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:
May. 12, 2020
Filed:
Sep. 16, 2016
Applicant:
National Oilwell Varco, L.p., Houston, TX (US);
Inventors:
Travis James Miller, Cypress, TX (US);
Frank Benjamin Springett, Spring, TX (US);
Richard Watson Cowan, Houston, TX (US);
Assignee:
NATIONAL OILWELL VARCO, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 41/04 (2006.01); E21B 19/00 (2006.01); E21B 33/035 (2006.01); E21B 33/038 (2006.01); E21B 33/064 (2006.01); E21B 47/06 (2012.01);
U.S. Cl.
CPC ...
E21B 41/04 (2013.01); E21B 19/002 (2013.01); E21B 19/008 (2013.01); E21B 33/038 (2013.01); E21B 33/0355 (2013.01); E21B 33/064 (2013.01); E21B 47/06 (2013.01); E21B 47/065 (2013.01);
Abstract
A method for replacing a first control pod of a BOP stack includes (a) lowering a control pod exchange device subsea. In addition, the method includes (b) coupling the control pod exchange device to the BOP stack. Further, the method includes (c) transferring the first control pod from the BOP stack to the control pod exchange device after (b). Still further, the method includes (d) lifting the control pod exchange device to the surface after (c).