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. 21, 2024
Filed:
Feb. 20, 2020
Applicant:
National Oilwell Varco, L.p., Houston, TX (US);
Inventor:
Andrew Ian McKenzie, Cypress, TX (US);
Assignee:
NATIONAL OILWELL VARCO, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 3/02 (2006.01); E21B 19/16 (2006.01);
U.S. Cl.
CPC ...
E21B 3/022 (2020.05); E21B 19/16 (2013.01);
Abstract
A dual activity top drive may include a mechanized system configured for suspension from a traveling block of a drill rig and for engaging and rotating a drill string from the top of the drill string. The dual activity top drive may also include a primary pipe handling system suspended from the mechanized system and configured for handling a pipe string and an auxiliary pipe handling system suspended from the mechanized system and configured for handling a segment of pipe to be added or removed from the pipe string.