Patents by Inventor Michael H. Grealy

Michael H. Grealy 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).

  • Method for determining aggregate fracture properties for evaluation of fracture procedures
    Patent number: 9897711
    Abstract: A method for imaging microseismic events includes determining a hypocenter of microseismic events generated by at least one stage of a hydraulic fracturing procedure from recorded signals detected by seismic sensors disposed above a wellbore in the subsurface. Spatial position of the microseismic events occurring sequentially in the fracturing procedure is determined with reference to a center of fracturing procedure. Each microseismic event is assigned to one of a plurality of selected size bins defined positionally with reference to the center of the fracturing procedure. A property of each microseismic event assigned to each bin is aggregated and an image of the aggregated property is generated with respect to position referenced to the center of the fracturing procedure.
    Type: Grant
    Filed: April 7, 2014
    Date of Patent: February 20, 2018
    Assignee: Microseismic, Inc.
    Inventor: Michael H. Grealy
  • METHOD FOR DETERMINING AGGREGATE FRACTURE PROPERTIES FOR EVALUATION OF FRACTURE PROCEDURES
    Publication number: 20150285933
    Abstract: A method for imaging microseismic events includes determining a hypocenter of microseismic events generated by at least one stage of a hydraulic fracturing procedure from recorded signals detected by seismic sensors disposed above a wellbore in the subsurface. Spatial position of the microseismic events occurring sequentially in the fracturing procedure is determined with reference to a center of fracturing procedure. Each microseismic event is assigned to one of a plurality of selected size bins defined positionally with reference to the center of the fracturing procedure. A property of each microseismic event assigned to each bin is aggregated and an image of the aggregated property is generated with respect to position referenced to the center of the fracturing procedure.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 8, 2015
    Inventor: Michael H. Grealy