大规模的受控实验证明了石油和天然气设施中甲泄漏检测和维修计划的有效性
Jiayang Lyra Wang1,2, Brenna Barlow3, Wes Funk4
1Department of Petroleum and Geosystems Engineering, The University of Texas at Austin, Austin, Texas 78712, United States.
Environmental science & technology
|February 5, 2024
概括
泄漏检测和修复 (LDAR) 程序显著减少了石油和天然气运营中的甲泄漏. 坦克是主要的排放来源,有针对性的维修是成本有效缓解的关键.
科学领域:
- 环境科学 环境科学
- 能源政策 能源政策
- 大气化学 大气化学
背景情况:
- 石油和天然气运营中的甲泄漏给环境和经济带来了重大挑战.
- 泄漏检测和修复 (LDAR) 计划在全球范围内广泛实施,以减轻这些排放.
- 在规模上对LDAR计划有效性的实证评估对于优化减排战略至关重要.
研究的目的:
- 实证评估泄漏检测和修复 (LDAR) 计划在减少石油和天然气场所甲排放方面的有效性.
- 确定这些业务中甲排放的主要来源.
- 评估泄漏的持续性和修复对时间的影响.
主要方法:
- 一个大规模的,自下而上,随机的受控实地实验在加拿大红鹿市大约200个石油和天然气场所进行.
- 现场被分为治疗 (正在修复) 和对照组.
- 通过随着时间的推移监测标记设备来追踪泄漏持续性.
主要成果:
- 坦克被确定为排放的最大单一来源,占总量的近60%.
- 处理站点在修复后泄漏数量减少了大约50%.
- 控制站点的排放量减少了36%,这表明日常维护对重大泄漏的影响.
- 经过修复的漏洞表现出很高的持久性,保持不变,而未经修复的漏洞继续发射.
结论:
- 在减少石油和天然气运营中的甲泄漏方面,LDAR计划是有效的.
- 针对高排放源,特别是坦克和特定场地类型,对于具有成本效益的甲减排至关重要.
- 经过修复的泄漏的持续性强调了及时和彻底的修复过程的重要性.
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