Patents by Inventor Kamal Kader

Kamal Kader 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).

  • Patent number: 11768191
    Abstract: Embodiments of the disclosure can include systems, methods, and devices for determining saturation pressure of an uncontaminated fluid. A technique facilitates fluid analysis in situ at a downhole location. Downhole saturation pressure measurements and downhole OBM filtrate contamination of a contaminated fluid may be obtained and a relationship may be determined between the saturation pressure measurements and OBM filtrate contamination. The relationship may be extrapolated to zero OBM filtrate contamination to determine the saturation pressure of the uncontaminated fluid. According to an embodiment, a sample of oil is obtained at the downhole location from oil in a reservoir. A downhole sampling system is used to determine whether a sample has contamination and other selected characteristics of the sample. The data obtained may be processed to provide a formation volume factor of the oil.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: September 26, 2023
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Younes Jalali, Ryota Tonoue, Hua Chen, Christopher Harrison, Kamal Kader, Youxiang Zuo, Adriaan Gisolf, Cosan Ayan, Michael Mallari Toribio, Chetankumar Natwarlal Desai, Oliver Clinton Mullins, Matthew T. Sullivan, Elizabeth Smythe
  • Patent number: 11725942
    Abstract: A photonic integrated chip is configured as a transmitter-receiver chip. The photonic integrated chip includes a light emitter, a light detector, a multi-mode interference coupler, and a mode-filed adapter. The light emitted by the light emitter is guided to a core layer formed below the multi-mode interference coupler, and further to the mode-filed adapter for transmission of light to an optical fiber coupled with the photonic integrated chip. Similarly, light received by the mode-filed adapter from the optical fiber propagates to the core layer, and is guided by the multi-mode interference coupler into the light detector. The photonic integrated chip is utilized to realize a single-unit transmitter-receiver module for a fiber optic gyroscope circuit based on monolithic integration of photonics components via wafer fabrication on a substrate. The photonic integrated chip has a low fabrication cost, low size, and is robust.
    Type: Grant
    Filed: December 16, 2021
    Date of Patent: August 15, 2023
    Assignee: DENSELIGHT SEMICONDUCTORS PTE LTD
    Inventors: Yee Loy Lam, Ter Hoe Loh, Kamal Kader, Long Cheng Koh
  • Publication number: 20220329045
    Abstract: A laser module includes a gain chip, temperature sensors, a case, and a thermoelectric cooler (TEC). The gain chip emits a laser beam. One of the temperature sensors measures a first temperature of the gain chip and is encompassed by the gain chip. The other temperature sensor is adhered to the case and measures a second temperature. The TEC tunes the laser beam emitted by the gain chip to a desired wavelength by varying the first temperature of the gain chip through a set of third temperatures for various values of the second temperature. The set of third temperatures is selected from various values of the first temperature such that the laser beam emitted at the set of third temperatures is mode-hop free.
    Type: Application
    Filed: March 24, 2022
    Publication date: October 13, 2022
    Applicant: DENSELIGHT SEMICONDUCTORS PTE LTD
    Inventors: Kamal Kader, Long Cheng Koh, Andy Piper, Yee Loy Lam
  • Publication number: 20220187074
    Abstract: A photonic integrated chip is configured as a transmitter-receiver chip. The photonic integrated chip includes a light emitter, a light detector, a multi-mode interference coupler, and a mode-filed adapter. The light emitted by the light emitter is guided to a core layer formed below the multi-mode interference coupler, and further to the mode-filed adapter for transmission of light to an optical fiber coupled with the photonic integrated chip. Similarly, light received by the mode-filed adapter from the optical fiber propagates to the core layer, and is guided by the multi-mode interference coupler into the light detector. The photonic integrated chip is utilized to realize a single-unit transmitter-receiver module for a fiber optic gyroscope circuit based on monolithic integration of photonics components via wafer fabrication on a substrate. The photonic integrated chip has a low fabrication cost, low size, and is robust.
    Type: Application
    Filed: December 16, 2021
    Publication date: June 16, 2022
    Applicant: DENSELIGHT SEMICONDUCTORS PTE LTD
    Inventors: Yee Loy Lam, Ter Hoe Loh, Kamal Kader, Long Cheng Koh
  • Publication number: 20210263008
    Abstract: Embodiments of the disclosure can include systems, methods, and devices for determining saturation pressure of an uncontaminated fluid. A technique facilitates fluid analysis in situ at a downhole location. Downhole saturation pressure measurements and downhole OBM filtrate contamination of a contaminated fluid may be obtained and a relationship may be determined between the saturation pressure measurements and OBM filtrate contamination. The relationship may be extrapolated to zero OBM filtrate contamination to determine the saturation pressure of the uncontaminated fluid. According to an embodiment, a sample of oil is obtained at the downhole location from oil in a reservoir. A downhole sampling system is used to determine whether a sample has contamination and other selected characteristics of the sample. The data obtained may be processed to provide a formation volume factor of the oil.
    Type: Application
    Filed: May 13, 2021
    Publication date: August 26, 2021
    Inventors: Younes Jalali, Ryota Tonoue, Hua Chen, Christopher Harrison, Kamal Kader, Youxiang Zuo, Adriaan Gisolf, Cosan Ayan, Michael Mallari Toribio, Chetankumar Natwarlal Desai, Oliver Clinton Mullins, Matthew T. Sullivan, Elizabeth Smythe
  • Publication number: 20190145242
    Abstract: A technique facilitates fluid analysis in situ at a downhole location. According to an embodiment, a sample of oil is obtained at the downhole location from oil in a reservoir. A downhole sampling system is used to determine contamination of the sample and to determine other selected characteristics of the sample. The data obtained is then processed to provide a formation volume factor of the oil. The testing may be performed at selected stations along the borehole to facilitate rapid development of a realistic model of fluid distribution and property variation in the reservoir, thus enabling an improved oil recovery strategy.
    Type: Application
    Filed: November 13, 2017
    Publication date: May 16, 2019
    Inventors: Younes Jalali, Ryota Tonoue, Hua Chen, Christopher Harrison, Kamal Kader
  • Patent number: 10073042
    Abstract: A method and apparatus are provided for performing in-situ fluid analysis. The method involves obtaining a first and second mixture of uncontaminated oil and a contaminant, wherein a percentage of the uncontaminated oil in the first mixture is different from the second mixture. The method may further include establishing a rate of change of a physical property of the first mixture and the second mixture to estimate a mass density of the uncontaminated oil and a mass density of the contaminant. In addition, the method may include obtaining a volume fraction of the uncontaminated oil for the first mixture and second mixture using the mass density of the uncontaminated oil and the mass density of the contaminant. An optical device may be used to determine a composition of the first and second mixtures in order to calculate a composition of the contaminant and a composition of the uncontaminated oil.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: September 11, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kang Wang, Younes Jalali, Yoko Morita, Kamal Kader, Yutaka Imasato
  • Patent number: 9534494
    Abstract: Optical window assemblies are provided. An example apparatus includes a first fixture defining a fluid flow passageway. The example apparatus also includes a second fixture defining an aperture. The second fixture is coupled to the first fixture. A first optical window is disposed in the aperture. The first optical window has a first end and a second end. The first end is to be in contact with fluid in the fluid flow passageway, and a cross-sectional size of the first optical window decreases from the first end toward the second end along a portion of the first optical window.
    Type: Grant
    Filed: February 25, 2013
    Date of Patent: January 3, 2017
    Assignee: Schlumberger Technology Corporation
    Inventors: Akira Kamiya, Stephane Vannuffelen, Kamal Kader, Hua Chen, Hisatoshi Matsumoto
  • Publication number: 20160061743
    Abstract: A method and apparatus are provided for performing in-situ fluid analysis. The method involves obtaining a first and second mixture of uncontaminated oil and a contaminant, wherein a percentage of the uncontaminated oil in the first mixture is different from the second mixture. The method may further include establishing a rate of change of a physical property of the first mixture and the second mixture to estimate a mass density of the uncontaminated oil and a mass density of the contaminant. In addition, the method may include obtaining a volume fraction of the uncontaminated oil for the first mixture and second mixture using the mass density of the uncontaminated oil and the mass density of the contaminant. An optical device may be used to determine a composition of the first and second mixtures in order to calculate a composition of the contaminant and a composition of the uncontaminated oil.
    Type: Application
    Filed: August 27, 2015
    Publication date: March 3, 2016
    Inventors: Kang Wang, Younes Jalali, Yoko Morita, Kamal Kader, Yutaka Imasato
  • Publication number: 20160018245
    Abstract: A system receives data corresponding to light signals in the plurality of cores, the plurality of cores including a first pair of cores spaced apart laterally along a first direction in the optical fiber, and a second pair of cores spaced apart laterally along a second direction in the optical fiber. The system determines a directional measurement of a dynamic parameter based on the data corresponding to light signals in the plurality of cores, wherein directionality of the directional measurement is indicated by a difference between a response of the first pair of cores to a stimulus and a response of the second pair of cores to the stimulus.
    Type: Application
    Filed: July 15, 2015
    Publication date: January 21, 2016
    Inventors: Tsutomu Yamate, Kamal Kader, Soon Seong Chee, Toru Ikegami, Masafumi Fukuhara, Nalin Weerasinghe
  • Patent number: 9170149
    Abstract: A fiber optic sensor system includes an optical source to output a first optical signal to launch into an optical fiber, and a coherent detector to mix a coherent Rayleigh backscatter signal generated by the optical fiber in response to the first optical signal with a second optical signal output by the optical source and to generate a mixed output signal. A phase detection and acquisition system determines a phase difference between first and second locations along the optical fiber based on phase information extracted from the mixed output signal and combines the phase information extracted from multiple acquisitions to detect strain on the optical fiber sensor.
    Type: Grant
    Filed: August 30, 2011
    Date of Patent: October 27, 2015
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur Hartog, Kamal Kader
  • Publication number: 20140240862
    Abstract: Optical window assemblies are disclosed herein. An example apparatus includes a first fixture defining a fluid flow passageway. The example apparatus also includes a second fixture defining an aperture. The second fixture is coupled to the first fixture. A first optical window is disposed in the aperture. The first optical window has a first end and a second end. The first end is to be in contact with fluid in the fluid flow passageway, and a cross-sectional size of the first optical window decreases from the first end toward the second end along a portion of the first optical window.
    Type: Application
    Filed: February 25, 2013
    Publication date: August 28, 2014
    Applicant: Schlumberger Technology Corporation
    Inventors: Akira Kamiya, Stephane Vannuffelen, Kamal Kader, Hua Chen, Hisatoshi Matsumoto
  • Publication number: 20140158429
    Abstract: Present embodiments relate to systems and methods for providing cooling to temperature sensitive components of a downhole tool with an intermittent power supply. To provide one example, a downhole tool may include a temperature sensitive component, an enclosure, a cooling unit, and a heat exchanger. The enclosure may be designed to provide thermal insulation to the temperature sensitive component. The cooling unit may intermittently provide active cooling while the downhole tool is being operated. The heat exchanger may facilitate heat transfer from the temperature sensitive component to the cooling unit when the cooling unit is providing the active cooling. The heat exchanger may also disable heat transfer between the temperature sensitive component and the cooling unit when the cooling unit is not providing the active cooling.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 12, 2014
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Kamal Kader, Mari Yoshida
  • Patent number: 8408064
    Abstract: A distributed acoustic wave detection system and method is provided. The system may include a fiber optic cable deployed in a well and configured to react to pressure changes resulting from a propagating acoustic wave and an optical source configured to launch interrogating pulses into the fiber optic cable. In addition, the system may include a receiver configured to detect coherent Rayleigh noise produced in response to the interrogating pulses. The CRN signal may be use to track the propagation of the acoustic wave in the well.
    Type: Grant
    Filed: November 4, 2009
    Date of Patent: April 2, 2013
    Assignee: Schlumberger Technology Corporation
    Inventors: Arthur H. Hartog, Douglas Miller, Kamal Kader, Gareth P. Lees, Graeme Hilton, Stephen Mullens
  • Publication number: 20120067118
    Abstract: A fiber optic sensor system includes an optical source to output a first optical signal to launch into an optical fiber, and a coherent detector to mix a coherent Rayleigh backscatter signal generated by the optical fiber in response to the first optical signal with a second optical signal output by the optical source and to generate a mixed output signal. A phase detection and acquisition system determines a phase difference between first and second locations along the optical fiber based on phase information extracted from the mixed output signal and combines the phase information extracted from multiple acquisitions to detect strain on the optical fiber sensor.
    Type: Application
    Filed: August 30, 2011
    Publication date: March 22, 2012
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Arthur Hartog, Kamal Kader
  • Publication number: 20100107754
    Abstract: A distributed acoustic wave detection system and method is provided. The system may include a fiber optic cable deployed in a well and configured to react to pressure changes resulting from a propagating acoustic wave and an optical source configured to launch interrogating pulses into the fiber optic cable. In addition, the system may include a receiver configured to detect coherent Rayleigh noise produced in response to the interrogating pulses. The CRN signal may be use to track the propagation of the acoustic wave in the well.
    Type: Application
    Filed: November 4, 2009
    Publication date: May 6, 2010
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Arthur H. Hartog, Douglas Miller, Kamal Kader, Gareth P. Lees, Graeme Hilton, Stephen Mullens
  • Patent number: 7668411
    Abstract: An optical time domain reflectometry (OTDR) system is configured to detect Rayleigh backscatter reflected from a multimode sensing optical fiber. The system includes a single spatial mode filtering system to select a single speckle of the Rayleigh backscatter produced in response to an optical pulse launched into the multimode fiber. The detected single speckle may be used for distributed disturbance (vibration) detection.
    Type: Grant
    Filed: June 6, 2008
    Date of Patent: February 23, 2010
    Assignee: Schlumberger Technology Corporation
    Inventors: Dylan Davies, Arthur H. Hartog, Kamal Kader
  • Publication number: 20090304322
    Abstract: An optical time domain reflectometry (OTDR) system is configured to detect Rayleigh backscatter reflected from a multimode sensing optical fiber. The system includes a single spatial mode filtering system to select a single speckle of the Rayleigh backscatter produced in response to an optical pulse launched into the multimode fiber. The detected single speckle may be used for distributed disturbance (vibration) detection.
    Type: Application
    Filed: June 6, 2008
    Publication date: December 10, 2009
    Applicant: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Dylan Davies, Arthur H. Hartog, Kamal Kader