Patents by Inventor Christopher J. Freitas
Christopher J. Freitas 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: 10810330Abstract: A method of performing aspects of an energy industry operation includes receiving input data at a processing system, the input data describing an assembly for performing the energy industry operation and properties of the formation, the assembly including a downhole component, the processing system configured to estimate production properties based on mathematical models including at least a model of the downhole component and one or more models for simulating fluid flow in the formation. The method also includes, based on the input data, generating a workflow that includes steps for estimating production properties using the models, receiving a selection from a user specifying a type of analysis to be performed and/or a level of complexity of analysis to be performed, customizing the workflow based on the user selection, estimating the production properties based on the models, where estimating is performed according to a procedure specified by the workflow.Type: GrantFiled: December 16, 2016Date of Patent: October 20, 2020Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Rob Early, Oktay Metin Gokdemir, Christopher J. Freitas, Nathan F. Andrews, Nicholas J. Mueschke, Rhandy Regulacion
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Patent number: 10345764Abstract: A method of performing aspects of an energy industry operation includes simulating an energy industry operation parameter by an analysis module, wherein simulating includes predicting values of the operational parameter via one or more mathematical models of the assembly and a formation region, and estimating an uncertainty range of at least one of the input data and the predicted values of the operational parameter; generating a performance envelope based on the predicted values and the uncertainty range; generating an operating envelope by the analysis module, the operating envelope prescribing minimum constraints on the operational parameter; during the energy industry operation, receiving real time measurements of the operational parameter by a production performance module, and comparing the measured operational parameter to the operating envelope and the performance envelope; and based on the measured operational parameter being outside the performance envelope, controlling the energy industry operationType: GrantFiled: February 29, 2016Date of Patent: July 9, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Rob Early, Oktay Metin Gokdemir, Ian Graham Brown, Christopher J. Freitas, Nathan F. Andrews, Nicholas J. Mueschke, Rhandy Regulacion, Eric Thiessen, Coen Smits
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Publication number: 20170177761Abstract: A method of performing aspects of an energy industry operation includes receiving input data at a processing system, the input data describing an assembly for performing the energy industry operation and properties of the formation, the assembly including a downhole component, the processing system configured to estimate production properties based on mathematical models including at least a model of the downhole component and one or more models for simulating fluid flow in the formation. The method also includes, based on the input data, generating a workflow that includes steps for estimating production properties using the models, receiving a selection from a user specifying a type of analysis to be performed and/or a level of complexity of analysis to be performed, customizing the workflow based on the user selection, estimating the production properties based on the models, where estimating is performed according to a procedure specified by the workflow.Type: ApplicationFiled: December 16, 2016Publication date: June 22, 2017Applicant: Baker Hughes IncorporatedInventors: Rob Early, Oktay Metin Gokdemir, Christopher J. Freitas, Nathan F. Andrews, Nicholas J. Mueschke, Rhandy Regulacion
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Publication number: 20160312552Abstract: A method of performing aspects of an energy industry operation includes simulating an energy industry operation parameter by an analysis module, wherein simulating includes predicting values of the operational parameter via one or more mathematical models of the assembly and a formation region, and estimating an uncertainty range of at least one of the input data and the predicted values of the operational parameter; generating a performance envelope based on the predicted values and the uncertainty range; generating an operating envelope by the analysis module, the operating envelope prescribing minimum constraints on the operational parameter; during the energy industry operation, receiving real time measurements of the operational parameter by a production performance module, and comparing the measured operational parameter to the operating envelope and the performance envelope; and based on the measured operational parameter being outside the performance envelope, controlling the energy industry operationType: ApplicationFiled: February 29, 2016Publication date: October 27, 2016Applicant: Baker Hughes IncorporatedInventors: Rob Early, Oktay Metin Gokdemir, Ian Graham Brown, Christopher J. Freitas, Nathan F. Andrews, Nicholas J. Mueschke, Rhandy Regulacion, Eric Thiessen, Coen Smits
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Publication number: 20160040513Abstract: A method of estimating saturation conditions of reservoir brines in an underground reservoir includes: receiving data representing a temperature of the brine; determining if the temperature is greater than a preset value; and selecting either a first method or second method, different than the first method, of calculating the saturation conditions based on the determination. The first method is selected when the temperature is greater than the preset value and the second method is selected when the temperature is less than the preset value.Type: ApplicationFiled: August 5, 2014Publication date: February 11, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Christopher J. Freitas, Nicholas J. Mueschke, Nathan F. Andrews
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Publication number: 20160040532Abstract: A method of estimating properties of a reservoir fluid in an underground reservoir includes: calculating the density ? of the mixture containing water; determining component-specific volume shift parameters ci; replacing the component specific volume shift parameter for water with a volume shift parameter cH2O; determining a total volume shift c required from the sum of the component specific volume shifts and the mole fraction of each component in the mixture; determining a corrected molar volume of the liquid and vapor by subtracting the total volume shift c from an equation of state (EOS) calculated molar volume v; and recalculating density ? and compressibility factor Z for the liquid and vapor phases with the corrected molar volume.Type: ApplicationFiled: August 5, 2014Publication date: February 11, 2016Applicant: Baker Hughes IncorporatedInventors: Christopher J. Freitas, Nicholas J. Mueschke, Nathan F. Andrews
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Publication number: 20160042100Abstract: An apparatus for estimating conditions of a fluid in an underground reservoir includes one or more sensors for measuring a temperature and a pressure of the fluid a processor that estimates the conditions by enforcing a full liquid requirement to a flash solver when under certain conditions.Type: ApplicationFiled: August 5, 2014Publication date: February 11, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Christopher J. Freitas, Nicholas J. Mueschke, Nathan F. Andrews
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Publication number: 20160041142Abstract: An apparatus for estimating conditions of reservoir fluid in an underground reservoir that includes a sensor for measuring one or more measured parameters of that fluid, the measured parameters including at least one of: temperature, pressure and density of the fluid and a processor. The processor is configured to: receive data representing the one or more measured parameters; determine or receive coefficients for an extended corresponding states (XCS) model, wherein propane is used as a reference fluid in determining the coefficients or was used in the forming of the received coefficients; and solve the XCS model with the coefficients to form estimates of the fluid conditions.Type: ApplicationFiled: August 5, 2014Publication date: February 11, 2016Applicant: Baker Hughes IncorporatedInventors: Christopher J. Freitas, Nicholas J. Mueschke, Nathan F. Andrews
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Patent number: 7379852Abstract: A method for tracking N fluid materials and their associated interfaces during simulated fluid flow is disclosed. A microgrid cell methodology is embedded on a regular macrogrid to subdivide and then tag fluid materials in a computational system preferably using a prime numbering algorithm. The motion of microgrid cells is tracked based on local velocity conditions, rectifying small anomalies by a coupled evaluation of local volume fraction fields and global mass conservation. Volume fractions can be calculated at any time step via an evaluation of the prime locations so that average cellular density and viscosity values can be regularly updated.Type: GrantFiled: February 18, 2004Date of Patent: May 27, 2008Assignee: Chevron U.S.A. Inc.Inventors: Christopher J. Freitas, Mary Ann Clarke
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Patent number: 6799587Abstract: An apparatus comprising multiple heating, cooling, and/or cleaning zones. The apparatus produces a jet flow of solvent/cleaning fluid onto an article to be cleaned without the need for a pump or compressor. The jet flow provides more effective contaminant removal. The multiple zones result in increased residence time for increased efficiency in separating the solubilized contaminant from the solvent/cleaning fluid.Type: GrantFiled: February 28, 2002Date of Patent: October 5, 2004Assignee: Southwest Research InstituteInventors: Mary C. Marshall, John G. Franjione, Christopher J. Freitas, William T. Roberds, Gordon D. Pollard, Jill Blake
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Publication number: 20030056813Abstract: An apparatus comprising multiple heating, cooling, and/or cleaning zones. The apparatus produces a jet flow of solvent/cleaning fluid onto an article to be cleaned without the need for a pump or compressor. The jet flow provides more effective contaminant removal. The multiple zones result in increased residence time for increased efficiency in separating the solubilized contaminant from the solvent/cleaning fluid.Type: ApplicationFiled: February 28, 2002Publication date: March 27, 2003Inventors: Mary C. Marshall, John G. Franjione, Christopher J. Freitas, William T. Roberds, Gordon D. Pollard, Jill Blake
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Patent number: 6367491Abstract: Apparatus and methods are described for removing contaminants from an article using a supercritical or near supercritical solvent fluid held at substantially constant pressure in a pressure vessel. The article to be cleaned is first contacted with a solvent fluid in which the contaminant is soluble at a first supercritical or near-supercritical temperature. The contaminant-containing fluid is then cooled or heated to a second supercritical or near supercritical temperature to lower the solubility of the contaminant in the supercritical fluid and thereby precipitate or phase separate the contaminant. The contaminant is then recovered. Movement of the solvent fluid within the pressure vessel is preferably by convection induced by heating and cooling means in the vessel.Type: GrantFiled: September 15, 2000Date of Patent: April 9, 2002Assignee: Southwest Research InstituteInventors: Mary C. Marshall, John G. Franjione, Christopher J. Freitas
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Patent number: 6165282Abstract: Apparatus and methods are described for removing contaminants from an article using a supercritical or near supercritical solvent fluid held at substantially constant pressure in a pressure vessel. The article to be cleaned is first contacted with a solvent fluid in which the contaminant is soluble at a first supercritical or near-supercritical temperature. The contaminate-containing fluid is then cooled or heated to a second supercritical or near supercritical temperature to lower the solubility of the contaminant in the supercritical fluid and thereby precipitate or phase separate the contaminant. The contaminant is then recovered. Movement of the solvent fluid within the pressure vessel is preferably by convection induced by heating and cooling means in the vessel.Type: GrantFiled: July 8, 1996Date of Patent: December 26, 2000Assignee: Southwest Research InstituteInventors: Mary C. Marshall, John G. Franjione, Christopher J. Freitas