Fault reactivation case study for probabilistic assessment of carbon dioxide sequestration

Pereira, F. L. G.; Roehl, Deane; Laquini, J; Oliveira, M.F.F.; Costa, Annielson de Souza

doi:10.1016/j.ijrmms.2014.08.003

Cited by 18 publications

(5 citation statements)

References 24 publications

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“…It is a common understanding that the stress field variation may induce fault slips (Pereira et al 2014;Sainoki andMitri 2014, 2015a;Feng et al 2015;Ma et al 2019;Li et al 2021;Taghipour et al 2021). However, to obtain the accurate distribution and evolution of a stress field is a challenge due to the heterogeneity of rock mass and the limitation of stress measurement methods (Hubbert and Willis 1957;Brown and Hoek 1978;Zoback et al 2003).…”

Section: Stress and Displacement Fieldmentioning

confidence: 99%

An experimental study of fault slips under unloading condition in coal mines

Zhang

Shan

et al. 2023

Bull Eng Geol Environ

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To investigate the mechanism of fault slips in coal mines, a biaxial shear experiment was carried out under unloading condition based on the fault F16 in Yima city, China. Two rock samples were used in the experiment and each sample was composed of two triangular sandstone blocks which were put together to simulate the fault. One rock sample was used to do fault slip tests and it was called slip-test sample. The other sample for comparison with the slip-test one was untested, and it was named non-slip-test sample. During the biaxial shear experiment of the slip-test sample, normal and shear strains near the fault, acoustic emission (AE) signals, and the sliding displacement were measured. After the experiment, microscopic profiles of fault surfaces of both rock samples were examined by scanning electron microscope (SEM). In addition, a numerical simulation was conducted to model the slip of the fault F16. The results indicate that: (1) three fault slips occurred during the biaxial shear experiment, and the shear stress, normal and shear strains in the first slip showed the maximum variation among three slips; (2) Shear strains near the two ends of the fault had a more significate variation than that in the middle part, and the typical trend of shear strains was first dropping, then increasing rapidly, and then falling slowly to a specific value during the first slip; (3) The first slip had the largest sliding displacement of 29.89 $$\mu m$$ μ m , and in the first slip three phases including slow slip, main shock and aftershock occurred based on AE monitoring results. (4) On the fault surface of non-slip-test sample, microstructures such as bulges, voids and veins were ubiquitous and notable, making the fault surface much rough, while similar microstructures were few and the fault surface of the slip-test sample was flattened after fault slips; (5) The slipping direction in the shallow part and deep part of the fault F16 were opposite during mining.

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Section: Stress and Displacement Fieldmentioning

confidence: 99%

An experimental study of fault slips under unloading condition in coal mines

Zhang

Shan

et al. 2023

Bull Eng Geol Environ

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“…A distribuição log-normal ficou em segundo lugar no ranqueamento, e apresentou-se como a melhor distribuição para as parcelas araucária e imbuia, apesar de ser o pior ajuste obtido para a parcela fogo. A aplicação da função log-normal para modelagem de atributos do solo também foi utilizada por Pereira et al (2014) para modelar a probabilidade de falhas geológicas resultantes das alterações nas propriedades rochosas devido ao processo conhecido como captura e sequestro de carbono, feito de forma artificial por injeção em rochas profundas que, segundo os autores, pode causar a reativação de falhas geológicas. Esses autores apontam que a teoria das probabilidades é uma ferramenta poderosa para alcançar um bom equilíbrio entre as consequências de conhecimento incerto e o custo da redução dessa incerteza.…”

Section: Conclusõesunclassified

Modelagem da distribuição de frequência de teores carbono orgânico do solo sob Floresta Ombrófila Mista no Paraná

et al. 2017

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Neste trabalho objetivou-se modelar o teor de carbono no solo de parcelas sob Floresta Ombrófila Mista em condições distintas (predomínio de araucária, de imbuia e vegetação mista com registro de ocorrência de fogo), no Paraná, a partir de distribuições probabilísticas. Para tal, foi avaliada a qualidade de ajuste e aderência de diferentes funções de probabilidade (normal, Weber, Weibull 3P, log-normal, SB de Johnson e Gama), pelo teste de Kolmogorov-Smirnov. Todas as funções densidade de probabilidade resultaram em bons ajustes, podendo então ser utilizadas para modelar os dados de carbono no solo em qualquer uma das parcelas. As funções foram ranqueadas a partir dos valores do teste Kolmogorov-Smirnov, e decidiu-se que a função Gama é a mais apropriada para modelar o teor de carbono nas três parcelas estudadas. Ainda, ao realizar a comparação das distribuições Gama ajustadas pelo teste Kolmogorov-Smirnov nas diferentes condições testadas, observou-se que elas apresentam configurações distintas, portanto, devem ser modeladas individualmente.

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“…[11][12][13][14][15] Coupled hydromechanical modeling is typically used for evaluation of the poroelastic effect of injection as well as the resulting geomechanical outcomes such as the potential for fracturing in reservoirs, analysis of slippage along faults, surface uplift, and associated seismicity. 8,[16][17][18][19][20][21][22] Different numerical approaches including finite element method, finite difference method, discrete element method, and boundary element method have been used to address in situ stress changes and rock deformation. [23][24][25][26][27][28] Combinations of different methods have also been developed to address the poroelastic response of injection.…”

Section: Introductionmentioning

confidence: 99%

Statistical based hydromechanical models to estimate poroelastic effects of CO₂ injection into a closed reservoir

Raziperchikolaee

Mishra

2020

Greenhouse Gases

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In this study, a statistical‐based methodology is used to evaluate the poroelastic effects of injection during CO2 geologic sequestration in a closed reservoir. We constructed a series of hydromechanical models to evaluate the poroelastic effect of injection by quantifying total stress changes inside the reservoir, reservoir displacement, and surface uplift. The models are representative of closed carbonate reef reservoirs of the Michigan basin. A combination of experimental design for seven independent parameters (depth, caprock and reservoir Young's modulus, caprock and reservoir Poisson's ratio, pressure, and Biot's coefficient) and response surface modeling was used to develop statistical‐based reduced‐order models. We performed 147 numerical simulations to develop simplified models. The poroelastic model responses were captured using a standard quadratic model with full interaction terms, as well as a reduced model with only statistically significant coefficients. The interpretation of reduced‐order models, using R2 loss method, shows that while surface uplift depends mainly on the depth of the reservoir, stress increase depends mainly on Biot's coefficient. The developed statistical‐based models provide a quick tool to evaluate the poroelastic effect of injection into the closed carbonate reservoirs of the Michigan basin. Reduced‐order models were then combined with a Monte Carlo simulation to perform poroelastic uncertainty analyses and achieve a better understanding of the poroelastic performance of CO2 storage in the closed carbonate system of the Michigan basin. © 2020 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Fault reactivation case study for probabilistic assessment of carbon dioxide sequestration

Cited by 18 publications

References 24 publications

An experimental study of fault slips under unloading condition in coal mines

An experimental study of fault slips under unloading condition in coal mines

Modelagem da distribuição de frequência de teores carbono orgânico do solo sob Floresta Ombrófila Mista no Paraná

Statistical based hydromechanical models to estimate poroelastic effects of CO₂ injection into a closed reservoir

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Fault reactivation case study for probabilistic assessment of carbon dioxide sequestration

Cited by 18 publications

References 24 publications

An experimental study of fault slips under unloading condition in coal mines

An experimental study of fault slips under unloading condition in coal mines

Modelagem da distribuição de frequência de teores carbono orgânico do solo sob Floresta Ombrófila Mista no Paraná

Statistical based hydromechanical models to estimate poroelastic effects of CO2 injection into a closed reservoir

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Statistical based hydromechanical models to estimate poroelastic effects of CO₂ injection into a closed reservoir