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. 05, 2019
Filed:
Mar. 17, 2015
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Vijay Gupta, Cary, NC (US);
Mark Roberson, Raleigh, NC (US);
David F. Myers, Cambridge, MA (US);
James Lynn Davis, Holly Springs, NC (US);
David Dausch, Raleigh, NC (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/16 (2006.01); C04B 28/02 (2006.01); C09K 8/42 (2006.01); C09K 8/467 (2006.01); C04B 40/00 (2006.01); C04B 40/06 (2006.01); C04B 103/10 (2006.01);
U.S. Cl.
CPC ...
C04B 28/02 (2013.01); C04B 40/0032 (2013.01); C09K 8/42 (2013.01); C09K 8/467 (2013.01); E21B 33/16 (2013.01); C04B 40/0641 (2013.01); C04B 2103/10 (2013.01);
Abstract
A cementing method includes positioning a bottom plug at a casing shoe, rupturing the bottom plug, signaling when a top plug reaches a target position, and releasing a chemical into a cement slurry below the top plug in response to the signaling. The signal may comprise a mechanical trigger changing its position due to movement of the top plug past the target position.