通过特征,事件和过程方法对选定的CCS井的风险评估以及屏障效应的比较
Khizar Abid1, Catalin Teodoriu1, Muhammad Syafeeq Bin Ebining Amir2
1Mewbourne School of Petroleum and Geological Engineering, The University of Oklahoma, 100 East Boyd, Sarkeys Energy Building, Rm 1210, Norman, Oklahoma 73019, United States.
ACS omega
|October 7, 2024
概括
本研究介绍了碳捕获和封存 (CCS) 井的风险评估技术. 它将水泥,外,形成水和沉降确定为对二氧化碳储存完整性的关键风险.
科学领域:
- 地质工程是地质工程.
- 环境科学 环境科学
- 风险管理 风险管理
背景情况:
- 碳捕获和封存 (CCS) 对于减少大气二氧化碳至关重要.
- 长期将二氧化碳在地质层中是CCS成功的关键.
- 井的完整性至关重要,以确保安全的二氧化碳封存.
研究的目的:
- 开发和应用CCS井的风险评估技术.
- 识别可能损害CCS井完整性的关键元素.
- 评估不同井结构在减轻风险方面的有效性.
主要方法:
- 使用基于特征,事件和过程 (FEP) 的风险评估方法.
- 集成的FEP与相互作用矩阵,事件潜在矩阵 (IPM) 和因果图进行半定量分析.
- 在两个不同的虚构CCS井配置上进行了风险评估.
主要成果:
- 确定水泥和外是CCS井中最脆弱的组件.
- 形成水和地下沉降成为最重要的问题因素.
- 证明了井塞的数量和位置会影响风险水平.
结论:
- 开发的风险评估技术有效地识别了CCS井的漏洞.
- 水泥和外的完整性,以及形成水和沉降,需要仔细管理.
- 战略井设计,包括插头配置,可以显著提高二氧化碳储存安全性.
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