Patents by Inventor Andrew Granja Shepherd

Andrew Granja Shepherd 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).

  • Composition for enhanced hydrocarbon recovery from a formation
    Patent number: 9732267
    Abstract: A hydrocarbon recovery composition which comprises a first blend of C24-28 internal olefin sulfonates and an injectable fluid composition comprising the hydrocarbon recovery composition, water and/or brine wherein the hydrocarbon recovery composition is present in an amount of from 0.05 to 1.0 wt % of the total injectable fluid composition can be used for enhanced hydrocarbon recovery from a formation.
    Type: Grant
    Filed: October 13, 2015
    Date of Patent: August 15, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Julian Richard Barnes, Marten Adriaan Buijse, Marinus Cornelis Hendrikus Grutters, Robert Moene, Reinaldo Conrado Navarrete, Thomas Carl Semple, Andrew Granja Shepherd
  • COMPOSITION FOR ENHANCED HYDROCARBON RECOVERY FROM A FORMATION
    Publication number: 20160032171
    Abstract: A hydrocarbon recovery composition which comprises a first blend of C24-28 internal olefin sulfonates and an injectable fluid composition comprising the hydrocarbon recovery composition, water and/or brine wherein the hydrocarbon recovery composition is present in an amount of from 0.05 to 1.0 wt % of the total injectable fluid composition can be used for enhanced hydrocarbon recovery from a formation.
    Type: Application
    Filed: October 13, 2015
    Publication date: February 4, 2016
    Inventors: Julian Richard BARNES, Marten Adriaan BUIJSE, Marinus Cornelis Hendrikus GRUTTERS, Robert MOENE, Reinaldo Conrado NAVARRETE, Thomas Carl SEMPLE, Andrew Granja SHEPHERD
  • Method and composition for enhanced hydrocarbon recovery from a formation containing a crude oil with specific solubility groups and chemical families
    Patent number: 9187688
    Abstract: A method of treating a formation containing crude oil with specific solubility groups and chemical families is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a formation containing crude oil with specific solubility groups and chemical families, wherein the composition comprises a C24-28 internal olefin sulfonate; and (b) allowing the composition to interact with hydrocarbons in the crude oil containing formation.
    Type: Grant
    Filed: July 6, 2010
    Date of Patent: November 17, 2015
    Assignee: Shell Oil Company
    Inventors: Julian Richard Barnes, Marten Adriaan Buijse, Marinus Cornelis Grutters, Robert Moene, Reinaldo Conrado Navarrete, Thomas Carl Semple, Andrew Granja Shepherd
  • METHOD AND COMPOSITION FOR ENHANCED HYDROCARBON RECOVERY FROM A FORMATION CONTAINING A CRUDE OIL WITH SPECIFIC SOLUBILITY GROUPS AND CHEMICAL FAMILIES
    Publication number: 20120160487
    Abstract: A method of treating a formation containing crude oil with specific solubility groups and chemical families is described. The method includes (a) providing a hydrocarbon recovery composition to at least a portion of a formation containing crude oil with specific solubility groups and chemical families, wherein the composition comprises a C24-28 internal olefin sulfonate; and (b) allowing the composition to interact with hydrocarbons in the crude oil containing formation.
    Type: Application
    Filed: July 6, 2010
    Publication date: June 28, 2012
    Applicant: Shell Oil Company
    Inventors: Julian Richard Barnes, Marten Adriaan Buijse, Marinus Cornelis Grutters, Robert Moene, Reinaldo Conrado Navarrette, Thomas Carl Semple, Andrew Granja Shepherd