Sub-salt reflection tomography and imaging by walkaway VSP...

Communications – electrical: acoustic wave systems and devices – Seismic prospecting – Land-reflection type

Reexamination Certificate

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C367S025000, C367S073000

Reexamination Certificate

active

07911878

ABSTRACT:
A walkaway VSP survey is carried out with receivers located in a borehole near the base salt. Reflection tomographic inversion of data from the walkaway VSP is used to derive a velocity model for the subsurface and may be used for imaging of sub-salt reflections.

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