Patents by Inventor Subodh Gupta

Subodh Gupta 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: 11820945
    Abstract: Disclosed herein are methods of preparing bitumen for transport, apparatus for preparing bitumen for transport, methods of transporting bitumen, and transportation-ready forms of bitumen. Instead of relying on exogenous components to induce bitumen solidification, the methods and apparatus of the present disclosure reorganize bituminous materials derived from the same origin into core-shell bitumen microcapsules, such that relatively low solubility components (e.g. asphaltenes) encapsulate relatively high solubility components (e.g. maltenes). Importantly, the bitumen microcapsules of the present disclosure are sufficiently mechanically resilient to meet one or more thresholds for midstream transportation, and they are readily fluidized for downstream processing with conventional technologies. Taken together, these aspects may ameliorate one or more challenges in achieving commercially viable bitumen solidification technologies.
    Type: Grant
    Filed: November 3, 2021
    Date of Patent: November 21, 2023
    Inventors: Subodh Gupta, Anita, Sarbajit Banerjee, Wasif Zaheer
  • Publication number: 20220332354
    Abstract: A vessel for transporting a material that is solid or semi-solid at ambient temperature, includes a body having an interior surface comprising textured metal, and a superoleophobic coating on the interior surface for inhibiting the material from adhering to the interior surface, the superoleophobic coating including a nanotextured coating disposed on the textured metal and functionalized with a fluorinated compound. The superoleophobic coating facilitates flow of the material along the interior surface.
    Type: Application
    Filed: May 6, 2022
    Publication date: October 20, 2022
    Inventors: Subodh GUPTA, Michael N. HOLMES, Jennifer D. WOOD, Sarbajit BANERJEE, Robert V. DENNIS-PELCHER, Lacey DOUGLAS, Thomas E. O'LOUGHLIN
  • Patent number: 11358616
    Abstract: A vessel for transporting a material that is solid or semi-solid at ambient temperature, includes a body having an interior surface comprising textured metal, and a superoleophobic coating on the interior surface for inhibiting the material from adhering to the interior surface, the superoleophobic coating including a nanotextured coating disposed on the textured metal and functionalized with a fluorinated compound. The superoleophobic coating facilitates flow of the material along the interior surface.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: June 14, 2022
    Assignee: FCCL Partnership
    Inventors: Subodh Gupta, Michael N. Holmes, Jennifer D. Wood, Sarbajit Banerjee, Robert V. Dennis-Pelcher, Lacey Douglas, Thomas E. O'Loughlin
  • Publication number: 20220135885
    Abstract: Disclosed herein are methods of preparing bitumen for transport, apparatus for preparing bitumen for transport, methods of transporting bitumen, and transportation-ready forms of bitumen. Instead of relying on exogenous components to induce bitumen solidification, the methods and apparatus of the present disclosure reorganize bituminous materials derived from the same origin into core-shell bitumen microcapsules, such that relatively low solubility components (e.g. asphaltenes) encapsulate relatively high solubility components (e.g. maltenes). Importantly, the bitumen microcapsules of the present disclosure are sufficiently mechanically resilient to meet one or more thresholds for midstream transportation, and they are readily fluidized for downstream processing with conventional technologies. Taken together, these aspects may ameliorate one or more challenges in achieving commercially viable bitumen solidification technologies.
    Type: Application
    Filed: November 3, 2021
    Publication date: May 5, 2022
    Inventors: Subodh GUPTA, ANITA, Sarbajit BANERJEE, Wasif ZAHEER
  • Patent number: 11041124
    Abstract: Methods, processes, and apparatuses for preparing and transporting bitumen. Bitumen may be prilled such that a bitumen product comprising a prill core and a non-stick coating is produced. The non-stick coating may comprise asphaltenes and the prill core may comprise bitumen, deasphalted oil, or both bitumen and deasphalted oil. The resultant non-stick coated prills have reduced adhesion to transportation vessels and other non-stick coated prills at a temperature below an adhesion temperature, facilitating transport.
    Type: Grant
    Filed: September 19, 2018
    Date of Patent: June 22, 2021
    Assignee: Cenovus Energy Inc.
    Inventors: Subodh Gupta, Michael N. Holmes, Eric A. MacDonald, Jennifer D. Wood
  • Patent number: 10793786
    Abstract: Methods for preparing, converting, and/or transporting bitumen are provided. Asphaltene prills, prilling processes, and converted bitumen suitable for transport are disclosed. One method for preparing bitumen for transport comprises: separating asphaltene from the bitumen to generate a deasphalted oil and asphaltene; separating the asphaltene into a first asphaltene fraction and a second asphaltene fraction, the first asphaltene fraction being less soluble in deasphalted oil and the second asphaltene fraction being more soluble in deasphalted oil; and forming an asphaltene prill comprising an inner core comprising the second asphaltene fraction and an outer layer comprising the first asphaltene fraction. Asphaltene prills disclosed herein may comprise an inner core comprising an asphaltene fraction having more solubility in deasphalted oil, and an outer layer comprising an asphaltene fraction having less solubility in deasphalted oil. Methods for the transport of bitumen via a pipeline are disclosed.
    Type: Grant
    Filed: December 13, 2018
    Date of Patent: October 6, 2020
    Assignee: Cenovus Energy Inc.
    Inventor: Subodh Gupta
  • Publication number: 20190119582
    Abstract: Methods for preparing, converting, and/or transporting bitumen are provided. Asphaltene prills, prilling processes, and converted bitumen suitable for transport are disclosed. One method for preparing bitumen for transport comprises: separating asphaltene from the bitumen to generate a deasphalted oil and asphaltene; separating the asphaltene into a first asphaltene fraction and a second asphaltene fraction, the first asphaltene fraction being less soluble in deasphalted oil and the second asphaltene fraction being more soluble in deasphalted oil; and forming an asphaltene prill comprising an inner core comprising the second asphaltene fraction and an outer layer comprising the first asphaltene fraction. Asphaltene prills disclosed herein may comprise an inner core comprising an asphaltene fraction having more solubility in deasphalted oil, and an outer layer comprising an asphaltene fraction having less solubility in deasphalted oil. Methods for the transport of bitumen via a pipeline are disclosed.
    Type: Application
    Filed: December 13, 2018
    Publication date: April 25, 2019
    Inventor: Subodh Gupta
  • Patent number: 10190062
    Abstract: Methods for preparing, converting, and/or transporting bitumen are provided. Asphaltene prills, prilling processes, and converted bitumen suitable for transport are disclosed. One method for preparing bitumen for transport comprises: separating asphaltene from the bitumen to generate a deasphalted oil and asphaltene; separating the asphaltene into a first asphaltene fraction and a second asphaltene fraction, the first asphaltene fraction being less soluble in deasphalted oil and the second asphaltene fraction being more soluble in deasphalted oil; and forming an asphaltene prill comprising an inner core comprising the second asphaltene fraction and an outer layer comprising the first asphaltene fraction. Asphaltene prills disclosed herein may comprise an inner core comprising an asphaltene fraction having more solubility in deasphalted oil, and an outer layer comprising an asphaltene fraction having less solubility in deasphalted oil. Methods for the transport of bitumen via a pipeline are disclosed.
    Type: Grant
    Filed: June 30, 2016
    Date of Patent: January 29, 2019
    Assignee: CENOVUS ENERGY INC.
    Inventor: Subodh Gupta
  • Publication number: 20190016962
    Abstract: Methods, processes, and apparatuses for preparing and transporting bitumen. Bitumen may be prilled such that a bitumen product comprising a prill core and a non-stick coating is produced. The non-stick coating may comprise asphaltenes and the prill core may comprise bitumen, deasphalted oil, or both bitumen and deasphalted oil. The resultant non-stick coated prills have reduced adhesion to transportation vessels and other non-stick coated prills at a temperature below an adhesion temperature, facilitating transport.
    Type: Application
    Filed: September 19, 2018
    Publication date: January 17, 2019
    Inventors: Subodh GUPTA, Michael N. HOLMES, Eric A. MACDONALD, Jennifer D. WOOD
  • Patent number: 10106745
    Abstract: Methods, processes, and apparatuses for preparing and transporting bitumen. Bitumen may be prilled such that a bitumen product comprising a prill core and a non-stick coating is produced. The non-stick coating may comprise asphaltenes and the prill core may comprise bitumen, deasphalted oil, or both bitumen and deasphalted oil. The resultant non-stick coated prills have reduced adhesion to transportation vessels and other non-stick coated prills at a temperature below an adhesion temperature, facilitating transport.
    Type: Grant
    Filed: October 25, 2016
    Date of Patent: October 23, 2018
    Assignee: Cenovus Energy Inc.
    Inventors: Subodh Gupta, Michael N. Holmes, Eric A. MacDonald, Jennifer D. Wood
  • Publication number: 20180186388
    Abstract: A vessel for transporting a material that is solid or semi-solid at ambient temperature, includes a body having an interior surface comprising textured metal, and a superoleophobic coating on the interior surface for inhibiting the material from adhering to the interior surface, the superoleophobic coating including a nanotextured coating disposed on the textured metal and functionalized with a fluorinated compound. The superoleophobic coating facilitates flow of the material along the interior surface.
    Type: Application
    Filed: November 8, 2017
    Publication date: July 5, 2018
    Inventors: Subodh GUPTA, Michael N. HOLMES, Jennifer D. WOOD, Sarbajit BANERJEE, Robert V. DENNIS, Lacey DOUGLAS, Thomas E. O'LOUGHLIN
  • Publication number: 20170182431
    Abstract: A process for recovering water from an emulsion produced from a hydrocarbon production operation. The process includes heating the emulsion to generate water vapor, separating the water vapor from oil in the emulsion, compressing the water vapor separated from the oil, thereby increasing pressure to provide condensate, wherein heat generated from compression of the water vapor to provide condensate is utilized to provide heat for heating the emulsion, and separating at least one of remaining oil, gas, or water from the condensate.
    Type: Application
    Filed: December 28, 2016
    Publication date: June 29, 2017
    Inventors: Subodh GUPTA, Michael N. HOLMES, Michael Patrick MCKAY, Suchang REN, Susan Wei SUN
  • Publication number: 20170114281
    Abstract: Methods, processes, and apparatuses for preparing and transporting bitumen. Bitumen may be prilled such that a bitumen product comprising a prill core and a non-stick coating is produced. The non-stick coating may comprise asphaltenes and the prill core may comprise bitumen, deasphalted oil, or both bitumen and deasphalted oil. The resultant non-stick coated prills have reduced adhesion to transportation vessels and other non-stick coated prills at a temperature below an adhesion temperature, facilitating transport.
    Type: Application
    Filed: October 25, 2016
    Publication date: April 27, 2017
    Inventors: Subodh GUPTA, Michael N. HOLMES, Eric A. MACDONALD, Jennifer D. WOOD
  • Publication number: 20170002275
    Abstract: Methods for preparing, converting, and/or transporting bitumen are provided. Asphaltene prills, prilling processes, and converted bitumen suitable for transport are disclosed. One method for preparing bitumen for transport comprises: separating asphaltene from the bitumen to generate a deasphalted oil and asphaltene; separating the asphaltene into a first asphaltene fraction and a second asphaltene fraction, the first asphaltene fraction being less soluble in deasphalted oil and the second asphaltene fraction being more soluble in deasphalted oil; and forming an asphaltene prill comprising an inner core comprising the second asphaltene fraction and an outer layer comprising the first asphaltene fraction. Asphaltene prills disclosed herein may comprise an inner core comprising an asphaltene fraction having more solubility in deasphalted oil, and an outer layer comprising an asphaltene fraction having less solubility in deasphalted oil. Methods for the transport of bitumen via a pipeline are disclosed.
    Type: Application
    Filed: June 30, 2016
    Publication date: January 5, 2017
    Inventor: Subodh Gupta
  • Patent number: 9284827
    Abstract: A process for hydrocarbon recovery performs a steam assisted gravity drainage (SAGD) operation by injecting steam in a steam injection well of a SAGD well pair and continuing to inject steam to establish fluid communication between the steam injection well and an oxidizing gas injection well that includes an oxidizing gas injection well segment that is spaced generally above the steam injection well segment, and producing hydrocarbons from a hydrocarbon production well of the SAGD well pair, the hydrocarbon production well including a generally horizontal production well segment disposed generally parallel to and vertically below a generally horizontal steam injection well segment of the steam injection well such that the steam injection well segment is disposed generally vertically between the production well segment and the oxidizing gas injection well segment.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: March 15, 2016
    Assignee: Cenovus Energy Inc.
    Inventors: Christian Canas, Simon Gittins, Subodh Gupta, Arun Sood, Xinjie Wu
  • Publication number: 20150308246
    Abstract: A process for hydrocarbon recovery from a hydrocarbon-bearing formation utilizing an injection well for the injection of a mobilizing and displacing fluid, such as steam, into the formation and a production well, spaced from the injection well, and through which hydrocarbon is recovered. The process includes injecting a surfactant and a gas into the production well for a first period of time to thereby emplace or form foam to an extent sufficient to modify the path of flow in an inter-well region between the injection well and the production well and in an area spaced from the inter-well region of the reservoir, which area is in fluid communication with at least one of the injection well and the production well. The process also includes injecting fluid into the injection well to cause the flow of hydrocarbon in the formation and recovering the hydrocarbon through the production well.
    Type: Application
    Filed: April 28, 2015
    Publication date: October 29, 2015
    Inventors: Sam Chen, Subodh Gupta, Alvin Winestock
  • Publication number: 20150144345
    Abstract: Described herein is a method of producing heated water from a hydrocarbon reservoir. The method includes injecting water into at least a portion of the hot bitumen-depleted zone to heat the water; and producing the heated water from a heated water production well. The method can includes generating the hot bitumen-depleted zone using steam-assisted gravity drainage, in situ combustion, steam flooding, cyclic steam stimulation, a solvent aided thermal recovery process, electric heating, electromagnetic heating, or any combination thereof.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 28, 2015
    Inventors: Mark Bilozir, Christian CANAS, Subodh GUPTA, Arun SOOD
  • Publication number: 20150101794
    Abstract: An apparatus is disclosed for use in a hydrocarbon production well that includes a casing extending from a segment of the production well to a wellhead. A production conduit extends inside the casing, from a first end in the hydrocarbon production well to a second end at the wellhead. A receptacle includes a bottom spaced from the first end of the production conduit and at least one sidewall extending around a portion of the production conduit proximal the first end such that the receptacle extends around the first end of the production conduit. The receptacle includes an opening for liquid to pass into the receptacle to separate liquids from gases. A submersible pump is disposed in the production well and includes a motor outside the receptacle and coupled to a pump body inside the receptacle to pump the liquid from a pump inlet in the receptacle, through the production conduit to the second end.
    Type: Application
    Filed: October 13, 2014
    Publication date: April 16, 2015
    Inventors: Christian Canas, Subodh Gupta, Simon Gittins
  • Publication number: 20140345859
    Abstract: A process for hydrocarbon recovery from an oil sands deposit includes injecting an oxidizing gas into an oil sands reservoir through an injection well. The oxidizing gas supports in situ combustion (ISC) in the reservoir. A generally horizontal well pair is used that is in fluid communication with the injection well to recover hydrocarbons mobilized by the ISC. The well pair includes: a generally horizontal segment of a hydrocarbon production well, and a generally horizontal segment of a combustion gas production well. The generally horizontal segment of the combustion gas production well is generally parallel to and spaced vertically above the horizontal segment of the hydrocarbon production well. The segment of the oxidizing gas injection well is spaced generally above the segment of the hydrocarbon production well and generally above the segment of the combustion gas production well.
    Type: Application
    Filed: May 21, 2014
    Publication date: November 27, 2014
    Inventors: Christian CANAS, Simon GITTINS, Subodh GUPTA, Arun SOOD, Xinjie WU
  • Patent number: 8844639
    Abstract: An integrated thermal recovery process using a solvent of a pentane or hexane or both as an additive to, or sole component of, a gravity-dominated process for recovering bitumen or heavy oil from a reservoir. A pentane-hexane specific solvent fraction is extracted at surface from a diluent stream. That pentane-hexane solvent fraction is then injected into the reservoir as part of a gravity-dominated recovery process within the reservoir, and when that solvent fraction is subsequently produced as part of the oil or bitumen blend, it is allowed to remain within the blend to enhance the subsequent blend treating and transportation steps. Meanwhile, the remainder of the diluent from which the solvent stream had been extracted is utilized at surface as a blending stream to serve as an aid in treating of produced fluids and also to serve as a means of rendering the bitumen or heavy oil stream pipelineable.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: September 30, 2014
    Assignee: FCCL Partnership
    Inventors: Subodh Gupta, Simon D. Gittins, Mark A. Bilozir