Patents by Inventor Ernesto Uehara-Nagamine

Ernesto Uehara-Nagamine 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).

  • Oil recovery process
    Patent number: 9784081
    Abstract: The present invention provides a method for enhancing the recovery of oil from a formation. An enhanced oil recovery formulation comprising a gas comprised of a hydrocarbon-containing gas and an ether having from 2 to 4 carbons is injected into an oil-bearing formation to mobilize the oil. The mobilized oil is then produced from the formation.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: October 10, 2017
    Assignee: SHELL OIL COMPANY
    Inventors: Carolus Petrus Adrianus Blom, Ralf Hedden, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine
  • Water injection systems and methods
    Patent number: 9464516
    Abstract: A system comprising a well drilled into an underground formation comprising hydrocarbons; a production facility at a topside of the well; a water production facility connected to the production facility; wherein the water production facility produces water by passing the water through a first and a second nanofiltration module, and then injects the water 5 into the well.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 11, 2016
    Assignee: Shell Oil Company
    Inventors: Subhash Chandra Bose Ayirala, Robert Wing-Yu Chin, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine
  • Water injection systems and methods
    Patent number: 9234413
    Abstract: A system comprising a well drilled into an underground formation comprising hydrocarbons; a production facility at a topside of the well; a water production facility connected to the production facility; wherein the water production facility produces water by removing some multivalent ions, then removing some monovalent ions, and then adding back some monovalent ions, and then injects the water into the well.
    Type: Grant
    Filed: June 23, 2010
    Date of Patent: January 12, 2016
    Assignee: Shell Oil Company
    Inventors: Subhash Chandra Bose Ayirala, Robert Wing-Yu Chin, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine
  • OIL RECOVERY PROCESS
    Publication number: 20150060075
    Abstract: The present invention provides a method for enhancing the recovery of oil from a formation. An enhanced oil recovery formulation comprising a gas comprised of a hydrocarbon-containing gas and an ether having from 2 to 4 carbons is injected into an oil-bearing formation to mobilize the oil. The mobilized oil is then produced from the formation.
    Type: Application
    Filed: November 10, 2014
    Publication date: March 5, 2015
    Inventors: Carolus Petrus Adrianus BLOM, Ralf HEDDEN, Andreas Nicholas MATZAKOS, Ernesto UEHARA-NAGAMINE
  • SYSTEMS AND METHODS FOR PRODUCING OIL AND/OR GAS
    Publication number: 20130048279
    Abstract: A system for producing oil and/or gas from an underground formation comprising a well above the formation; a mechanism to inject an enhanced oil recovery formulation into the formation, the enhanced oil recovery formulation comprising water and an additive; and a mechanism to produce oil and/or gas from the formation.
    Type: Application
    Filed: May 4, 2011
    Publication date: February 28, 2013
    Inventors: Matthias Appel, Subhash Chandra Bose Ayirala, Amy L.O. Blackwell, Carolus Petrus Adrianus Blom, Zheyi Chen, Ralf Hedden, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine, William Otto Mickelson
  • WATER INJECTION SYSTEMS AND METHODS
    Publication number: 20120227975
    Abstract: There is disclosed a system comprising a well drilled into an underground formation comprising hydrocarbons; a production facility at a topside of the well; a water production facility connected to the production facility; wherein the water production facility produces water by passing the water through a first and a second nanofiltration module, and then injects the water into the well.
    Type: Application
    Filed: October 29, 2010
    Publication date: September 13, 2012
    Inventors: Subhash Chandra Bose Ayirala, Robert Wing-Yu Chin, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine
  • WATER INJECTION SYSTEMS AND METHODS
    Publication number: 20120125611
    Abstract: There is disclosed a system comprising a well drilled into an underground formation comprising hydrocarbons; a production facility at a topside of the well; a water production facility connected to the production facility; wherein the water production facility produces water by removing some multivalent ions, then removing some monovalent ions, and then adding back some monovalent ions, and then injects the water into the well.
    Type: Application
    Filed: June 23, 2010
    Publication date: May 24, 2012
    Applicant: Shell Internationalale Research Maatschappij
    Inventors: Subhash Chandra Bose Ayirala, Robert Wing-Yu Chin, Andreas Nicholas Matzakos, Ernesto Uehara-Nagamine
  • CURRENT TANK SYSTEMS AND METHODS
    Publication number: 20100139384
    Abstract: There is disclosed a current tank system comprising a first current tank adapted to produce a first current in a first direction, and a second current tank adapted to produce a second current in a second direction. There is also disclosed a method of testing a sample, comprising exposing the sample to a first current in a first current tank, and exposing the sample to a second current in a second current tank.
    Type: Application
    Filed: February 8, 2007
    Publication date: June 10, 2010
    Inventors: Donald Wayne Allen, Dean Leroy Henning, David Wayne McMillian, Janet Kay McMillian, Raghunath Gopal Menon, Ernesto Uehara-Nagamine, Christopher Steven West