Next, the water bottom’s acoustic amplitude was extracted and displayed in plan view. The water bottom horizon was mapped over these surveys using hand-interpreted seed-lines and Schlumberger’s geophysical interpretation software GeoFrame’s automatic picking function to fill the gaps between. These results cover over 230,000 square kilometers of seismic data interpretation.
These areas show anomalously high or low acoustic amplitude response relative to typical background, with most areas having overlapping seismic coverage by two or more surveys.
The purpose of this mapping program is to understand the distribution of natural hydrocarbon seeps and related benthic fauna (chemosynthetic and coral communities) in the GOM, and to characterize other seafloor features related to the geological framework of the seafloor.
Since 1998, geoscientists at the Bureau of Ocean Energy Management (BOEM) have identified and mapped nearly 37,000 water bottom (seafloor) acoustic amplitude anomalies in the deep water northern Gulf of Mexico (GOM) using 3-D time-migrated seismic surveys.
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