Geometric characterization of a fluvial system, Itaquaquecetuba Formation, Tertiary of São Paulo Basin.
Authors
Rodrigo Zanão
Departamento de Geologia Aplicada, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista.
Joel Carneiro de Castro
Departamento de Geologia Aplicada, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista.
Antonio Roberto Saad
Universidade Guarulhos, Centro de Ciências Exatas e Tecnológicas, Laboratório de Geociências
Keywords:
Ciclo de fácies, canal meandrante, canal ribbon, leque aluvial, geometria de reservatório
Abstract
The objective of this study is the geometric characterization of a fluvial system, exemplified by the Itaquaquecetuba Formation. The studied area is a quarry located in Itaquaquecetuba, distant 35 km from the city of São Paulo, which is inserted in the context of São Paulo Basin. Fluvial systems are important hydrocarbon reservoirs, and this study may contribute with an analogue for ancient reservoirs. It was elaborated ten facies logs along a distance of 200 m (log spacing of 20 m), with a vertical column (thickness) of 40 m for each log. Eight facies cycles, and its lateral chrono-correlation allowed to map the potential reservoir and non-reservoir facies within each cycle. Regarding the depositional model for the studied section, it is assumed an alluvial fan system composed of meandering and ribbon-type fluvial channels
Author Biographies
Joel Carneiro de Castro, Departamento de Geologia Aplicada, Instituto de Geociências e Ciências Exatas, Universidade Estadual Paulista.
http://lattes.cnpq.br/4416646800692691
Antonio Roberto Saad, Universidade Guarulhos, Centro de Ciências Exatas e Tecnológicas, Laboratório de Geociências
