Geomechanics
Mostrando 1-8 de 8 artigos, teses e dissertações.
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1. NUMERICAL ANALYSIS OF SAND CONTROL METHODS IN OIL-PRODUCING ROCKS / ANÁLISE NUMÉRICA DE MEDIDAS DE CONTENÇÃO DE SÓLIDOS EM ROCHAS PRODUTORAS DE ÓLEO DO BRASIL
During the production steps of a petroleum well, issues regarding sand production may have hight costs due to damages in the equipment or reduction of the well¿s productivity. Such problems make the application of sand control systems in the completion phase one of the most complex and essential parts in the construction of the well. This work aims to simul
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/08/2011
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2. ImplementaÃÃo em elementos finitos das equaÃÃes de pressÃo e saturaÃÃo para simulaÃÃo de fluxo bifÃsico em reservatÃrios de petrÃleo deformÃveis
A injeÃÃo e extraÃÃo de fluidos de um reservatÃrio de petrÃleo causam variaÃÃes de pressÃes, temperatura e saturaÃÃes, que podem afetar o estado de tensÃes, levando a deformaÃÃes na rocha reservatÃrio e modificando sua porosidade e permeabilidade, bem como afeta as rochas vizinhas. Trata-se, portanto, de um problema acoplado onde o fluxo de fl
Publicado em: 2009
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3. APLICATIONS OF PROBABILITY AND STATISTICS IN GEOTECHNICAL ANALYSES / APLICAÇÕES DE PROBABILIDADE E ESTATÍSTICA EM ANÁLISES GEOTÉCNICAS
In geotechnical analyses, forecasts of safety factors or deformations are developed on the basis of deterministics methods, that admit as fixed and known the parameters of the soil or the rock. However, such forecasts are affected by uncertainties proceeding from the reproduction impossibility of the field conditions in laboratory, of the disturbance of the
Publicado em: 2008
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4. Modelo para anÃlise de tensÃes gravitacionais a partir de caracterÃsticas geomecÃnicas dos maciÃos rochosos
Stresses acting on rock mass can be either of natural origin or induced. The natural origin stresses, or in situ stresses, are divided into: gravitational, tectonics, waste and land. The induced stresses are caused by the action of engineering works such as excavation or construction. These works alter the balance of the state of pre-existing stresses in the
Publicado em: 2008
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5. GEOLOGICAL AND GEOMECHANICS MODELLING 3D AND STABILITY ANALYSES 2D OF THE SLOPES OF THE MORRO DA MINA MINE, CONSELHEIRO LAFAIETE, MG, BRAZIL / MODELAGEM GEOLÓGICA E GEOMECÂNICA 3D E ANÁLISES DE ESTABILIDADE 2D DOS TALUDES DA MINA DE MORRO DA MINA, CONSELHEIRO LAFAIETE, MG, BRASIL
This work presents a methodology to develop geological and geomechanic models (3D) and to carry out stability analyses (2D) of rock slopes of open pit mine, based on data of Morro da Mina mine, provided by the mining company VALE. The methodology is divided in two stages: modelling and stability analyses. For the modelling, the software Petrel 2004, which al
Publicado em: 2008
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6. Modelagem de injeção de agua acima da pressão de fratura do reservatorio atraves de poço horizontal virtual / Modeling water injection above reservoir formation parting pressure through a virtual horizontal well
Water injection has been the most used method to improve oil recovery. The main problem of this method, related directly with operational efficiency, is the injectivity loss which is the loss of capacity to maintain water injection rates due to formation damage. Different models have been proposed to minimize the injectivity loss effects due to its high econ
Publicado em: 2007
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7. GEOMECHANICAL EFFECTS ON PETROLEUM RESERVOIR SIMULATIONS / EFEITOS GEOMECÂNICOS NA SIMULAÇÃO DE RESERVATÓRIOS DE PETRÓLEO
Numerical simulators for reservoir flow analysis are important tools for the optimization of oil field development. These simulators model the multiphase flow through compressible porous medium taking into account the phase equilibrium equations, flow laws and the rock volumetric change associated to the pore pressure change during production. Some simulator
Publicado em: 2002
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8. ESTUDO DO ADENSAMENTO E RESSECAMENTO DE RESÍDUOS DE MINERAÇÃO E PROCESSAMENTO DE BAUXITA / RESEARCH ON CONSOLIDATION AND DESICCATION OF BAUXITE MINING AND INDUSTRIAL PROCESSING WASTES
This work presents the methodology used to study the consolidation and desiccation of bauxite wastes from mining and industrial processing. The aim is to understand the geotechnical behavior of these wastes launched as slurries in reservoirs and then, let do dry under solar exposure. Five types of residues are here considered. The first is an inert waste res
Publicado em: 2002