First data is available on PGS’ Peru MegaSurvey, a merged and matched seismic dataset, including 2D and 3D data, targeting the extensive coastline of Peru.
First data is available on PGS’ Peru MegaSurvey, a merged and matched seismic dataset, including 2D and 3D data, targeting the extensive coastline of Peru.
The survey comprises 21,000 km2 of 3D data matched and merged together with approx. 23,000 km of 2D data. It covers both existing discoveries and licensing opportunities in open blocks, revealing analogs of existing interests. A time-processed dataset is now available.
Depth processing is continuing using a seismic-horizon-constrained velocity model through five different basins, from the prolific Talara basin in the north to the frontier basins in the extreme south. Depth results are expected in Q1 2021.
Well control data will be incorporated using rockAVO for forward modelling and QI modelling.
The Peruvian continental margin is characterized by the Peru-Chile trench, where the Nazca Plate converges obliquely and subducts beneath the South American Plate. This margin is a classic accretionary prism, comprising a series of Mesozoic-Cenozoic fore-arc basins that form the continental slope.
These basins are separated by rotated basement highs, generated by strike-slip faulting. Intermittent reactivation of these basement faults caused the extension and inversion of several offshore basins during the Cenozoic period.
The diverse regional geology provides a range of structural and stratigraphic traps with reservoir intervals spanning Paleozoic-Tertiary, said PGS. Mature basins with producing fields to the north and underexplored frontier basins to the south provide the perfect exploration environment with many exciting opportunities, the company added.
