A5057148867- Reservoir Engineering and Simulation Methods
- Hydraulic Fracturing and Reservoir Analysis
- Fullerene Chemistry and Applications
- Drilling and Well Engineering
- Computational Geometry and Mesh Generation
- Oil and Gas Production Techniques
- Graph Labeling and Dimension Problems
- Spatial Cognition and Navigation
- Historical Geography and Cartography
- Hydrological Forecasting Using AI
- Advanced Numerical Methods in Computational Mathematics
- Graphene research and applications
- Seismic Imaging and Inversion Techniques
- Groundwater flow and contamination studies
- Geological Modeling and Analysis
- Biodiesel Production and Applications
- Enhanced Oil Recovery Techniques
- Graph theory and applications
- Catalytic Processes in Materials Science
- Algal biology and biofuel production
- Advanced Graph Theory Research
- Advanced Mathematical Theories and Applications
- Advanced Numerical Analysis Techniques
Universidade Federal Fluminense
2023
Pontifical Catholic University of Rio de Janeiro
2016-2022
Petrobras (Brazil)
2020
Sociedade Brasileira de Educação Matemática
2015
Ensemble-based methods have been widely used in uncertainty quantification, particularly, reservoir history matching. The search for a more robust method which holds high nonlinear problems is the focus this area. Ensemble Kalman Filter (EnKF) popular tool these problems, but studies noticed results of final ensemble, dependent on initial ensemble. Smoother (ES) an alternative, with easier impletation and low computational cost. However, it presents same problem as EnKF. Multiple Data...
Microalgae have emerged as a promising source of biomass to produce renewable biofuels due their ability synthesize desirable hydrocarbons such alkanes and alkenes. This study proposes an approach for pilot-scale oil extraction, purification by fractional distillation, hydrocarbon characterization gas chromatography coupled mass spectrometry (GC-MS), evaluation physicochemical parameters the produced hydrocarbons, process cost analysis unlock potential using microalgae biofuel production....
Precisely forecasting oil field performance is essential in reservoir planning and management. Nevertheless, production a complex nonlinear problem due to all geophysical petrophysical properties that may result different effects with bit of change. All decisions be made during an exploitation project needs considering efficient algorithms simulate data, providing robust scenarios lead the best deductions. To reduce uncertainty simulation process, researchers have efficiently introduced...
Abstract Let be a finite, simple, and connected graph. The closed interval of set is the all vertices lying on shortest path between any pair S . geodetic if eccentricity vertex v number edges in greatest w G A contour no neighbor has greater than formed by We consider two problems: problem determining whether graph class geodetic; there exists such that not geodetic. obtain sufficient condition useful for both problems; we prove realization theorem related to show infinite families Using...
A vertex v is called a contour if no neighbor of has an eccentricity greater than v.The Ct(G) the set formed by all vertices G. Given S ⊆ V (G), closed interval I[S] lying on shortest paths between any pair S. We say that geodetic ifIn this work, we show structural and computational results for two problems proposed Cáceres et al. 2005: (i) to determine whether geodetic;(ii) there exists graph G such I 2 [Ct(G)] ̸ = (G).We contribute study these adding three infinite families graphs whose...
A fullerene graph is a planar, cubic, 3-connected with only pentagonal and hexagonal faces. In 2012, Andova Škrekovski conjectured that the diameter of every n vertices at least √5n/3 - 1. They computed this lower bound by studying particular class graphs named spherical icosahedral symmetry. We denote these Gi,j, setting two parameters i, j ε N*, such i ≤ j. their study, offered numerous properties lattices calculated remarkable graphs: G0,j Gj,j. Although conjecture valid for distinct...
Lobos turbidíticos são elementos arquiteturais responsáveis pela formação de um importante reservatório petróleo. Neste trabalho propomos uma caracterização petrofísica modelo baseado em objetos lobos a partir ajuste histórico dados pressão observadas durante teste poço com duração 4 dias. Para tal, foi utilizado o método assimilação Ensemble Kalman Filter.