Satellite-based survey of extreme methane emissions in the Permian basin.

Satellite-based survey of extreme methane emissions in the Permian basin.
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二叠纪盆地极端甲烷排放的卫星调查。

DOI:
10.1126/sciadv.abf4507
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发表时间:
2021-06
期刊:
影响因子:
13.6
通讯作者:
Jacob DJ
Jacob DJ
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Irakulis-Loitxate I;Guanter L;Liu YN;Varon DJ;Maasakkers JD;Zhang Y;Chulakadabba A;Wofsy SC;Thorpe AK;Duren RM;Frankenberg C;Lyon DR;Hmiel B;Cusworth DH;Zhang Y;Segl K;Gorroño J;Sánchez-García E;Sulprizio MP;Cao K;Zhu H;Liang J;Li X;Aben I;Jacob DJ

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利用新的卫星技术,在二叠纪盆地探测到的极端甲烷羽流数量出人意料地高。工业排放在全球甲烷预算中扮演着重要角色。二叠纪盆地被认为是美国所有石油和天然气产区近一半的甲烷排放来源,但人们对甲烷的个别贡献者知之甚少,这是缓解甲烷排放的先决条件。我们使用2019年和2020年几天获得的一类新的卫星测量数据,对二叠纪甲烷源进行了第一次区域规模和高分辨率调查。我们发现了出乎意料的大量极端点源(37个排放速率为>500 kg/h−1的羽状物),占采样区域估计排放量的31%至53%。我们的分析表明,新设施是该地区的主要排放者,通常是由于燃烧作业效率低下(20%的探测)。这些结果对当前的做法提出了质疑,并对指导减排工作具有重要意义。
An unexpectedly high number of extreme methane plumes is detected in the Permian basin with new satellite technology. Industrial emissions play a major role in the global methane budget. The Permian basin is thought to be responsible for almost half of the methane emissions from all U.S. oil- and gas-producing regions, but little is known about individual contributors, a prerequisite for mitigation. We use a new class of satellite measurements acquired during several days in 2019 and 2020 to perform the first regional-scale and high-resolution survey of methane sources in the Permian. We find an unexpectedly large number of extreme point sources (37 plumes with emission rates >500 kg hour−1), which account for a range between 31 and 53% of the estimated emissions in the sampled area. Our analysis reveals that new facilities are major emitters in the area, often due to inefficient flaring operations (20% of detections). These results put current practices into question and are relevant to guide emission reduction efforts.
DOI: 10.5194/acp-21-6605-2021
发表时间: 2021-05-03
影响因子: 6.3
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