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. 13, 2007
Filed:
Mar. 14, 2006
Luisa Chiappa, Nerviano Milan, IT;
Maria Andrei, Mediglia Milan, IT;
Thomas Paul Lockhart, Lodi, IT;
Giovanni Burrafato, Tavazzano Lodi, IT;
Giuseppe Maddinelli, Milan, IT;
Luisa Chiappa, Nerviano Milan, IT;
Maria Andrei, Mediglia Milan, IT;
Thomas Paul Lockhart, Lodi, IT;
Giovanni Burrafato, Tavazzano Lodi, IT;
Giuseppe Maddinelli, Milan, IT;
Eni S.p.A., Rome, IT;
Enitechnologie S.p.A., San Donato Milanese, IT;
Abstract
A process is described for reducing the production of water in oil wells which comprises the injection into the formation around the well of an aqueous solution of one or more polymers selected from those having general formula (I), wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; Xand X, the same or different, are selected from H and CH; R, R, R, the same or different, are selected from C–Cmonofunctional hydrocarbyl groups; and x ranges from 2 to 5.