The Pimenteiras Formation records the marine ingression in the Meso/Neo-Devonian of the Parnaíba Basin, and it shales are the main source rock interval for its conventional petroleum system. The aim of this paper is to integrate geological and geochemical data in order to provide the potential on shale gas production of the Pimenteiras Formation, based on the outcrop sampling. Nine depositional facies were iden...
The Crato Member is one of the most important stratigraphic units of the Araripe Basin due to its fossil content, its context analogous to the Brazilian “Pre-Salt Layers”, and its use as covering stone. Facies and petrographic analyses were combined in our study of a section of the Crato Member in Nova Olinda (State of Ceará, Brazil), aiming to investigate its depositional and diagenetic history. Thus, we analy...
The Brazilian equatorial margin (BEM) evolved in response to transform motion between Brazil and Africa. In 2012, Petrobras drilled the Pecem well in the Mundaú subbasin (Ceará Basin) of the BEM to record the first deep-water oil discovery in the region. This work investigates the deep-water evolution of the Mundaú subbasin focusing on its structural and sedimentary evolution, and characterizes the petroleum sy...
Even being the more studied of the interior basins of Northeast Brazil, the Araripe Basin still lacks research in organic geochemistry designed to support interpretations of depositional systems and conditions of formation. This work aims to investigate the organic behavior of evaporites and shales from the Santana Group (Lower Cretaceous), as well as discuss their role in the evolution of its depositional syst...
The Ceará Basin is an offshore basin and belongs to the Brazilian Equatorial Margin, covering the states of Ceará, Piauí, and part of Maranhão. The tectonic evolution of the Ceará Basin is correlated to three stages of sedimentary filling divided in sequence: Sin-rift, represented by the Mundaú Fm, transitional (breakup sequence), represented by the Paracuru Fm. Paracuru and drift (open sea), represented by Fm....
SOUZA, Ana Clara Braga de. Mineralogia e geoquímica de folhelhos da Formação Pimenteiras no leste da Bacia do Parnaíba e suas implicações para produção de gás natural não-covencional. 2016. 52 f. Dissertação (Mestrado em Geologia)-Universidade Federal do Ceará, Fortaleza, 2016.; Understanding unconventional reservoirs of shale gas involves defining their geochemical and geophysical properties. So, technical fea...