![]() Some suggestions to tackle future pre salt seismic imaging and interpretative challenging issues are also proposed.įractures can play an important role in the fluid storage–migration properties of fault damage zones. Our study here deals with the challenges and uncertainty related to the seismic characterization and imaging of the stratigraphy of the lacustrine section from the Lagoa Feia Group in the Campos Basin. This represented an introductory step to a facies classification applicable at regional level in the SE Brazil offshore area but the seismic expression of the pre salt units is still very difficult and the resolution of the current seismic stratigraphic analysis need further fine tuning to de - risk the recognized petroleum prospects in that area. The combined use of image processing techniques with well log analysis has improved the characterization of some mains facies associated to some sub units of the Lagoa Feia (Ene, et al.,2015 Alvarenga et al., 2016). By using the massive existing 2D seismic dataset and two deep well logs and core information, recently a new tectonostratigraphic evolution of the area has been proposed (Ene et al. Reservoirs in this domain are in fact complex, heterogeneous, with layered carbonates apparently poorly connected which makes accurate reservoir characterization very difficult. However of the rift interval still little is known in stratigraphic and seismic facies terms, due to the challenging condition of drilling and seismic imaging of the pre salt rift structures. In the Campos Basin this interval is the main constituent of the petroleum system, containing the main source rock and important reservoirs. This section records elements of the most important petroleum system of the basins on Brazil's eastern margin (Mohriak et al, 2008). The Early Cretaceous (Berriasian to Aptian) rift section of the Brazilian basins represents the sedimentary record that is associated with the first stages of Gondwana break-up. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |