Patents by Inventor Ridvan Akkurt

Ridvan Akkurt 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).

  • Publication number: 20220018983
    Abstract: Sonic logging data including a sonic waveform associated with a plurality of shot gathers is accessed. A transformation operator is applied to the sonic logging data to provide a transformed sonic image, the transformation operator including at least one of a short time average long time average (STA/LTA) operator, a phase shift operator, and a deconvolution operator. A machine learning process is performed using the transformed sonic image to determine a sonic slowness associated with the sonic logging data. The sonic slowness is provided as an output.
    Type: Application
    Filed: October 1, 2019
    Publication date: January 20, 2022
    Inventors: Bassem Khadhraoui, Lu Duc Duong Lam, Ridvan Akkurt, Hiroaki Yamamoto, Erik Wielemaker, Saad Kisra
  • Publication number: 20210110280
    Abstract: A method includes receiving well log data for a plurality of wells. A flag is generated based at least partially on the well log data. The wells are sorted into groups based at least partially on the well log data, the flag, or both. A model is built for each of the wells based at least partially on the well log data, the flag, and the groups.
    Type: Application
    Filed: May 7, 2018
    Publication date: April 15, 2021
    Inventors: Ridvan Akkurt, David Psaila
  • Patent number: 10802099
    Abstract: A methods are provided for investigating a sample containing hydrocarbons by subjecting the sample to a nuclear magnetic resonance (NMR) sequence using NMR equipment, using the NMR equipment to detect signals from the sample in response to the NMR sequence, analyzing the signals to extract a distribution of relaxation times (or diffusions), and computing a value for a parameter of the sample as a function of at least one of the relaxation times (or diffusions), wherein the computing utilizes a correction factor that modifies the value for the parameter as a function of relaxation time for at least short relaxation times (or as a function of diffusion for at least large diffusion coefficients).
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: October 13, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lalitha Venkataramanan, Fred K. Gruber, Tarek M. Habashy, Ridvan Akkurt, Badarinadh Vissapragada, Richard E. Lewis, Erik Rylander
  • Patent number: 10613250
    Abstract: Anisotropic elastic properties and subsequently in situ stress properties for a rock formation surrounding a wellbore are computed from rock physics and geomechanical models. Mineralogy data measured from DRIFTS on cuttings from the wellbore and rock physics and geomechanical models that have been log-calibrated in another wellbore are used in the computation. The method includes: (1) Defining and calibrating rock physics and geomechanical models using data from the first wellbore; (2) using DRIFTS analysis to measure mineralogy data on rock cuttings obtained through drilling operation in the second wellbore; and (3) using previously calibrated models to estimate in situ stress properties, including a stress index and the minimum principal stress magnitude.
    Type: Grant
    Filed: July 23, 2015
    Date of Patent: April 7, 2020
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Romain Prioul, Safdar Abbas, Ridvan Akkurt
  • Patent number: 10451763
    Abstract: Methods and systems are provided for investigating a rock sample, in which wideband electromagnetic response data are obtained and processed by inversion in order to determine values for a plurality of parameters of the rock sample. The wideband electromagnetic response data is derived from electromagnetic measurements of the rock sample at frequencies that fall within a wideband of frequencies, wherein the wideband of frequencies includes a low frequency sub-band that is sensitive to conductivity of the rock sample and a high frequency sub-band that is sensitive to the permittivity of the rock sample. In one embodiment, the inversion can employ a wideband model that accounts for two different polarization mechanisms. The wideband model can be used to describe predicted electromagnetic response of the rock sample at frequencies that fall within the wideband of frequencies.
    Type: Grant
    Filed: October 27, 2016
    Date of Patent: October 22, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Nikita Valentinovich Seleznev, Chang-Yu Hou, Denise Freed, Ridvan Akkurt
  • Publication number: 20190293834
    Abstract: Methods and systems for augmented geological service characterization are described. An embodiment of a method includes generating a geological service characterization process in response to one or more geological service objectives and a geological service experience information set. Such a method may also include augmenting the geological service characterization process by machine learning in response to a training information set. Additionally, the method may include generating an augmented geological service characterization process in response to the determination information.
    Type: Application
    Filed: June 12, 2019
    Publication date: September 26, 2019
    Inventors: Shashi MENON, Aria ABUBAKAR, Vikas JAIN, David Furse ALLEN, John RASMUS, John Paul HORKOWITZ, Valerian GUILLOT, Florent D'HALLUIN, Ridvan AKKURT, Sylvain WLODARCZYK
  • Patent number: 10422924
    Abstract: Methods of generating structural models of highly deviated or horizontal wells may be generated from the measurement of true stratigraphic thickness in three dimensions (TST3D). In one aspect, methods may include generating a structural model from one or more deviation surveys of a horizontal well, one or more single channel log measurements, and a three-dimensional reference surface.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: September 24, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Tuanfeng Zhang, Neil F. Hurley, Ridvan Akkurt, David McCormick, Shu Zhang
  • Patent number: 10385259
    Abstract: Treatment methods and treatment fluids for increasing permeability of organic shale formations are described herein. The treatment method includes treating an organic shale formation with a treatment fluid. The treatment fluid includes a solvent that dissolves bitumen in the shale formation. After treating the shale formation with the treatment fluid, oil is recovered from the shale formation. By removing bitumen from pores and pore throats within the formation, the solvent increases permeability of the formation and allows mobile oil to flow more easily through the formation.
    Type: Grant
    Filed: August 7, 2014
    Date of Patent: August 20, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: George Waters, Richard Lewis, Erik Rylander, Andrew E. Pomerantz, Ridvan Akkurt, Roderick Bovee, Syed A. Ali
  • Publication number: 20190011517
    Abstract: A methods are provided for investigating a sample containing hydrocarbons by subjecting the sample to a nuclear magnetic resonance (NMR) sequence using NMR equipment, using the NMR equipment to detect signals from the sample in response to the NMR sequence, analyzing the signals to extract a distribution of relaxation times (or diffusions), and computing a value for a parameter of the sample as a function of at least one of the relaxation times (or diffusions), wherein the computing utilizes a correction factor that modifies the value for the parameter as a function of relaxation time for at least short relaxation times (or as a function of diffusion for at least large diffusion coefficients).
    Type: Application
    Filed: April 3, 2018
    Publication date: January 10, 2019
    Inventors: Lalitha Venkataramanan, Fred K. Gruber, Tarek M. Habashy, Ridvan Akkurt, Badarinadh Vissapragada, Richard E. Lewis, Erik Rylander
  • Patent number: 10151674
    Abstract: Oil-based mud cuttings are cleaned of drilling fluid and mud additives. After sorting and rinsing the cuttings with diesel, the cuttings are put in a syringe, which is repeatedly filled and emptied of diesel. The cuttings are then washed in the syringe with pentane. The cuttings are then crushed and exposed to a solvent a second time. Instead of placing the cuttings in the syringe, alternatively, the cuttings remain on a sieve and the syringe is used to spray the cuttings with diesel, followed by pentane.
    Type: Grant
    Filed: January 19, 2017
    Date of Patent: December 11, 2018
    Inventors: Mary Ellen Loan, Michael Herron, Ridvan Akkurt, Andrew Emil Pomerantz
  • Publication number: 20180202906
    Abstract: Oil-based mud cuttings are cleaned of drilling fluid and mud additives. After sorting and rinsing the cuttings with diesel, the cuttings are put in a syringe, which is repeatedly filled and emptied of diesel. The cuttings are then washed in the syringe with pentane. The cuttings are then crushed and exposed to a solvent a second time. Instead of placing the cuttings in the syringe, alternatively, the cuttings remain on a sieve and the syringe is used to spray the cuttings with diesel, followed by pentane.
    Type: Application
    Filed: January 19, 2017
    Publication date: July 19, 2018
    Inventors: Mary Ellen Loan, Michael Herron, Ridvan Akkurt, Andrew Emil Pomerantz
  • Publication number: 20180120468
    Abstract: Methods and systems are provided for investigating a rock sample, in which wideband electromagnetic response data are obtained and processed by inversion in order to determine values for a plurality of parameters of the rock sample. The wideband electromagnetic response data is derived from electromagnetic measurements of the rock sample at frequencies that fall within a wideband of frequencies, wherein the wideband of frequencies includes a low frequency sub-band that is sensitive to conductivity of the rock sample and a high frequency sub-band that is sensitive to the permittivity of the rock sample. In one embodiment, the inversion can employ a wideband model that accounts for two different polarization mechanisms. The wideband model can be used to describe predicted electromagnetic response of the rock sample at frequencies that fall within the wideband of frequencies.
    Type: Application
    Filed: October 27, 2016
    Publication date: May 3, 2018
    Inventors: Nikita Valentinovich Seleznev, Chang-Yu Hou, Denise Freed, Ridvan Akkurt
  • Patent number: 9939506
    Abstract: A methods are provided for investigating a sample containing hydrocarbons by subjecting the sample to a nuclear magnetic resonance (NMR) sequence using NMR equipment, using the NMR equipment to detect signals from the sample in response to the NMR sequence, analyzing the signals to extract a distribution of relaxation times (or diffusions), and computing a value for a parameter of the sample as a function of at least one of the relaxation times (or diffusions), wherein the computing utilizes a correction factor that modifies the value for the parameter as a function of relaxation time for at least short relaxation times (or as a function of diffusion for at least large diffusion coefficients).
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: April 10, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Lalitha Venkataramanan, Fred K. Gruber, Tarek M. Habashy, Ridvan Akkurt, Badarinadh Vissapragada, Richard E. Lewis, Erik Rylander
  • Patent number: 9810062
    Abstract: Embodiments herein relate to a method for recovering hydrocarbons from a formation including collecting and analyzing a formation sample, drilling operation data, and wellbore pressure measurement, estimating a reservoir and completion quality, and performing an oil field service in a region of the formation comprising the quality. In some embodiments, the formation sample is a solid collected from the drilling operation or includes cuttings or a core sample.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: November 7, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ridvan Akkurt, Romain Charles Andre Prioul, Andrew E. Pomerantz
  • Publication number: 20170235016
    Abstract: Anisotropic elastic properties and subsequently in situ stress properties for a rock formation surrounding a wellbore are computed from rock physics and geomechanical models. Mineralogy data measured from DRIFTS on cuttings from the wellbore and rock physics and geomechanical models that have been log-calibrated in another wellbore are used in the computation. The method includes: (1) Defining and calibrating rock physics and geomechanical models using data from the first wellbore; (2) using DRIFTS analysis to measure mineralogy data on rock cuttings obtained through drilling operation in the second wellbore; and (3) using previously calibrated models to estimate in situ stress properties, including a stress index and the minimum principal stress magnitude.
    Type: Application
    Filed: July 23, 2015
    Publication date: August 17, 2017
    Inventors: Romain Prioul, Safdar Abbas, Ridvan Akkurt
  • Patent number: 9720124
    Abstract: Apparatus and methods for characterizing hydrocarbons in a subterranean formation include obtaining a sample of the subterranean formation; measuring, uphole, the porosity of the sample; using a nuclear magnetic resonance (NMR) tool downhole in the borehole, sending NMR pulse sequences configured for formation pore size and measuring NMR signals that characterize the formation at a location in the formation; analyzing the signals to find a gas porosity of the formation at the location; and determining a hydrogen index (HIg) of the subterranean formation from the gas porosity and from the porosity of the sample. The obtained HIg may then be used in conjunction with downhole NMR measurements to find corrected gas porosities at locations of the formation.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: August 1, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Ravinath Kausik Kadayam Viswanathan, Chanh Cao Minh, Ridvan Akkurt, Baarinadh Vissapragada, Yi-Qiao Song, Lukasz Zielinski
  • Publication number: 20160266275
    Abstract: Techniques for quantifying minerals in a formation sample include using a joint inversion of DRIFTS (diffuse reflectance infrared Fourier transform spectroscopy) spectra and XRF (X-ray fluorescence) data. This joint inversion produces quantification of additional minerals (e.g. pyrite and barite) than those quantified by the individual inversion method (DRIFTS-only). The method is applied to oilfield reservoir samples and the mineralogy solution is compared to the DRIFTS-only solution and to mineralogy estimated from benchmark FTIR (transmission Fourier transform infrared spectroscopy) method.
    Type: Application
    Filed: March 7, 2016
    Publication date: September 15, 2016
    Inventors: Ridvan Akkurt, Se Un Park, Paul Ryan Craddock
  • Publication number: 20160194551
    Abstract: Treatment methods and treatment fluids for increasing permeability of organic shale formations are described herein. The treatment method includes treating an organic shale formation with a treatment fluid. The treatment fluid includes a solvent that dissolves bitumen in the shale formation. After treating the shale formation with the treatment fluid, oil is recovered from the shale formation. By removing bitumen from pores and pore throats within the formation, the solvent increases permeability of the formation and allows mobile oil to flow more easily through the formation.
    Type: Application
    Filed: August 7, 2014
    Publication date: July 7, 2016
    Inventors: George WATERS, Richard LEWIS, Erik RYLANDER, Andrew E. POMERANTZ, Ridvan AKKURT, Roderick BOVEE, Syed A. ALI
  • Patent number: 9329122
    Abstract: The subject disclosure relates to the evaluation of lithology, mineralogy and organic content of earth materials. More particularly, the subject disclosure relates to evaluating lithology, mineralogy and organic content of earth materials using diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS).
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: May 3, 2016
    Assignee: Schlumberger Technology Corporation
    Inventors: Michael M. Herron, Susan Herron, Alyssa Charsky, Ridvan Akkurt
  • Publication number: 20150240633
    Abstract: Embodiments herein relate to a method for recovering hydrocarbons from a formation including collecting and analyzing a formation sample, drilling operation data, and wellbore pressure measurement, estimating a reservoir and completion quality, and performing an oil field service in a region of the formation comprising the quality. In some embodiments, the formation sample is a solid collected from the drilling operation or includes cuttings or a core sample.
    Type: Application
    Filed: February 6, 2015
    Publication date: August 27, 2015
    Inventors: Ridvan Akkurt, Romain Charles Andre Prioul, Andrew E. Pomerantz