Patents by Inventor Van T. Smith

Van T. Smith 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).

  • Well treatment fluid compatible self-consolidation particles
    Patent number: 5955144
    Abstract: An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: September 21, 1999
    Assignees: Sanatrol, Inc., Georgia-Pacific Resins, Inc.
    Inventors: A. Richard Sinclair, Richard L. Johnson, II, Richard A. Rediger, Van T. Smith
  • Well treatment fluid compatible self-consolidating particles
    Patent number: 5948734
    Abstract: An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: September 7, 1999
    Assignees: Sanatrol, Inc., Georgia-Pacific Resins, Inc.
    Inventors: A. Richard Sinclair, Richard L. Johnson, II, Richard Rediger, Van T. Smith
  • Well treatment fluid compatible self-consolidating particles
    Patent number: 5837656
    Abstract: An improved resin coated particle comprises a particulate substrate, an inner coating of a curable resin and an outer coating of a substantially cured resin. These improved resin coated particles are produced by first coating the substrate with a reactive resin. A second or outer coating of a resin is then coated over the inner curable resin coating and subjected to conditions of time and temperature sufficient to substantially cure said outer coating while the inner coating remains curable. The particles can be used in a method for treating subterranean formations, which comprises placing in or adjacent to the formation a quantity of the resin coated particle and allowing them to cure into a high strength permeable mass in the formation.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: November 17, 1998
    Assignees: Santrol, Inc., Georgia-Pacific Resins, Inc.
    Inventors: A. Richard Sinclair, Richard L. Johnson, II, Richard A. Rediger, Van T. Smith