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. 16, 2010
Filed:
Feb. 07, 2008
Applicant:
Louise Bailey, Cambridgeshire, GB;
Inventor:
Louise Bailey, Cambridgeshire, GB;
Assignee:
M-I, L.L.C., Houston, TX (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 8/06 (2006.01); C09K 8/60 (2006.01); E21B 37/06 (2006.01); E21B 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A water based drilling fluid contains as additive one or more alkyl ethoxylates having the formula RO(CHCHO)H; The fluid further contains one or more viscosifying agents, and is substantially clay-free.