Patents by Inventor Don Dell

Don Dell 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).

  • Modified bentonites for advanced foundry applications
    Patent number: 8657948
    Abstract: Methods of reducing the permeability of a subterranean formation to aqueous-based fluids using a water-soluble relative permeability modifier that comprises a hydrophobically modified polymer, wherein the hydrophobically modified polymer is a reaction product of: a hydrophilic polymer that comprises a polymer selected from the group consisting of a polyvinylamine, a poly(vinylamine/vinyl alcohol), and an alkyl acrylate polymer; and, a hydrophobic compound comprising at least one alkyl chain having a carbon chain length between about 4 and about 22 carbons. The water-soluble relative permeability modifier may be placed within a subterranean drilling operation such that the water-soluble relative permeability modifier attaches onto surfaces within the subterranean formation to effect permeability of aqueous fluids.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: February 25, 2014
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Charles Landis, Thomas Anderson, Eric Frantz, Don Dell, Matthew Hilfiger
  • Modified Bentonites for Advanced Foundry Applications
    Publication number: 20110315335
    Abstract: Methods of reducing the permeability of a subterranean formation to aqueous-based fluids using a water-soluble relative permeability modifier that comprises a hydrophobically modified polymer, wherein the hydrophobically modified polymer is a reaction product of: a hydrophilic polymer that comprises a polymer selected from the group consisting of a polyvinylamine, a poly(vinylamine/vinyl alcohol), and an alkyl acrylate polymer; and, a hydrophobic compound comprising at least one alkyl chain having a carbon chain length between about 4 and about 22 carbons. The water-soluble relative permeability modifier may be placed within a subterranean drilling operation such that the water-soluble relative permeability modifier attaches onto surfaces within the subterranean formation to effect permeability of aqueous fluids.
    Type: Application
    Filed: August 26, 2011
    Publication date: December 29, 2011
    Applicant: Halliburton Energy Services, Inc.
    Inventors: Charles Landis, Thomas Anderson, Eric Frantz, Don Dell, Matthew Hilfiger
  • Modified Bentonites for Advanced Foundry Applications
    Publication number: 20100269998
    Abstract: A composition for use in producing a foundry mold. The composition has a binder, which may include a smectite clay. The composition also has a modifier, which may include a metal carbonate. The composition also includes a foundry sand.
    Type: Application
    Filed: February 2, 2009
    Publication date: October 28, 2010
    Inventors: Charles Landis, Thomas Anderson, Eric Frantz, Don Dell, Matthew Hilfiger