Banca de DEFESA: JONE LUCAS MEDJA USSALU

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE : JONE LUCAS MEDJA USSALU
DATA : 26/03/2021
HORA: 14:00
LOCAL: Instituto de Geociências
TÍTULO:

Spectral, Fractal and Multivariate Analysis: Applications in Climate Series and Well Log Data from Mozambique.

PALAVRAS-CHAVES:

Espectral analysis, fractal analysis, climate dynamics, cluster analysis, discriminant analysis, lithological profile, fluid contact.

PÁGINAS: 88
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Geociências
SUBÁREA: Geofísica
RESUMO:

This study applies the spectral and fractal analyses in climate series and the cluster and discriminant analyses in geophysical well log data. In the first case, we intended to understand the climatic dynamics of the southern region of Mozambique by evaluating the periodicity, persistence, tendency and long-term variability of the time series of precipitation and extreme temperatures related to 1960-2018. The results of the analyzes are related to the current global climate observations and projections contained in the fifth assessment report of the Intergovernmental Panel on Climate Change (IPCC-AR5), regarding the Austral Africa which include Mozambique. In particular, the signal of climate change in Mozambique is visible, and the trends converge to those reported in the IPCC-AR5. In the second case, the main objective was to determine the lithological profile and fluid contacts in reservoirs. Well log data from five wells over the Rovuma sedimentary Basin - Mozambique were used. For the discrimination, a reference well was chosen for training, and the obtained functions from it were then applied to the remaining wells. The classification process comprehended three main phases. The two methods were applied in parallel and the results are compared in each classification phase. In general, both methods converged to the same lithological model and fluidtypes in reservoirs. Gas has been indicated as the most predominant hydrocarbon in the basin.

MEMBROS DA BANCA:
Interno(a) - 1150068 - AMIN BASSREI
Externo(a) à Instituição - JOSE JADSON SAMPAIO FIGUEIREDO - UFPA
Externo(a) à Instituição - ROBERTO FERNANDES SILVA ANDRADE - UFBA