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:
Jul. 31, 2007
Filed:
Dec. 09, 2004
Applicants:
Arvind D. Patel, Sugar Land, TX (US);
Emanuel Stamatakis, Houston, TX (US);
Eric Davis, Houston, TX (US);
Jim Friedheim, Spring, TX (US);
Inventors:
Arvind D. Patel, Sugar Land, TX (US);
Emanuel Stamatakis, Houston, TX (US);
Eric Davis, Houston, TX (US);
Jim Friedheim, Spring, TX (US);
Assignee:
M-I L.L.C., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
A water-base fluid for use in drilling wells and other drilling operation includes a shale clay which swells in the presence of water. The fluid preferably includes: an aqueous based continuous phase, and a shale hydration inhibition agent having the formula:H—(OR)—[—NH—CH—CH—CH—O—CH—CH—NH—]—(R'O)—H