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:
May. 23, 2017
Filed:
Mar. 29, 2013
Applicant:
Halliburton Energy Services, Inc., Houston, TX (US);
Inventors:
Thomas S. Cortner, Houston, TX (US);
Charles R. Landis, Houston, TX (US);
Eric B. Frantz, Houston, TX (US);
Assignee:
Halliburton Energy Services, Inc., Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/00 (2006.01); C09K 8/24 (2006.01);
U.S. Cl.
CPC ...
E21B 7/00 (2013.01); C09K 8/24 (2013.01);
Abstract
Beneficiating drilling fluids that comprise low-quality clay and high-quality clay may be performed by adding a polymer and a high-quality clay to a fluid that comprises an aqueous base fluid and a low-quality clay, so as to yield a drilling fluid, wherein the ratio of the low-quality clay to the high-quality clay is about 90:10 to about 80:20.