Seismic Events
Mostrando 1-12 de 22 artigos, teses e dissertações.
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1. Estudo do potencial da técnica de nanossísmica para o monitoramento de hidrofraturamento em reservatórios de hidrocarbonetos
Hydraulic fracturing is an operation in which pressurised fluid is injected in the geological formation surrounding the producing well to create new permeable paths for hydrocarbons. The injection of such fluids in the reservoir induces seismic events. The measurement of this reservoir stimulation can be made by location these induced microseismic events. Ho
Publicado em: 2010
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2. Estudoda sismicidade na região de Sobral - CE em 2008
The town of Sobral is located at the northwest part of the Ceará State, 250 km away from its capital, Fortaleza. In January 2008, an intense seismic activity began near Sobral with one event with magnitude 4,2mb on May 21. Since the start of its seismic activity, all events were recorded by the SBBR station (located on EMBRAPA Caprinos Farm), which operates
Publicado em: 2010
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3. Tectônica e sedimentação na Bacia do Camaquã Central (RS): exemplos do Grupo Guaritas e do Grupo Santa Bárbara / Tectonics and sedimentation in Central Camaquã Basin: the Guaritas Group and the Santa Bárbara Group
The relationship between tectonics and sedimentation plays a primordial role in the understanding of sedimentary successions. On the other hand, the study of pre-Silurian fluvial deposits represents a challenge due to the lack of interaction between land plants and river systems which characterizes post-Silurian environments. The Camaquã Basin (Ediacaran to
Publicado em: 2010
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4. Parâmetros de fonte de microterremotos em Cascavel-CE
In this dissertation it was studied the rupture characteristic of earthquakes of the Town of Cascavel CE, Northeastern Brazil. Located on the border of the Potiguar Basin, the Town of Cascavel is one of the most seismically active intraplate areas in the country. In this town, on November 20th, 1980 a 5,2mb earthquake occurred. This was the largest earthquak
Publicado em: 2009
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5. Caracterização estatística de processos sísmicos via Distribuição Generalizada de Pareto. Estudo de caso: João Câmara-RN
O objetivo desse trabalho é fazer uma breve discussão dos métodos de estimação dos parâmetros da distribuição generalizada de Pareto (GPD). Sendo abordadas as seguintes técnicas: máxima verossimilhança (MLE), máxima verossimilhança penalizada (MPLE), métodos dos momentos (moments), Pickands (Pickands), momentos ponderados pela probabilidade: vi
Publicado em: 2008
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6. 3D OPACITY IN VOLUME RENDERING OF SEISMIC DATA / OPACIDADE 3D NA VISUALIZAÇÃO VOLUMÉTRICA DE DADOS SÍSMICOS
This work proposes a 3D opacity technique for the volume rendering of seismic data. The greater challenge of volume rendering is to define a multidimensional transfer function better adapted to the data to be visualized. This work presents a transfer function that uses three 1D color tables to compose a 3D color table. The work from Silva[30] about 2D opacit
Publicado em: 2007
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7. Migration in depth pre-piling up using the cinematic attributes of the piling up for surface of common reflection / Migração em profundidade pré-empilhamento utilizando os atributos cinemáticos do empilhamento por superfície de reflexão comum
The Common-Reflection-Surface (CRS) stack is a new seismic processing method for simulating zero-offset (ZO) and common-offset (CO) sections. It is based on a second-order hyperbolic paraxial approximation of reflection traveltimes in the vicinity of a central ray. For ZO section simulation the central ray is a normal ray, while for CO section simulation the
Publicado em: 2007
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8. Análise sismoestratigráfica dos carbonatos terciários da porção sul da Bacia de Santos / Sismoestratigraphy analisis of tertiary carbonates of South part of Santos Basin
Based on the sequence stratigraphy and on the excellent quality of the seismic data, a systematic study was used to better understand the development of the siliciclastic / carbonatic sedimentation of the southern portion of Santos Basin, occurred during Miocene. The database includes a multichannel seismic data, with approximately 500 km of linear data, and
Publicado em: 2007
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9. Seismic interpretation of post-aptian magmatic events in the Cabo Frio high, Southeast Brazil, its genesis and its relation with pre-salt alignments / Interpretação sísmica dos eventos magmáticos pós-aptianos no alto de Cabo Frio, sudeste do Brasil, gênese e relação com os lineamentos pré-sal
The continental shelf of the Cabo Frio Area, at the southern part of the Campos Basin, shows unique features in its tectono-sedimentary evolution when compared to other areas of the Campos and Santos basins. The presence of a regular pattern of antithetic faults in the basement and in the syn-rift and the post-rift sedimentary sections, along with important
Publicado em: 2006
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10. Considerações morfo-estruturais ao largo da Ponta do Pai Vitório, Búzios, RJ / Morfo-structural considerations offshore of Ponta do Pai Vitório, Búzios, RJ
The understanding of the mechanisms e causes of the tectonic movements has much worried the human race, not only in concern of natural catastrophic events, as well as the protection and maintenance of engineering structures and bottom and sub-bottom morphology in many places of the earths crust. This present work aims to illustrate structural features origin
Publicado em: 2006
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11. Aplicação da estratigrafia de sequências na seção albiana da porção sul da Bacia de Santos / Aplication of the stratigraphy of sequence on the albian section of the south portion of the Santos Basin
The main goal of this work is to detail the lower / middle Albian carbonatic section of Santos Basin based on the principles of Chemostratigraphy and Sequence Stratigraphy. Because this section was deposited under intense stress conditio ns (high salinity), its fossil content is very poor . It has limited the chronostratigraphic subdivision based only on bio
Publicado em: 2006
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12. Processamento e interpretação de dados 2D e 3D de GPR :aplicações no imageamento de feições kársticas e estruturas de dissolução no campo de petróleo de Fazenda Belém-CE
In Fazenda Belém oil field (Potiguar Basin, Ceará State, Brazil) occur frequently sinkholes and sudden terrain collapses associated to an unconsolidated sedimentary cap covering the Jandaíra karst. This research was carried out in order to understand the mechanisms of generation of these collapses. The main tool used was Ground Penetrating Radar (GPR). Th
Publicado em: 2006