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Modélisation du comportement hydromécanique des réservoirs fracturés à double porosité et double perméabilité.

Abstract : Fractured rock masses modeling is a challenge issue in many field of industry including but not limited to oiland gas exploitation. In the literature, fractured rock masse are in many cases recognized as double permeability medium in which fracture network provides the primary permeability and rock matrix plays asthe second one. The idea of dissociation of flow inside the fracture network and the matrix, the double permeability, is still challenged for fractured reservoirs. Numerous contributions on this issue have been presented in the past could be cast in two main approaches: continuum media approach and discontinuous approach. Each approach has its advantages and limitations. To overcome the limitation and to take advantage of these two approaches, the Embedded Fractured Continuum Approach (EFCA) which borrows the concept of continuum models and also incorporates the effect of explicit fractures is considered in this thesis. The principal idea of this approach lies on the concept of fracture cell representing a porous medium that has their own properties calculated from the properties of porous matrix and fractures intersecting it.The development in this work was conducted by using the library source code DEAL.II. The accuracy of EFCA was investigated through different verifications. Through some applications: determination of effective hydro-mechanical properties of an actual site, estimation of well production in which necessary fractures are modeled explicitly, we demonstrate the performance of the EFCA in the modeling fracture drock masses as well as the effect of double porosity and double permeability on behaviours of fractured reservoirs.
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Submitted on : Wednesday, September 5, 2018 - 11:18:05 AM
Last modification on : Wednesday, November 20, 2019 - 1:42:54 AM
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  • HAL Id : tel-01868208, version 1


Hong Lam Dang. Modélisation du comportement hydromécanique des réservoirs fracturés à double porosité et double perméabilité.. Sciences de la Terre. Université d'Orléans, 2018. Français. ⟨NNT : 2018ORLE2001⟩. ⟨tel-01868208⟩



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