Patents by Inventor Asoke Kumar De

Asoke Kumar De 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).

  • Waterflood control system for maximizing total oil recovery
    Patent number: 7248969
    Abstract: A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.
    Type: Grant
    Filed: November 19, 2004
    Date of Patent: July 24, 2007
    Assignee: The Regents of the University of California
    Inventors: Tadeusz Wiktor Patzek, Dimitriy Borisovich Silin, Asoke Kumar De
  • Waterflood control system for maximizing total oil recovery
    Patent number: 6904366
    Abstract: A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.
    Type: Grant
    Filed: April 2, 2002
    Date of Patent: June 7, 2005
    Assignee: The Regents of the University of California
    Inventors: Tadeusz Wiktor Patzek, Dimitriy Borisovich Silin, Asoke Kumar De
  • Waterflood control system for maximizing total oil recovery
    Publication number: 20030051873
    Abstract: A control system and method for determining optimal fluid injection pressure is based upon a model of a growing hydrofracture due to waterflood injection pressure. This model is used to develop a control system optimizing the injection pressure by using a prescribed injection goal coupled with the historical times, pressures, and volume of injected fluid at a single well. In this control method, the historical data is used to derive two major flow components: the transitional component, where cumulative injection volume is scaled as the square root of time, and a steady-state breakthrough component, which scales linearly with respect to time. These components provide diagnostic information and allow for the prevention of rapid fracture growth and associated massive water break through that is an important part of a successful waterflood, thereby extending the life of both injection and associated production wells in waterflood secondary oil recovery operations.
    Type: Application
    Filed: April 2, 2002
    Publication date: March 20, 2003
    Inventors: Tadeusz Wiktor Patzek, Dimitriy Borisovich Silin, Asoke Kumar De