三维实验模拟垂直井和水平井降压开采水合物
收稿日期: 2014-03-19
修回日期: 2014-06-19
网络出版日期: 2014-06-30
基金资助
国家海洋地质专项 （GHZ2012006003）；中科院重点部署项目（KGZD-EW-301-2）；广州科技项目（2012J5100012）
Experimental Investigation of Hydrate Dissociation Behaviors with a Vertical Well and a Horizontal Well in Three-Dimensional Reactor
Received date: 2014-03-19
Revised date: 2014-06-19
Online published: 2014-06-30
冯景春 , 李小森 , 李 刚 , 王 屹 , 张 郁 , 陈朝阳 . 三维实验模拟垂直井和水平井降压开采水合物[J]. 新能源进展, 2014 , 2(3) : 216 -220 . DOI: 10.3969/j.issn.2095-560X.2014.03.009
Depressurization has been considered as a practical method for its economic advantage and simplicity for operation in hydrate exploitation. In order to study the dissociation mechanism of hydrate by depressurization, this work investigated the hydrate dissociation behaviors by depressurization in a three-dimensional reactor with different well configurations. The gas production, water production, and the spatial distribution of temperature are obtained. The results indicate that the average gas production rate with the horizontal well is 1.48 times larger than that with the vertical well. For the experimental run with the horizontal well, water production variation is in line with the change of gas production. However, water production with the vertical well is neglectable. In the process of hydrate dissociation, the temperature in the edge of the reactor is higher than that in the center of the reactor, indicating that hydrate is dissociated under the effect of the heat transferred from the boundaries.
Key words： hydrate; horizontal well; vertical well; three-dimensional; depressurization
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