Patents by Inventor Darin Oswald

Darin Oswald 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).

  • Clay control additive for wellbore fluids
    Patent number: 7915202
    Abstract: A clay stabilizer which is capable of inhibiting swelling in a wide variety of clay types and is also capable of restoring permeability in formations which have previously been damaged by clay swelling. Amine salts of differing molecular weights configurations and ionic strength are combined to provide transport into micropores, mesopores and macropores in the formation and to effect cationic change therein. A poly quaternary amine having a high to very high charge density is added along with lower molecular weight amine salts to substantially permanently exchange cations with the clay in the formation.
    Type: Grant
    Filed: April 27, 2010
    Date of Patent: March 29, 2011
    Assignee: Weatherford Engineered Chemistry Canada Ltd.
    Inventors: Clayton Smith, Darin Oswald, Michael D Daffin
  • Single fluid acidizing treatment
    Patent number: 7915205
    Abstract: An acidizing formulation for use in the stimulation of hydrocarbon production is stable when packaged and stored as a single fluid for periods exceeding one year. The formulation contains a miscibility solvent which substantially prevents any phase separation between the constituents and lack of dispersion of the additives in the fluid.
    Type: Grant
    Filed: June 9, 2006
    Date of Patent: March 29, 2011
    Assignee: Weatherford Engineered Chemistry Canada Ltd.
    Inventors: Clayton Smith, Darin Oswald, Dan Skibinski, Nicole Sylvestre
  • CLAY CONTROL ADDITIVE FOR WELLBORE FLUIDS
    Publication number: 20100210484
    Abstract: A clay stabilizer which is capable of inhibiting swelling in a wide variety of clay types and is also capable of restoring permeability in formations which have previously been damaged by clay swelling. Amine salts of differing molecular weights configurations and ionic strength are combined to provide transport into micropores, mesopores and macropores in the formation and to effect cationic change therein. A poly quaternary amine having a high to very high charge density is added along with lower molecular weight amine salts to substantially permanently exchange cations with the clay in the formation.
    Type: Application
    Filed: April 27, 2010
    Publication date: August 19, 2010
    Applicant: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
    Inventors: Clayton SMITH, Darin OSWALD, Michael D. DAFFIN
  • Clay control additive for wellbore fluids
    Patent number: 7740071
    Abstract: A clay stabilizer which is capable of inhibiting swelling in a wide variety of clay types and is also capable of restoring permeability in formations which have previously been damaged by clay swelling. Amine salts of differing molecular weights configurations and ionic strength are combined to provide transport into micropores, mesopores and macropores in the formation and to effect cationic change therein. A poly quaternary amine having a high to very high charge density is added along with lower molecular weight amine salts to substantially permanently exchange cations with the clay in the formation.
    Type: Grant
    Filed: June 23, 2006
    Date of Patent: June 22, 2010
    Assignee: Innovative Chemical Technologies Canada Ltd.
    Inventors: Clayton Smith, Darin Oswald, Michael D. Daffin
  • CLAY CONTROL ADDITIVE FOR WELLBORE FLUIDS
    Publication number: 20060289164
    Abstract: A clay stabilizer which is capable of inhibiting swelling in a wide variety of clay types and is also capable of restoring permeability in formations which have previously been damaged by clay swelling. Amine salts of differing molecular weights configurations and ionic strength are combined to provide transport into micropores, mesopores and macropores in the formation and to effect cationic change therein. A poly quaternary amine having a high to very high charge density is added along with lower molecular weight amine salts to substantially permanently exchange cations with the clay in the formation.
    Type: Application
    Filed: June 23, 2006
    Publication date: December 28, 2006
    Applicant: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
    Inventors: Clayton SMITH, Darin OSWALD, Michael DAFFIN
  • SINGLE FLUID ACIDIZING TREATMENT
    Publication number: 20060281636
    Abstract: An acidizing formulation for use in the stimulation of hydrocarbon production is stable when packaged and stored as a single fluid for periods exceeding one year. The formulation contains a miscibility solvent which substantially prevents any phase separation between the constituents and lack of dispersion of the additives in the fluid.
    Type: Application
    Filed: June 9, 2006
    Publication date: December 14, 2006
    Applicant: INNOVATIVE CHEMICAL TECHNOLOGIES CANADA LTD.
    Inventors: Clayton SMITH, Darin OSWALD, Dan SKIBINSKI, Nicole SYLVESTRE