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

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. 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.

Data and Resources

Metadata Source

Additional Info

Field Value
Citation Date 2018-06-30T00:00:00-06:00

Harvest Information

Original ID f0000002-58cc-4372-a567-000000001091
Index Date 2019-02-12T15:36:28-07:00
Original Format ISO-USGIN
Original Version 1.2

Author

Name Roland Gritto
Position primary contact
Organization Array Information Technology
Email roland.gritto@arrayinfotech.com

Geographic Extent

North Bound 39
South Bound 38.6
East Bound -122.6
West Bound -123