Patents by Inventor Douglas Portis

Douglas Portis 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).

  • Microseismic density volume estimation
    Patent number: 10401512
    Abstract: Rock properties and structural attributes can be combined with an ellipsoid stimulation model around a well bore. A stepwise regression or other optimization analysis can then used to determine what property(ies) and/or attribute(s) has the greatest impact on the shape and properties of a microseismic density volume and can be best used to predict the same. These same properties and/or attributes can then be used to create a microseismic density volume around another nearby well where microseismic data was not recorded to estimated a stimulated reservoir volume.
    Type: Grant
    Filed: April 8, 2014
    Date of Patent: September 3, 2019
    Assignee: Pioneer Natural Resources USA, Inc.
    Inventors: Robert Meek, Bailo Suliman, Robert Hull, Hector Bello, Douglas Portis