This paper focuses on the related problems during natural gas hydrate production by depressurization with the method of fluid-solid coupling numerical simulation. Firstly, a new phase change porous flow model for gas hydrate production by depressurization has been developed.
本论文针对天然气水合物藏降压开采的相关问题开展流固耦合数值模拟研究。
参考来源 - 天然气水合物藏降压开采流固耦合数值模拟研究The higher the outlet pressure, the higher the peak gas production. The research can provide basis for the depressurization production of NGH in theoretical and experimental aspects.
以上研究为天然气水合物的降压开采提供了理论和实验依据。
参考来源 - 天然气水合物降压开采实验和数值模拟研究·2,447,543篇论文数据，部分数据来源于NoteExpress
因此在低渗透油气藏的开采中，不宜采用降压开采。
Therefore, lowered pressure should not be used in the exploitation of low permeation oil reservoirs.
降压开采表明在二维平面上存在一定的压差与温差，其中温降随与开采井的距离增大而减小。
Pressure and temperature difference can be observed during the production by depressurizing, meanwhile, the degree of temperature decrease is higher as the increase of the producers' spacing.
使用自制的一维天然气水合物开采模拟实验装置，对天然气水合物降压开采进行了物理模拟实验研究，考察了降压幅度、降压速度对开采效果的影响。
The physical simulation experiments of natural gas hydrate(NGH) production by depressurizing in sand-packed porous media were carried out using a new type of apparatus self-designed.
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