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. 19, 1991
Filed:
Sep. 14, 1990
Applicant:
Inventors:
Edward E Miller, Plano Collin, TX (US);
Peter J Strydom, Morriston, NJ (US);
Assignee:
American Cyanamid Company, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E02D / ;
U.S. Cl.
CPC ...
166295 ; 166294 ; 166300 ; 405 52 ; 405154 ; 523130 ; 523132 ;
Abstract
A process of profile modifying permeable soils with an environmentally safe composition of a non-toxic water-soluble polymer, a redox couple of a water-soluble ferrous salt and a non-toxic, oxidizing agent which are mixed in water and pumped into a subterranean formation wherein ferrous ion is oxidized to ferric ion to gel the polymer making the subterranean formation impermeable.