可再生能源2018，Vol.36Issue(7)：977-983,7.
海底天然气水合物上覆层甲烷气体运移过程模拟
Simulation of methane gas migration process in submarine gas hydrate overlying layer
摘要
Abstract
Based on the finite element method, the gas migration model involving complex problems such as multi-field coupling is established, and the properties and permeability of methane gas under different working conditions are studied. Numerical simulation results show that the dense overlying layers is closed, and the gas migration will increase sharply when there are cracks and other channels. The sedimentary layer will deform under stress -permeation coupling, which will cause the permeability of the medium to decrease. The migration of methane gas is blocked and the seepage velocity is reduced, resulting in more realistic simulation results, which lays the theoretical foundation for actual mining.关键词
天然气水合物/气体运移/渗透量Key words
gas hydrate/gas transport/permeation flux分类
能源科技引用本文复制引用
向世焜,孙洪广,常爱莲..海底天然气水合物上覆层甲烷气体运移过程模拟[J].可再生能源,2018,36(7):977-983,7.基金项目
国家自然科学基金项目(11572112,41330632,41628202) （11572112,41330632,41628202）
中央高校基本科研业务费项目(2017B21614). （2017B21614）
