Reconhecimento e análise das fácies sísmicas nas sucessões rift das bacias de Campos e Santos

Translated title of the contribution: Recognition and analysis of seismic facies in the rift successions of the Campos and Santos Basins

Renata Alvarenga, Juliano Kuchle, David Iacopini, Patrycia Ene, Claiton Scherer, Karin Goldberg

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Abstract

With deep-water reservoirs, the pre-salt scenario in Campos and Santos basins setting heterogeneous and complex deposits, and thus brings new challenges for seismic inter-pretation. This study aims at the seismic characterization of the rift section (Upper Hauterivian to Barremian, immediately below the pre-salt reservoirs) in the Campos and Santos basins, with the use of 2D seismic data and two well logs. We analyzed the seismic textures, and the integration of lithologic data defined the corresponding to three seismic facies: Seismic facies 1 (fault-border de-posits) displays similar behavior in both basins, with occurrence restricted to the fault borders in a wide and well-defined area; Seismic facies 2 (fine-grained deposits) is widespread in the Campos and Santos basins and grades laterally to seismic facies 3; Seismic facies 3 (grainstone and rudsto-ne deposits) has restricted and erratic occurrence in both areas of the high flexural margin, as well as in the deep areas near the depocenter of the analyzed half-grabens.

Translated title of the contributionRecognition and analysis of seismic facies in the rift successions of the Campos and Santos Basins
Original languagePortuguese
Pages (from-to)325-341
Number of pages17
JournalPesquisas em Geociências
Volume43
Issue number3
DOIs
Publication statusPublished - 1 Sep 2016

Keywords

  • Rift basin
  • Seismic attributes
  • Seismic texture

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