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:
Mar. 25, 2008
Filed:
Feb. 25, 2005
Eric J. Beckman, Aspinwall, PA (US);
Ronald A. Losasso, Vonore, TN (US);
Janice E. Losasso, Vonore, TN (US);
Eric J. Beckman, Aspinwall, PA (US);
Ronald A. LoSasso, Vonore, TN (US);
Janice E. LoSasso, Vonore, TN (US);
University of Pittsburgh - of the Commonwealth of Higher Education, Pittsburgh, PA (US);
Abstract
A composition includes water having a salinity of at least 1 ppt, at least one hydrophilic polymer containing primary (—NH) and/or secondary (—NHR) amine groups and at least one saccharide containing a reducible function. A method of changing the permeability of a subterranean formation includes the step of injecting into a subterranean formation a composition comprising water, at least one hydrophilic polymer containing at least two groups which are independently the same or different a primary amine group or a secondary amine group and at least one saccharide containing a reducible function.