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. 17, 2010
Filed:
Aug. 16, 2006
Alexander Shapovalov, Lafayette, LA (US);
Alejandro Pena, Ciudad Ojeda, VE;
Bernhard Lungwitz, Vernal, UT (US);
Rene Schuurman, Houston, TX (US);
Alexander Shapovalov, Lafayette, LA (US);
Alejandro Pena, Ciudad Ojeda, VE;
Bernhard Lungwitz, Vernal, UT (US);
Rene Schuurman, Houston, TX (US);
Schlumberger Technology Corporation, Sugar Land, TX (US);
Abstract
Methods for treating wellbores using fluids containing a sphingan heteropolysaccharide which contributes viscosity stability and a decrease in friction pressure. Some methods are clean-out operations using recyclable-viscosity fluids containing at least a sphingan heteropolysaccharide and an optional salt. Others include methods of pumping fluids incorporating sphingan heteropolysaccharides to reduce pumping frictional pressure.