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    Numerical Modeling of Hydraulic Confinement around Crude Oil Storage Cavern in Fractured Rocks: Direct Application of DFN Concept

    75425 final submitted.pdf (737.8Kb)
    Access Status
    Open access
    Authors
    Sharifzadeh, Mostafa
    Javadi, M.
    Shahriar, K.
    Sayadi, S.
    Type
    Journal Article
    
    Metadata
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    Citation
    Javadi, M. and Sharifzadeh, M. and Shahriar, K. and Sayadi, S. 2014. Numerical Modeling of Hydraulic Confinement around Crude Oil Storage Cavern in Fractured Rocks: Direct Application of DFN Concept, in Proceedings of the World Tunnel Congress 2014 – Tunnels for a better Life (WTC2014), May 9-15 2014. Foz do Iguaçu, Brazil: WTC.
    Faculty
    Faculty of Science and Engineering
    School
    WASM: Minerals, Energy and Chemical Engineering
    URI
    http://hdl.handle.net/20.500.11937/75183
    Collection
    • Curtin Research Publications
    Abstract

    Unlined rock caverns for hydrocarbon storage are mainly excavated in strong and stable rock masses with very low-permeable matrix, where hydrocarbon migration is only possible along fractures connected to the cavern boundaries and their networks. In this paper, the hydraulic confinement around a URC cavern was simulated by directly applying distinct fracture network (DFN) model. First, a computational code, so-called “FNETF”, was developed to generate DFN and solving fluid flow equation along fractures. Proper internal hydraulic boundary condition of water-hydrocarbon interface at cavern boundary was defined based on the fluids properties and applied in the FNETF code. Fluid flow in fracture network was numerically simulated for different outer boundary hydraulic conditions assigned by different groundwater pressures of water curtain. Finally, the assessment achieved to expect the occurrence of hydrocarbon.

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