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:
Nov. 12, 2019
Filed:
Sep. 22, 2017
Applicant:
Nabors Drilling Technologies Usa, Inc., Houston, TX (US);
Inventor:
Brian Dale Dewald, Calgary, CA;
Assignee:
Nabors Drilling Technologies USA, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); E21B 47/06 (2012.01); E21B 37/02 (2006.01);
U.S. Cl.
CPC ...
E21B 47/06 (2013.01); E21B 33/16 (2013.01); E21B 37/02 (2013.01);
Abstract
A system that can include a first sensor disposed within a tubular and configured to monitor a pressure within the tubular, a second sensor disposed within the tubular downstream of the first sensor and configured to monitor the pressure within the tubular, and a controller. The controller being configured to detect a launch of the cement plug when the first sensor detects a first pressure drop and when the second sensor detects a second pressure drop, where the second pressure drop occurs after the first pressure drop within a predetermined elapsed time range.