:

Baker Hughes Oilfield Operations Llc, Houston, TX (US);

Inventors:

Samuel Cheng, Houston, TX (US);

Xichang Zhang, Houston, TX (US);

Prashant Patel, Tomball, TX (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/04 (2006.01); E21B 23/02 (2006.01); E21B 33/12 (2006.01);
U.S. Cl.
CPC ...
E21B 33/04 (2013.01); E21B 23/02 (2013.01); E21B 33/12 (2013.01); E21B 2200/01 (2020.05);
Abstract

A wellhead annulus packoff and an associated method of energizing and de-energizing are disclosed. The wellhead annulus packoff includes at least one seal element, a hanger lockdown ring, a hanger lockdown energizing ring, a seal lockdown ring, a seal lockdown energizing ring, and one or more mechanical conditional operators, where the at least one seal element adapted to be energized with a first energizing force applied through a seal lockdown energizing ring and with the one or more mechanical conditional operators being engaged, where the seal lockdown ring is adapted to be energized with the first energizing force and with the one or more mechanical conditional operators being disengaged, and where the hanger lockdown ring is adapted to be energized with a second energizing force applied through a hanger lockdown energizing ring.


Find Patent Forward Citations

Cheng, Samuel. (2023). Bi-directional wellhead annulus packoff with integral seal and hanger lockdown ring (U.S. Patent No. 11851972). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11851972

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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