New Light on Northern Argentina

Spectrum geologists Hannah Kearns, Karyna Rodriguez and Steve DeVito shed new light on Northern Argentina in this months GeoExpro. New seismic data offshore Argentina reveals extraordinary structures in an underexplored region.

Offshore northern Argentina has attracted very little industry interest over the years. A lack of success in exploration campaigns in the late 1960s and mid-1990s can now be largely attributed to a lack of understanding of rift basin/rifted volcanic margin architecture and to inadequate acquisition and imaging technology. Recent billion barrel discoveries in analogous basins on the Atlantic margin, utilizing state-of-the-art seismic and drilling technology with current geological concepts on source rock and reservoir development, suggest this underexplored part of the world could be one of the last frontiers for both shallow and deepwater exploration.

A subset of 22 lines from a new long-offset 2D exploration survey acquired from 2017 to 2018 was used in this analysis, along with shipborne and regional satellite-derived gravity and magnetic data. The available seismic data was a mixture of conventional and broadband PSTM and PSDM processing offering greatly enhanced imaging, which is essential for future exploration on this margin. Acquisition of the full dataset was completed in April 2018, with final processing scheduled for delivery in late Q2 2018.

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GEO_ExPro_New Light on Northern Argentina