Patents by Inventor Hans Tieman

Hans Tieman 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).

  • Patent number: 4813027
    Abstract: A method and apparatus for stacking a plurality of seismic midpoint gathers to provide an enhanced pictorial representation of seismic events is disclosed. The approximate propagation velocity corresponding to a selected event in a common midpoint gather, is determined by summing the common midpoint gather using first and second weights to provide respective first and second weighted sums over offset based on an estimated velocity corresponding to the event, and developing from the sums a velocity error value indicative of the approximate error between the estimated velocity and the actual velocity. The common midpoint gather is then re-stacked in accordance with the determined propagation velocity to provide an enhanced pictorial representation of the seismic event. The first and second weighted sums are taken over a time window centered upon an estimated zero offset travel time for the event.
    Type: Grant
    Filed: July 17, 1987
    Date of Patent: March 14, 1989
    Assignee: Arabian American Oil Company
    Inventor: Hans Tieman