Patents by Inventor Ha M. Nguyen

Ha M. Nguyen 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).

  • Prevention or mitigation of steel corrosion caused by combustion gas
    Patent number: 8776901
    Abstract: Recovering oil and gas from subterranean oil and gas reservoirs using gas injection can serve an additional purpose of capturing and sequestering carbon dioxide. This can be accomplished where the feed gas for the gas injection is, at least in part, carbon dioxide from a carbon dioxide capture and sequestration process. Corrosion of steel in a gas transportation system due to the presence of carbon dioxide and water and oxygen may be prevented or at least mitigated by employing a corrosion inhibitor effective at preventing or mitigating steel corrosion in the presence of oxygen and carbon dioxide. The corrosion inhibitors may incorporate alkyl succinic acids, alkyl succinic anhydrides, and trimer acids.
    Type: Grant
    Filed: May 13, 2011
    Date of Patent: July 15, 2014
    Assignee: Baker Hughes Incorporated
    Inventors: Sunder Ramachandran, Vladimir Jovancicevic, Ksenija Babic-Samardzija, Ha M. Nguyen
  • PREVENTION OR MITIGATION OF STEEL CORROSION CAUSED BY COMBUSTION GAS
    Publication number: 20110278024
    Abstract: Recovering oil and gas from subterranean oil and gas reservoirs using gas injection can serve an additional purpose of capturing and sequestering carbon dioxide. This can be accomplished where the feed gas for the gas injection is, at least in part, carbon dioxide from a carbon dioxide capture and sequestration process. Corrosion of steel in a gas transportation system due to the presence of carbon dioxide and water and oxygen may be prevented or at least mitigated by employing a corrosion inhibitor effective at preventing or mitigating steel corrosion in the presence of oxygen and carbon dioxide. The corrosion inhibitors may incorporate alkyl succinic acids, alkyl succinic anhydrides, and trimer acids.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 17, 2011
    Applicant: BAKER HUGHES INCORPORATED
    Inventors: Sunder Ramachandran, Vladimir Jovancicevic, Ksenija Babic-Samardzija, Ha M. Nguyen