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:
Aug. 02, 2011
Filed:
Feb. 04, 2008
Applicants:
Stefan Alexandru Stoian, Calgary, CA;
Carl Keith Smith, Calgary, CA;
Inventors:
Stefan Alexandru Stoian, Calgary, CA;
Carl Keith Smith, Calgary, CA;
Assignee:
Techstar Energy Services Inc., Calgary, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/035 (2006.01); E21B 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract
A drilling fluid comprising: a non-ionic surfactant including at least one of a branched alcohol ethoxylate and a capped alcohol ethoxylate, a detergent builder and a viscosifier.