Measurement of interfacial area per volume for drainage and imbibition
Measurement of interfacial area per volume for drainage and imbibition
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DOI：
10.1029/2007wr006021
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发表时间：
2007-12-27
影响因子：
5.4
通讯作者：
Giordano, Nicholas J.
中科院分区：
文献类型：
--
作者：
Chen, Daiquan;Pyrak-Nolte, Laura J.;Giordano, Nicholas J.
我们实验研究毛细压力，Pc，润湿相饱和度，S-W，和每体积之间的润湿和非润湿相，芒，排水和吸胀过程中的微观模型的二维孔隙结构的界面面积之间的函数关系。在实验和分析误差（约10-15%）内，所得的P-c-S-w-a（wn）表面是相同的。这表明，从排水过程或自吸过程获得的数据足以产生P-c-S-w-a（wn）之间的完整函数关系，并且可以通过包括界面面积作为附加状态变量来模拟P-c-S-w-a（wn）中观察到的滞后。
We investigate experimentally the functional relationship between capillary pressure, Pc, wetting phase saturation, S-w, and interfacial area per volume between the wetting and nonwetting phases, awn, for drainage and imbibition processes in micromodels of two-dimensional pore structures. Within the experimental and analysis error (around 10-15%), the resulting P-c-S-w-a(wn) surfaces were the same. This suggests that data obtained from either the drainage process or the imbibition process are sufficient to generate the complete functional relationship among P-c-S-w-a(wn) and that the observed hysteresis in P-c-S-w-a(wn) can be modeled by including interfacial area as an additional state variable.