| Title | High-Resolution Seismic Imaging for Geothermal Exploration at Eleven-Mile Canyon in Nevada |
|---|---|
| Authors | Miao ZHANG, Lianjie HUANG, Kai GAO, Yunsong HUANG, and Andrew SABIN |
| Year | 2018 |
| Conference | Stanford Geothermal Workshop |
| Keywords | Seismic Imaging, Eleven-Mile Canyon |
| Abstract | U.S. Navy Geothermal Program acquired seismic data along five lines at Eleven-Mile Canyon in Nevada for geothermal exploration. The data contains significant ground-roll noise and reflection signals are week, resulting in a great challenge to image subsurface structures. We successfully remove the ground-roll noise using our newly developed wavenumber-adaptive frequency-space filtering technique. We then build anisotropic models along the five lines using anisotropic full-waveform inversion of the seismic data. Finally, we perform anisotropic reverse-time migration using the anisotropic models and our newly processed seismic data to obtain high-resolution subsurface images at Eleven-Mile Canyon. Our anisotropic full-waveform inversion and anisotropic reverse-time migration provide high-resolution images at Eleven-Mile Canyon, and these images could be useful for geothermal exploration in combination with imaging results of other geophysical data. |