Diffraction Imaging in the North Sea, Case Study Over the Dutch Q16 Fields

In 2013 SGS Horizon, in combination with Z-Terra and Moser Geophysical Services, carried out a reprocessing job for operator Oranje Nassau Energie which involved the merge of the offshore survey Q16 and onshore survey Monster. The pre-processing of the data was followed by pre-stack time and depth migration, all steps with amplitudes preserved because of fluid sensitivity of the reservoir. The velocity model involved estimation of anisotropy parameters and confirmed findings of a negative delta in the Tertiary as seen in other parts of the southern North Sea. The construction of a high-quality velocity model created the optimal conditions for subsequent diffraction imaging, which in turn provides high-resolution structural information.