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DOI | 10.1002/2017GL073603 |
Enhanced permeability due to apparent oil/brine slippage in limestone and its dependence on wettability | |
Christensen, M.; Tanino, Y. | |
2017-06-28 | |
发表期刊 | GEOPHYSICAL RESEARCH LETTERS
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ISSN | 0094-8276 |
EISSN | 1944-8007 |
出版年 | 2017 |
卷号 | 44期号:12 |
文章类型 | Article |
语种 | 英语 |
国家 | Scotland |
英文摘要 | End point relative permeabilities were measured in three limestones with permeabilities ranging from 0.6 to 220 mD under five wettability states established by adding different organic acids, of similar molecular structure but different alkyl chain length, to the oil phase. The altered wettability corresponding to each oil/brine pair is characterized by their dynamic contact angle on a polished calcite substrate, 0(w), which varied between 50 degrees and 150 degrees. Saturation-normalized relative permeability to oil exceeds one at 0(w)< 140 degrees in all rock considered. The equivalent slip length, defined by modeling the porous medium as a capillary tube with the defending phase distributed as an annular film on the tube wall, was below 200 nm in all experiments. The results indicate that commonly used models of relative permeability, which assume that the maximum permeability is the single-phase permeability, underestimate oil displacement for a much wider range of contact angles than previously documented. |
英文关键词 | multiphase flow slip wettability hydrophobic surfaces relative permeability |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000405854200029 |
WOS关键词 | 3-PHASE RELATIVE PERMEABILITY ; BOUNDARY-CONDITION ; CONTACT-ANGLE ; 2-PHASE FLOW ; MIXED-WET ; SURFACE-ROUGHNESS ; SOLID-SURFACES ; POROUS-MEDIA ; SATURATION ; ROCK |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/26382 |
专题 | 气候变化 |
作者单位 | Univ Aberdeen, Sch Engn, Aberdeen, Scotland |
推荐引用方式 GB/T 7714 | Christensen, M.,Tanino, Y.. Enhanced permeability due to apparent oil/brine slippage in limestone and its dependence on wettability[J]. GEOPHYSICAL RESEARCH LETTERS,2017,44(12). |
APA | Christensen, M.,&Tanino, Y..(2017).Enhanced permeability due to apparent oil/brine slippage in limestone and its dependence on wettability.GEOPHYSICAL RESEARCH LETTERS,44(12). |
MLA | Christensen, M.,et al."Enhanced permeability due to apparent oil/brine slippage in limestone and its dependence on wettability".GEOPHYSICAL RESEARCH LETTERS 44.12(2017). |
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