Experimental Investigation into the Production Behavior of Methane Hydrate in Porous Sediment with Hot Brine Stimulation

被引：116

作者：

Li, Xiao-Sen ^{[1
]}

Wan, Li-Hua ^{[1
,2
]}

Li, Gang ^{[1
]}

Li, Qing-Ping ^{[3
]}

Chen, Zhao-Yang ^{[1
]}

Yan, Ke-Feng ^{[1
]}

机构：

[1] Chinese Acad Sci, Guangzhou Inst Energy Convers, Ctr Gas Hydrate Res, Key Lab Renewable Energy & Gas Hydrate, Guangzhou 510640, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100083, Peoples R China

[3] CNOOC Res Ctr, Beijing 100027, Peoples R China

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2008年 / 47卷 / 23期

基金：

国家高技术研究发展计划(863计划); 中国国家自然科学基金;

关键词：

D O I：

10.1021/ie8009582

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The gas production behavior from methane hydrate in porous sediment by injecting the brine with the salinity of 0-24 wt % and the temperature of -1 to 130 degrees C was investigated in a one-dimensional experimental apparatus. The results show that the gas production process consists of three periods: the free gas production, the hydrate dissociation, and the general gas reservoir production. The hydrate dissociation accompanies the temperature decrease with the injection of the brine (NaCI solution), and the dissociation duration is shortened with the increase of the salinity. With the injection of hot brine, instantaneous hydrate dissociation rate also increases with the increase of the salinity. However, while the NaCI concentration is beyond a certain value, the rate has no longer continued increasing. Thermal efficiency and energy ratio for the hydrate production can be enhanced by injecting hot brine, and the enhanced effectiveness is quite good with the injection of high salinity at lower temperature.

引用

页码：9696 / 9702

页数：7

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