Seismic Analysis of Spatio-Temporal Fracture Generation During EGS Resource Development - Deviatoric MT, Fracture Network, and Final Report

Description

This submission contains 167 deviatoric moment tensor (MT) solutions for the seismicity observed two years prior and three years post start of injection activities at The Geysers Prati 32 EGS Demonstration. Also included is a statistical representation of the properties of 751 fractures derived from the analysis of seismicity observed two years prior and three years post start of injection activities at The Geysers Prati 32 EGS Demonstration Project. The locations of the fractures are taken from microseismic hypocenters, the fracture areas are derived from moment magnitudes via scaling relationships, and the azimuths (sigma 1) and dips (sigma 3) are derived from the results of stress analyses.

Resources

Name Format Description Link
53 This file contains a statistical representation of the coordinates of 751 fractures derived from the analysis of seismicity at The Geysers Prati 32 EGS Demonstrations Site. https://gdr.openei.org/files/1091/Fracture%20Network.xlsx
8 This file contains 167 deviatoric moment tensor (MT) solutions for the seismicity observed two years prior and three years post start of injection activities. https://gdr.openei.org/files/1091/Deviatoric%20MT%20Catalog.csv
21 Final report including details about the temporal analysis of fluid injection, source parameter determination, seismic broadband data processing, scaling relationships for Prati-32 seismicity and 3D fracture network, aleatory and epistemic uncertainty of double-difference Wadati method, spatial analysis of fluid injection, and in-situ stress estimation. https://www.osti.gov/biblio/1479656

Tags

  • induced
  • location
  • hypocenters
  • strain
  • geophysics
  • microseismic
  • microseismicity
  • ca
  • inversion
  • egs
  • geysers
  • analysis
  • final-report
  • moment
  • catalog
  • event
  • seismicity
  • faulting
  • tensor
  • earthquake
  • monitoring
  • california
  • deviatoric-mt-solutions
  • injection
  • fracture
  • shear
  • stimulation
  • fracture-network
  • seismic
  • hydraulic
  • deviatoric
  • fault
  • passive
  • the-geysers
  • network
  • geophysical
  • stress
  • fracture-size
  • geothermal
  • high-temperature-reservoir
  • energy
  • fracture-orientation

Topics

Categories