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. 24, 2020
Filed:
Mar. 23, 2015
Applicant:
Baker Hughes Incorporated, Houston, TX (US);
Inventors:
Angela Anh Doan, Houston, TX (US);
Guido Gustavo Narvaez, Houston, TX (US);
Matthew Grady Kellum, Spring, TX (US);
Assignee:
Baker Hughes, a GE company, LLC, Houston, TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/14 (2006.01); C09K 8/46 (2006.01); C04B 28/02 (2006.01); C09K 8/487 (2006.01); C04B 28/06 (2006.01); C09K 8/467 (2006.01); C09K 8/68 (2006.01); C09K 8/035 (2006.01); C09K 8/88 (2006.01); C09K 8/92 (2006.01); C09K 8/90 (2006.01); C09K 8/70 (2006.01);
U.S. Cl.
CPC ...
C09K 8/46 (2013.01); C04B 28/02 (2013.01); C04B 28/06 (2013.01); C09K 8/467 (2013.01); C09K 8/487 (2013.01); C09K 8/035 (2013.01); C09K 8/685 (2013.01); C09K 8/70 (2013.01); C09K 8/887 (2013.01); C09K 8/90 (2013.01); C09K 8/92 (2013.01); E21B 33/14 (2013.01); Y02W 30/92 (2015.05);
Abstract
The disclosure relates to a method of delaying viscosification of a well treatment fluid within a well by introducing into the well a cement slurry containing particulates of a hydratable viscosifying agent having a minimum of 90% retention on a 20 mesh screen. The presence of the hydratable viscosifying agent in the slurry prevents settling of the cement after the slurry is pumped into the well. The stability of the slurry is thus enhanced by the presence of the hydratable viscosifying agent.