Patents by Inventor Khaled Hadj-Sassi
Khaled Hadj-Sassi 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: 11774622Abstract: A method, computer program product, and computing system for receiving downhole logging data for a porous media. A pore size distribution index may be estimated based upon, at least in part, nuclear magnetic resonance data (NMR) from the downhole logging data of the porous media. A relative permeability and capillary pressure curve may be generated with a feasible region of solutions based upon, at least in part, the pore size distribution index.Type: GrantFiled: November 6, 2018Date of Patent: October 3, 2023Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Lalitha Venkataramanan, Lin Liang, Vasileios-Marios Gkortsas, Khaled Hadj-Sassi, Albina Mutina, Tarek Habashy
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Publication number: 20210396904Abstract: A method, computer program product, and computing system for receiving downhole logging data for a porous media. A pore size distribution index may be estimated based upon, at least in part, nuclear magnetic resonance data (NMR) from the downhole logging data of the porous media. A relative permeability and capillary pressure curve may be generated with a feasible region of solutions based upon, at least in part, the pore size distribution index.Type: ApplicationFiled: November 6, 2018Publication date: December 23, 2021Inventors: Lalitha Venkataramanan, Lin Liang, Vasileios-Marios Gkortsas, Khaled Hadj-Sassi, Albina Mutina, Tarek Habashy
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Patent number: 10472936Abstract: A mineralogy composition of a formation of interest is determined using core samples or downhole measurements. A dry permittivity is determined for each identified mineral. A volumetric mixing law is employed using the determined mineralogy composition and the determined dry permitivities. An effective matrix permittivity is determined using results from the volumetric mixing law. Dielectric dispersion measurements of the subject formation are acquired using the core samples or the downhole measurements. A dielectric petrophysical model is produced using the dielectric dispersion measurements and the effective matrix permittivity. A water saturation is estimated based on the dielectric petrophysical model. Nuclear magnetic resonance (NMR) T2 measurements having short echo spacings are acquired. A NMR petrophysical model is generated based on the NMR T2 measurements. A total porosity is determined based on the generated NMR petrophysical model.Type: GrantFiled: May 21, 2019Date of Patent: November 12, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Khaled Hadj-Sassi, Mohammed Badri
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Publication number: 20190271213Abstract: A mineralogy composition of a formation of interest is determined using core samples or downhole measurements. A dry permittivity is determined for each identified mineral. A volumetric mixing law is employed using the determined mineralogy composition and the determined dry permitivities. An effective matrix permittivity is determined using results from the volumetric mixing law. Dielectric dispersion measurements of the subject formation are acquired using the core samples or the downhole measurements. A dielectric petrophysical model is produced using the dielectric dispersion measurements and the effective matrix permittivity. A water saturation is estimated based on the dielectric petrophysical model. Nuclear magnetic resonance (NMR) T2 measurements having short echo spacings are acquired. A NMR petrophysical model is generated based on the NMR T2 measurements. A total porosity is determined based on the generated NMR petrophysical model.Type: ApplicationFiled: May 21, 2019Publication date: September 5, 2019Inventors: Khaled Hadj-Sassi, Mohammed Badri
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Patent number: 10329884Abstract: A mineralogy composition of a formation of interest is determined using core samples or downhole measurements. A dry permittivity is determined for each identified mineral. A volumetric mixing law is employed using the determined mineralogy composition and the determined dry permitivities. An effective matrix permittivity is determined using results from the volumetric mixing law. Dielectric dispersion measurements of the subject formation are acquired using the core samples or the downhole measurements. A dielectric petrophysical model is produced using the dielectric dispersion measurements and the effective matrix permittivity. A water saturation is estimated based on the dielectric petrophysical model. Nuclear magnetic resonance (NMR) T2 measurements having short echo spacings are acquired. A NMR petrophysical model is generated based on the NMR T2 measurements. A total porosity is determined based on the generated NMR petrophysical model.Type: GrantFiled: February 17, 2014Date of Patent: June 25, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Khaled Hadj-Sassi, Mohammed Badri
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Patent number: 10330819Abstract: The wettability of a formation may be estimated using a multi-frequency dielectric measurement tool. Multi-frequency dielectric dispersion measurements are made using the multi-frequency dielectric measurement tool on a sample. The bulk density and the total porosity of the sample are also otherwise acquired. The bulk density, matrix permittivity, total porosity, and multi-frequency dielectric dispersion measurements are input into a petrophysical dielectric model and the petrophysical dielectric model is applied to obtain inversion results. A wettability state of the sample is determined using the inversion results and one or more reservoir management decisions are made based on the determined wettability state of the sample. A non-transitory, computer-readable storage medium may be provided that has stored on it one or more programs that provide instructions.Type: GrantFiled: October 30, 2014Date of Patent: June 25, 2019Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Khaled Hadj-Sassi, Mohammed Badri
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Patent number: 9891153Abstract: A system is described for evaluating coagulation of particles in a downhole fluid-particle mixture based on dielectric measurements. An example downhole treatment is one in which flocs are used to plug a high-permeability subterranean formation zone as part of a stimulation procedure. An injection tube is positioned within the wellbore to the high-permeability zone. An instrumented section of tubing includes one or more dielectric probes that are positioned and configured to make dielectric measurements of the particle-fluid mixture flowing in the tubing or in the annulus. The downhole dielectric measurements are used to indicate whether or not the particle-fluid mixture has the desired structural properties. An operator on the surface can make adjustments in real-time according to the received dielectric measurements.Type: GrantFiled: September 19, 2013Date of Patent: February 13, 2018Assignee: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Mustapha Abbad, Khaled Hadj-Sassi, Stephen Dyer
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Publication number: 20160061803Abstract: A mineralogy composition of a formation of interest is determined using core samples or downhole measurements. A dry permittivity is determined for each identified mineral. A volumetric mixing law is employed using the determined mineralogy composition and the determined dry permitivities. An effective matrix permittivity is determined using results from the volumetric mixing law. Dielectric dispersion measurements of the subject formation are acquired using the core samples or the downhole measurements. A dielectric petrophysical model is produced using the dielectric dispersion measurements and the effective matrix permittivity. A water saturation is estimated based on the dielectric petrophysical model. Nuclear magnetic resonance (NMR) T2 measurements having short echo spacings are acquired. A NMR petrophysical model is generated based on the NMR T2 measurements. A total porosity is determined based on the generated NMR petrophysical model.Type: ApplicationFiled: February 17, 2014Publication date: March 3, 2016Inventors: Khaled Hadj-Sassi, Mohammed Badri
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Patent number: 9188697Abstract: Downhole gravity measurements are used to monitor the volumetric sweep of CO2 and estimate the fingering phenomenon if any. The gravity measurements have been found to be effective due to the high density contrast between CO2 and brine or oil which provides better and higher sensitivity. An analytical forward model is used to determine the location and shape characteristics of the flooding front. A strategy to monitor the movement of the CO2 flooding front and to predict the fingering phenomenon is used to provide a warning tool to improve the sweep efficiency, according to some embodiments.Type: GrantFiled: January 4, 2012Date of Patent: November 17, 2015Assignee: Schlumberger Technology CorporationInventors: Mohammed Badri, Patrice Ligneul, Khaled Hadj-Sassi
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Publication number: 20150127264Abstract: The wettability of a formation may be estimated using a multi-frequency dielectric measurement tool. Multi-frequency dielectric dispersion measurements are made using the multi-frequency dielectric measurement tool on a sample. The bulk density and the total porosity of the sample are also otherwise acquired. The bulk density, matrix permittivity, total porosity, and multi-frequency dielectric dispersion measurements are input into a petrophysical dielectric model and the petrophysical dielectric model is applied to obtain inversion results. A wettability state of the sample is determined using the inversion results and one or more reservoir management decisions are made based on the determined wettability state of the sample. A non-transitory, computer-readable storage medium may be provided that has stored on it one or more programs that provide instructions.Type: ApplicationFiled: October 30, 2014Publication date: May 7, 2015Inventors: Khaled Hadj-Sassi, Mohammed Badri
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Publication number: 20150075272Abstract: A system is described for evaluating coagulation of particles in a downhole fluid-particle mixture based on dielectric measurements. An example downhole treatment is one in which flocs are used to plug a high-permeability subterranean formation zone as part of a stimulation procedure. An injection tube is positioned within the wellbore to the high-permeability zone. An instrumented section of tubing includes one or more dielectric probes that are positioned and configured to make dielectric measurements of the particle-fluid mixture flowing in the tubing or in the annulus. The downhole dielectric measurements are used to indicate whether or not the particle-fluid mixture has the desired structural properties. An operator on the surface can make adjustments in real-time according to the received dielectric measurements.Type: ApplicationFiled: September 19, 2013Publication date: March 19, 2015Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: MUSTAPHA ABBAD, KHALED HADJ-SASSI, STEPHEN DYER
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Patent number: 8571842Abstract: A method of simultaneously determining multiple parameters or a parameter distribution characterizing material properties of a volume under investigation using an inversion process of sparse measurements is described including the step of defining an initial model of the volume and modifying the initial model by matching the multiple parameters or parameter distribution with the measurements using alternatingly an iterative inversion method and a probabilistic inversion method, and determining the multiple parameters or parameter distribution after one or more iterations of the alternating inversions.Type: GrantFiled: June 21, 2010Date of Patent: October 29, 2013Assignee: Schlumberger Technology CorporationInventors: Khaled Hadj-Sassi, Jean-Marc Donadille
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Publication number: 20130173166Abstract: Downhole gravity measurements are used to monitor the volumetric sweep of CO2 and estimate the fingering phenomenon if any. The gravity measurements have been found to be effective due to the high density contrast between CO2 and brine or oil which provides better and higher sensitivity. An analytical forward model is used to determine the location and shape characteristics of the flooding front. A strategy to monitor the movement of the CO2 flooding front and to predict the fingering phenomenon is used to provide a warning tool to improve the sweep efficiency, according to some embodiments.Type: ApplicationFiled: January 4, 2012Publication date: July 4, 2013Inventors: MOHAMMED BADRI, PATRICE LIGNEUL, KHALED HADJ-SASSI
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Patent number: 8141259Abstract: A method of determining the dip or apparent dip of a section of a subterranean formation is described using the measurements of a borehole gravity meter and a dip-dependent model for the response of the gravity meter.Type: GrantFiled: June 9, 2010Date of Patent: March 27, 2012Assignee: Schlumberger Technology CorporationInventors: Jean-Marc Donadille, Khaled Hadj-Sassi
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Publication number: 20110313737Abstract: A method of simultaneously determining multiple parameters or a parameter distribution characterizing material properties of a volume under investigation using an inversion process of sparse measurements is described including the step of defining an initial model of the volume and modifying the initial model by matching the multiple parameters or parameter distribution with the measurements using alternatingly an iterative inversion method and a probabilistic inversion method, and determining the multiple parameters or parameter distribution after one or more iterations of the alternating inversions.Type: ApplicationFiled: June 21, 2010Publication date: December 22, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Khaled Hadj-Sassi, Jean-Marc Donadille
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Publication number: 20110303005Abstract: A method of determining the dip or apparent dip of a section of a subterranean formation is described using the measurements of a borehole gravity meter and a dip-dependent model for the response of the gravity meter.Type: ApplicationFiled: June 9, 2010Publication date: December 15, 2011Applicant: SCHLUMBERGER TECHNOLOGY CORPORATIONInventors: Jean-Marc Donadille, Khaled Hadj-Sassi