Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments

Yu, Jiayi; Eijsink, Agathe; Elsworth, Derek

doi:10.15121/1997264

Title: Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments

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Abstract

Included are results from shear reactivation experiments on laboratory faults pre-loaded close to failure and reactivated by the injection of fluid into the fault. The sample comprises a single-inclined-fracture (SIF) transecting a cylindrical sample of Westerly granite. All experiments are conducted at ambient temperature and follow a similar protocol: (i) application of confining stresses (3MPa) on the fault fully saturated with DI water, (ii) shear-mobilization through the increase of axial loading at a constant displacement rate until a post-peak steady-state condition is reached, (iii) reduction of axial loading and related shear stress to a prescribed fraction of the peak steady-state frictional strength (typically 60% to 90%, representing intermediate to high magnitudes) and (iv), fault reactivation triggered by a stepwise increase of pore pressure on the fault in 0.1 MPa increments held constant for 1-5 minutes. Mechanical data from three ISCO pumps connected to a Temco pressure vessel measure axial, confining, and fault-related parameters, including fluid pressure (kPa), fluid flow rate (mL/min), and axial displacement (mm). See included code for initial data analysis and visualization for select experiments. Resource names represent experiment numbers found in the "Read Me" file, which describes each experimental setup and parameters.

Authors:

Yu, Jiayi; Eijsink, Agathe; Elsworth, Derek

Penn State University

Publication Date:: Sat Jul 01 00:00:00 EDT 2023

Other Number(s):: 1520

DOE Contract Number:: EE0007080

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

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

Collaborations:: Penn State University

Subject:: 15 GEOTHERMAL ENERGY; EGS; Induced Seismicity; MATLAB; Utah FORGE; Westerly granite; code; energy; fault activation; flow rate; fluid; injection test; pressure; raw data; reactivation; shear

OSTI Identifier:: 1997264

DOI:: https://doi.org/10.15121/1997264

Citation Formats


                    Yu, Jiayi, Eijsink, Agathe, and Elsworth, Derek. Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments.  United States: N. p., 2023. 
        Web.  doi:10.15121/1997264.

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                    Yu, Jiayi, Eijsink, Agathe, & Elsworth, Derek. Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments.  United States.  doi:https://doi.org/10.15121/1997264

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                    Yu, Jiayi, Eijsink, Agathe, and Elsworth, Derek. 2023.  
"Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments".  United States.  doi:https://doi.org/10.15121/1997264.  https://www.osti.gov/servlets/purl/1997264. Pub date:Sat Jul 01 00:00:00 EDT 2023

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@article{osti_1997264,

  title        = {Utah FORGE: Fault Reactivation Through Fluid Injection Induced Seismicity Laboratory Experiments},

  author       = {Yu, Jiayi and Eijsink, Agathe and Elsworth, Derek},

  abstractNote = {Included are results from shear reactivation experiments on laboratory faults pre-loaded close to failure and reactivated by the injection of fluid into the fault. The sample comprises a single-inclined-fracture (SIF) transecting a cylindrical sample of Westerly granite. All experiments are conducted at ambient temperature and follow a similar protocol: (i) application of confining stresses (3MPa) on the fault fully saturated with DI water, (ii) shear-mobilization through the increase of axial loading at a constant displacement rate until a post-peak steady-state condition is reached, (iii) reduction of axial loading and related shear stress to a prescribed fraction of the peak steady-state frictional strength (typically 60% to 90%, representing intermediate to high magnitudes) and (iv), fault reactivation triggered by a stepwise increase of pore pressure on the fault in 0.1 MPa increments held constant for 1-5 minutes. Mechanical data from three ISCO pumps connected to a Temco pressure vessel measure axial, confining, and fault-related parameters, including fluid pressure (kPa), fluid flow rate (mL/min), and axial displacement (mm). See included code for initial data analysis and visualization for select experiments. Resource names represent experiment numbers found in the "Read Me" file, which describes each experimental setup and parameters.},

  doi          = {10.15121/1997264},

  journal      = {},

  number       = ,

  volume       = ,

  place        = {United States},

  year         = {Sat Jul 01 00:00:00 EDT 2023},

  month        = {Sat Jul 01 00:00:00 EDT 2023}

}

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DOI: https://doi.org/10.15121/1997264

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