Impact of Fault-Normal Stiffness on Frictional Slip Instability in Induced Seismicity (doi:10.7910/DVN/FO6IC8)

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Impact of Fault-Normal Stiffness on Frictional Slip Instability in Induced Seismicity

doi:10.7910/DVN/FO6IC8

Harvard Dataverse

2026-03-13

3

Sun, Zihan, 2026, "Impact of Fault-Normal Stiffness on Frictional Slip Instability in Induced Seismicity", https://doi.org/10.7910/DVN/FO6IC8, Harvard Dataverse, V3

Impact of Fault-Normal Stiffness on Frictional Slip Instability in Induced Seismicity

doi:10.7910/DVN/FO6IC8

Sun, Zihan (Liaoning University, Shenyang, China)

Harvard Dataverse

Sun, Zihan

Sun, Zihan

2026-03-11

https://doi.org/10.7910/DVN/FO6IC8

Earth and Environmental Sciences, Engineering, Mathematical Sciences

Data and simulation results for the numerical models of "Impact of Fault-Normal Stiffness on Frictional Slip Instability in Induced Seismicity".

<a href="http://creativecommons.org/publicdomain/zero/1.0">CC0 1.0</a>

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Figure 10. Comparison of fault critical stiffness evolution under three different well shut-in scenarios.xlsx

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Figure 10. Comparison of fault critical stiffness evolution under three different well shut-in scenarios. (a) Injected volume and injection rate during the shut-in period. (b) Evolution of fault critical stiffness. (c) Evolution of the fault normal stiffness component.

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Figure 11. Comparison of fault critical stiffness evolution for different fault locations.xlsx

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Figure 11. Comparison of fault critical stiffness evolution for different fault locations. (a) Evolution of fault critical stiffness. (b) Evolution of the fault normal stiffness component.

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Figure 12. Evolution of fault critical stiffness incorporating the effect of the intermediate principal stress.xlsx

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Figure 12. Evolution of fault critical stiffness incorporating the effect of the intermediate principal stress. (a) Influence of the intermediate principal stress on fault normal stiffness. (b) Evolution of fault critical stiffness and its normal stiffness component.

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Figure 13. Evolution of fault critical stiffness under the influence of different fault aperture parameters.xlsx

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Figure 13. Evolution of fault critical stiffness under the influence of different fault aperture parameters. (a) Evolution of permeability of the fault. (b) Evolution of fault critical stiffness and its normal stiffness component.

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Figure 4. Evolution of Coulomb stress within the fault core during fluid injection.xlsx

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Figure 4. Evolution of Coulomb stress within the fault core during fluid injection. (a) Evolution of normal stress, pore pressure, effective stress, and the rate of effective stress change in the fault core. (b) Variation of shear stress, peak shear strength, and the difference between them in the fault.

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Figure 5. Components that affect the evolution of critical stiffness in response to fluid injection, including effective stress magnitude, r.xlsx

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Figure 5. Components that affect the evolution of critical stiffness in response to fluid injection, including effective stress magnitude

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Figure 6. Comparison of fault critical stiffness under different conditions.xlsx

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Figure 6. Comparison of fault critical stiffness under different conditions.

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Figure 7. Laboratory injection induced fault slip data, calculated critical stiffnesses and fault-normal stiffness components configuration.xlsx

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Figure 7. Laboratory injection induced fault slip data, calculated critical stiffnesses and fault-normal stiffness components configuration.

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Figure 9. Comparison of fault critical stiffness evolution under four different production strategies.xlsx

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Figure 9. Comparison of fault critical stiffness evolution under four different production strategies.

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Figure S1. Evolution of frictional parameters.xlsx

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Figure S1. Evolution of frictional parameters (a) a, (b) b, and (c) d_c from four different shear stiffness conditions in Eijsink's experiments based on the Slip-law. The analysis of the evolution of frictional parameters demonstrates that varying normal stiffness significantly affects these frictional parameters.

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Figure S2. Evolution of the difference between shear stress and peak shear strength of fault core for different production strategies.xlsx

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Figure S2. Evolution of the difference between shear stress and peak shear strength of fault core for different production strategies

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Figure S3. Evolution of the difference between shear stress and peak shear strength of fault core for three different well shut-in strategie.xlsx

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Figure S3. Evolution of the difference between shear stress and peak shear strength of fault core for three different well shut-in strategies.

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Figure S4. Evolution of the difference between shear stress and peak shear strength of fault core for three different fault locations..xlsx

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Figure S4. Evolution of the difference between shear stress and peak shear strength of fault core for three different fault locations.

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Numerical models and codes.docx

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The numerical models and codes of "Impact of Fault-Normal Stiffness on Frictional Slip Instability in Induced Seismicity"

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