Comprehensive aerial survey quantifies high methane emissions from the New Mexico Permian Basin
Comprehensive aerial survey quantifies high methane emissions from the New Mexico Permian Basin
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综合航空调查量化了新墨西哥州二叠纪盆地的高甲烷排放量
DOI：
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发表时间：
2021
期刊：
影响因子：
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通讯作者：
A. Brandt
中科院分区：
文献类型：
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作者：
Yuanlei Chen;Evan D. Sherwin;E. Berman;Brian B Jones;M. Gordon;Erin B. Wetherley;E. Kort;A. Brandt
限制石油和天然气（O&G）中导致气候变暖的甲烷的排放是短期气候效益的主要机会。我们使用独立验证的高光谱甲烷点源检测和量化系统，对新墨西哥州二叠纪盆地进行了全盆地范围的航空勘测，涵盖35，923平方公里、26，292口活跃威尔斯井和超过15，000公里的天然气管道。我们估计该地区的O&G甲烷总排放量为194（+72/-68，95%CI）公吨/小时（t/h），占天然气总产量的9.4%（+3.5%/-3.3%）。50%的观测排放来自持续平均排放率超过308 kg/h的大型排放源。这一结果强调了在估计区域O&G甲烷排放量时，通过全流域调查捕获低概率、高后果事件的重要性。
Limiting emissions of climate-warming methane from oil and gas (O&G) is a major opportunity for short-term climate benefits. We deploy a basin-wide airborne survey of the New Mexico Permian Basin, spanning 35,923 km^2, 26,292 active wells, and over 15,000 km of natural gas pipelines using an independently-validated hyperspectral methane point source detection and quantification system. We estimate total O&G methane emissions in this area at 194 (+72/-68, 95% CI) metric tonnes per hour (t/h), or 9.4% (+3.5%/-3.3%) of gross gas production. 50% of observed emissions come from large emission sources with persistence-averaged emission rates over 308 kg/h. This result emphasizes the importance of capturing low-probability, high-consequence events through basin-wide surveys when estimating regional O&G methane emissions.