| CPC G01V 1/307 (2013.01) [G01V 1/345 (2013.01); G01V 1/50 (2013.01); G01V 2210/43 (2013.01)] | 9 Claims |
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1. A method, comprising:
obtaining a seismic dataset of a subterranean region;
generating a window function based, at least in part, on the seismic dataset;
transforming, to a first range, the seismic dataset from a first domain to a second domain using a transform function, wherein the first range comprises a first minimum value and a first maximum value of an output transform variable;
transforming, to a second range, the window function from the first domain to the second domain using the transform function, wherein the second range comprises a second minimum value and a second maximum value of the output transform variable, wherein the second minimum value is smaller than the first minimum value and the second maximum value is larger than the first maximum value;
generating an input spectrum from the transformed seismic dataset, wherein the input spectrum comprises at least one slice;
iteratively, or recursively, until a condition is met:
for each slice:
estimating a weight function using the input spectrum;
generating a weighted input spectrum using the weight function and the input spectrum;
identifying a strongest attribute from the weighted input spectrum;
determining an output spectrum based on the identified strongest attribute; and
updating, without re-indexing the transformed window function to reduce a number of computations, the input spectrum by removing the identified strongest attribute from the input spectrum using the transformed window function, and
determining an output spectrum volume by combining the output spectrum for each slice;
generating an output seismic dataset using an inverse transform function and the output spectrum volume;
generating a seismic image of the subterranean region based, at least in part, on the output seismic dataset;
determining a location of a hydrocarbon reservoir based, at least in part, on the seismic image;
planning, using a wellbore planning system, a wellbore path to intersect the location of the hydrocarbon reservoir; and
drilling, using a wellbore drilling system, a wellbore guided by the planned wellbore path.
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