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.
Patent No.:
Date of Patent:
Jan. 08, 2019
Filed:
Jan. 21, 2015
Applicant:
Managed Pressure Operations Pte. Ltd., Singapore, SG;
Inventors:
Christian Leuchtenberg, Singapore, SG;
Austin Johnson, Houston, TX (US);
Patrick David Savage, Queensland, AU;
Assignee:
MANAGED PRESSURE OPERATIONS PTE. LTD., Singapore, SG;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/08 (2006.01); E21B 47/01 (2012.01); E21B 3/00 (2006.01); E21B 21/08 (2006.01);
U.S. Cl.
CPC ...
E21B 33/085 (2013.01); E21B 3/00 (2013.01); E21B 21/08 (2013.01); E21B 47/01 (2013.01);
Abstract
A seal assembly for use in a pressure containment device for containing a fluid pressure in an annular space around a drill string while allowing the drill string to rotate in the pressure containment device. The seal assembly includes a seal comprising and an inner surface and a tubular body, and a wear sensor embedded in the tubular body. The wear sensor emits an alert signal when the inner surface of the seal has been worn away by a preset amount.