Patents by Inventor Michael Nikolaou
Michael Nikolaou 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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Publication number: 20230044633Abstract: An optical based method determines the most clinically effective antimicrobial agent treatment for a subject afflicted with a microbial infection, including those subjects that have developed resistance to said microbial agents. The provided method is based on the ability to discriminate between live and dead microbes growing in a culture medium.Type: ApplicationFiled: August 21, 2020Publication date: February 9, 2023Inventors: Michael NIKOLAOU, Vincent H. TAM, Iordanis KESISOGLOU
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Patent number: 11078774Abstract: The electrical submersible pump (ESP) is currently the fastest growing artificial-lift pumping technology. Deployed across 15 to 20 percent of oil-wells worldwide, ESPs are an efficient and reliable option at high production volumes and greater depths. However, ESP performance is often observed to decline gradually and reach the point of service interruption due to factors like high gas volumes, high temperature, and corrosion. The financial impact of ESP failure is substantial, from both lost production and replacement costs. Therefore, ESP performance in extensively monitored, and numerous workflows exist to suggest actions in case of break-downs. However, such workflows are reactive in nature, i.e., action is taken after tripping or failure. Therefore, a data-driven analytical framework is proposed to advance towards a proactive approach to ESP health monitoring based on predictive analytics to detect impending problems, diagnose their cause, and prescribe preventive action.Type: GrantFiled: March 16, 2017Date of Patent: August 3, 2021Assignees: University of Houston System, Frontender Corporation, HalliburtonInventors: Supriya Gupta, Michael Nikolaou, Luigi Saputelli, Cesar Bravo
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Publication number: 20200325766Abstract: The electrical submersible pump (ESP) is currently the fastest growing artificial-lift pumping technology. Deployed across 15 to 20 percent of oil-wells worldwide, ESPs are an efficient and reliable option at high production volumes and greater depths. However, ESP performance is often observed to decline gradually and reach the point of service interruption due to factors like high gas volumes, high temperature, and corrosion. The financial impact of ESP failure is substantial, from both lost production and replacement costs. Therefore, ESP performance in extensively monitored, and numerous workflows exist to suggest actions in case of break-downs. However, such workflows are reactive in nature, i.e., action is taken after tripping or failure. Therefore, a data-driven analytical framework is proposed to advance towards a proactive approach to ESP health monitoring based on predictive analytics to detect impending problems, diagnose their cause, and prescribe preventive action.Type: ApplicationFiled: March 16, 2017Publication date: October 15, 2020Applicants: University of Houston System, Frontender Corporation, HalliburtonInventors: Supriya Gupta, Michael Nikolaou, Luigi Saputelli, Cesar Bravo
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Patent number: 10354207Abstract: Systems and methods for optimization of real time production operations. In one embodiment, a moving time horizon based parametric model provides fast predictions for production optimization in a short-term framework. In another embodiment, multiple technologies are selected in connection with asset performance workflows that are uniquely implemented in a multi-phase approach.Type: GrantFiled: May 1, 2012Date of Patent: July 16, 2019Assignee: Landmark Graphics CorporationInventors: Gerardo Mijares, Alejandro Garcia, Sathish Sankaran, Jose Rodriguez, Luigi Saputelli, Ankur Awasthi, Michael Nikolaou
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Publication number: 20160004800Abstract: The present disclosure presents methods and apparatuses for forecasting geological formation production data. For example, some example methods include identifying an array of parameter sets, determining a fitting error between a first set of the historical production data and modeled production data, wherein the modeled production data is obtained through execution of a simulation model based on each parameter set of the array, determining a validation error between a second set of the historical production data and extrapolated production data for each parameter set of the array, determining a combined error for each parameter set of the array based on the fitting error and the validation error, and identifying an optimal parameter set size for modeling the target geological region, wherein the optimal parameter set size is determined in reference to a minimum combined error of the combined errors determined for each parameter set of the array.Type: ApplicationFiled: May 24, 2013Publication date: January 7, 2016Inventors: Ajay Pratap Singh, Michael Nikolaou, Luigi Saputelli, Marko Maucec
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Publication number: 20140011762Abstract: Provided herein are methods and computer-implemented systems for using computer simulations to predict likelihood of a cell population associated with a pathophysiological condition acquiring resistance to a therapeutic agent, to screen for therapeutic agents effective to suppress acquisition of resistance within a cell population and to treat the pathophysiological conditions associated therewith. The computer simulation comprises at least an input/out system and a mathematical model, including operably linked equations, parameter values and constant values, of growth response over a period of time of a cell population in contact with an therapeutic agent. Also provide is a method for determining a best-fit mathematical model of adaptation of a microbial population to a therapeutic agent over time and using the model to simulate microbial population behavior to a therapeutic agent.Type: ApplicationFiled: May 22, 2013Publication date: January 9, 2014Inventors: Vincent H. Tam, Michael Nikolaou
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Patent number: 8452543Abstract: Provided herein are methods and computer-implemented systems for using computer simulations to predict likelihood of a cell population associated with a pathophysiological condition acquiring resistance to a therapeutic agent, to screen for therapeutic agents effective to suppress acquisition of resistance within a cell population and to treat the pathophysiological conditions associated therewith. The computer simulation comprises at least an input/out system and a mathematical model, including operably linked equations, parameter values and constant values, of growth response over a period of time of a cell population in contact with an therapeutic agent. Also provide is a method for determining a best-fit mathematical model of adaptation of a microbial population to a therapeutic agent over time and using the model to simulate microbial population behavior to a therapeutic agent.Type: GrantFiled: September 19, 2006Date of Patent: May 28, 2013Assignee: The University of Houston SystemInventors: Vincent H. Tam, Michael Nikolaou
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Patent number: 8396826Abstract: Systems and methods for optimization of real time production operations. In one embodiment, a moving time horizon based parametric model provides fast predictions for production optimization in a short-term framework. In another embodiment, multiple technologies are selected in connection with asset performance workflows that are uniquely implemented in a multi-phase approach.Type: GrantFiled: December 17, 2008Date of Patent: March 12, 2013Assignee: Landmark Graphics CorporationInventors: Gerardo Mijares, Alejandro Garcia, Sathish Sankaran, Jose Rodriguez, Luigi Saputelli, Ankur Awasthi, Michael Nikolaou
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Publication number: 20120215502Abstract: Systems and methods for optimization of real time production operations. In one embodiment, a moving time horizon based parametric model provides fast predictions for production optimization in a short-term framework. In another embodiment, multiple technologies are selected in connection with asset performance workflows that are uniquely implemented in a multi-phase approach.Type: ApplicationFiled: May 1, 2012Publication date: August 23, 2012Applicant: Landmark Graphics CorporationInventors: Gerardo Mijares, Alejandro Garcia, Sathish Sankaran, Jose Rodriguez, Luigi Saputelli, Ankur Awasthi, Michael Nikolaou
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Publication number: 20100292964Abstract: Provided herein are methods and computer-implemented systems for using computer simulations to predict likelihood of a cell population associated with a pathophysiological condition acquiring resistance to a therapeutic agent, to screen for therapeutic agents effective to suppress acquisition of resistance within a cell population and to treat the pathophysiological conditions associated therewith. The computer simulation comprises at least an input/out system and a mathematical model, including operably linked equations, parameter values and constant values, of growth response over a period of tune of a cell population in contact with an therapeutic agent.Type: ApplicationFiled: September 19, 2006Publication date: November 18, 2010Inventors: Vincent H Tam, Michael Nikolaou
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Publication number: 20090157590Abstract: Systems and methods for optimization of real time production operations. In one embodiment, a moving time horizon based parametric model provides fast predictions for production optimization in a short-term framework. In another embodiment, multiple technologies are selected in connection with asset performance workflows that are uniquely implemented in a multi-phase approach.Type: ApplicationFiled: December 17, 2008Publication date: June 18, 2009Applicant: Landmark Graphics Corporation, a Halliburton CompanyInventors: Gerardo Mijares, Alejandro Garcia, Sathish Sankaran, Jose Rodriguez, Luigi Saputelli, Ankur Awasthi, Michael Nikolaou
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Patent number: 7006918Abstract: A method for the measurement of the stresses and pressure perturbations surrounding a well, and a system for computing the optimum location for initiating a hydraulic stress fracture. The technique includes using sensors attached to the wellbore casing connected to a data analyzer. The analyzer is capable of analyzing the stresses on the well system. Using an inverse problem framework for an open-hole situation, the far field stresses and well departure angle are determined once the pressure perturbations and stresses are measured on the wellbore casing. The number of wellbore measurements needed for the inverse problem solution also is determined. The technique is also capable of determining the optimal location for inducing a hydraulic fracture, the effect of noisy measurements on the accuracy of the results, and assessing the quality of a bond between a casing and a sealant.Type: GrantFiled: November 10, 2004Date of Patent: February 28, 2006Assignee: University of HoustonInventors: Michael J. Economides, Wolfgang F. J. Deeg, Peter Valko, Michael Nikolaou, Sathish Sankaran
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Publication number: 20050234648Abstract: A method for the measurement of the stresses and pressure perturbations surrounding a well, and a system for computing the optimum location for initiating a hydraulic stress fracture. The technique includes using sensors attached to the wellbore casing connected to a data analyzer. The analyzer is capable of analyzing the stresses on the well system. Using an inverse problem framework for an open-hole situation, the far field stresses and well departure angle are determined once the pressure perturbations and stresses are measured on the wellbore casing. The number of wellbore measurements needed for the inverse problem solution also is determined. The technique is also capable of determining the optimal location for inducing a hydraulic fracture, the effect of noisy measurements on the accuracy of the results, and assessing the quality of a bond between a casing and a sealant.Type: ApplicationFiled: November 10, 2004Publication date: October 20, 2005Applicant: University of HoustonInventors: Michael Economides, Wolfgang Deeg, Peter Valko, Michael Nikolaou, Sathish Sankaran
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Patent number: 6834233Abstract: A system and method for the measurement of the stresses and pressure perturbations surrounding a well, and a system for computing the optimum location for initiating a hydraulic stress fracture. The technique includes using sensors attached to the wellbore casing connected to a data analyzer. The analyzer is capable of analyzing the stresses on the well system. Using an inverse problem framework for an open-hole situation, the far field stresses and well departure angle are determined once the pressure perturbations and stresses are measured on the wellbore casing. The number of wellbore measurements needed for the inverse problem solution also is determined. The technique is also capable of determining the optimal location for inducing a hydraulic fracture, the effect of noisy measurements on the accuracy of the results, and assessing the quality of a bond between a casing and a sealant.Type: GrantFiled: February 8, 2002Date of Patent: December 21, 2004Assignee: University of HoustonInventors: Michael J. Economides, Wolfgang F. J. Deeg, Peter Valko, Michael Nikolaou, Sathish Sankaran
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Publication number: 20030150263Abstract: A system and method for the measurement of the stresses and pressure perturbations surrounding a well, and a system for computing the optimum location for initiating a hydraulic stress fracture. The technique includes using sensors attached to the wellbore casing connected to a data analyzer. The analyzer is capable of analyzing the stresses on the well system. Using an inverse problem framework for an open-hole situation, the far field stresses and well departure angle are determined once the pressure perturbations and stresses are measured on the wellbore casing. The number of wellbore measurements needed for the inverse problem solution also is determined. The technique is also capable of determining the optimal location for inducing a hydraulic fracture, the effect of noisy measurements on the accuracy of the results, and assessing the quality of a bond between a casing and a sealant.Type: ApplicationFiled: February 8, 2002Publication date: August 14, 2003Inventors: Michael J. Economides, Wolfgang F.J. Deeg, Peter Valko, Michael Nikolaou, Sathish Sankaran