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    Conventional methods for wettability determination of shales: A comprehensive review of challenges, lessons learned, and way forward

    Access Status
    Fulltext not available
    Authors
    Sharifigaliuk, H.
    Mahmood, S.M.
    Rezaee, Reza
    Saeedi, Ali
    Date
    2021
    Type
    Journal Article
    
    Metadata
    Show full item record
    Citation
    Sharifigaliuk, H. and Mahmood, S.M. and Rezaee, R. and Saeedi, A. 2021. Conventional methods for wettability determination of shales: A comprehensive review of challenges, lessons learned, and way forward. Marine and Petroleum Geology. 133: ARTN 105288.
    Source Title
    Marine and Petroleum Geology
    DOI
    10.1016/j.marpetgeo.2021.105288
    ISSN
    0264-8172
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/89536
    Collection
    • Curtin Research Publications
    Abstract

    The wettability is a critical property that governs the in situ fluid distribution, fractional flow, and hydrocarbon trapping in the porous media. This topic is of immense interest to the petroleum industry for the exploitation of unconventional resources, which have become a significant source of oil and gas production, especially in North America, Canada, and China, as a result of the advancement of horizontal drilling and fracking technologies. The conventional techniques as the central focus for wettability determination of shales include contact angle, spontaneous imbibition, and flotation. This paper reviews the published literature and analyzes the challenges and lessons learned from each method applicable for shales. The results of various techniques are compared, and their consistency is highlighted. Comparative contact angle measurements can characterize the surficial wettability and hysteresis of dynamic processes in shales. Spontaneous imbibition is recommended as the most realistic and representative measurement method, whereas it reveals the pore connectivity of the internal pore network. However, different liquid/rock interactions, mainly clay swelling and the creation of micro-fractures, affect the results thus necessitate the application of reservoir triaxial stress conditions on shale samples. In this review, finally, some concluding remarks and recommendations are presented.

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