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:
Jun. 15, 2021
Filed:
Nov. 21, 2018
Applicant:
Quanta Associates, L.p., Houston, TX (US);
Inventors:
Ronald G. Halderman, Billings, MT (US);
Pablo Esteban Guerra, Houston, TX (US);
Karl D. Quackenbush, Blanchard, MI (US);
Assignee:
Quanta Associates, L.P., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 21/08 (2006.01); E21B 7/04 (2006.01); E21B 21/01 (2006.01);
U.S. Cl.
CPC ...
E21B 21/08 (2013.01); E21B 7/046 (2013.01); E21B 21/01 (2013.01);
Abstract
Working an underground arcuate path around at least a portion of an obstacle with a casing extending into the underground arcuate path, connecting a rotating control device to the casing; and a Venturi device connected to the rotating control device.