Patents by Inventor Jan Valenta

Jan Valenta 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 of using semblance of corrected amplitudes due to source mechanisms for microseismic event detection and location
    Patent number: 10036819
    Abstract: A method for determining hypocenters of microseismic events includes entering as input to a computer seismic signals recorded by a plurality of seismic sensors disposed proximate a volume of subsurface to be evaluated. For each point in space in the volume, and for a plurality of preselected origin times, a seismic energy arrival time at each seismic sensor is determined. Event amplitudes for each arrival time are determined. A synthetic event amplitude is calculated for each arrival time. A semblance between the determined event amplitudes and the synthetic event amplitudes is determined. Existence of an actual microseismic is determined event when the semblance exceeds a selected threshold.
    Type: Grant
    Filed: April 17, 2015
    Date of Patent: July 31, 2018
    Assignee: Microseismic, Inc.
    Inventors: Leo Eisner, Frantisek Stanek, Jan Valenta
  • METHOD OF USING SEMBLANCE OF CORRECTED AMPLITUDES DUE TO SOURCE MECHANISMS FOR MICROSEISMIC EVENT DETECTION AND LOCATION
    Publication number: 20170097430
    Abstract: A method for determining hypocenters of microseismic events includes entering as input to a computer seismic signals recorded by a plurality of seismic sensors disposed proximate a volume of subsurface to be evaluated. For each point in space in the volume, and for a plurality of preselected origin times, a seismic energy arrival time at each seismic sensor is determined. Event amplitudes for each arrival time are determined. A synthetic event amplitude is calculated for each arrival time. A semblance between the determined event amplitudes and the synthetic event amplitudes is determined. Existence of an actual microseismic is determined event when the semblance exceeds a selected threshold.
    Type: Application
    Filed: April 17, 2015
    Publication date: April 6, 2017
    Applicant: Microseismic, Inc.
    Inventors: Leo Eisner, Frantisek Stanek, Jan Valenta