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Technical Paper: Seismic Comparison of Deepwater Fields of the Gulf of Mexico and Offshore Brazil
Paper 1816167
Abstract
This study compares five deepwater fields, Mars and Diana
in the Gulf of Mexico and Roncador, Marlim and Albacora
Leste offshore Brazil.
These reservoirs occur in basin floor fan, prograding wedge
and slope fan systems tracts. Recently acquired 2D seismic
data show them to consist of high amplitude high
continuity and hummocky lower continuity reflectors.
The Gulf of Mexico field examples occur in minibasins
surrounded by massive allochthonous salt canopies. The
Brazil examples are controlled by massive but
autochthonous salt. Hydrocarbon migration into the Brazil
fields is from a syn-rift source via large faults, which
breach the salt where it is welded. Migration into the
minibasins of the Gulf of Mexico is more complex due to
the allochthonous salt but will probably be via salt-welded
minibasin floors.
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