Junia Casagrande

Profile

From 2008 to 2018 I worked as a reservoir geologist in Petrobras Oil Company - Brazil. Before that I obtained my bachelor degree in Geology and my master in Geosciences (major in stratigraphy) from the Federal University of Rio Grande do Sul – Brazil. During my time in this university I worked with several research projects applied to stratigraphic and petrographic analysis of Brazilian Sedimentary Basins, which were sponsored by different companies and institutions. In the industry I had the opportunity to work with giant turbidite oil fields. In my work experience, I was able to use and analyse a complete subsurface data set including 3D and 4D high-resolution seismic cores, logs, petrophysical data, biostratigraphy and production data. The main activities that I had performed as a reservoir geologist were: high resolution stratigraphic analysis, 3D geological modelling, seismic interpretation, petrophysical analysis and geological uncertainty analysis. All these activities were applied to the development and management of turbidite oil fields and to support the history match in the 3D simulation models, reserves estimation, field production forecast and drilling projects of new producers and injectors wells. Currently, I am a Postgraduate Researcher in the School of Earth and Environment, with support from Petrobras.

Research interests

My main interest as a post-graduate researcher is the elaboration of stratigraphic models for deep-water deposits. The industry experience has revealed to me the necessity of exploring the large data set that my company Petrobras has available in order to refine and produce more predictable geological models. Although many turbidite fields are considered mature areas their production is challenging and reservoir teams face uncertainties related to geological complexities inherent to these types of deposits.  These uncertainties are reflected in unreliable production forecasts which directly impact the recovery factor of these fields. In many instances, the lack of predictability in the models are related to superficial geological interpretations which are not  up to date with the evolution of the scientific knowledge on the subject experienced in the last years.   

Regarding all that this PhD. is an opportunity to perform a detailed geological study in a complete subsurface data set which encompasses 3 different oil fields of the Campos Basin, offshore Brazil. The aims of the research are: i) to propose stratigraphic evolution models for submarine channels and lobe systems by integrating sedimentological analysis in cores and cutting samples, high resolution stratigraphic correlations and architecture patterns definition and hierarchy using wells and detailed seismic mapping as well as seismic attributes. ii) Undertake a morphometric analysis of the preserved elements in the submarine channel systems analysing logs, cores, seismic architecture and dynamic data and also outcrops studies. The goal is to identify distinct and predictive patterns of facies distributions, logs, heterogeneities, geometries and dynamic behavior. The analysis of these data can contribute with valuable information for subsurface areas with lack of data.

 

Qualifications

• MSc Geosciences (Major in Stratigraphy) – Federal University of Rio Grande do Sul-Brazil
• BSc Geology - Federal University of Rio Grande do Sul-Brazil

Research groups and institutes

• Institute of Applied Geoscience