China-Pakistan Belt and Road Joint Laboratory on Smart Disaster Prevention of Major Infrastructures, Southeast University, Nanjing, 210096, China.
Data-Driven EnviroLab, School of Public Policy, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
Sci Data. 2023 Aug 24;10(1):563. doi: 10.1038/s41597-023-02478-4.
Crude oil pipelines are considered as the lifelines of energy industry. However, accidents of the pipelines can lead to severe public health and environmental concerns, in which greenhouse gas (GHG) emissions, primarily methane, are frequently overlooked. While previous studies examined fugitive emissions in normal operation of crude oil pipelines, emissions resulting from accidents were typically managed separately and were therefore not included in the emission account of oil systems. To bridge this knowledge gap, we employed a bottom-up approach to conducted the first-ever inventory of GHG emissions resulting from crude oil pipeline accidents in the United States at the state level from 1968 to 2020, and leveraged Monte Carlo simulation to estimate the associated uncertainties. Our results reveal that GHG emissions from accidents in gathering pipelines (720,000 tCOe) exceed those from transmission pipelines (290,000 tCOe), although significantly more accidents have occurred in transmission pipelines (6883 cases) than gathering pipelines (773 cases). Texas accounted for over 40% of total accident-related GHG emissions nationwide. Our study contributes to enhanced accuracy of the GHG account associated with crude oil transport and implementing the data-driven climate mitigation strategies.
原油管道被视为能源行业的生命线。然而，管道事故会引发严重的公共健康和环境问题，其中温室气体（GHG）排放，主要是甲烷，经常被忽视。虽然之前的研究考察了原油管道正常运行中的逸散排放，但事故产生的排放通常是分开管理的，因此未包含在石油系统的排放核算中。为了弥补这一知识空白，我们采用自下而上的方法，首次对 1968 年至 2020 年美国各州原油管道事故产生的温室气体排放进行了清查，并利用蒙特卡罗模拟来估计相关不确定性。研究结果表明，集输管道事故产生的温室气体排放量（约 72 万 tCOe）超过了输送管道事故（约 29 万 tCOe），尽管输送管道（6883 起）的事故明显多于集输管道（773 起）。德克萨斯州占全国与事故相关的温室气体排放总量的 40%以上。我们的研究有助于提高与原油运输相关的温室气体核算的准确性，并实施数据驱动的气候缓解策略。
