Patents by Inventor Ashwin Chandran
Ashwin Chandran 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: 20220320900Abstract: A self-powered sensing system. The sensing system may include a power generator at least partially disposed in a diamond composite heat sink configured to harvest energy from a hazardous environment. The sensing system may further include an energy storage device operatively coupled to the power generator. The sensing system may also include at least one sensor operatively coupled to the energy storage device and a sensor antenna operatively coupled to the at least one sensor. The sensor antenna may be configured to transmit information collected from the at least one sensor to an operation system. The at least one sensor may include a resonance tube having a three-dimensional lattice structure.Type: ApplicationFiled: April 5, 2022Publication date: October 6, 2022Inventors: Navin Sakthivel, Aaron Avagliano, Ashwin Chandran, Lakshmi Jyotshna Vendra
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Publication number: 20190234210Abstract: An apparatus for estimating an ambient environment at which inorganic scale will form in a downhole fluid includes a stress chamber disposed in a borehole in a production zone at a location within a specified range of maximum pressure and configured to receive a sample of the fluid from the production zone and to apply an ambient condition to the sample that causes the formation of inorganic scale. An inorganic scale sensor is configured to sense formation of inorganic scale within the chamber and an ambient environment sensor is configured to sense an ambient environment within the chamber at which the formation of inorganic scale occurs. The apparatus further includes a processor configured to receive measurement data from the inorganic scale sensor and the ambient environment sensor and to identify the ambient environment at which the formation of inorganic scale occurs.Type: ApplicationFiled: April 11, 2019Publication date: August 1, 2019Applicant: Baker Hughes, a GE company, LLCInventors: Aurelie Duchene, Alessandro De Barros, Hartley Downs, Eduardo Motta, Potiani Maciel, Ashwin Chandran, Thomas Scott, Rocco DiFoggio, Tudor Ionescu, Eric Donzier
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Patent number: 10323513Abstract: An apparatus for estimating an ambient environment at which organic scale will form in a downhole fluid includes a stress chamber disposed in a borehole in a production zone at a location of maximum pressure and configured to receive a sample of the fluid from the production zone and to apply an ambient condition to the sample that causes the formation of organic scale. A sensor is configured to sense formation of organic scale within the chamber and an ambient environment sensor is configured to sense an ambient environment within the chamber at which the formation of organic scale occurs. The apparatus further includes a processor configured to receive measurement data from the organic scaling sensor and the ambient environment sensor and to identify the ambient environment at which the formation of organic scale occurs using the organic scaling sensor measurement data and ambient environment sensor measurement data.Type: GrantFiled: July 23, 2015Date of Patent: June 18, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Geiza Esperandio de Oliveira, Hartley Downs, Aurelie Duchene, Eduardo Motta, Potiani Maciel, Ashwin Chandran, Thomas Scott, Rocco DiFoggio, Tudor Ionescu, Eric Donzier
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Patent number: 10323512Abstract: An apparatus for estimating an ambient environment at which inorganic scale will form in a downhole fluid includes a stress chamber disposed in a borehole in a production zone at a location within a specified range of maximum pressure and configured to receive a sample of the fluid from the production zone and to apply an ambient condition to the sample that causes the formation of inorganic scale. An inorganic scale sensor is configured to sense formation of inorganic scale within the chamber and an ambient environment sensor is configured to sense an ambient environment within the chamber at which the formation of inorganic scale occurs. The apparatus further includes a processor configured to receive measurement data from the inorganic scale sensor and the ambient environment sensor and to identify the ambient environment at which the formation of inorganic scale occurs.Type: GrantFiled: July 23, 2015Date of Patent: June 18, 2019Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Aurelie Duchene, Alessandro De Barros, Hartley Downs, Eduardo Motta, Potiani Maciel, Ashwin Chandran, Thomas Scott, Rocco DiFoggio, Tudor Ionescu, Eric Donzier
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Patent number: 10161811Abstract: A distributed temperature sensor and a method of determining temperature are described. The distributed temperature sensor includes an optical fiber to filter or remove Stokes Raman scatter and prevent stimulated Raman scatter and a light source to inject light into the optical fiber. The distributed temperature sensor also includes a photodetector to detect light energy resulting from the light injected into the optical fiber, the light energy including anti-Stokes Raman scatter and Rayleigh scatter; and a processor to determine temperature based on a ratio of the anti-Stokes Raman scatter and the Rayleigh scatter.Type: GrantFiled: March 20, 2015Date of Patent: December 25, 2018Assignee: BAKER HUGHESInventors: Ian Mitchell, William Johnston, Ashwin Chandran
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Patent number: 9989425Abstract: A distributed temperature sensor, a method of determining temperature, and a processing system to compute temperature are described. The sensor includes an optical fiber disposed in an area where temperature is to be measured, a primary light source to inject light into the optical fiber, and a secondary light source to inject light into the optical fiber. The sensor additionally includes a photodetector to detect backscatter light energy from the optical fiber the backscatter light energy including Stokes Raman scatter or anti-Stokes Raman scatter and primary Rayleigh scatter resulting from the primary light source and secondary Rayleigh scatter resulting from the secondary light source, and a processor to determine temperature based on a ratio of the Stokes Raman scatter or the anti-Stokes Raman scatter and a combination of the primary Rayleigh scatter and the secondary Rayleigh scatter.Type: GrantFiled: March 20, 2015Date of Patent: June 5, 2018Assignee: BAKER HUGHES, A GE COMPANY, LLCInventors: Ian Mitchell, William Johnston, Ashwin Chandran
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Patent number: 9488531Abstract: An apparatus for estimating a parameter includes: an optical fiber sensor including at least one optical fiber configured to be disposed in a downhole location and including at least one sensing location configured to generate measurement signals; at least one light source configured to transmit a measurement signal having a wavelength to interrogate a sensing location and cause the sensing location to return a reflected measurement signal indicative of a measured parameter, and configured to transmit a reference signal and cause a reflected reference signal to be returned from a location associated with the sensing location, the reflected reference signal having a known relationship to hydrogen concentration; and a processor configured to receive the reflected measurement signal and the reflected reference signal, estimate the hydrogen concentration based on the reflected reference signal, and calibrate the first reflected signal based on the estimated hydrogen concentration.Type: GrantFiled: August 27, 2013Date of Patent: November 8, 2016Assignee: BAKER HUGHES INCORPORATEDInventors: Paul F. Wysocki, Christopher H. Lambert, Ashwin Chandran
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Publication number: 20160024915Abstract: An apparatus for estimating an ambient environment at which inorganic scale will form in a downhole fluid includes a stress chamber disposed in a borehole in a production zone at a location within a specified range of maximum pressure and configured to receive a sample of the fluid from the production zone and to apply an ambient condition to the sample that causes the formation of inorganic scale. An inorganic scale sensor is configured to sense formation of inorganic scale within the chamber and an ambient environment sensor is configured to sense an ambient environment within the chamber at which the formation of inorganic scale occurs. The apparatus further includes a processor configured to receive measurement data from the inorganic scale sensor and the ambient environment sensor and to identify the ambient environment at which the formation of inorganic scale occurs.Type: ApplicationFiled: July 23, 2015Publication date: January 28, 2016Applicant: Baker Hughes IncorporatedInventors: Aurelie Duchene, Alessandro De Barros, Hartley Downs, Eduardo Motta, Potiani Maciel, Ashwin Chandran, Thomas Scott, Rocco DiFoggio, Tudor Ionescu, Eric Donzier
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Publication number: 20160024916Abstract: An apparatus for estimating an ambient environment at which organic scale will form in a downhole fluid includes a stress chamber disposed in a borehole in a production zone at a location of maximum pressure and configured to receive a sample of the fluid from the production zone and to apply an ambient condition to the sample that causes the formation of organic scale. A sensor is configured to sense formation of organic scale within the chamber and an ambient environment sensor is configured to sense an ambient environment within the chamber at which the formation of organic scale occurs. The apparatus further includes a processor configured to receive measurement data from the organic scaling sensor and the ambient environment sensor and to identify the ambient environment at which the formation of organic scale occurs using the organic scaling sensor measurement data and ambient environment sensor measurement data.Type: ApplicationFiled: July 23, 2015Publication date: January 28, 2016Applicant: BAKER HUGHES INCORPORATEDInventors: Geiza Esperandio de Oliveira, Hartley Downs, Aurelie Duchene, Eduardo Motta, Potiani Maciel, Ashwin Chandran, Thomas Scott, Rocco DiFoggio, Tudor Ionescu, Eric Donzier
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Publication number: 20150300891Abstract: A distributed temperature sensor, a method of determining temperature, and a processing system to compute temperature are described. The sensor includes an optical fiber disposed in an area where temperature is to be measured, a primary light source to inject light into the optical fiber, and a secondary light source to inject light into the optical fiber. The sensor additionally includes a photodetector to detect backscatter light energy from the optical fiber the backscatter light energy including Stokes Raman scatter or anti-Stokes Raman scatter and primary Rayleigh scatter resulting from the primary light source and secondary Rayleigh scatter resulting from the secondary light source, and a processor to determine temperature based on a ratio of the Stokes Raman scatter or the anti-Stokes Raman scatter and a combination of the primary Rayleigh scatter and the secondary Rayleigh scatter.Type: ApplicationFiled: March 20, 2015Publication date: October 22, 2015Applicant: BAKER HUGHES INCORPORATEDInventors: Ian Mitchell, William Johnston, Ashwin Chandran
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Publication number: 20150292956Abstract: A distributed temperature sensor and a method of determining temperature are described. The distributed temperature sensor includes an optical fiber to filter or remove Stokes Raman scatter and prevent stimulated Raman scatter and a light source to inject light into the optical fiber. The distributed temperature sensor also includes a photodetector to detect light energy resulting from the light injected into the optical fiber, the light energy including anti-Stokes Raman scatter and Rayleigh scatter; and a processor to determine temperature based on a ratio of the anti-Stokes Raman scatter and the Rayleigh scatter.Type: ApplicationFiled: March 20, 2015Publication date: October 15, 2015Applicant: Baker Hughes IncorporatedInventors: Ian Mitchell, William Johnston, Ashwin Chandran
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Publication number: 20150063418Abstract: An apparatus for estimating a parameter includes: an optical fiber sensor including at least one optical fiber configured to be disposed in a downhole location and including at least one sensing location configured to generate measurement signals; at least one light source configured to transmit a measurement signal having a wavelength to interrogate a sensing location and cause the sensing location to return a reflected measurement signal indicative of a measured parameter, and configured to transmit a reference signal and cause a reflected reference signal to be returned from a location associated with the sensing location, the reflected reference signal having a known relationship to hydrogen concentration; and a processor configured to receive the reflected measurement signal and the reflected reference signal, estimate the hydrogen concentration based on the reflected reference signal, and calibrate the first reflected signal based on the estimated hydrogen concentration.Type: ApplicationFiled: August 27, 2013Publication date: March 5, 2015Applicant: BAKER HUGHES INCORPORATEDInventors: Paul F. Wysocki, Christopher H. Lambert, Ashwin Chandran