Page 118

National Institute of Science and Technology in Petroleum Geophysics (INCT-GP) Management committee Milton José Porsani (Coordenador) Amin Bassrei (Vice-coordenador) Jesse Carvalho Costa Joerg D. Wilhelm Schleicher Olivar Antônio Lima de Lima Walter Eugênio de Medeiros Main researchers Ângelo Amâncio, Amin Bassrei, Antonio Expedito G. Azevedo, Hédison Kiuity Sato, Herman Augusto Lepikson, Leizer Schnitman, Milton José Porsani, Olivar Antônio Lima de Lima, Reynam da Cruz Pestana, Roberto Max de Argolo, Cícero Roberto Teixeira Regis, Ellen de Nazaré Souza Gomes, Jessé Carvalho Costa, Lourenildo Barbosa Leite, Marcos Welby Correa Silva, Aderson Farias do Nascimento, Jose Antonio Morais Moreira, Roberto Hugo Bielschowsky, Rosângela Correa Maciel, Walter Eugênio de Medeiros, Joerg D. Wilhelm Schleicher, Lúcio Tunes dos Santos, Martin Tygel, M. Amélia Novais Schleicher, Ricardo C. Azevedo Biloti Main research topics 1. Electromagnetic methods for reservoir characterization 2. Seismic imaging methods 3. Inverse problems in Geophysics 4. Filter methods of geophysical data 5. Reservoir characterization through induced microseismicity 6. Interface for the integration of the INCT-GP’s computational devices 7. Methods for the analysis and management of reservoirs 8. Potential and nuclear methods for petroleum exploration Summary of achievements and perspectives The studies of seismic imaging yielded new methods to obtain and refine velocity models for seismic time-migration and time-to-depth conversion, as well as advances in several aspects of seismic migration techniques. The obtained results constitute a great progress in the way how to proceed when constructing seismic images. The studies of the multifrequency electromagnetic method proved its capacity to map the conductivity distribution and the effect of induced polarization related to the presence of brine or petroleum. The results reached until now allow to predict the use of the electromagnetic method as a complementary technique to the traditional seismic method, as much in exploration as in the monitory of secondary petroleum recovery. The studies on inverse problems in geophysics focused on the stability and efficiency question and resulted in new methods and robust algorithms for the solution of large systems. Moreover, new methods were developed for the study and management of reservoirs, for the attenuation of multiple reflections and for the filtering to improve seismic signals. These results are of great importance as much for imaging as for reservoir studies and contribute to the reduction of uncertainty and exploration risks. Up to the present moment, the INCT-GP staff realized numerous admi-

nistrative tasks together with their research and education activities, such as the implementation of research grants, home-page construction, contraction of services and acquisition of equipment, as well as the graduation of 6 M.Sc.s, 2 PhDs, 4 B.Sc.s and the publication of 9 papers in national and international journals with restrictive editorial policy. The main perspective of the INCT-GP at the moment is defined by its aims to (1) deepen and amplify the scientific cooperation with national and international institutions and companies; (2) incorporate new research groups, co-workers and institutions that work in the area of geophysics applied to the exploration and study of hydrocarbon reservoirs; (3) consolidate its physical infrastructure and construct the necessary tools for its management and for the dissemination of its research and results, exchange of researchers and students. Main publications AMAZONAS, D.; ALEIXO, R.; SCHLEICHER, J.; COSTA, J. C. Anisotropic complex Padé hybrid finite-difference depth migration. Geophysics, v. 75(2), S51-S59. 2010. COSTA, J. C.; SILVA NETO, F. A; ALCANTARA, M. R. M; SCHLEICHER, J.; NOVAIS, A.. Obliquity-correction imaging condition for reverse time migration. Geophysics, v. 74, p. S57-S66, 2009. LUZ, E. C.; REGIS, C. R. T. Influence of Sea Water Resistivity on MCSEM Data. Revista Brasileira de Geofísica, v. 27(3), p. 349-356, 2009. LUDWIG JR, O.; NUNES, U.; SCHNITMAN, L.; LEPIKSON, H. A. Applications of Information Theory, Genetic Algorithms, and Neural Models to Predict Oil Flow. Communications in Nonlinear Science & Numerical Simulation, v. 14, p. 52-67, 2009. MEDEIROS, W. E., NASCIMENTO, A. F do., and ALVES da Silva, F. C., DESTRO, N., Demétrio, J.G.A., no prelo, Evidence of hydraulic connectivity across deformation bands from field pumping tests: two examples from Tucano Basin, NE Brazil: Journal of Structural Geology. DOI information:10.1016/j.jsg.2009.08.019. NASCIMENTO, A. F. do; MEDEIROS, W. E.; Bielschowsky, R.H.. Trade-off between stability and bias in a history match problem using smoothness constraint. Inverse Problems in Science & Engineering, v. 16, p. 567-582, 2008. Contacts Instituto de Geociências Rua Barão de Jeremoabo, s/n Campus Universitário de Ondina Salvador – BA CEP: 40170-115 E-mail: milton.porsani@pq.cnpq.br Página eletrônica: http://www.inct-gp.org

117

livroinct2010  

Carlos Alberto Aragão de Carvalho Filho Presidente do CNPq 1

livroinct2010  

Carlos Alberto Aragão de Carvalho Filho Presidente do CNPq 1

Advertisement