Patents by Inventor Helmuth Kutta

Helmuth Kutta 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).

  • Nitrile derivative for sand control
    Patent number: 5256729
    Abstract: A composition and method for consolidating proppant or gravel for propping fractures about, or for gravel packs for sand control in, wells in subterranean formations characterized by an improvement in which there is used a combination of reactants, including a capped diisocyanate that will produce polyurethane and coat the catalyst in situ. Also disclosed are specific examples of satisfactory frac fluids, diluents and catalysts for both a specially designed one-pass system and, preferably, a two-pass system of putting and consolidating the proppant in a fracture.
    Type: Grant
    Filed: January 22, 1993
    Date of Patent: October 26, 1993
    Assignee: Atlantic Richfield Company
    Inventors: Helmuth Kutta, Robin Wiser-Halladay
  • Method of using nitrile derivative for sand control
    Patent number: 5199491
    Abstract: A composition and method for consolidating proppant or gravel for propping fractures about, or for gravel packs for sand control in, wells in subterranean formations characterized by an improvement in which there is used a combination of reactants, including a capped diisocyanate that will produce polyurethane and coat the catalyst in situ. Also disclosed are specific examples of satisfactory frac fluids, diluents and catalysts for both a specially designed one-pass system and, preferably, a two-pass system of putting and consolidating the proppant in a fracture.
    Type: Grant
    Filed: September 4, 1991
    Date of Patent: April 6, 1993
    Assignee: Atlantic Richfield Company
    Inventors: Helmuth Kutta, Robin Wiser-Halladay