超级排放石油和天然气甲来源的持续时间
Daniel H Cusworth1, Daniel M Bon2, Daniel J Varon3
1Carbon Mapper, 680 E Colorado Blvd, Pasadena, CA, USA. dan@carbonmapper.org.
Nature communications
|January 24, 2026
概括
石油和天然气盆地的超级排放甲事件通常是短暂但重要的. 频繁的空中监测是识别这些强有力的来源的关键,以有效地减轻风险.
科学领域:
- 环境科学 环境科学
- 大气化学 大气化学
- 石油和天然气行业的排放排放量
背景情况:
- 了解石油和天然气盆地中超级排放事件 (>100公斤/小时) 的持续时间对于准确的排放报告和制定有效的减排策略至关重要.
- 之前的研究缺乏关于这些高排放事件的时间动态的足够数据,这导致了潜在的低估总甲释放量.
研究的目的:
- 量化超级排放甲事件在新墨西哥珀米亚盆地的持续时间和影响.
- 将来自单个超级发射体事件的排放量与整个盆地平均估计值进行比较.
- 确定持久的超级发射源作为减缓的直接目标.
主要方法:
- 碳绘图器从2024年4月30日至5月17日对新墨西哥珀米亚盆地进行了空中调查.
- 调查覆盖了一个广的区域,包括井,压缩站,天然气加工厂和管道.
- 确定了500多个超级排放源,其中300个被反复观察;排放持续时间被限制并整合以估计总超级排放量.
主要成果:
- 检测到500多个超级发射甲源,其中300个被观察到多次.
- 单个排放事件通常持续至少2小时,18个来源在整个活动中持续发射.
- 据估计,超级排放者约占总流域排放量的50% (37-73%),与区域流量估计的差异相协调.
结论:
- 超级排放甲事件虽然可能是短暂的,但对石油和天然气盆地的总体排放有很大影响.
- 持久性超级排放者是减少甲排放的高优先目标.
- 频繁,广泛的监测对于准确评估甲排放和由这些罕见,高影响事件驱动的变化至关重要.
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