Frequency autonormalisation reservoir mapping
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United States of America Patent
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Jun 1, 2010
Grant Date -
Dec 27, 2007
app pub date -
May 22, 2007
filing date -
Jun 9, 2006
priority date (Note) -
In Force
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Abstract
A method of locating subsurface hydrocarbon reservoirs includes acquiring seismic data, dividing the seismic data into time windows, applying a data transform to the seismic data having a plurality of components to obtain a smoothed frequency spectrum, selecting one or more local maxima and minima, determining a frequency product as a function of the maxima and minima in a form for display. Lower and higher ratio thresholds may be selected to further discriminate frequency product selection for display. A display or map of frequency products over a survey area may indicate the presence of subsurface fluid reservoirs.
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