Can Part of the Data give the Full Solution?

2D marine seismic exploration, with a single-streamer, is often the standard practice for exploring large offshore basins. However, to de-risk prospects and prepare for drilling exploration wells, often a follow-on 3D will be acquired to define the petroleum system elements, structure, and seismic attributes. Some have attempted to bridge the gap between 2D and 3D by producing pseudo 3D data interpolated from 2D exploration seismic data. However, with degradation to more complex 3D structures and attributes, the success of this approach can be limited. Here we present a case study where a sparse, multi-steamer survey was acquired and interpolated to provide a pseudo 3D volume over a 3700 km2 area. This approach elevated the structural imaging and seismic attribute fidelity of the pseudo 3D volume to that of 3D exploration quality. Albeit in the right geological setting, this approach can deliver 3D seismic quality at 2D seismic exploration scale and cost by leveraging sparse, multi-streamer acquisition, with a survey deisgn optimised for interpolation to a full 3D image from the start, as opposed to using existing data for the same purpose.