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:
Jul. 11, 2017
Filed:
Feb. 12, 2016
Applicant:
Baker Hughes Incorporated, Houston, TX (US);
Inventor:
Bryan C. Dugas, Breaux Bridge, LA (US);
Assignee:
BAKER HUGHES INCORPORATED, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 47/18 (2012.01); E21B 47/06 (2012.01); E21B 41/00 (2006.01);
U.S. Cl.
CPC ...
E21B 47/18 (2013.01); E21B 41/0085 (2013.01); E21B 47/06 (2013.01);
Abstract
A method enables communication with downhole tools during a 'flow off' condition by energizing at least one sensor and a controller using a local power source only after flow of drilling fluid has been reduced below the threshold flow rate value. Thereafter, the method involves generating the at least one predetermined pattern into the wellbore, detecting the at least one predetermined pattern using the at least one sensor and the controller, and transmitting a signal using the controller in response to the detected at least one predetermined pattern.