Patents by Inventor Aaron W. Sanders

Aaron W. Sanders 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: 10414971
    Abstract: Embodiments of the present disclosure include modified nonionic surfactant formulations having a nonionic surfactant and a pour point depressant, where the modified nonionic surfactant formulations have a pour point of ?54° C. to ?75° C. In one or more embodiments, the modified nonionic surfactant formulations can be introduced into a flow of carbon dioxide, where the flow of carbon dioxide and the modified nonionic surfactant formulation are injected into an oil containing reservoir. In one or more embodiments, an emulsion of the carbon dioxide and the nonionic surfactant form in the oil containing reservoir, where the use of the pour point depressant provides minimal interference in forming the emulsion.
    Type: Grant
    Filed: September 28, 2016
    Date of Patent: September 17, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Troy Knight, Pramod D. Patil, Brenna White, Susan K. Falcone-Potts, Martha Hernandez
  • Patent number: 10336935
    Abstract: This invention relates to a foam-forming composition having good low temperature stability and method of use thereof for enhanced oil recovery. Said foam-forming composition comprises an anionic sulfonate surfactant, preferably an alpha-olefin sulfonate, a alkyl ether solvent, and water and is preferably stable to at least ?5 C. A preferred alkyl ether solvent has the formula C8H18O3, C8H16O3, or mixtures thereof. Preferred alpha-olefin sulfonate have 10 to 18 carbons, preferably 12 carbons. A preferred method for recovering oil from a reservoir comprises the periodic injection of gas and said foam-forming composition into the reservoir and contacting the oil in the reservoir with the foam so as to assist in the recovery of oil from the reservoir.
    Type: Grant
    Filed: May 22, 2014
    Date of Patent: July 2, 2019
    Assignee: Dow Global Technologies LLC
    Inventors: David L. Frattarelli, Sayeed Abbas, Troy E. Knight, Aaron W. Sanders, Christopher J. Tucker, Caroline Woelfle-Gupta
  • Patent number: 10240079
    Abstract: Embodiments of the present disclosure include suspensions for use in enhanced oil recovery, and methods of using the suspensions for recovering oil. Suspensions of the present disclosure include a nonionic surfactant that can dissolve in supercritical carbon dioxide, and a metal salt having a concentration of 200 to 1 parts-per-million.
    Type: Grant
    Filed: March 3, 2017
    Date of Patent: March 26, 2019
    Assignee: Dow Global Technologies LLC
    Inventor: Aaron W. Sanders
  • Publication number: 20180305389
    Abstract: Prepare a branched alcohol-based sugar surfactant by: (a) providing an ether alcohol and a fully acetylated sugar where the ether alcohol has the structure of Structure (I); (b) coupling the ether alcohol with the acetylated sugar in the presence of a Lewis acid catalyst to form a branched glucoside acetate; and (c) deprotecting the glucoside acetate by removing the acetate moieties and replacing them with hydrogen atoms in the presence of a base to form a surfactant having the structure (II).
    Type: Application
    Filed: September 7, 2016
    Publication date: October 25, 2018
    Applicant: Dow Global Technologies LLC
    Inventors: Troy E. Knight, Nermeen W. Aboelella, Sayeed Abbas, Aaron W. Sanders
  • Patent number: 9874079
    Abstract: The present disclosure provides methods of using a nonionic surfactant for enhanced oil recovery, where the nonionic surfactant is prepared with a double metal cyanide catalyst. The present disclosure also provides for an emulsion that includes carbon dioxide, a diluent and the nonionic surfactant.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: January 23, 2018
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Sayeed Abbas, Shawn Maynard, Matthew Miller
  • Patent number: 9850421
    Abstract: The present disclosure includes a nonionic surfactant and a method of providing the nonionic surfactant, where the nonionic surfactant is soluble in carbon dioxide and is used as part of a dispersion for enhanced crude oil recovery. The nonionic surfactant can be part of an emulsion that includes carbon dioxide and a diluent.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: December 26, 2017
    Assignee: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Debashis Chakraborty
  • Publication number: 20170174979
    Abstract: Embodiments of the present disclosure include suspensions for use in enhanced oil recovery, and methods of using the suspensions for recovering oil. Suspensions of the present disclosure include a nonionic surfactant that can dissolve in supercritical carbon dioxide, and a metal salt having a concentration of 200 to 1 parts-per-million.
    Type: Application
    Filed: March 3, 2017
    Publication date: June 22, 2017
    Applicant: Dow Global Technologies LLC
    Inventor: Aaron W. Sanders
  • Patent number: 9587788
    Abstract: Embodiments of the present disclosure include suspensions for use in enhanced oil recovery, and methods of using the suspensions for recovering oil. Suspensions of the present disclosure include a nonionic surfactant that can dissolve in supercritical carbon dioxide, and a metal salt having a concentration of 200 to 1 parts-per-million.
    Type: Grant
    Filed: June 3, 2011
    Date of Patent: March 7, 2017
    Assignee: Dow Global Technologies LLC
    Inventor: Aaron W. Sanders
  • Publication number: 20170044422
    Abstract: Embodiments of the present disclosure include modified nonionic surfactant formulations having a nonionic surfactant and a pour point depressant, where the modified nonionic surfactant formulations have a pour point of ?54° C. to ?75° C. In one or more embodiments, the modified nonionic surfactant formulations can be introduced into a flow of carbon dioxide, where the flow of carbon dioxide and the modified nonionic surfactant formulation are injected into an oil containing reservoir. In one or more embodiments, an emulsion of the carbon dioxide and the nonionic surfactant form in the oil containing reservoir, where the use of the pour point depressant provides minimal interference in forming the emulsion.
    Type: Application
    Filed: September 28, 2016
    Publication date: February 16, 2017
    Applicant: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Aaron W. Sanders, Troy Knight, Pramod D. Patil, Brenna White, Susan K. Falcone-Potts, Martha Hernandez
  • Patent number: 9458707
    Abstract: A method of enhancing oil recovery by providing a mobile surfactant injection system including a storage tank, means for injecting surfactant into a supercritical CO2 stream, and a feedback control for maintaining a constant concentration of surfactant in a gas stream, the method including the steps of creating a fluid comprising the surfactant and the injection gas, and injecting the fluid into the oil field strata.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 4, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Terry A. Mann
  • Publication number: 20160237798
    Abstract: The present disclosure provides methods of using a nonionic surfactant for enhanced oil recovery, where the nonionic surfactant is prepared with a double metal cyanide catalyst. The present disclosure also provides for an emulsion that includes carbon dioxide, a diluent and the nonionic surfactant.
    Type: Application
    Filed: April 22, 2016
    Publication date: August 18, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Sayeed Abbas, Shawn Maynard, Matthew Miller
  • Patent number: 9340724
    Abstract: The present disclosure provides methods of using a nonionic surfactant for enhanced oil recovery, where the nonionic surfactant is prepared with a double metal cyanide catalyst. The present disclosure also provides for an emulsion that includes carbon dioxide, a diluent and the nonionic surfactant.
    Type: Grant
    Filed: September 20, 2012
    Date of Patent: May 17, 2016
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Sayeed Abbas, Shawn Maynard, Matthew Miller
  • Publication number: 20160083643
    Abstract: This invention relates to a foam-forming composition and method of use thereof for enhanced oil recovery. Said foam-forming composition comprises an anionic sulfonate surfactant wherein the anionic sulfonate surfactant is biodegradable and has low aquatic toxicity. The method for recovering oil from a reservoir comprises the periodic injection of gas and said foam-forming composition into the reservoir and contacting the oil in the reservoir with the foam so as to assist in the recovery of oil from the reservoir.
    Type: Application
    Filed: May 22, 2014
    Publication date: March 24, 2016
    Applicant: Dow Global Technologies LLC
    Inventors: Nermeen W. Aboelella, Sayeed Abbas, Michael K. Poindexter, Aaron W. Sanders
  • Publication number: 20160083642
    Abstract: This invention relates to a foam-forming composition having good low temperature stability and method of use thereof for enhanced oil recovery. Said foam-forming composition comprises an anionic sulfonate surfactant, preferably an alpha-olefin sulfonate, a alkyl ether solvent, and water and is preferably stable to at least ?5C. A preferred alkyl ether solvent has the formula C8H18O3, C8H16O3, or mixtures thereof. Preferred alpha-olefin sulfonate have 10 to 18 carbons, preferably 12 carbons. A preferred method for recovering oil from a reservoir comprises the periodic injection of gas and said foam-forming composition into the reservoir and contacting the oil in the reservoir with the foam so as to assist in the recovery of oil from the reservoir.
    Type: Application
    Filed: May 22, 2014
    Publication date: March 24, 2016
    Inventors: David L. Frattarelli, Sayeed Abbas, Troy E. Knight, Aaron W. Sanders, Christopher J. Tucker, Caroline Woelfle-Gupta
  • Publication number: 20150252149
    Abstract: The present invention provides processes for making higher molecular weight, functionalized poly(meth)acrylamide polymer products. As an overview, the processes use (trans)amidation techniques in the melt phase to react one or more high molecular weight amide functional polymers or copolymers with at least one co-reactive species comprising at least one labile amine moiety and at least one additional functionality other than amine functionality. In practical effect, the processes of the present invention thus incorporate one or more additional functionalities onto an already formed or partially formed polymer rather than trying to incorporate all functionality via copolymerization techniques as the polymer is formed from constituent monomers. The methods provide an easy way to provide functionalized, high molecular weight poly(meth)acrylamide polymer products.
    Type: Application
    Filed: September 19, 2013
    Publication date: September 10, 2015
    Inventors: Chunming Zhang, Nan-Rong Chiou, Sayeed Abbas, XiaoHua S. Qiu, Michael D, Read, Aaron W. Sanders
  • Publication number: 20150136397
    Abstract: Embodiments of the present disclosure are directed towards oil recovery compositions. As an example, an oil recovery composition can include a dimeric non-ionic surfactant and carbon dioxide.
    Type: Application
    Filed: May 31, 2013
    Publication date: May 21, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Sayeed Abbas, Paul R. Elowe, Aaron W. Sanders, Susan K. Falcone-Potts
  • Patent number: 8973668
    Abstract: Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: March 10, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor
  • Publication number: 20150000909
    Abstract: Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
    Type: Application
    Filed: September 5, 2014
    Publication date: January 1, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor
  • Patent number: 8857527
    Abstract: Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: October 14, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Ed G. Rightor, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen
  • Publication number: 20140251607
    Abstract: The present disclosure provides methods of using a nonionic surfactant for enhanced oil recovery, where the nonionic surfactant is prepared with a double metal cyanide catalyst. The present disclosure also provides for an emulsion that includes carbon dioxide, a diluent and the nonionic surfactant.
    Type: Application
    Filed: September 20, 2012
    Publication date: September 11, 2014
    Applicant: DOW Global Technologies LLC
    Inventors: Aaron W. Sanders, Sayeed Abbas, Shawn Maynard, Matthew Miller