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

Description

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.

Resources

Name Format Description Link
0 Initial data analysis and visualization for experiment number ZD1, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, zero displacement BC. https://gdr.openei.org/files/1520/JY_18_PS15.m
0 Initial data analysis and visualization for experiment number CSS4, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_5_PS7.m
0 Initial data analysis and visualization for experiment number CSS1, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_3_PS5.m
0 Initial data analysis and visualization for experiment number CSS2, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_4_PS6.m
0 Initial data analysis and visualization for experiment number CSS3, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_24_PS19.m
0 Initial data analysis and visualization for experiment number ZD2, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, zero displacement BC. https://gdr.openei.org/files/1520/JY_19_PS16.m
0 Literature review field data visualization. Depicts maximum seismic moments as a function of total injection volume from various sources. https://gdr.openei.org/files/1520/Literature_review_field_data.m
0 Initial data analysis and visualization for normal stiffness measurements on a 90-degree cut sample https://gdr.openei.org/files/1520/Normal_stiffness.m
0 Initial data analysis and visualization for system resistance measurements. https://gdr.openei.org/files/1520/System_resistance.m
53 Raw data from literature review. Contains maximum seismic moments and injection volumes from various sources https://gdr.openei.org/files/1520/Literature%20data.xlsx
36 Descriptions of experimental setups and individual test information https://gdr.openei.org/files/1520/Read%20me.pptx
47 Raw data for experiment number ZD2, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, zero displacement BC. https://gdr.openei.org/files/1520/JY_19_PS16_data.txt
47 Raw data for experiment number JY_FR_1, setup #2: Defining the role of injection rate. Pressure stepping, constant shear stress, flow rate control. https://gdr.openei.org/files/1520/JY_FR_1.txt
47 Raw data for experiment number JY_FR_2, setup #2: Defining the role of injection rate. Pressure stepping, constant shear stress, flow rate control. https://gdr.openei.org/files/1520/JY_FR_2.txt
47 Raw data for experiment number JY_FR_3, setup #2: Defining the role of injection rate. Pressure stepping, constant shear stress, flow rate control. https://gdr.openei.org/files/1520/JY_FR_3.txt
47 Raw data for experiment number JY_FR_4, setup #2: Defining the role of injection rate. Pressure stepping, constant shear stress, flow rate control. https://gdr.openei.org/files/1520/JY_FR_4.txt
47 Raw data for experiment number JY_FR_5, setup #2: Defining the role of injection rate. Pressure stepping, constant shear stress, flow rate control. https://gdr.openei.org/files/1520/JY_FR_5.txt
47 Raw data for experiment number JY_FR_O1, setup #3. Pressure stepping, constant shear stress, flow rate control https://gdr.openei.org/files/1520/JY_FR_O1.txt
47 Raw data for experiment number JY_FR_O3, setup #3. Pressure stepping, constant shear stress, flow rate control https://gdr.openei.org/files/1520/JY_FR_O3.txt
47 System resistance measurement data. https://gdr.openei.org/files/1520/JY_system_resistance.txt
47 Raw data for experiment number JY_FR_O2, setup #3. Pressure stepping, constant shear stress, flow rate control https://gdr.openei.org/files/1520/JY_FR_O2.txt
47 Normal stiffness data for a 90-degree cut sample. https://gdr.openei.org/files/1520/JY_normal_stiffness_test2.txt
47 Raw data for experiment number CSS2, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_4_PS6_data.txt
47 Raw data for experiment number CSS4, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_5_PS7_data.txt
47 Raw data for experiment number CSS3, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_24_PS19.txt
47 Raw data for experiment number CSS1, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, constant shear stress. https://gdr.openei.org/files/1520/JY_3_PS5_data.txt
47 Raw data for experiment number ZD1, setup #1: Defining the role of critical stress on M-V scaling relation. Pressure stepping, zero displacement BC. https://gdr.openei.org/files/1520/JY_18_PS15_data.txt

Tags

  • fluid
  • egs
  • utah-forge
  • injection-test
  • matlab
  • pressure
  • reactivation
  • westerly-granite
  • induced-seismicity
  • code
  • shear
  • flow-rate
  • raw-data
  • energy
  • fault-activation

Topics

Categories