Impact of micro-scale characteristics of shale reservoirs on gasdepletion behavior: A microscale discrete model

ADVANCES IN GEO-ENERGY RESEARCH, Journal Year: 2025, Volume and Issue: 15(2), P. 143 - 157

Published: Jan. 4, 2025

Shale gas has become increasingly significant in the global energy supply. Mineral heterogeneity shales importantly impacts transport within shale matrix and therefore depletion history curve. A microscale discrete coupling model is introduced to clarify mass transfer mechanical interactions, as well their impact on properties, ranging from individual mineral through ensemble field scale. The uses a morphology thin-section obtained tescan integrated analyzer with parameters, controlling both elastic viscosity behavior of each mineral, achieved nanoindentation. coupled for poromechanical evolution proposed solved using COMSOL. applicability results are validated against data dimensionless approach. This confirms that early stages depletion, primarily liberated inorganic minerals, whereas later stages, it predominantly sourced adsorbed organic matter. Over time, permeability minerals decreases, higher Young's modulus greater ultimate ratio. Evolution effective diffusion coefficient matter controlled by multiple components. negative correlation exists between grain size creep effects, indicating larger sizes result smaller magnitudes during production. inversely correlated coefficient, while an increase corresponds coefficient. complements traditional continuum dual-medium method provides clearer understanding interactions behavior. Document Type: Original article Cited as: Cheng, W., Guo, Y., Cui, G., Elsworth, D., Tan, Pan, Z. Impact micro-scale characteristics reservoirs behavior: model. Advances Geo-Energy Research, 2025, 15(2): 143-157. https://doi.org/10.46690/ager.2025.02.06 References Abdallah, Vandamme, M., Chateau, C., et al. Linking properties various carbonate rocks microstructure nanoindentation SEM-EDS. International Journal Rock Mechanics Mining Sciences, 2023, 170: 105456. Abedi, S., Slim, Ulm, F.-J. Nanomechanics organic-rich shales: role thermal maturity content texture. 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Language: Английский

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Microstructure and nanomechanical characterization of tectonic coal based on SEM, AFM, XRD and DSI

Surfaces and Interfaces, Journal Year: 2024, Volume and Issue: 46, P. 104158 - 104158

Published: March 1, 2024

Language: Английский

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Comparison of geomechanical upscaling methods for prediction of elastic modulus of heterogeneous media

Geoenergy Science and Engineering, Journal Year: 2024, Volume and Issue: 239, P. 212915 - 212915

Published: May 11, 2024

Geomechanical properties of rocks are essential for understanding their elastic behavior. These parameters find applications in various fields such as petroleum engineering, and geological storage sites, nuclear waste carbon dioxide other geotechnical operations. There several methods to obtain these parameters, including experimental methods, mathematical upscaling, numerical simulation while approaches more trusted. The aim this study is estimate Young's modulus a shale sample from major upscaling compare the results polyaxial compressive strength test nanoindentation measurements on same piece sample. To achieve this, five theoretical models, DEM, MT, SCA, KTF, DM, have been utilized calculate based constituent components that was obtained routine XRD geochemical analysis. calculations each were performed two scenarios: without incorporating organic matter model with it, range porosity values input found literature. materials following schemes 24.0661 [GPa] 27.0001 [GPa]. Likewise, excluding substances calculated 25.1784 29.1394 [GPa], smallest largest values, respectively. compared (34.15 GPa) (24.36 GPa). decreases approximately 7% considering around 2.45% decrease less than 5% variation 1% porosity. Based results, it concluded overall provide an acceptable they cost-effective time-efficient when expensive time-consuming can replace them. Furthermore, use reduces need destructive testing also eliminates requirement equipment limited access proper size samples required preparations should be followed. However, lithology presence certain type pore spaces fractures not taken lightly process.

Language: Английский

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Anisotropic microscale failure mechanism of shale

Acta Geotechnica, Journal Year: 2024, Volume and Issue: 19(11), P. 7451 - 7471

Published: June 21, 2024

Language: Английский

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Investigation of the Impact of Supercritical Carbon Dioxide on the Micro-mechanical Properties of Tight Sandstone Using Nano-indentation Experiments

Geoenergy Science and Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 213678 - 213678

Published: Jan. 1, 2025

Language: Английский

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Experimental study on micromechanical properties of bricks from ancient Han Dynasty sites based on nanoindentation

Journal of Building Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 112546 - 112546

Published: April 1, 2025

Language: Английский

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Constitutive modeling of sedimentary argillaceous rocks for deep geological disposal of radioactive waste

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

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Coupled thermo-hydro-mechanical analysis of multi-stage artificial ground freezing for tunneling. A case study for sequential versus simultaneous freezing

Computers and Geotechnics, Journal Year: 2025, Volume and Issue: 185, P. 107291 - 107291

Published: May 5, 2025

Language: Английский

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Hydromechanical coupling in unsaturated clayey rocks with double porosity based on a multiscale homogenization procedure

Computers and Geotechnics, Journal Year: 2024, Volume and Issue: 171, P. 106380 - 106380

Published: April 29, 2024

Language: Английский

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An assumed enhanced strain finite element framework for tensile fracturing processes with dual-mechanism failure in transversely isotropic rocks

Journal of Rock Mechanics and Geotechnical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Aug. 1, 2024

Language: Английский

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