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不同水合物饱和度下渗透率变化特性的实验研究
Authors
吕鑫
吴丹梅
李刚
李小森
Publication date
1 January 2017
Publisher
Abstract
含固体水合物的多孔介质的渗透率是影响天然气水合物藏开采潜力的一个重要参数,多孔介质的渗透率受到水合物占据孔隙的百分比的影响,定量研究水合物的饱和度对渗透率的影响对于天然气水合物试开采工程具有重要意义。本文利用储气罐精确控制注入反应釜的甲烷气量,采用平均粒径为333.21μm的石英砂模拟多孔介质进行实验,开展了一系列不同甲烷水合物饱和度(0~35%)下液相水的渗透率的测量实验。结果表明,水合物饱和度的增加会引起渗透率逐渐下降,这与前人的研究结果一致。并且当水合物饱和度较低时(SH<10%),水合物固体对多孔介质孔隙的堵塞作用更明显,所以渗透率急剧下降;而在相对高的饱和度下(SH>10%),渗透率下降速率逐渐降低。将本实验测量结果与Kozeny颗粒模型、平行毛细管模型和Masuda下降模型0HK.K(1.S)N,N为整数进行对比,发现测量结果与Masuda渗透率下降模型N=13的值吻合较好
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Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
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oai:ir.giec.ac.cn:344007/30808
Last time updated on 04/12/2021
Institutional Repository of GuangZhou Institute of Energy Conversion, CAS
See this paper in CORE
Go to the repository landing page
Download from data provider
oai:ir.giec.ac.cn:344007/17669
Last time updated on 05/12/2019