Scientific Aviation, 3335 Airport Road, Boulder, CO 80301, USA. Department of Land, Air, and Water Resources, University of California-Davis, Davis, CA 95616, USA.
Research and Development Division, California Energy Commission, Sacramento, CA 95814, USA.
Science. 2016 Mar 18;351(6279):1317-20. doi: 10.1126/science.aaf2348. Epub 2016 Feb 25.
Single-point failures of natural gas infrastructure can hamper methane emission control strategies designed to mitigate climate change. The 23 October 2015 blowout of a well connected to the Aliso Canyon underground storage facility in California resulted in a massive release of natural gas. Analysis of methane and ethane data from dozens of plume transects, collected during 13 research-aircraft flights between 7 November 2015 and 13 February 2016, shows atmospheric leak rates of up to 60 metric tons of methane and 4.5 metric tons of ethane per hour. At its peak, this blowout effectively doubled the methane emission rate of the entire Los Angeles basin and, in total, released 97,100 metric tons of methane to the atmosphere.
单点故障的天然气基础设施可能会阻碍旨在减轻气候变化的甲烷排放控制策略。2015 年 10 月 23 日，加利福尼亚州阿利索峡谷地下储存设施连接的一口油井发生井喷，导致大量天然气泄漏。在 2015 年 11 月 7 日至 2016 年 2 月 13 日期间的 13 次研究飞机飞行中，对数十个羽流横截线上的甲烷和乙烷数据进行了分析，结果表明，大气泄漏率高达每小时 60 公吨甲烷和 4.5 公吨乙烷。在高峰期，这次井喷使整个洛杉矶盆地的甲烷排放率有效增加了一倍，总共向大气中释放了 97100 公吨甲烷。
