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oa Monitoring Pressure Communication for Fault-Stability Assessment at CO2 Storage Sites Using Distributed Fiber Optic Strain Sensing(DFOSS)
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 4th EAGE Workshop on Fiber Optic Sensing for Energy Applications, Aug 2024, Volume 2024, p.1 - 3
Abstract
In this study, distributed fiber optic strain sensing (DFOSS) was employed in a monitoring well with a depth of 750 meters within a Water-Alternating-Gas Injection field. Over 19 months, we monitored water production/ injection from various production layers at different depths and from different production wells at monitoring distances ranging from 1 to 5.5 kilometers. Our findings demonstrate successful strain capture using DFOSS, affirming its capability to monitor pressure communication within a 5.5-kilometer diameter area. This technology holds promise for CO2 storage site applications as a cost-effective tool, especially when deployed between the injector and adjacent faults within the area of review to evaluate faults stability and ensure CO2 injection sites safety.