A Cost-Effective GCS Monitoring Approach Using Localized Seismic Waves
As geological carbon storage (GCS) is being adopted worldwide, monitoring possible CO2 migration in the subsurface is needed to ensure conformance and containment. A scalable turnkey solution is favored over repeated dense data acquisition (4D seismic) for GCS monitoring. Expensive time-lapse 3D seismic monitoring has been used in CO2-enhanced oil recovery (EOR) fields, but its use in GCS is not economically feasible. We propose a cost-effective GCS monitoring approach using localized seismic waves and permanent source arrays. Given the spatially finite nature of the localized wave, we only need a few geophones on the surface to record scattered localized seismic wavefields. To quantify the amount of CO2 using time-lapse changes of localized seismic waves, we conduct lab measurements of the P-wave velocity and density for supercritical CO2-saturated brine under various pressure-temperature conditions and a fluid substitution equation. Our monitoring approach using localized seismic waves could be a turnkey solution to cost-effective, long-term GCS monitoring.
Session: Seismic Monitoring, Modelling and Management Needed for Geothermal Energy and Geologic Carbon Storage [Poster Session]
Type: Poster
Room: Exhibit Hall
Date: 5/2/2024
Presentation Time: 08:00 AM (local time)
Presenting Author: Yingcai Zheng
Student Presenter: No
Additional Authors
Yingcai Zheng Presenting Author Corresponding Author yzheng12@uh.edu University of Houston |
Min Sun msun@central.uh.edu University of Houston |
Lianjie Huang ljh@lanl.gov Los Alamos National Laboratory |
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A Cost-Effective GCS Monitoring Approach Using Localized Seismic Waves
Session
Seismic Monitoring, Modelling and Management Needed for Geothermal Energy and Geologic Carbon Storage
Description