Patents by Inventor Sushant Dutta
Sushant Dutta 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: 20240125965Abstract: In at least one embodiment, a well inspection method and system is disclosed. The method includes transmitting an acoustic signal from a well inspection tool into a casing structure, receiving return signals from the casing structure to the well inspection tool, performing, using at least one processor associated with the well inspection tool, a Fast Fourier Transform (FFT) on a plurality of frequencies of the return signals to generate spectrogram data, determining entropy spectra from the spectrogram data, and determining casing loadings associated with the casing structure based at least in part on the entropy spectra.Type: ApplicationFiled: October 18, 2022Publication date: April 18, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Baoyan Li, Elan Yogeswaren, Dalila Balmaceda, Wei Han, Roger Steinsiek, Joseph Olaiya, Marc Ramirez, Sushant Dutta
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Publication number: 20240085583Abstract: A system for determinations associated with pipe eccentricity in a downhole environment includes a downhole tool having first transducers to provide first shear horizontal waves to the downhole environment and second transducers to provide first Lamb waves to the downhole environment, and includes memory storing instructions and a processor to execute the instructions from the memory to cause the system to receive, using the first transducers, second shear horizontal waves returned from the downhole environment and to receive, using the second transducers, second Lamb waves returned from the downhole environment, and further to determine shear horizontal third-interface echoes (TIEs) or Lamb TIEs from the second shear horizontal waves or the second Lamb waves and to determine the pipe eccentricity of the casing based in part on the one or more of the shear horizontal TIEs or the Lamb TIEs.Type: ApplicationFiled: September 8, 2023Publication date: March 14, 2024Applicant: Baker Hughes Oilfield Operations LLCInventors: Jose Mauricio Garcia Roman, Joseph Olaiya, Baoyan Li, Sebastien Kamgang, Douglas Patterson, Sushant Dutta
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Patent number: 11762120Abstract: A system for performing downhole logging operations includes a conductor coil configured to alternate between producing a magnetic field and measuring a magnetic field induced in a formation, a power supply couplable to the conductor coil for providing an electrical control current to conductor coil, and a signal acquisition system couplable to the conductor coil. The system further includes a permanent magnet coupled to the conductor coil, and a multi-state switch operable in a first state and a second state. In the first state, the conductor coil is coupled to an output of the power supply and decoupled from an input of the signal acquisition system. In the second state, the conductor coil is coupled to the input of acquisition electronics and decoupled from the output of the power supply.Type: GrantFiled: September 14, 2020Date of Patent: September 19, 2023Assignee: Baker Hughes Holdings LLCInventors: Stanislav Forgang, Babak Kouchmeshky, Sushant Dutta, Randy Gold
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Patent number: 11719849Abstract: A method includes obtaining a dielectric measurement of a portion of a downhole formation. The method also includes processing the dielectric measurement via a trained machine learning system. The method further includes determining at least one of a classification or a textural parameter simultaneously with formation water saturation of the downhole formation, via the machine learning system, based at least in part on the dielectric measurement. The machine learning system is based on a pre-determined dataset from previous measurements or simulated results of synthetic cases. The method determining the correlation between water saturation and formation texture through a frequency cascading training process based on sensitivity of complex dielectric spectrum with respect to desired parameters including water saturation and texture parameter. The method also includes assigning at least one of the classification or the textural parameter to the downhole formation.Type: GrantFiled: October 24, 2018Date of Patent: August 8, 2023Assignee: Baker Hughes Holdings LLCInventors: Yinxi Zhang, Sushant Dutta
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Patent number: 11560781Abstract: A computer-implemented method includes receiving a plurality of sensor signals, each signal of the plurality of sensor signals being tagged with an associated time and depth. The method also includes selecting a baseline signal. The method further includes comparing a selected sensor signal, of the plurality of sensor signals, to the baseline signal. The method also includes determining a difference between the baseline signal and the selected sensor signal exceeds a threshold. The method includes identifying, based at least in part on the difference, a feature of interest associated with the selected sensor signal.Type: GrantFiled: June 19, 2020Date of Patent: January 24, 2023Assignee: Baker Hughes Oilfield Operations LLCInventors: Sushant Dutta, Joseph Olaiya, Otto Fanini
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Patent number: 11460446Abstract: A method is provided of inspecting a nested multi-layer structure including a first and second electrically conductive layer and a third layer disposed behind the second conductive layer. The method includes deploying a sensor device including an electromagnetic acoustic transducer to a borehole location proximate to the structure, generating a drive signal including a plurality of frequencies, applying an electrical current signal to the sensor device based on the drive signal and inducing currents in the first conductive layer that induce currents generating acoustic signals having the plurality of frequencies, detecting a first set of resonant frequencies based on received electromagnetic signals, detecting a second set of resonant frequencies based on received acoustic signals, estimating a property of the first and/or the second conductive layer based on the first set of resonant frequencies, and estimating a property of the third layer based on the second set of resonant frequencies.Type: GrantFiled: April 21, 2020Date of Patent: October 4, 2022Assignee: BAKER HUGHES OILFIELD OPERATIONS LLCInventors: Sushant Dutta, Otto Fanini, Joseph Olaiya, Sandip Maity, Wei Han, Scott Ingram
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Patent number: 11422205Abstract: A system for determining a stuck point of a pipe positioned within a wellbore includes a tubular housing and a sensor array positioned within the tubular housing. The system also includes ferromagnetic flux collectors and flux concentrators on either side of the sensor array. The flux collectors collect a magnetic flux that has been written to a portion of pipe. The flux concentrators intensify the flux to improve measurements of the flux that are acquired by the sensor array.Type: GrantFiled: April 29, 2020Date of Patent: August 23, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: James David Ratcliffe, Andrew Smith, Jim Andrew Gulliver, Sushant Dutta
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Patent number: 11287545Abstract: A system for determining a stuck point of a pipe positioned within a wellbore includes a tubular housing and a sensor array positioned within the tubular housing, the sensor array arranged at a first end. The system also includes a first magnetic source positioned within the tubular housing, the first magnetic source arranged at a second end. The system further includes a second magnetic source positioned within the tubular housing, the second magnetic source arranged between the sensor array and the second end. The first magnetic source and the second magnetic source have a different magnetic field source.Type: GrantFiled: December 26, 2019Date of Patent: March 29, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: Jim Andrew Gulliver, Andrew Smith, James David Ratcliffe, Sushant Dutta
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Patent number: 11269021Abstract: A system for determining a stuck point of a pipe positioned within a wellbore includes a tubular housing and a sensor array positioned within the tubular housing. The system also includes ferromagnetic flux collectors and flux concentrators on either side of the sensor array. The flux collectors collect a magnetic flux that has been written to a portion of pipe. The flux concentrators intensify the flux to improve measurements of the flux that are acquired by the sensor array.Type: GrantFiled: June 24, 2020Date of Patent: March 8, 2022Assignee: Baker Hughes Oilfield Operations LLCInventors: James David Ratcliffe, Andrew Smith, Jim Andrew Gulliver, Sushant Dutta
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Publication number: 20210341552Abstract: A system for determining a stuck point of a pipe positioned within a wellbore includes a tubular housing and a sensor array positioned within the tubular housing. The system also includes ferromagnetic flux collectors and flux concentrators on either side of the sensor array. The flux collectors collect a magnetic flux that has been written to a portion of pipe. The flux concentrators intensify the flux to improve measurements of the flux that are acquired by the sensor array.Type: ApplicationFiled: June 24, 2020Publication date: November 4, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: James David Ratcliffe, Andrew Smith, Jim Andrew Gulliver, Sushant Dutta
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Publication number: 20210341551Abstract: A system for determining a stuck point of a pipe positioned within a wellbore includes a tubular housing and a sensor array positioned within the tubular housing. The system also includes ferromagnetic flux collectors and flux concentrators on either side of the sensor array. The flux collectors collect a magnetic flux that has been written to a portion of pipe. The flux concentrators intensify the flux to improve measurements of the flux that are acquired by the sensor array.Type: ApplicationFiled: April 29, 2020Publication date: November 4, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: James David Ratcliffe, Andrew Smith, Jim Andrew Gulliver, Sushant Dutta
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Publication number: 20210325345Abstract: A method is provided of inspecting a nested multi-layer structure including a first and second electrically conductive layer and a third layer disposed behind the second conductive layer. The method includes deploying a sensor device including an electromagnetic acoustic transducer to a borehole location proximate to the structure, generating a drive signal including a plurality of frequencies, applying an electrical current signal to the sensor device based on the drive signal and inducing currents in the first conductive layer that induce currents generating acoustic signals having the plurality of frequencies, detecting a first set of resonant frequencies based on received electromagnetic signals, detecting a second set of resonant frequencies based on received acoustic signals, estimating a property of the first and/or the second conductive layer based on the first set of resonant frequencies, and estimating a property of the third layer based on the second set of resonant frequencies.Type: ApplicationFiled: April 21, 2020Publication date: October 21, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Sushant Dutta, Otto Fanini, Joseph Olaiya, Wei Han, Scott Ingram
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Publication number: 20210199837Abstract: A system for determining a stuck point of a pipe positioned within a wellbore includes a tubular housing and a sensor array positioned within the tubular housing, the sensor array arranged at a first end. The system also includes a first magnetic source positioned within the tubular housing, the first magnetic source arranged at a second end. The system further includes a second magnetic source positioned within the tubular housing, the second magnetic source arranged between the sensor array and the second end. The first magnetic source and the second magnetic source have a different magnetic field source.Type: ApplicationFiled: December 26, 2019Publication date: July 1, 2021Applicant: Baker Hughes Oilfield Operations LLCInventors: Jim Andrew Gulliver, Andrew Smith, James David Ratcliffe, Sushant Dutta
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Publication number: 20200408947Abstract: A system for performing downhole logging operations includes a conductor coil configured to alternate between producing a magnetic field and measuring a magnetic field induced in a formation, a power supply couplable to the conductor coil for providing an electrical control current to conductor coil, and a signal acquisition system couplable to the conductor coil. The system further includes a permanent magnet coupled to the conductor coil, and a multi-state switch operable in a first state and a second state. In the first state, the conductor coil is coupled to an output of the power supply and decoupled from an input of the signal acquisition system. In the second state, the conductor coil is coupled to the input of acquisition electronics and decoupled from the output of the power supply.Type: ApplicationFiled: September 14, 2020Publication date: December 31, 2020Applicant: Baker Hughes, a GE Company, LLCInventors: Stanislav Forgang, Babak Kouchmeshky, Sushant Dutta, Randy Gold
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Publication number: 20200400008Abstract: A computer-implemented method includes receiving a plurality of sensor signals, each signal of the plurality of sensor signals being tagged with an associated time and depth. The method also includes selecting a baseline signal. The method further includes comparing a selected sensor signal, of the plurality of sensor signals, to the baseline signal. The method also includes determining a difference between the baseline signal and the selected sensor signal exceeds a threshold. The method includes identifying, based at least in part on the difference, a feature of interest associated with the selected sensor signal.Type: ApplicationFiled: June 19, 2020Publication date: December 24, 2020Applicant: Baker Hughes Oilfield Operations LLCInventors: Sushant Dutta, Joseph Olaiya, Otto Fanini
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Publication number: 20200174150Abstract: A system for performing downhole logging operations includes a power supply for providing a current and a conductor coil electrically coupled to receive the current from the power supply. The system further includes a switch electrically coupled to the power supply for controlling current provided to the conductor coil and enabling a pulse of current to be supplied to the conductor coil for an “on” duration and turning off current provided to the conductor coil for an “off” duration after the “on” duration, in which the “off” duration lasts longer than the “on” duration. The system also includes a permanent magnet coupled to the conductor coil. The conductor coil receives the pulse of current from the power supply during the “on” duration and not receiving current during the “off” duration. The pulse of current causes the permanent magnet to reverse polarity and generate a transient magnetic field.Type: ApplicationFiled: November 29, 2018Publication date: June 4, 2020Applicant: Baker Hughes, a GE Company, LLCInventors: Stanislav Forgang, Babak Kouchmeshky, Sushant Dutta, Randy Gold
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Publication number: 20200132875Abstract: Embodiments include a method that includes obtaining a dielectric measurement of a portion of a downhole formation. The method also includes processing the dielectric measurement via a trained machine learning system. The method further includes determining at least one of a classification or a textural parameter simultaneously with formation water saturation of the downhole formation, via the machine learning system, based at least in part on the dielectric measurements. The machine learning system is based on pre-determined dataset from previous measurements or simulated results of synthetic cases. The method detangled the correlation between water saturation and formation texture through a frequency cascading training process based on sensitivity of complex dielectric spectrum with respect to desired parameters including water saturation and texture parameter. The method also includes assigning at least one of the classification or the textural parameter to the downhole formation.Type: ApplicationFiled: October 24, 2018Publication date: April 30, 2020Applicant: Baker Hughes, a GE Company, LLCInventors: Yinxi Zhang, Sushant Dutta