We have developed a new method to build seismic velocity models for complex structures. In our approach, we use a spatially non-uniform parameterization of the velocity model in tomography and use a uniform grid representation of the same velocity model in ray tracing to generate the linear system of tomographic equations. Subsequently, a matrix transformation is applied to the system of equations to produce a new linear system of tomographic equations using the non-uniform parameterization. In this way, we improve the stability of tomographic inversion without adding computational cost. We demonstrate the effectiveness of our process with a 3D synthetic data example.
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Tomographic Inversion By Matrix Transformation
Paper presented at the 2006 SEG Annual Meeting, New Orleans, Louisiana, October 2006.
Paper Number: SEG-2006-3350
Published: October 01 2006
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Liu, Jonathan, Bear, Lorie, Krebs, Jerry, Montelli, Raffaella, and Gopal Palacharla. "Tomographic Inversion By Matrix Transformation." Paper presented at the 2006 SEG Annual Meeting, New Orleans, Louisiana, October 2006.
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