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COMPUTING AMPLITUDE INDEPENDENT GRADIENT FOR SEISMIC VELOCITY INVERSION IN A FREQUENCY DOMAIN
COMPUTING AMPLITUDE INDEPENDENT GRADIENT FOR SEISMIC VELOCITY INVERSION IN A FREQUENCY DOMAIN
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机译:在频域中计算振幅独立梯度以进行地震速度反演
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摘要
A method for computing amplitude independent gradient for seismic velocity inversion in a frequency domain includes receiving seismic data associated with a region. The region comprises one or more earth subsurface layers represented by a plurality of points, and each point is associated with a seismic velocity. Seismic velocities at the plurality of points are determined by iteratively updating the seismic velocities based on a plurality of gradient values, where each gradient value corresponds to a point and is determined by evaluating a gradient of an objective function at a location of the point. A seismic image of the one or more earth subsurface layers is displayed based on the determined seismic velocities.
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