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:
Jun. 26, 2012
Filed:
Jul. 08, 2008
Richard D. Hutchins, Sugar Land, TX (US);
Ann M. W. Hoefer, Houston, TX (US);
Stanley B. Mcconnell, Katy, TX (US);
Alejandro Pena, Houston, TX (US);
Richard D. Hutchins, Sugar Land, TX (US);
Ann M. W. Hoefer, Houston, TX (US);
Stanley B. McConnell, Katy, TX (US);
Alejandro Pena, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
This invention relates to fluid compositions used in treating a subterranean formation. In particular, the invention is aqueous wellbore treatment compositions which are foams containing a viscosifying agent, a foam extender, a gas component, and a surfactant, as well as methods of forming such fluids, and uses thereof. The viscosifying agent may be a hydratable polymer, viscoelastic surfactant, or heteropolysaccharide. The foam extender may be a material such as a polyoxyalkyleneamines, ethylenepolyamines, tertiary polyamines, bicarbonate, carbonate, phosphate, or sesquicarbonate.