| Grant number: | 01/01068-0 |
| Support Opportunities: | Research Projects - Thematic Grants |
| Start date: | August 01, 2001 |
| End date: | July 31, 2005 |
| Field of knowledge: | Physical Sciences and Mathematics - Mathematics - Applied Mathematics |
| Principal Investigator: | Martin Tygel |
| Grantee: | Martin Tygel |
| Host Institution: | Instituto de Matemática, Estatística e Computação Científica (IMECC). Universidade Estadual de Campinas (UNICAMP). Campinas , SP, Brazil |
| Pesquisadores principais: | Joerg Dietrich Wilhelm Schleicher ; Lucio Tunes dos Santos |
Abstract
Seismic processing is an essential tool for all activities in exploration and monitoring of petroleum reservoirs. Its objective is to generate images of the subsurface regions of interest, i.e., to map the geological structures and to extract the parameters that caracterize their lithology and petrophysical properties. Seismic processing is realized by the application of sophisticated mathematical and computational algorithms to huge seismic data sets. These data are acquired in large and expensive land and marine seismic surveys, which are frequently realized under highly unfavorable conditions (mountain tops or deep waters). In this project, we will develop a vast range of seismic processing algorithms that will be directly applicable in the petroleum industry. Among the algorithms to be studied, those of fundamental importance are true-amplitude time and depth migration, as well as multi-parameter stacking methods for multi-coverage data. Introduced only recently, the latter methods do not need a priori given velocity models. On the contrary, they provide not only a stacked section, but also important seismic attributes that are utilized for the construction of more consistent velocity models for a posterior migration. At first, the algorithms to be developed will be tested at synthetic models of increasing complexity. Later, they will be incorporated into commercial processing software, already available at UNICAMP, to be applied to real seismic data. The project will benefit from the infrastructure and the experience of the Center for Petrolem Studies of the State University of Campinas (CEPETRO/UNICAMP) and its close contacts to the petroleum sector. In this way, the research to be carried out will be well oriented to relevant problems. This guarantees that the results in this important area of application will be meaningful and valuable for the technological framework of Brazil. (AU)
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