摘要
随着《京都议定书》的实施,如何经济有效地控制CO2的排放量,减缓温室效应对我国已显得越来越迫切。非常规储存是将排放到大气中的CO2,通过采集回注到地下煤气层、废油气储层或深海盐水储层中储存的方法,主要有CO2水合物法、煤层气置换法、CO2驱替甲烷水合物、注CO2提高原油或凝析油的采收率、深海盐水储层储存法等。从储存的机理方面介绍了各种非常规储存CO2的方法,并从技术和经济的角度对各种方法进行了评价。指出对于具有相同烃类孔隙体积的油气藏来说,由于气体更容易压缩,地质构造封闭性好,气藏、凝析气藏在储存CO2方面具有更大的优势。
Unconventional storage refers to the method which injects CO2 separated from waste gas emitted into air back into coalbed methane reservoir, depleted oil and gas reservoir or deep saline aquifers. The main methods include CO2 hydrate method, CO2-enhanced coalbed methane recovery (CO2-ECBMR), CH4 hydrate exploitation by CO2, CO2-enhanced oil recovery (CO2-EOR), and deep saline aquifer storage method, etc. This paper introduces a variety of unconventional storage methods in terms of storage mechanism and evaluated these methods in terms of technology and economic benefit. The paper also points out that for the oil and gas reservoirs with same hydrocarbon voids volumes, gas reservoirs and condensate gas reservoirs have greater advantages in CO2 storage, because the gas can be easily compressed and the geological structure of gas reservoir features good sealing property.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
2008年第8期105-107,共3页
Natural Gas Industry
基金
国家重点基础研究发展计划(973计划)"温室气体提高石油采收率的资源化利用及地下埋存"(编号:2006CB705800)的资助
关键词
CO2
非常规储存
机理
评价
carbon dioxide (CO_2), unconventional storage, mechanism, evaluation
