Patents by Inventor Endre IVARRUD

Endre IVARRUD 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).

  • HYDRAULIC FRACTURING AND FRAC-PACKING USING ULTRA LIGHT, ULTRA STRONG (ULUS) PROPPANTS
    Publication number: 20170030179
    Abstract: A method of fracturing or frac-packing a subterranean zone surrounding a well bore includes fracturing the subterranean zone with a fracturing fluid to form fractures; pumping proppant slurry comprising ultra-light, ultra-strong proppant into the fractures of the subterranean zone; and releasing pressure after pumping to form propped fractures.
    Type: Application
    Filed: July 31, 2015
    Publication date: February 2, 2017
    Applicant: STATOIL GULF SERVICES LLC
    Inventors: Pandurang M. KULKARNI, Desikan SUNDARARAJAN, Virgil Ray ELLIS, Endre IVARRUD
  • APPLICATIONS OF ULTRA-LOW VISCOSITY FLUIDS TO STIMULATE ULTRA-TIGHT HYDROCARBON-BEARING FORMATIONS
    Publication number: 20150345268
    Abstract: A method of recovering hydrocarbons from a hydrocarbon-bearing subterranean formation with a matrix permeability of less than 1 mD is disclosed. The method includes injecting a volume of a first fluid having a viscosity lower than the viscosity of water into an injection well present in the formation; separately injecting a volume of a second fluid into the formation before, after, or before and after injecting the first fluid; and producing at least a fraction of the injected volume of the first fluid and hydrocarbons from the formation through a production well present in the formation.
    Type: Application
    Filed: May 27, 2014
    Publication date: December 3, 2015
    Applicant: STATOIL GULF SERVICES LLC
    Inventors: Jason BRYANT, Endre IVARRUD, Lionel RIBEIRO, Huina LI