Sub-Salt Imaging

摘要

In this era of oil and gas exploration,understanding the illumination footprint of our seismic surveys is vital.The risks are too great and vessel availability too sparse,for us not to be absolutely certain that our seismic image is going to include the information we require.Understanding the effects of the overburden or horizon topography on the illumination of the target horizon,together with optimizing the survey parameters in order to limit the areas of poor illumination is a key application of ray tracing software.In addition to illumination analysis,ray tracing software also has the potential to improve the quality of the interpretation through the identification and explanation of overburden effects.Key to the success of any ray tracing project is the replication of the earth model.The accurate representation of the geophysical properties of the subsurface is essential if the interpretation is to be correct.