Experimental Study on Gas Production from Methane Hydrate Bearing Sand by Depressurization
(0) The simulate experiments of gas production from methane hydrates reservoirs was proceeded with an experimental apparatus.Especially,TDR technique was applied to represent the change of hydrate saturation in real time during gas hydrate formation and dissociation.In this paper,we discussed and explained material transformation during hydrate formation and dissociation.The hydrates form and grow on the top of the sediments where the sediments and gas connect firstly.During hydrates dissociation by depressurization,the temperatures and hydrate saturation presented variously in different locations of sediments,which shows that hydrates dissociate earlier on the surface and outer layer of the sediments than those of in inner.The regulation of hydrates dissociation is consistent with the law of decomposition kinetics.Furthermore,we investigated the depressurizing range influence on hydrate dissociation process.
gas hydrates sediments depressurization TDR
Sun Jianye Ye Yuguang Liu Changling Zhang Jian
College of Marine Geosciences, Ocean University of China, Qingdao 266100, China ;Qingdao Institute o Qingdao Institute of Marine Geology, Qingdao 266071, China
国际会议
石家庄
英文
28-32
2012-10-26（万方平台首次上网日期，不代表论文的发表时间）