Patents by Inventor D. P. Kundert

D. P. Kundert 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).

  • Squeeze cementing
    Patent number: 5121795
    Abstract: This invention relates to a method of terminating the undesirable flow of fluid through a gravel pack in a wellbore, or from a highly permeable portion of or fracture in a subterranean formation into a wellbore, which method involves the use of a hydraulic cement consisting of discrete particles having a particle size not greater than about 30 microns. The cement, which is utilized in either a slurry of water or hydrocarbon liquid, has a low density, good thixotropic properties and, in one embodiment, expansive characteristics.
    Type: Grant
    Filed: January 8, 1991
    Date of Patent: June 16, 1992
    Assignee: Halliburton Company
    Inventors: David P. Ewert, D. P. Kundert, Jeffrey A. Dahl, E. Dwyann Dalrymple, Richard R. Gerke