美国和中国油气系统甲烷排放状况

Methane Emission Status of Oil and Gas Systems in the United States and China

文章通过调研、分析美国和中国近年来油气系统中甲烷排放状况,对比分析美国与中国应用的主要甲烷计算方法,表明:美国油气系统中对甲烷排放量的计算方法可采用1996IPCC指南中提供的第一层次(Tier1)和第二层次(Tier2)法,计算结果相对比较准确,甲烷的排放呈逐年增加趋势;中国油气系统中甲烷排放量的计算方法目前只限于1996IPCC指南中提供的Tier1法,中国甲烷排放量相对于美国等发达国家较少,但整体呈增长趋势。

This paper surveys and analyzes the American and China methane emission status in the oil and gas systems in recent years and reaches the following conclusions ： in the United States,estimating methane emissions adopts the Tier1and Tier2approaches supplied by 1996 IPCC and the data obtained is relatively accurate.Methane emissions are estimated to grow yearly;in China,estimating methane emissions adopts the Tier1method and methane emissions are less than those of the United States.The emissions are expected to grow.