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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
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
FENG Jing-chun , LI Xiao-sen , LI Gang , WANG Yi , ZHANG Yu , CHEN Zhao-yang . Experimental Investigation of Hydrate Dissociation Behaviors with a Vertical Well and a Horizontal Well in Three-Dimensional Reactor[J]. Advances in New and Renewable Energy, 2014 , 2(3) : 216 -220 . DOI: 10.3969/j.issn.2095-560X.2014.03.009
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