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Intermittency of Large Methane Emitters in the Permian Basin
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2021-06-02 , DOI: 10.1021/acs.estlett.1c00173 Daniel H. Cusworth 1 , Riley M. Duren 1, 2 , Andrew K. Thorpe 1 , Winston Olson-Duvall 1 , Joseph Heckler 3 , John W. Chapman 1 , Michael L. Eastwood 1 , Mark C. Helmlinger 1 , Robert O. Green 1 , Gregory P. Asner 3 , Philip E. Dennison 4 , Charles E. Miller 1
Environmental Science & Technology Letters ( IF 8.9 ) Pub Date : 2021-06-02 , DOI: 10.1021/acs.estlett.1c00173 Daniel H. Cusworth 1 , Riley M. Duren 1, 2 , Andrew K. Thorpe 1 , Winston Olson-Duvall 1 , Joseph Heckler 3 , John W. Chapman 1 , Michael L. Eastwood 1 , Mark C. Helmlinger 1 , Robert O. Green 1 , Gregory P. Asner 3 , Philip E. Dennison 4 , Charles E. Miller 1
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The Permian Basin is the largest and fastest growing oil and gas (O&G) producing region in the United States. We conducted an extensive airborne campaign across the majority of the Permian in September–November, 2019 with imaging spectrometers to quantify strong methane (CH4) point source emissions at facility-scales, including high frequency sampling to evaluate intermittency. We identified 1100 unique and heavy-tailed distributed sources that were sampled at least 3 times (average 8 times), showing 26% average persistence. Sources that were routinely persistent (50–100%) make up only 11% of high emitting infrastructure but 29% of quantified emissions from this population, potentially indicative of leaking equipment that merits repair. Sector attribution of plumes shows that 50% of detected emissions result from O&G production, 38% from gathering and boosting, and 12% from processing. This suggests a 20% relative shift from upstream to midstream compared to other US O&G basins for large emitters. Simultaneous spectroscopic identification of flares found that 12% of detected Permian CH4 plume emissions were associated with either active or inactive flares. Frequent, high-resolution monitoring is necessary to accurately understand intermittent methane superemitters across large, heterogeneous O&G basins and efficiently pinpoint persistent leaks for mitigation.
中文翻译：
二叠纪盆地大型甲烷排放源的间歇性
二叠纪盆地是美国最大、增长最快的石油和天然气 (O&G) 产区。我们于 2019 年 9 月至 11 月在二叠纪的大部分地区进行了广泛的空中运动，使用成像光谱仪量化强甲烷（CH 4) 设施规模的点源排放，包括评估间歇性的高频采样。我们确定了 1100 个独特的重尾分布式源，这些源至少被采样了 3 次（平均 8 次），平均持久性为 26%。通常持续存在的源 (50-100%) 仅占高排放基础设施的 11%，但占该人群量化排放的 29%，这可能表明设备存在泄漏，值得维修。烟羽的行业归因显示，50% 的检测排放来自油气生产，38% 来自收集和增压，12% 来自加工。这表明与美国其他大型排放源的油气盆地相比，从上游到中游的相对转变为 20%。对耀斑的同步光谱识别发现 12% 的检测到的二叠纪 CH 4羽流排放与活跃或不活跃的耀斑有关。频繁、高分辨率的监测对于准确了解大型异构油气盆地中的间歇性甲烷超级排放源并有效查明持续泄漏以进行缓解是必要的。
更新日期：2021-07-13
中文翻译：
二叠纪盆地大型甲烷排放源的间歇性
二叠纪盆地是美国最大、增长最快的石油和天然气 (O&G) 产区。我们于 2019 年 9 月至 11 月在二叠纪的大部分地区进行了广泛的空中运动，使用成像光谱仪量化强甲烷（CH 4) 设施规模的点源排放，包括评估间歇性的高频采样。我们确定了 1100 个独特的重尾分布式源，这些源至少被采样了 3 次（平均 8 次），平均持久性为 26%。通常持续存在的源 (50-100%) 仅占高排放基础设施的 11%，但占该人群量化排放的 29%，这可能表明设备存在泄漏，值得维修。烟羽的行业归因显示，50% 的检测排放来自油气生产，38% 来自收集和增压，12% 来自加工。这表明与美国其他大型排放源的油气盆地相比，从上游到中游的相对转变为 20%。对耀斑的同步光谱识别发现 12% 的检测到的二叠纪 CH 4羽流排放与活跃或不活跃的耀斑有关。频繁、高分辨率的监测对于准确了解大型异构油气盆地中的间歇性甲烷超级排放源并有效查明持续泄漏以进行缓解是必要的。
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