METHOD AND APPARATUS FOR BUILDING ENVELOPE GUIDED LOW FREQUENCY MODEL FOR SEISMIC EXPLORATION OF SUBSURFACE FORMATIONS
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United States of America Patent
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Jul 30, 2024
Grant Date -
Aug 8, 2024
app pub date -
Feb 8, 2023
filing date -
Feb 8, 2023
priority date (Note) -
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Abstract
A method and system for generating and displaying a low frequency model for a seismic survey region are provided. The method and system may include defining a seismic survey geometry of the seismic survey region; processing seismic data to generate a stacked seismic data and well log data to obtain elastic attributes; importing stacked seismic data and processed well log data into the defined seismic survey geometry; generating envelope data using the stacked seismic data; generating a low frequency trace for each well; calculating a least-squares optimized coefficient model at each well location based upon the generated envelope data and the low frequency trace for each well; interpolating the coefficient model to the seismic survey geometry using a covariance technique and the imported stacked seismic data; and generating a three-dimensional low frequency model by inversion using the envelope data and the interpolated coefficient model for display.
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