Microseismicity Observation and Structure Characterization at Cape Modern, Utah
Description:
To prepare the new stimulation and exploration of geothermal resources at Cape Modern, Utah, we deploy seismometers, test noise level, and refine velocity models. Shallow boreholes (a few tens of meters) help to improve the signal-to-noise ratio with combined with different types of sensors such as surface nodal sensors. We numerically simulate seismic wavefields generated by microseismicity using a realistic velocity model and noise level to understand our monitoring capabilities, which helps us to understand the capability of our array for seismicity characterization and magnitude completeness. Background seismicity ratio before stimulation with the new seismometers will be discussed. The velocity model are refined using available active seismic surveys at the Utah FORGE area, which is a neighbor geothermal field to the Cape Modern site, using full-waveform inversion. The updated velocity model has a better shallow subsurface model, especially in the sedimentary layers, to constrain the location of microseismic events.
Session: Seismic Monitoring, Modelling and Management Needed for Geothermal Energy and Geologic Carbon Storage [Poster Session]
Type: Poster
Date: 5/2/2024
Presentation Time: 08:00 AM (local time)
Presenting Author: Nori
Student Presenter: No
Invited Presentation:
Authors
Nori Nakata Presenting Author Corresponding Author nnakata@mit.edu Lawrence Berkeley National Laboratory |
Sin-Mei Wu a06859a35@gmail.com Lawrence Berkeley National Laboratory |
Chet Hopp chopp@lbl.gov Lawrence Berkeley National Laboratory |
Michelle Robertson MCRobertson@lbl.gov Lawrence Berkeley National Laboratory |
Yunha Jung YunhaJung@lbl.gov Jeonbuk National University |
Sea-Eun Park world263@naver.com Jeonbuk National University |
Ju-Won Oh juwon24@jbnu.ac.kr Jeonbuk National University |
Sireesh Dadi sireesh.dadi@fervoenergy.com Fervo Energy |
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Microseismicity Observation and Structure Characterization at Cape Modern, Utah
Session
Seismic Monitoring, Modelling and Management Needed for Geothermal Energy and Geologic Carbon Storage