Patents by Inventor Romain De Loubens
Romain De Loubens 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).
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Patent number: 11499412Abstract: The present invention relates to a method for determining hydrocarbon production for a reservoir. The method comprises determining a projector matrix based on a Jacobian matrix function of the gridded model, then splitting the Jacobian matrix into subsets of consecutive lines. For each subset of consecutive lines, creating a respective square matrix based on said subset. A determining eigenvectors and respective eigenvalues associated with the respective square matrix and then determining relevant eigenvectors having respective eigenvalues below a predetermined threshold. The projector is determined as a concatenation of the extended eigenvectors ordered according to multiple criteria: the respective order value of the subset; and the respective eigenvalue of the relevant eigenvector.Type: GrantFiled: November 24, 2017Date of Patent: November 15, 2022Assignee: TOTAL SEInventors: Pascal Henon, Romain De Loubens
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Publication number: 20200325765Abstract: The present invention relates to a method for determining hydrocarbon production for a reservoir. The method comprises determining a projector matrix based on a Jacobian matrix function of the gridded model, then splitting the Jacobian matrix into subsets of consecutive lines. For each subset of consecutive lines, creating a respective square matrix based on said subset. A determining eigenvectors and respective eigenvalues associated with the respective square matrix and then determining relevant eigenvectors having respective eigenvalues below a predetermined threshold. The projector is determined as a concatenation of the extended eigenvectors ordered according to multiple criteria: the respective order value of the subset; and the respective eigenvalue of the relevant eigenvector.Type: ApplicationFiled: November 24, 2017Publication date: October 15, 2020Applicant: T0TAL SAInventors: Pascal HENON, Romain DE LOUBENS
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Patent number: 10329903Abstract: Embodiments include constructing a reservoir model of an earth formation. The method may also include selecting a predetermined set of fundamental parameters to describe the earth formation and assigning initial values for the predetermined set of fundamental parameters for each of the plurality of layers. The method may include using the initial values for each of the plurality of layers. The method may include computing physical-response-relevant properties as a function of space and time for each of the plurality of layers using the solutions and then computing tool responses using the physical-response-relevant properties. The method may include installing an electrode array between an insulation portion of a metal casing provided in a borehole and a physical formation and obtaining formation measurement information from the electrode array, comparing the formation measurement information to the computed tool response to obtain an error signal and modifying the initial values in an iterative process.Type: GrantFiled: October 4, 2013Date of Patent: June 25, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Terizhandur S. Ramakrishnan, Yusuf Bilgin Altundas, Nikita Chugunov, Romain De Loubens, Francois B. Fayard
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Patent number: 10119374Abstract: A method for simulating fluid flows in a petroleum reservoir to improve final oil recovery. The fluid comprises water, hydrocarbon, and surfactant components. The method comprises a flash step for calculating compositions via two stages. A first stage comprises a first flash to determine first compositions of the water, oil and gas phases and is performed by omitting the surfactant component in the fluid. A second stage comprises a second flash to determine a microemulsion composition of the microemulsion phase.Type: GrantFiled: March 11, 2013Date of Patent: November 6, 2018Assignee: TOTAL SAInventors: Leonardo Patacchini, Romain De Loubens, Arthur Moncorge
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Publication number: 20160040531Abstract: A formation is characterized by generating a model of the formation that characterizes the formation in a manner consistent with all measurements, thereby permitting a computation or prediction of how the formation will respond to disturbances or stimuli such as fluid injection for production, carbon-dioxide injection for sequestration, current injection, etc. The formation is described with a fundamental set of microscopic parameters such that quantities relevant to petrophysical response at a continuum or macroscopic level can be derived from them. Values for various formation parameters are determined, as are values for various field variables.Type: ApplicationFiled: October 4, 2013Publication date: February 11, 2016Inventors: Terizhandur S. RAMAKRISHNAN, Yusuf Bilgin ALTUNDAS, Nikita CHUGUNOV, Romain DE LOUBENS, Francois B. FAYARD
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Publication number: 20150073762Abstract: A method for simulating fluid flows in a petroleum reservoir, in which the fluid is split in physical phases comprising a gas phase, an oil phase, a water phase and a microemulsion phase. The fluid comprises water, hydrocarbon, and surfactant components. The method comprises a flash step for calculating compositions via two stages. A first stage comprises a first flash to determine first compositions of the water, oil and gas phases and is performed by omitting the surfactant component in the fluid. A second stage comprises a second flash to determine a microemulsion composition of the microemulsion phase.Type: ApplicationFiled: March 11, 2013Publication date: March 12, 2015Inventors: Leonardo Patacchini, Romain De Loubens, Arthur Moncorge
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Patent number: 8548785Abstract: A CO2 sequestration site is evaluated by incorporating a consistent petrophysical framework having uncertainties expressed in the form of probability density functions of wellbore measurements, by systematically propagating the uncertainties in generating probability density functions or cumulative distribution functions of the parameters used in a reservoir simulation, by using the reservoir simulation to transform the first set of parameters into output variables with uncertainties, and by using the output variables and uncertainties to generate an answer product from which uncertainty levels of performance metrics can be ascertained.Type: GrantFiled: April 27, 2010Date of Patent: October 1, 2013Assignee: Schlumberger Technology CorporationInventors: Nikita V. Chugunov, Eric Leon Stabinski, Terizhandur S. Ramakrishnan, Romain de Loubens, Yusuf Bilgin Altundas, Laura Espinal
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Patent number: 8176984Abstract: Carbon dioxide is sequestered in a formation using dual or multiple completion and injection methods that reduce or eliminates upward leak rates of the sequestered carbon dioxide. The dual or multiple completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is injected at the same time the carbon dioxide is injected.Type: GrantFiled: November 9, 2009Date of Patent: May 15, 2012Assignee: Schlumberger Technology CorporationInventors: Terizhandur S. Ramakrishnan, Romain de Loubens, Yusuf Bilgin Altundas
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Publication number: 20100299126Abstract: A CO2 sequestration site is evaluated by incorporating a consistent petrophysical framework having uncertainties expressed in the form of probability density functions of wellbore measurements, by systematically propagating the uncertainties in generating probability density functions or cumulative distribution functions of the parameters used in a reservoir simulation, by using the reservoir simulation to transform the first set of parameters into output variables with uncertainties, and by using the output variables and uncertainties to generate an answer product from which uncertainty levels of performance metrics can be ascertained.Type: ApplicationFiled: April 27, 2010Publication date: November 25, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Nikita V. Chugunov, Eric Leon Stabinski, Terizhandur S. Ramakrishnan, Romain de Loubens, Yusuf Bilgin Altundas, Laura Espinal
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Patent number: 7726402Abstract: Carbon dioxide is sequestered in a formation using a dual completion and injection method that reduces or eliminates upward leak rates of the sequestered carbon dioxide. The dual completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is preferably injected at the same time the carbon dioxide is injected.Type: GrantFiled: July 3, 2008Date of Patent: June 1, 2010Assignee: Schlumberger Technology CorporationInventors: Terizhandur S. Ramakrishnan, Romain De Loubens, Yusuf Bilgin Altundas
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Publication number: 20100116511Abstract: Carbon dioxide is sequestered in a formation using dual or multiple completion and injection methods that reduce or eliminates upward leak rates of the sequestered carbon dioxide. The dual or multiple completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is injected at the same time the carbon dioxide is injected.Type: ApplicationFiled: November 9, 2009Publication date: May 13, 2010Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Terizhandur S. Ramakrishnan, Romain De Loubens, Yusuf Bilgin Altundas
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Publication number: 20100000737Abstract: Carbon dioxide is sequestered in a formation using a dual completion and injection method that reduces or eliminates upward leak rates of the sequestered carbon dioxide. The dual completion and injection method involves the injection of a benign fluid such as brine (water) into a permeable layer of the formation located above the sequestration layer and which is separated form the sequestration layer by a nearly impermeable layer. The water is preferably injected at the same time the carbon dioxide is injected.Type: ApplicationFiled: July 3, 2008Publication date: January 7, 2010Applicant: Schlumberger Technology CorporationInventors: Terizhandur S. Ramakrishnan, Romain De Loubens, Yusuf Bilgin Altundas