Patents by Inventor Keshav Narayanan

Keshav Narayanan 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).

  • Patent number: 8712747
    Abstract: A system and method may be configured to support the evaluation of the economic impact of uncertainties associated with the planning of a petroleum production project, e.g., uncertainties associated with decisions having multiple possible outcomes and uncertainties associated with uncontrollable parameters such as rock properties, oil prices, etc. The system and method involve receiving user input characterizing the uncertainty of planning variables and performing an iterative simulation that computes the economic return for various possible instantiations of the set of planning variables based on the uncertainty characterization. The system and method may (a) utilize and integrate highly rigorous physical reservoir, well, production flow, and economic models, and (b) provide a mechanism for specifying constraints on the planning variables. Furthermore, the system and method may provide a case manager process for managing multiple cases and associated “experimental runs” on the cases.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: April 29, 2014
    Assignee: Landmark Graphics Corporation
    Inventors: Alvin Stanley Cullick, Keshav Narayanan, Glenn E. Wilson
  • Patent number: 8458000
    Abstract: A client-server based system for building and executing flows (i.e., interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A flow may be configured to analyze the impact (e.g., the financial impact) of a number of uncertainties associated with a plurality of assets. Uncertainty variables are used to characterize the uncertainties associated with the assets. An uncertainty variable associated with one asset may be functionally dependent on an uncertainty variable associated with another asset.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: June 4, 2013
    Assignee: Landmark Graphics Corporation
    Inventors: Keshav Narayanan, David E. Heath, Alvin Stanley Cullick
  • Patent number: 8457997
    Abstract: A client-server based system for building and executing flows (i.e., interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A decision flow builder allows the user to build a flow targeted for the analysis/optimization of decisions (modeled by decision variables) regarding a plurality of assets in view of various underlying uncertainties (modeled by uncertainty variables). The user may specify a global objective (as a function of asset level statistics) as well and one or more constraints for the optimization. The flow may account for inter-asset correlations and inter-asset dependencies between uncertainty variables, and, inter-asset constraints between decision variables.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: June 4, 2013
    Assignee: Landmark Graphics Corporation
    Inventors: Keshav Narayanan, David Heath, Alvin Stanley Cullick
  • Publication number: 20120226512
    Abstract: A client-server based system for building and executing flows (i.e., interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A flow may be configured to analyze the impact (e.g., the financial impact) of a number of uncertainties associated with a plurality of assets. Uncertainty variables are used to characterize the uncertainties associated with the assets. An uncertainty variable associated with one asset may be functionally dependent on an uncertainty variable associated with another asset.
    Type: Application
    Filed: May 17, 2012
    Publication date: September 6, 2012
    Inventors: Keshav Narayanan, David E. Heath, Alvin Stanley Cullick
  • Patent number: 8209202
    Abstract: A client-server based system for building and executing flows (i.e., interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A flow may be configured to analyze the impact (e.g., the financial impact) of a number of uncertainties associated with a plurality of assets. Uncertainty variables are used to characterize the uncertainties associated with the assets. An uncertainty variable associated with one asset may be functionally dependent on an uncertainty variable associated with another asset.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: June 26, 2012
    Assignee: Landmark Graphics Corporation
    Inventors: Keshav Narayanan, David E. Heath, Alvin Stanley Cullick
  • Publication number: 20110060573
    Abstract: A system and method may be configured to support the evaluation of the economic impact of uncertainties associated with the planning of a petroleum production project, e.g., uncertainties associated with decisions having multiple possible outcomes and uncertainties associated with uncontrollable parameters such as rock properties, oil prices, etc. The system and method involve receiving user input characterizing the uncertainty of planning variables and performing an iterative simulation that computes the economic return for various possible instantiations of the set of planning variables based on the uncertainty characterization. The system and method may (a) utilize and integrate highly rigorous physical reservoir, well, production flow, and economic models, and (b) provide a mechanism for specifying constraints on the planning variables. Furthermore, the system and method may provide a case manager process for managing multiple cases and associated “experimental runs” on the cases.
    Type: Application
    Filed: November 15, 2010
    Publication date: March 10, 2011
    Inventors: Alvin Stanley Cullick, Keshav Narayanan, Glenn E. Wilson
  • Patent number: 7835893
    Abstract: A system and method may be configured to support the evaluation of the economic impact of uncertainties associated with the planning of a petroleum production project, e.g., uncertainties associated with decisions having multiple possible outcomes and uncertainties associated with uncontrollable parameters such as rock properties, oil prices, etc. The system and method involve receiving user input characterizing the uncertainty of planning variables and performing an iterative simulation that computes the economic return for various possible instantiations of the set of planning variables based on the uncertainty characterization. The system and method may (a) utilize and integrate highly rigorous physical reservoir, well, production flow, and economic models, and (b) provide a mechanism for specifying constraints on the planning variables. Furthermore, the system and method may provide a case manager process for managing multiple cases and associated “experimental runs” on the cases.
    Type: Grant
    Filed: September 3, 2003
    Date of Patent: November 16, 2010
    Assignee: Landmark Graphics Corporation
    Inventors: Alvin Stanley Cullick, Keshav Narayanan, Glenn E. Wilson
  • Patent number: 7546228
    Abstract: A system comprising a memory and a processor. The memory is configured to store data and program instructions for a processing method. The processor is configured to read the program instructions from the memory. In response to execution of the program instructions, the processor is operable to: (a) instantiate one or more well process times associated with a first schedule; (b) instantiate a facility establishment time associated with first schedule; (c) instantiate zero or more dependency delays associated with the first schedule; (d) resolve event dates in the first schedule based on resolved event dates in one or more other schedules, the one or more instantiated well process times, the instantiated facility establishment time, and the instantiated dependency delays; (e) compute costs for facility establishment and well processes (e.g., well drilling and well completion) using the resolved event dates.
    Type: Grant
    Filed: April 30, 2004
    Date of Patent: June 9, 2009
    Assignee: Landmark Graphics Corporation
    Inventors: Alvin Stanley Cullick, Keshav Narayanan
  • Publication number: 20080120148
    Abstract: A client-server based system for building and executing flows (i.e., interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A flow may be configured to analyze the impact (e.g., the financial impact) of a number of uncertainties associated with a plurality of assets. Uncertainty variables are used to characterize the uncertainties associated with the assets. An uncertainty variable associated with one asset may be functionally dependent on an uncertainty variable associated with another asset.
    Type: Application
    Filed: May 1, 2006
    Publication date: May 22, 2008
    Inventors: Keshav Narayanan, David Heath, Alvin Stanley Cullick
  • Publication number: 20060247990
    Abstract: A client-server based system for building and executing flows (i.e., interconnected systems of algorithms). The client allows a user to build a flow specification and send the flow specification to the server. The server assembles the flow from the flow spec and executes the flow. A decision flow builder allows the user to build a flow targeted for the analysis/optimization of decisions (modeled by decision variables) regarding a plurality of assets in view of various underlying uncertainties (modeled by uncertainty variables). The user may specify a global objective (as a function of asset level statistics) as well and one or more constraints for the optimization. The flow may account for inter-asset correlations and inter-asset dependencies between uncertainty variables, and, inter-asset constraints between decision variables.
    Type: Application
    Filed: August 30, 2005
    Publication date: November 2, 2006
    Inventors: Keshav Narayanan, David Heath, Alvin Cullick
  • Publication number: 20040220790
    Abstract: A system and method may be configured to support the evaluation of the economic impact of uncertainties associated with the planning of a petroleum production project, e.g., uncertainties associated with decisions having multiple possible outcomes and uncertainties associated with uncontrollable parameters such as rock properties, oil prices, etc. The system and method involve receiving user input characterizing the uncertainty of planning variables and performing an iterative simulation that computes the economic return for various possible instantiations of the set of planning variables based on the uncertainty characterization. The system and method may (a) utilize and integrate highly rigorous physical reservoir, well, production flow, and economic models, and (b) provide a mechanism for specifying constraints on the planning variables. Furthermore, the system and method may provide a case manager process for managing multiple cases and associated “experimental runs” on the cases.
    Type: Application
    Filed: September 3, 2003
    Publication date: November 4, 2004
    Inventors: Alvin Stanley Cullick, Keshav Narayanan, Glenn E. Wilson
  • Publication number: 20040220846
    Abstract: A system comprising a memory and a processor. The memory is configured to store data and program instructions for a processing method. The processor is configured to read the program instructions from the memory. In response to execution of the program instructions, the processor is operable to: (a) instantiate one or more well process times associated with a first schedule; (b) instantiate a facility establishment time associated with first schedule; (c) instantiate zero or more dependency delays associated with the first schedule; (d) resolve event dates in the first schedule based on resolved event dates in one or more other schedules, the one or more instantiated well process times, the instantiated facility establishment time, and the instantiated dependency delays; (e) compute costs for facility establishment and well processes (e.g., well drilling and well completion) using the resolved event dates.
    Type: Application
    Filed: April 30, 2004
    Publication date: November 4, 2004
    Inventors: Alvin Stanley Cullick, Keshav Narayanan