Patents by Inventor James H. PENLAND

James H. PENLAND 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).

  • Self suspending proppants with brine tolerance for hydraulic fracturing
    Patent number: 10457860
    Abstract: The present invention relates to a proppant coated with: at least one water-soluble and/or water-swellable polymers; and at least one composition comprising at least one sequestering agent; the sequestering agent being in the layer of water soluble and/or water-swellable polymer and/or in another layer. The invention also relates to the use of this proppant for hydraulic fracturing and especially when the hydraulic fracturing fluid comprises divalent cations in a proportion equal or greater to 0.1 weight %.
    Type: Grant
    Filed: October 5, 2016
    Date of Patent: October 29, 2019
    Assignee: S.P.C.M. SA
    Inventors: James H. Penland, W. Kurt Hammesfahr, Jordan Davis
  • SELF SUSPENDING PROPPANTS WITH BRINE TOLERANCE FOR HYDRAULIC FRACTURING
    Publication number: 20180094187
    Abstract: The present invention relates to a proppant coated with: at least one water-soluble and/or water-swellable polymers; and at least one composition comprising at least one sequestering agent; the sequestering agent being in the layer of water soluble and/or water-swellable polymer and/or in another layer. The invention also relates to the use of this proppant for hydraulic fracturing and especially when the hydraulic fracturing fluid comprises divalent cations in a proportion equal or greater to 0.1 weight %.
    Type: Application
    Filed: October 5, 2016
    Publication date: April 5, 2018
    Inventors: James H. PENLAND, W.Kurt HAMMESFAHR, Jordan DAVIS