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:
Aug. 08, 2017
Applicant:
BJ Services, Llc, Tomball, TX (US);
Inventors:
Roderick B. Pernites, Spring, TX (US);
Angel Gonzalez, Katy, TX (US);
Felipe Padilla Florencia, Spring, TX (US);
Assignee:
BJ Services, LLC, Tomball, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/40 (2006.01); E21B 21/00 (2006.01); E21B 33/14 (2006.01); E21B 37/00 (2006.01);
U.S. Cl.
CPC ...
C09K 8/40 (2013.01); E21B 21/003 (2013.01); E21B 33/14 (2013.01); E21B 37/00 (2013.01);
Abstract
Spacer fluids are provided for use in cementing liners in oil and gas wells. The fluids comprise pumice and a suspending agent. Pumice is the first-in weighting agent and is added in amounts sufficient to stabilize the rheology of the fluid over time and temperature.