陆域天然气水合物取样关键因素探讨  

Discussion on Key Parameters of Land Gas Hydrate Sampling

作　　者：姚彤宝[1] 周兢[1] 李生红[1] 

机构地区：[1]中国煤炭地质总局,北京100039

出　　处：《探矿工程（岩土钻掘工程）》2011年第1期18-21,共4页Exploration Engineering:Rock & Soil Drilling and Tunneling

摘　　要：温度和压力是保持天然气水合物不分解的2个重要参数。依据热物理力学理论和理想气体特性,通过计算机模拟0℃以上甲烷水合物和二氧化碳水合物在不同温度-压力条件下的分解,得到甲烷水合物分解P-T平衡相图,探讨了钻探获取陆域天然气水合物取样温压关系。Both the temperature and pressure are key parameters to keep natural gas hydrate as solid.Based on thermal physical mechanics and the characteristic property of ideal gas,and by computer simulating the decomposition of methane hydrates and carbon dioxide hydrates under different temperature（all above 0℃） and pressure conditions,the P-T balance station of methane hydrate dissociation was obtained and the relationship between temperature and pressure for land gas hydrate sampling was discussed.

关 键 词：天然气水合物 理想气体 热物理力学 取样 

分 类 号：P634.43[天文地球—地质矿产勘探]