Patents by Inventor Eric Lehne

Eric Lehne 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).

  • Methods for characterization of petroleum reservoirs employing property gradient analysis of reservoir fluids
    Patent number: 9442217
    Abstract: A methodology for reservoir understanding employs analysis of fluid property gradients to investigate and distinguish between non-compartmentalization of the reservoir, compartmentalization of the reservoir, and lack of thermodynamic equilibrium in the reservoir.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 13, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Andrew E. Pomerantz, Oliver C. Mullins, Albert Ballard Andrews, Eric Lehne
  • Methods for reservoir evaluation employing non-equilibrium compositional gradients
    Patent number: 9322268
    Abstract: A method for determining reservoir architecture using modeling of a non-equilibrium distribution of at least one analyte in reservoir fluids. The analyte(s) of the analysis preferably has (have) significant compositional variation in the reservoir. For example, the analyte can be a later charging single gas component (such as methane, carbon dioxide, or hydrogen sulfide) in a multi-component fluid system. In this case, the model can assume that the components of the early charge are in a stationary state or in equilibrium, whereas the later charge is in a state of non-equilibrium. The non-equilibrium distribution of the analyte(s) derived from the model is compared to the distribution of the analyte(s) derived from downhole or laboratory fluid analysis of reservoir fluid, and the architecture of the reservoir is determined based upon such comparison.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 26, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Youxiang Zuo, Eric Lehne, Saifon Sirimongkolkitti, Shu Pan, Oliver C. Mullins
  • Methods for characterizing asphaltene instability in reservoir fluids
    Patent number: 9255475
    Abstract: A methodology for reservoir understanding that performs investigation of asphaltene instability as a function of location in a reservoir of interest. In the preferred embodiment, results derived as part of the investigation of asphaltene instability are used as a workflow decision point for selectively performing additional analysis of reservoir fluids. The additional analysis of reservoir fluids can verify the presence of asphaltene flocculation onset conditions and/or determine the presence and location of phase-separated bitumen in the reservoir of interest.
    Type: Grant
    Filed: April 20, 2011
    Date of Patent: February 9, 2016
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Youxiang Zuo, Oliver C. Mullins, Chengil Dong, Denise Freed, Andrew Pomerantz, Eric Lehne, Dingan Zhang
  • Methods For Reservoir Evaluation Employing Non-Equilibrium Compositional Gradients
    Publication number: 20140200810
    Abstract: A method for determining reservoir architecture using modeling of a non-equilibrium distribution of at least one analyte in reservoir fluids. The analyte(s) of the analysis preferably has (have) significant compositional variation in the reservoir. For example, the analyte can be a later charging single gas component (such as methane, carbon dioxide, or hydrogen sulfide) in a multi-component fluid system. In this case, the model can assume that the components of the early charge are in a stationary state or in equilibrium, whereas the later charge is in a state of non-equilibrium. The non-equilibrium distribution of the analyte(s) derived from the model is compared to the distribution of the analyte(s) derived from downhole or laboratory fluid analysis of reservoir fluid, and the architecture of the reservoir is determined based upon such comparison.
    Type: Application
    Filed: May 31, 2011
    Publication date: July 17, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Youxiang Zuo, Eric Lehne, Saifon Sirimongkolkitti, Shu Pan, Oliver C. Mullins
  • METHODS FOR CHARACTERIZATION OF PETROLEUM RESERVOIRS EMPLOYING PROPERTY GRADIENT ANALYSIS OF RESERVOIR FLUIDS
    Publication number: 20130151159
    Abstract: A methodology for reservoir understanding employs analysis of fluid property gradients to investigate and distinguish between non-compartmentalization of the reservoir, compartmentalization of the reservoir, and lack of thermodynamic equilibrium in the reservoir.
    Type: Application
    Filed: March 23, 2011
    Publication date: June 13, 2013
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Andrew E. Pomerantz, Oliver C. Mullins, Albert Ballard Andrews, Eric Lehne
  • Methods for Characterizing Asphaltene Instability in Reservoir Fluids
    Publication number: 20130112406
    Abstract: A methodology for reservoir understanding that performs investigation of asphaltene instability as a function of location in a reservoir of interest. In the preferred embodiment, results derived as part of the investigation of asphaltene instability are used as a workflow decision point for selectively performing additional analysis of reservoir fluids. The additional analysis of reservoir fluids can verify the presence of asphaltene flocculation onset conditions and/or determine the presence and location of phase-separated bitumen in the reservoir of interest.
    Type: Application
    Filed: April 20, 2011
    Publication date: May 9, 2013
    Inventors: Youxiang Zuo, Oliver C. Mullins, Chengli Dong, Denise Freed, Andrew Pomerantz, Eric Lehne, Dingan Zhang