重庆科技大学学报（自然科学版）2026，Vol.28Issue(2)：23-30,8.DOI:10.19406/j.issn.2097-4531.2026.02.003
基于压力振荡法的天然气水合物沉积物渗透率影响因素研究
Research on Influencing Factors of Permeability of Hydrate-Bearing Sediments Based on Pressure Oscillation Method
摘要
Abstract
A natural gas hydrate permeability tester was developed,and permeability testing experiments were con-ducted on hydrate-bearing sediments using the pressure oscillation method to analyze the variation pattern of perme-ability with hydrate saturation.In the experimental study,the instrument measured the permeability of natural gas hydrates at different saturation levels,and the experimental data were fitted using three common models,including the Kozeny Grain model,the parallel capillary model,and the Tokyo model,to characterize the relationship be-tween saturation and permeability.The study found that the experimental data obtained from this instrument can ac-curately reveal the impact of hydrate formation on flow capacity.Furthermore,under an effective confining pressure of 1.00 MPa,an increase of 10％in hydrate saturation resulted in a 25％decrease in the permeability of the sample.关键词
压力振荡法/天然气水合物/沉积物/渗透率/水合物饱和度Key words
pressure oscillation method/natural gas Hydrates/sediments/permeability/hydrate saturation分类
能源科技引用本文复制引用
李莉佳,刘发平,周歆乔,黄小亮,丁忠配..基于压力振荡法的天然气水合物沉积物渗透率影响因素研究[J].重庆科技大学学报（自然科学版）,2026,28(2):23-30,8.基金项目
国家重点研发计划"储层风险预测与安全评价方法研究"(2021YFC2800905-02) （2021YFC2800905-02）
