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Alternative TitleThe permeability experiment on the methane hydrate in quartz sands and its model verification
李刚1,2,3; 李超1,2,3,4; 李小森1,2,3; 魏纳5
Source Publication天然气工业
Other AbstractThe permeability of porous media is an important physical parameter that affects the exploitation of natural gas hydrate. At present, however, the measurement methods and porous media used for investigating the permeability are so different that neither well-recognized experiment methods nor measurement results are available yet. In this paper, a one-dimensional test apparatus was developed to measure the permeability of porous media with methane hydrate. By virtue of this apparatus, methane hydrate was generated and the flow rate and pressure difference of inflow liquid water were measured in a stable flow pattern. Then, based on the basic principle of the Darcy's Law, the permeability of 30–40 mesh quartz sands with a methane hydrate system was calculated using steady-state water injection. And the experimental results were obtained. First, this apparatus can provide the flow rates and pressure differences of stable fluid under constant pressures and temperatures, so it satisfies the basic conditions of the Darcy's Law and consequently the permeability is calculated. Second, with this apparatus, the methane hydrate saturation in permeability experiments can be controlled effectively, so that the reliability and repeatability of permeability measurement of methane hydrate bearing quartz sands are ensured. Third, methane hydrate crystals are formed and gradually grow in the pore center, occupying the pore space and blocking the flow channel. And the liquid effective permeability decreases sharply with the increase of methane hydrate saturation. Fourth, the permeability calculated by the Masuda, Dai and Li models is 13.0, 7.0 and 4.0, respectively and the calculated values are in accordance with the experimental results. These research results provide experimental data and a theoretical calculation basis for the quantification of fluid permeability of methane hydrate bearing porous media.
Keyword多孔介质 石英砂 甲烷水合物 渗透率 饱和度 实验室模拟 数学模型 验证 Porous media Quartz sand Methane hydrate Permeability Saturation Experimental simulation Mathematical model Verification
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Document Type期刊论文
Corresponding Author李小森
First Author Affilication天然气水合物;  GuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
李刚,李超,李小森,等. 石英砂中甲烷水合物渗透率实验与模型验证[J]. 天然气工业,2017,37(12):53-60.
APA 李刚,李超,李小森,&魏纳.(2017).石英砂中甲烷水合物渗透率实验与模型验证.天然气工业,37(12),53-60.
MLA 李刚,et al."石英砂中甲烷水合物渗透率实验与模型验证".天然气工业 37.12(2017):53-60.
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