Título: | SEISMIC – GEOMECHANICAL INTEGRATION IN THE BRAZILIAN PRE-SALT, SANTOS BASIN | ||||||||||||
Autor: |
TALLES BARSANTI MENEGUIM |
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Colaborador(es): |
RAQUEL QUADROS VELLOSO - Orientador |
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Catalogação: | 28/JAN/2021 | Língua(s): | PORTUGUESE - BRAZIL |
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Tipo: | TEXT | Subtipo: | THESIS | ||||||||||
Notas: |
[pt] Todos os dados constantes dos documentos são de inteira responsabilidade de seus autores. Os dados utilizados nas descrições dos documentos estão em conformidade com os sistemas da administração da PUC-Rio. [en] All data contained in the documents are the sole responsibility of the authors. The data used in the descriptions of the documents are in conformity with the systems of the administration of PUC-Rio. |
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Referência(s): |
[pt] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=51374&idi=1 [en] https://www.maxwell.vrac.puc-rio.br/projetosEspeciais/ETDs/consultas/conteudo.php?strSecao=resultado&nrSeq=51374&idi=2 |
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DOI: | https://doi.org/10.17771/PUCRio.acad.51374 | ||||||||||||
Resumo: | |||||||||||||
In Brazil, in March 2006, with evidence of gas and oil condensate in the
Paraty location (well 1-RJS-617D of block BM-S-10) and a few months later, in
August, with the discovery of oil accumulation (well 1-RJS-628A of the block BMS-
11, pioneer of the area currently declared as LULA) in the Aptian-age carbonate
reservoirs and located in the Sub-Salt layer of the Santos Basin, these reservoirs
have acquired relevance for the economic and technological development of Brazil.
The research carried out in this project aims to develop methodology for estimating
3D scenarios of static elastic mechanical properties of deformability: modulus of
elasticity and Poisson s coefficient and the fluid-mechanical coupling factor: Biot-
Willis coefficient, integrated to the seismic data and destined to feed mechanical
simulator, mitigating uncertainties and economic and SMS risks throughout the
productive life of the various PPSBS deposits. The pioneerism of the present study
is: (I) performing deterministic CSSI (constrained sparse spike) seismic inversion
based on the initial P-Impedance model throughout stratigraphic sequence of the
Santos Basin: Post-Salt, Salt and Pre-Salt taking into account burial depth effect on
the seismic trace, (II) development of Rock Physics Models (RFM) for the entire
stratigraphic column of the Santos Basin, based on well logs and geotechnical holes,
in order to estimate the dynamic elastic mechanical properties from the PImpedance
obtained in the seismic inversion and (III) realization of simultaneous
mechanical tests on mechanical analogue rock (Roman Travertine block) of Santos
Basin Pre-Salt layer to determine static vs. dynamic relation, as well as using two
static vs. dynamic relations from scientific studies to build three scenarios of static
elastic mechanical properties of deformability and Biot-Willis coeficient. As a
result, it was verified that the three 3D scenarios of static elastic mechanical
properties of deformability, as well as, Biot-Willis coeficient inherited the level of
detail of the HD (High Definition) used seismic, that is: vertical resolution of
approximately 35m and horizontal resolution of approximately 600m.
When comparing the most rigid of the three scenarios with the least rigid, it is
observed that the static elasticity modulus vary up to 35 percent, static poisson s ratio
vary up to 22 percent and the Biot-Willis coefficient variy up to 15 percent. The greater
variation is especially in the carbonates of the Pre-Salt of Aptian age, in the
carbonates of the Post-Salt of Albian age and in the sands of the Pos-Salt of
Paleogeno and Upper Cretaceous.
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