Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment

Roseboom, Matthew; Elsworth, Derek; Eijsink, Agathe; Yu, Jiayi; Marone, Chris; Shokouhi, Parisa; Riviere, Jacques; Wang, Junpeng

doi:10.15121/2429443

Title: Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment

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Abstract

Included are experimental data recorded from shear experiments that specifically explore the link between fluid-injection rate and seismic moment resulting from shear reactivation of laboratory faults. Raw mechanical data from three experiments are included alongside corresponding MATLAB scripts that import and plot the data, as well as use it to calculate shear and normal stress. Experiments are performed on 2.5-3 inch long granitoid cores from the Utah FORGE EGS demonstration site, containing a single inclined fracture with small-scale roughness added to the fracture surface. The raw data included here were recorded from an aluminum triaxial pressure vessel (TEMCO) configured with three independent servo-controlled pumps, with distilled water used as the working fluid. The pumps control confining pressure, upstream pore pressure, and axial pressure, with each pump connected to a LabView interface to record applied pressures, cumulative injected water volumes, and pump flow rates. The downstream outlet from the fracture is closed to allow pressurization, which is measured by an external pressure transducer. A linear variable differential transformer (LVDT) attached to the axial piston measures axial displacement, from which we calculate shear displacement along the fracture. Additionally, P-wave transducers are used to record acoustic signatures, where acoustic emission events and maximummore »« less

Authors:

Roseboom, Matthew; Elsworth, Derek; Eijsink, Agathe; Yu, Jiayi; Marone, Chris; Shokouhi, Parisa; Riviere, Jacques; Wang, Junpeng

Pennsylvania State University

Publication Date:: Tue Nov 07 04:00:00 UTC 2023

Other Number(s):: 1625

DOE Contract Number:: EE0007080

Research Org.:: DOE Geothermal Data Repository; Pennsylvania State University

Sponsoring Org.:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Geothermal Technologies Program (EE-4G)

Collaborations:: Pennsylvania State University

Subject:: 15 GEOTHERMAL ENERGY; EGS; MATLAB; TEMCO; Utah FORGE; along-fault pressure; axial pressure; code; confining pressure; constant shear stress; core experiment; energy; fracture; geomechanics; geophysics; geothermal; induced seismicity; injection rate; pore pressure; raw data; seismic moment; shear; shear displacement; shear experiments

OSTI Identifier:: 2429443

DOI:: https://doi.org/10.15121/2429443

Citation Formats


                    Roseboom, Matthew, Elsworth, Derek, Eijsink, Agathe, Yu, Jiayi, Marone, Chris, Shokouhi, Parisa, Riviere, Jacques, and Wang, Junpeng. Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment.  United States: N. p., 2023. 
        Web.  doi:10.15121/2429443.

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                    Roseboom, Matthew, Elsworth, Derek, Eijsink, Agathe, Yu, Jiayi, Marone, Chris, Shokouhi, Parisa, Riviere, Jacques, & Wang, Junpeng. Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment.  United States.  doi:https://doi.org/10.15121/2429443

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                    Roseboom, Matthew, Elsworth, Derek, Eijsink, Agathe, Yu, Jiayi, Marone, Chris, Shokouhi, Parisa, Riviere, Jacques, and Wang, Junpeng. 2023.  
"Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment".  United States.  doi:https://doi.org/10.15121/2429443.  https://www.osti.gov/servlets/purl/2429443. Pub date:Tue Nov 07 04:00:00 UTC 2023

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@article{osti_2429443,

  title        = {Utah FORGE: Fault Shear Reactivation Experimental Data for Fluid Injection-Rate Controls on Seismic Moment},

  author       = {Roseboom, Matthew and Elsworth, Derek and Eijsink, Agathe and Yu, Jiayi and Marone, Chris and Shokouhi, Parisa and Riviere, Jacques and Wang, Junpeng},

  abstractNote = {Included are experimental data recorded from shear experiments that specifically explore the link between fluid-injection rate and seismic moment resulting from shear reactivation of laboratory faults. Raw mechanical data from three experiments are included alongside corresponding MATLAB scripts that import and plot the data, as well as use it to calculate shear and normal stress. Experiments are performed on 2.5-3 inch long granitoid cores from the Utah FORGE EGS demonstration site, containing a single inclined fracture with small-scale roughness added to the fracture surface. The raw data included here were recorded from an aluminum triaxial pressure vessel (TEMCO) configured with three independent servo-controlled pumps, with distilled water used as the working fluid. The pumps control confining pressure, upstream pore pressure, and axial pressure, with each pump connected to a LabView interface to record applied pressures, cumulative injected water volumes, and pump flow rates. The downstream outlet from the fracture is closed to allow pressurization, which is measured by an external pressure transducer. A linear variable differential transformer (LVDT) attached to the axial piston measures axial displacement, from which we calculate shear displacement along the fracture. Additionally, P-wave transducers are used to record acoustic signatures, where acoustic emission events and maximum amplitudes are compared against seismic moment and shear slip velocity. Fluid injection rates range between 0.05 mL/min, 0.25 mL/min, and 0.75 mL/min for each experiment. Along-fault pressure distributions are progressively less uniform as injection rates increase, representing a switch from steady-state to transient conditions. Triggered shear displacement is used as a proxy for seismic moment and is indexed against cumulative injection volume and rate. Each experiment is performed under constant shear stress conditions, and the sample is fully saturated with DI water. Axial and confining stresses are applied to 3 MPa through pressure-stepping in 500 kPa increments. The pore pressure is held constant at 200 kPa prior to initiating the experiment, and initial axial displacement is recorded. The axial stress is then increased to initiate shear mobilization during the loading phase (run-in) until a peak steady state is achieved. The initial shear stress is reduced to approximately 80% of the peak shear stress by decreasing the axial stress, then held constant for the duration of each experiment.},

  doi          = {10.15121/2429443},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Tue Nov 07 04:00:00 UTC 2023},

  month        = {Tue Nov 07 04:00:00 UTC 2023}

}

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DOI: https://doi.org/10.15121/2429443

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