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:
Feb. 07, 2023
Filed:
Apr. 22, 2022
Applicant:
Nabors Drilling Technologies Usa, Inc., Houston, TX (US);
Inventors:
Assignee:
NABORS DRILLING TECHNOLOGIES USA, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 15/00 (2006.01); E04B 1/343 (2006.01); E04B 1/34 (2006.01); E04H 12/34 (2006.01); E21B 19/07 (2006.01); E21B 19/083 (2006.01); E21B 21/10 (2006.01); E21B 19/10 (2006.01);
U.S. Cl.
CPC ...
E04B 1/343 (2013.01); E04B 1/3404 (2013.01); E04H 12/34 (2013.01); E21B 15/00 (2013.01); E21B 15/006 (2013.01); E21B 19/07 (2013.01); E21B 19/083 (2013.01); E21B 21/106 (2013.01); E21B 19/10 (2013.01);
Abstract
A mast assembly for a drilling rig includes a mast formed from a plurality of mast subunits. The mast assembly includes a lower drilling machine, upper drilling machine, and upper mud assembly, each of which is coupled to and movable vertically relative to the mast. The mast subunits are separable when the mast is in a transport configuration such that the LDM is positioned in a first subunit and the UDM is in a second subunit of the mast when the mast is in the transport configuration. The mast assembly may be used during a continuous drilling operation.