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    Pre-Darcy flow in shales: Effects of the rate-dependent slip

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    PETROL15086R2.pdf
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    3.019Mb
    Format:
    PDF
    Description:
    Accepted manuscript
    Embargo End Date:
    2021-08-17
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    Type
    Article
    Authors
    Cui, Jiangfeng
    KAUST Department
    Physical Science and Engineering Division, King Abdullah University of Science and Technology, Jeddah, Saudi Arabia
    Date
    2019-08-17
    Online Publication Date
    2019-08-17
    Print Publication Date
    2019-12
    Embargo End Date
    2021-08-17
    Permanent link to this record
    http://hdl.handle.net/10754/656742
    
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    Abstract
    The pre-Darcy flow phenomena in porous media is still not well understood, and the liquid slip mechanism in shales is controversial. Both issues need more exploration. In the field of microfluidic research, the concept of the slip length is widely employed to characterize the deviation from the no-slip flow, and it is recognized that the slip is rate-dependent. For the first time, the rate-dependent slip is proposed as an explanation for the pre-Darcy flow phenomena in porous media and the compromise between existing controversial views with regard to the liquid slip flow in shales based on careful analysis, and then such slip is incorporated in the one-dimension unsteady diffusion equation for liquids. The finite difference method is employed to numerically solve the equation, and detailed sensitivity analysis is conducted for the critical shear stress, the pore radius and the slip length. The results are summarized, and suggestions for future research are provided. This work can provide new insight into the pre-Darcy flow phenomena in the nanoporous media, and can compromise between existing controversial views regarding the liquid slip mechanism in shales. More importantly, this subject is also significant to research and develop EOR methods in shale reservoirs.
    Citation
    Cui, J. (2019). Pre-Darcy flow in shales: Effects of the rate-dependent slip. Journal of Petroleum Science and Engineering, 183, 106393. doi:10.1016/j.petrol.2019.106393
    Publisher
    Elsevier B.V.
    Journal
    Journal of Petroleum Science and Engineering
    DOI
    10.1016/j.petrol.2019.106393
    Additional Links
    https://linkinghub.elsevier.com/retrieve/pii/S0920410519308149
    ae974a485f413a2113503eed53cd6c53
    10.1016/j.petrol.2019.106393
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