- TGS Imaging has considerable experience of the processing challenges associated with imaging through the Tertiary basalts of the NW European margin.
- Careful analysis and modeling of multiple energy is a key component of our approach as is optimal use of long offset data.
- PSDM is used to optimally image the far offset non-hyperbolic sub-basalt energy which 3 term NMO fails to flatten.
- Loss of coherency through scattering and loss of high frequency energy due to propagation through the inhomogeneous layered basalt lavas is partially overcome through rejection of sub-basalt energy above ~20-30 Hz. Large deeply towed sources tuned for low frequency bubble enhancement and recorded by deep cables now promise a more direct and successful approach.
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