Efficient seismic attribute gather generation with data synthesis and expectation method
AssigneeExxonMobil Upstream Research Company
InventorsJia Yan, John E. Anderson, Rongrong Lu, Carey M. Marcinkovich
Life of this patent
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Abstract
A method for generating seismic attribute gathers, the method including: computing, with a computer, seismic images with a field dataset; generating, with a computer, synthetic data corresponding to the seismic images; computing, with a computer, an attribute volume by applying an expectation method to the synthetic data; mapping, with a computer, the attribute volume to the seismic images; and generating, with a computer, seismic attribute gathers by stacking the seismic images mapped to the attribute volume.
Claims16
A method for generating seismic attribute gathers, the method comprising:
- computing, with a computer, seismic images with a field dataset;
- generating, with a computer, synthetic data corresponding to the seismic images, using a forward simulation method that omits surface-related multiples;
- computing, with a computer, an attribute volume by applying an expectation method to the synthetic data, wherein applying the expectation method to the synthetic data comprises;
- applying a migration process to the synthetic data to generate a subsurface image volume;
- applying a migration process to the synthetic data, wherein seismic traces of the synthetic data are weighted by multiplying the seismic traces by a function of a value of an attribute, and generating an attribute weighted subsurface image volume;
- and
- computing the attribute volume by applying a division process to the subsurface image volume and the attribute weighted subsurface image volume;
- mapping, with a computer, the attribute volume to the seismic images;
- and
- generating, with a computer, seismic attribute gathers by stacking the seismic images mapped to the attribute volume.
Dependencies are inferred from the claim text.