Patents by Inventor Veronique Gervais

Veronique Gervais 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: 8942967
    Abstract: The invention is a method for real-time updating of a geological model using dynamic data while maintaining the coherence thereof with static observations. An initial set of reservoir property maps, obtained from stochastic simulations of a random function, are available. Parameters providing new realizations of the random function when applied to the set are selected. New maps are created using initial values of the parameters. As soon as new dynamic data are available, the parameters are modified to reduce a difference between the simulated data for perturbed models and the measured data. Finally, the reservoir is developed using a modified development scheme to account for the deformed maps.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: January 27, 2015
    Assignee: IFP Energies Nouvelles
    Inventors: Leila Heidari, Veronique Gervais-Couplet, Mickaele Le Ravalec, Hans Wackernagel
  • Patent number: 8712746
    Abstract: A method of modifying a geological model representative of an underground reservoir is disclosed which respects average proportions of the lithologic facies imposed by a production data calibration process which has application to petroleum reservoir development. A geographical zone Z is defined within the geological model and an average proportion in zone Z allowing the production data to be calibrated is determined for k facies, with an optimization process. The proportions of these facies are modified using a block indicator cokriging method constrained by the average proportions to be respected. A new geological model constrained by the modified facies proportions is simulated and the development of the underground medium is optimized by the simulated model.
    Type: Grant
    Filed: May 18, 2010
    Date of Patent: April 29, 2014
    Assignee: IFP
    Inventors: Elodie Tillier, Guillaume Enchery, Véronique Gervais-Couplet, Mickaële Le Ravalec
  • Publication number: 20140019108
    Abstract: The invention is a method for exploiting a geological reservoir to exploit hydrocarbons or provide gas storage. The exploitation is defined on the basis of a reservoir model calibrated relative to dynamic data. The calibration is carried out by computing an objective function for a set of reservoir models. The objective function makes it possible to determine an analytical law of conditional distribution of the uncertain parameters of the model to generate new reservoir models added to the set of reservoir models.
    Type: Application
    Filed: June 28, 2013
    Publication date: January 16, 2014
    Applicant: IFP ENERGIES NOUVELLES
    Inventors: Sebastien DA VEIGA, Veronique GERVAIS-COUPLET, Mathieu FERAILLE
  • Publication number: 20120191433
    Abstract: The invention is a method for real-time updating of a geological model using dynamic data while maintaining the coherence thereof with static observations. An initial set of reservoir property maps, obtained from stochastic simulations of a random function, are available. Parameters providing new realizations of the random function when applied to the set are selected. New maps are created using initial values of the parameters. As soon as new dynamic data are available, the parameters are modified to reduce a difference between the simulated data for perturbed models and the measured data. Finally, the reservoir is developed using a modified development scheme to account for the deformed maps.
    Type: Application
    Filed: January 13, 2012
    Publication date: July 26, 2012
    Inventors: Leila HEIDARI, Veronique Gervais-Couplet, Mickaele Le Ravalec, Hans Wackernagel
  • Patent number: 8032345
    Abstract: Method for optimizing the development of an underground reservoir, wherein a geological model is updated using dynamic data and well tests. A reservoir model is constructed by performing a geological model scale change. Dynamic data are simulated from this reservoir model. Influence zones are identified within the geological model where the well tests induce a pressure variation during well testing. Well tests are then simulated for each influence zone. An objective function measuring the difference between the simulated data and the measured data is calculated. The geological model is then modified so as to reduce to the maximum the objective function using a geostatistical parametrizing technique. Finally, development of the underground reservoir is optimized by evaluating, by means of a flow simulator, the reservoir production for various production schemes. Application: notably oil reservoir development.
    Type: Grant
    Filed: August 6, 2008
    Date of Patent: October 4, 2011
    Assignee: IFP
    Inventors: Mickaële Le Ravalec, Frédéric Roggero, Véronique Gervais
  • Publication number: 20100332205
    Abstract: A method of modifying a geological model representative of an underground reservoir is disclosed which respects average proportions of the lithologic facies imposed by a production data calibration process which has application to petroleum reservoir development. A geographical zone Z is defined within the geological model and an average proportion in zone Z allowing the production data to be calibrated is determined for k facies, with an optimization process. The proportions of these facies are modified using a block indicator cokriging method constrained by the average proportions to be respected. A new geological model constrained by the modified facies proportions is simulated and the development of the underground medium is optimized by the simulated model.
    Type: Application
    Filed: May 18, 2010
    Publication date: December 30, 2010
    Inventors: ELODIE TILLIER, GUILLAUME ENCHERY, VÉRONIQUE GERVAIS-COUPLET, MICKAËLE LE RAVALEC
  • Publication number: 20090070086
    Abstract: Method for optimizing the development of an underground reservoir, wherein a geological model is updated using dynamic data and well tests. A reservoir model is constructed by performing a geological model scale change. Dynamic data are simulated from this reservoir model. Influence zones are identified within the geological model where the well tests induce a pressure variation during well testing. Well tests are then simulated for each influence zone. An objective function measuring the difference between the simulated data and the measured data is calculated. The geological model is then modified so as to reduce to the maximum the objective function using a geostatistical parametrizing technique. Finally, development of the underground reservoir is optimized by evaluating, by means of a flow simulator, the reservoir production for various production schemes. Application: notably oil reservoir development.
    Type: Application
    Filed: August 6, 2008
    Publication date: March 12, 2009
    Inventors: Mickaele Le Ravalec, Frederic Roggero, Veronique Gervais