A Cost-Effective GCS Monitoring Approach Using Localized Seismic Waves
Description:
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
Date: 5/2/2024
Presentation Time: 08:00 AM (local time)
Presenting Author: Yingcai
Student Presenter: No
Invited Presentation:
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
A Cost-Effective GCS Monitoring Approach Using Localized Seismic Waves
Session
Seismic Monitoring, Modelling and Management Needed for Geothermal Energy and Geologic Carbon Storage