Patents by Inventor Luisa Chiappa

Luisa Chiappa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for reducing the production of water in oil wells
    Patent number: 7188673
    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; X1 and X2, the same or different, are selected from H and CH3; R1, R2, R3, the same or different, are selected from C1–C10 monofunctional hydrocarbyl groups; and x ranges from 2 to 5.
    Type: Grant
    Filed: March 14, 2006
    Date of Patent: March 13, 2007
    Assignees: Eni S.p.A., Enitechnologie S.p.A.
    Inventors: Luisa Chiappa, Maria Andrei, Thomas Paul Lockhart, Giovanni Burrafato, Giuseppe Maddinelli
  • Process for reducing the production of water in oil wells
    Publication number: 20060157245
    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 (1) [] wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H an CH3; R1, R2, R3, the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups; x ranges from 2 to 5.
    Type: Application
    Filed: March 14, 2006
    Publication date: July 20, 2006
    Applicants: ENI S.p.A., ENITECNOLOGIE S.p.A.
    Inventors: Luisa Chiappa, Maria Andrei, Thomas Lockhart, Giovanni Burrafato, Giuseppe Maddinelli
  • Process for reducing the production of water in oil wells
    Patent number: 7004253
    Abstract: A process is described for reducing the production of water in oil wells, with temperatures of up to (90° C.), which comprises the injection in 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 (0.40) to (0.70), preferably from (0.5) to (0.65); m ranges from (0.15) to (0.65), preferably from (0.3) to (0.5); p ranges from (0.02) to (0.20), preferably from (0.05) to (0.
    Type: Grant
    Filed: May 13, 2002
    Date of Patent: February 28, 2006
    Assignees: Eni S.p.A., Enitecnologie S.p.A.
    Inventors: Luisa Chiappa, Maria Andrei, Thomas Paul Lockhart, Giovanni Burrafato, Giuseppe Maddinelli
  • Process for reducing the production of water in oil wells
    Publication number: 20050098320
    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 (1) [ ] wherein: n ranges from 0.70 to 0.98; m ranges from 0.30 to 0.02; n+m=1; X1 and X2, the same or different, are selected from H an CH3; R1, R2, R3, the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups; x ranges from 2 to 5.
    Type: Application
    Filed: May 10, 2002
    Publication date: May 12, 2005
    Inventors: Luisa Chiappa, Maria Andrei, Thomas Lockhart, Giovanni Burrafato, Giuseppe Maddinelli
  • Process for reducing the production of water in oil wells
    Publication number: 20040144542
    Abstract: A process is described for reducing the production of water in oil wells, with temperatures of up to (90° C.), which comprises the injection in 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 (0.40) to (0.70), preferably from (0.5) to (0.65); m ranges from (0.15) to (0.65), preferably from (0.3) to (0.5); p ranges from (0.02) to (0.20), preferably from (0.05) to (0.10); n+m+p=1; x1 is selected from H and CH3; R1, R2 the same or different, are selected from C1-C10 monofunctional hydrocarbyl groups.
    Type: Application
    Filed: October 7, 2003
    Publication date: July 29, 2004
    Inventors: Luisa Chiappa, Maria Andrei, Thomas Paul Lockhart, Giovanni Burrafato, Giuseppe Maddinelli