Anisotropy as an indicator for reservoir changes: example from the Rotokawa and Ngatamariki geothermal fields, New Zealand

• Published in: Geophysical journal international Vol. 220; no. 1
• Main Authors: Mroczek, Stefan, Savage, Martha K., Hopp, Chet, Sewell, Steven M.
• Format: Journal Article
• Language: English
• Published: United States Oxford University Press 24.09.2019
• Subjects: body waves; GEOSCIENCES; induced seismicity; New Zealand; seismic anisotropy; statistical methods

We investigate the relation between geothermal field production and fracture density and orientation in the Ngatamariki and Rotokawa geothermal fields, located in the Taupo Volcanic Zone, New Zealand using shear wave splitting (SWS). We determine the SWS parameters for 17 702 microseismic events acr...