三维实验模拟双水平井联合法开采天然气水合物
Three-dimension Experimental Investigation of Hydrate Dissociation by the Combined Method with Dual Horizontal Wells
查看参考文献24篇
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文摘
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为研究联合法开采天然气水合物,在水合物三维实验开采模拟平台中利用双水平井进行降压联合注温水开采水合物实验,得到温度和压力分布、产气、产水、三相饱和度变化与开采方法的传热特性。整个开采过程可以分为自由气释放阶段、静置阶段、降压开采阶段和注热开采阶段。研究结果表明在自由气释放阶段和静置阶段有二次水合物生成。在注热阶段,水合物在降压和注热的协同作用下进行分解。反应釜中的水合物最终被完全分解,并且本研究的能效比高于前人利用垂直井进行降压联合热吞吐分解水合物的能效比,表明利用双水平井进行降压联合注温水是一种有效的分解水合物的方法。 |
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其他语种文摘
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Depressurization in conjunction with warm water injection with dual horizontal wells was employed to investigate the gas production performance of hydrate dissociation in a cubic three-dimension simulator. Based on the process of pressure and temperature changing with time,the experiment can be divided into four sections, i. e. the free gas release stage,the quiescence stage,the depressurization stage and the injection stage. The experimental results showed that hydrates formed a second time in the free gas release stage and the quiescence stage. In the injection stage,the hydrate was dissociated under the synergistic effect of depressurization and thermal stimulation. The change of the hydrate /gas /water saturation indicates that the hydrate can be dissociated completely. In addition,the energy ratio in this study is higher than that in the previous study by the ver tical well with the Huff and Puff method. |
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来源
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现代地质
,2016,30(4):929-936 【核心库】
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关键词
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三维
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水合物
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分解
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联合法
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双水平井
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传热特性
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地址
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中国科学院广州能源研究所天然气水合物研究中心, 中国科学院天然气水合物重点实验室;;广东省新能源和可再生能源研究开发与应用重点实验室;;广东省新能源和可再生能源研究开发与应用重点实验室, 广东, 广州, 510640
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1000-8527 |
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学科
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石油、天然气工业 |
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基金
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国家自然科学基金项目
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中国石油-中国科学院科技合作项目
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中国科学院重点部署项目
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国家海洋地质专项
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国家自然科学基金国家杰出青年科学基金
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文献收藏号
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CSCD:5794874
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