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评估来自中国页岩气生产的甲排放:双层移动测量方法

Pu Hong¹, Yuzhong Zhang^2,3, Wenrui Shi¹

¹Department of Geography, Hong Kong Baptist University, Kowloon Tong, Hong Kong SAR 999077, China.

Environmental science & technology

|December 23, 2025

概括

中国中国中国中国.

科学领域:

环境科学环境科学
能源科学能源科学
大气化学大气化学

背景情况:

中国拥有世界上最大的页岩气储量,但缺乏详细的甲排放数据.
页岩气生产的快速扩张需要准确的排放评估.

研究的目的:

为量化中国主要页岩气生产区块的甲排放量.
确定上游生产中甲超级排放的主要来源.

主要方法:

采用了双层移动测量方法,结合了移动实验室和固定下风监测.
测量覆盖了四个主要生产区的125个井口,占全国产量的84%.

主要成果:

甲排放率差异很大,从0.002到98.86公斤/小时.
一小部分井 (10%) 占了绝大多数 (89%) 的排放.
预计2023年甲排放总量为16842,泄漏率为0.10%.

结论:

中国的页岩气甲泄漏率相当于美国的干气田.
气体升降机通风,压缩机不完全燃烧和工艺通风是超级排放的主要来源.
移动测量方法为制定监管政策提供了坚实的基础.

关键词:

一个沉默的声音.甲排放量排放甲的排放量点源高斯法高斯方法.页岩气是一种页岩气.

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