3D stereotomography applied to the deep-sea data acquired in the South China Sea, part II: the real case study

摘要

3D stereotomography is a very appealing tomographic method for the real applications. In the part I of this study, we construct the 3D stereotomography (frechet) matrix based on non-reduced Hamiltonian in the 3D Cartesian coordinate. It has the advantage of reducing the computational cost and capable of considering the turning rays when compared with the pervious reduced Hamiltonian version in ray-centered coordinate. In this abstract (part II of this study), the 3D stereotomography algorithm formulated in the part I has been implemented to the 3D deep-sea narrow-azimuth real data acquired in South-China Sea. With the help of 3D structure tensor algorithm, a high-quality data space for 3D stereotomography can be achieved. It guarantees we can get a reliable inverted result with presented 3D stereotomography algorithm. The inverted model can serve as a fit model for the 3D prestack depth migration. The synthetic and real data examples demonstrated the above points.