受成型工艺和材料属性的限制,GFRP(Glass Fiber Reinforced Plastics)在表面和内部存在一定数量的孔隙,导致管材输送超临界CO2( sc-CO2 )时受到流体渗透和扩散的作用而性能降低.为研究不同工况下介质在GFRP中的渗透行为,本文建立了sc-CO2在GFRP中渗透扩散的多孔介质模型,运用计算机流体力学软件FLUENT模拟了sc-CO2在GFRP中的渗透行为,通过控制粘性阻力系数和惯性阻力,研究了渗透深度随时间变化的规律,以及温度和压强对sc-CO2在GFRP中的渗透速度影响规律.结果表明:不同渗透阻力系数下,sc-CO2在GFRP中的渗透速度相差较大,但其渗透深度的变化趋势基本一致,即渗透速度只有量的差异,没有质的区别;随温度的升高,sc-CO2的渗透速率降低;随压强的升高, sc-CO2渗透速率显著增加.
Due to the limitation of the processing technique and the materials feature, there usually exist numerous pores in Glass Fiber Reinforced Plastics ( GFRP ) , which will reduce the performance in transfer supercritical CO2 ( sc-CO2 ) . The porous media model has been established to simulate the penetration behaviors of sc-CO2 in different conditions by the software FLUENT. The penetration depth as a function of the time, and the effect of the temperature and pressure on the penetration rate of sc-CO2 in GFRP have been studied by controlling both viscous and inertial resistance coefficient in this work. The result shows that the penetration rate of sc-CO2 varies considerably with coefficientsThe penetration rate decreases with the increase in the temperature and dramatically increases with the increase inthe pressure.
参考文献
| [1] | 乔红军;任晓娟;闫凤平;张建国;高志亮.低渗透储层水气交替注入方式室内试验研究[J].石油天然气学报,2013(7):114-117. |
| [2] | M. B. Kermani;A. Morshed.Carbon Dioxide Corrosion in Oil and Gas Production -- A Compendium[J].Corrosion: The Journal of Science and Engineering,20038(8):659-683. |
| [3] | 高云丛;赵密福;王建波;宗畅.特低渗油藏CO2非混相驱生产特征与气窜规律[J].石油勘探与开发,2014(1):79-85. |
| [4] | Liu, B.;Wong-Foy, A.G.;Matzger, A.J..Rapid and enhanced activation of microporous coordination polymers by flowing supercritical CO_2[J].Chemical communications,201314(14):1419-1421. |
| [5] | 王世杰.原油含水率对油气管材超临界CO2腐蚀行为的影响[J].腐蚀科学与防护技术,2015(1):73-77. |
| [6] | 李天成.榆济天然气管道内腐蚀原因[J].腐蚀与防护,2014(3):282-285. |
| [7] | 宋文娟 .玻纤增强环氧树脂复合材料耐海水腐蚀行为与寿命预测[D].哈尔滨工业大学,2014. |
| [8] | 张阿樱;张东兴;李地红;肖海英;贾近.碳纤维/环氧树脂层压板的孔隙问题[J].宇航材料工艺,2011(3):16-19. |
| [9] | Jaime C. Grunlan;Ali R. Mehrabi;Michael V. Bannon;Jeffrey L. Bahr.Water-Based Single-Walled-Nanotube-Filled Polymer Composite with an Exceptionally Low Percolation Threshold[J].Advanced Materials,20042(2):150-153. |
| [10] | 赵培仲;王源升;朱金华;花兴艳;文庆珍.聚氨酯弹性体的高弹模量对温度的依赖性[J].高分子材料科学与工程,2008(4):89-92. |
| [11] | 王彬 .PAN纤维取向结构对热稳定化反应的影响[D].北京化工大学,2012. |
| [12] | 王静;李军建;吴启鹏.阻隔材料的气体渗透率[J].强激光与粒子束,2012(7):1619-1623. |
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