Dataset

Fluid injection experiments on critically stressed sawcut faults in low-permeability granite samples

Yinlin, Ji; Wang, Lei; Hofmann, Hannes; Kwiatek, Grzegorz ; Dresen, Georg;

2022 || GFZ Data Services

Earthquakes associated with fluid injection in various geo-energy settings, such as shale gas and deep geothermal energy, have shelved many projects with great potential. However, the injection-rate dependence of earthquake nucleation length, i.e., the slowly slipping (creeping) fault length in preparation for a subsequent earthquake (Kaneko & Lapusta, 2008), remains elusive. In this study, we take a step towards this issue by performing fluid injection experiments on low-permeability granite samples containing a critically stressed sawcut fault at different local injection rates (0.2 mL/min and 0.8 mL/min) and confining pressures (31 MPa and 61 MPa) (c. f., Ji & Wu, 2017; Wang et al., 2020). An array of local strain gauges and acoustic emission (AE) hypocenter locations were used to monitor the precursory slip of critically stressed faults before injection-induced stick-slip failure (c. f., Passelègue et al., 2020; Wang et al., 2020). The nucleation length was determined for each injection-induced stick-slip event, and its dependence on effective normal stress and injection rate was explored. Herein, we compile the processed data obtained from the experiments in four Excel worksheets. The full description of the methods is provided in Ji et al. (2022).

Originally assigned keywords

Corresponding MSL vocabulary keywords

MSL enriched keywords

MSL enriched sub domains	rock and melt physics analogue modelling of geologic processes
Source	http://dx.doi.org/10.5880/gfz.4.8.2022.011
Source publisher	GFZ Data Services
DOI	10.5880/gfz.4.8.2022.011
Authors	Yinlin, Ji 0000-0001-9787-7164 GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei 0000-0001-6784-4572 GFZ German Research Centre for Geosciences, Potsdam, Germany; Hofmann, Hannes 0000-0003-0778-6141 GFZ German Research Centre for Geosciences, Potsdam, Germany; Kwiatek, Grzegorz 0000-0003-1076-615X GFZ German Research Centre for Geosciences, Potsdam, Germany; Dresen, Georg 0000-0002-3737-2858 GFZ German Research Centre for Geosciences, Potsdam, Germany;
Contributors	Yinlin, Ji ContactPerson 0000-0001-9787-7164 GFZ German Research Centre for Geosciences, Potsdam, Germany; Yinlin, Ji DataCollector 0000-0001-9787-7164 GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei ContactPerson 0000-0001-6784-4572 GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei DataCollector 0000-0001-6784-4572 GFZ German Research Centre for Geosciences, Potsdam, Germany; Hofmann, Hannes Researcher 0000-0003-0778-6141 GFZ German Research Centre for Geosciences, Potsdam, Germany; Kwiatek, Grzegorz Researcher 0000-0003-1076-615X GFZ German Research Centre for Geosciences, Potsdam, Germany; Dresen, Georg Researcher 0000-0002-3737-2858 GFZ German Research Centre for Geosciences, Potsdam, Germany; Yinlin, Ji ContactPerson GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei ContactPerson GFZ German Research Centre for Geosciences, Potsdam, Germany;
References	Ji, Y., Wang, L., Hofmann, H., Kwiatek, G., & Dresen, G. (2022). High‐Rate Fluid Injection Reduces the Nucleation Length of Laboratory Earthquakes on Critically Stressed Faults in Granite. Geophysical Research Letters, 49(23). Portico. https://doi.org/10.1029/2022gl100418 10.1029/2022GL100418 IsSupplementTo Ji, Y., & Wu, W. (2020). Injection-driven fracture instability in granite: Mechanism and implications. Tectonophysics, 791, 228572. https://doi.org/10.1016/j.tecto.2020.228572 10.1016/j.tecto.2020.228572 Cites Kaneko, Y., & Lapusta, N. (2008). Variability of earthquake nucleation in continuum models of rate‐and‐state faults and implications for aftershock rates. Journal of Geophysical Research: Solid Earth, 113(B12). Portico. https://doi.org/10.1029/2007jb005154 10.1029/2007jb005154 Cites Passelègue, F. X., Almakari, M., Dublanchet, P., Barras, F., Fortin, J., & Violay, M. (2020). Initial effective stress controls the nature of earthquakes. Nature Communications, 11(1). https://doi.org/10.1038/s41467-020-18937-0 10.1038/s41467-020-18937-0 Cites Wang, L., Kwiatek, G., Rybacki, E., Bohnhoff, M., & Dresen, G. (2020). Injection‐Induced Seismic Moment Release and Laboratory Fault Slip: Implications for Fluid‐Induced Seismicity. Geophysical Research Letters, 47(22). Portico. https://doi.org/10.1029/2020gl089576 10.1029/2020GL089576 Cites
Contact	Wang, Lei GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei GFZ German Research Centre for Geosciences, Potsdam, Germany; Wang, Lei GFZ German Research Centre for Geosciences, Potsdam, Germany;
Citation	Yinlin, J., Wang, L., Hofmann, H., Kwiatek, G., & Dresen, G. (2022). Fluid injection experiments on critically stressed sawcut faults in low-permeability granite samples [Data set]. GFZ Data Services. https://doi.org/10.5880/GFZ.4.8.2022.011