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Decarbonization

Study Investigates Seismic Monitoring for Carbon Storage Leak Detection

The authors of this paper investigate the application of two seismic monitoring methods in monitoring carbon leaks: full waveform inversion and reverse-time migration.

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February 1, 2024
Journal of Petroleum Technology
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Fig. 1—(a) Initial velocity model without carbon leakage; (b) true velocity model with carbon leakage.
Fig. 1—(a) Initial velocity model without carbon leakage; (b) true velocity model with carbon leakage.
Source: IPTC 22980.

In the complete paper, marine seismic data processing is investigated as a tool for monitoring possible leakages in geological carbon storage. Because of the great importance of storage permanence, a precise leakage-monitoring strategy is crucial. The proficiency of seismic monitoring solutions for leakage monitoring can be affected by shallower layers as a result of structure, seismic wave attenuation, and leak size. The authors explore two popular seismic monitoring methods used in this application in different scenarios: full waveform inversion (FWI) and reverse-time migration (RTM).

Introduction

Among the various carbon capture and storage (CCS) options, underground storage in saline aquifers is the best-understood solution.

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