کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9482815 | 1327652 | 2005 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Prediction of two-phase capillary pressure-saturation relationships in fractional wettability systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
فرآیندهای سطح زمین
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![عکس صفحه اول مقاله: Prediction of two-phase capillary pressure-saturation relationships in fractional wettability systems Prediction of two-phase capillary pressure-saturation relationships in fractional wettability systems](/preview/png/9482815.png)
چکیده انگلیسی
Capillary pressure/saturation data are often difficult and time consuming to measure, particularly for non-water-wetting porous media. Few capillary pressure/saturation predictive models, however, have been developed or verified for the range of wettability conditions that may be encountered in the natural subsurface. This work presents a new two-phase capillary pressure/saturation model for application to the prediction of primary drainage and imbibition relations in fractional wettability media. This new model is based upon an extension of Leverett scaling theory. Analysis of a series of DNAPL/water experiments, conducted for a number of water/intermediate and water/organic fractional wettability systems, reveals that previous models fail to predict observed behavior. The new Leverett-Cassie model, however, is demonstrated to provide good representations of these data, as well as those from two earlier fractional wettability studies. The Leverett-Cassie model holds promise for field application, based upon its foundation in fundamental scaling principles, its requirement for relatively few and physically based input parameters, and its applicability to a broad range of wetting conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Contaminant Hydrology - Volume 77, Issue 4, May 2005, Pages 247-270
Journal: Journal of Contaminant Hydrology - Volume 77, Issue 4, May 2005, Pages 247-270
نویسندگان
Denis M. O'Carroll, Linda M. Abriola, Catherine A. Polityka, Scott A. Bradford, Avery H. Demond,