1887

Abstract

Summary

CO2 sequestration well was drilled in a carbonate saline aquifer in onshore Abu Dhabi. The MMV plan included DAS VSP monitoring program which consists of Zero-Offset VSPs every month, and repeat Walkaway and 3D VSPs after one month then after every four months of CO2 injection. Zero-Offset VSP corridor stacks showed a clear time delay (i.e. velocity decrease) below the top of the perforations as injected CO2 volumes increase every month. 3D VSP processing time-lapse analysis detected similar time delay in the injection zone as observed by Zero-Offset VSPs, showing spatial CO2 plume extension.

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/content/papers/10.3997/2214-4609.2025641027
2025-09-29
2026-02-19
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References

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