探矿工程-岩土钻掘工程Issue(z1)：235-238,4.
CO2／N2原位置换开采天然气水合物方案的设想
Analysis of Gas Hydrate Recovery Methods and Recovery of Gas Hydrate by in Situ Replacement with CO2/N2
摘要
Abstract
The current methods of gas hydrate production are reviewed with emphysis on the method of in situ gas hydrate replacement by injecting CO2/N2 .With this method, while the gas hydrate is produced, the CO2 is being stored under-ground.It is proposed to incorporate underground well connection by horizontal drilling and hydraulic fracturing into pro-duction of gas hydrate by in situ replacement with CO2/N2 .The fracture systems in the reservoir are communicated through well units connected by horizontal drilling, and fracturing increases the conductivity of the reservoir; thus eliminating the low efficiency in production caused by low heat and mass transfer and low permeability of gas hydrate formation.The pro-posed process is economic, highly efficient and environmental sound.关键词
天然气水合物/CO2/N2 原位置换/开采方法/水平对接井/压裂Key words
gas hydrate/CO2/N2/in situ replacement production/production process/well connection by horizontal drill-ing/fracturing分类
天文与地球科学引用本文复制引用
李冰,孙友宏,郭威,韩丽丽..CO2／N2原位置换开采天然气水合物方案的设想[J].探矿工程-岩土钻掘工程,2013,(z1):235-238,4.基金项目
中国地质调查局专项 （）
