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  1. مدل سازی المان محدود توسعه یافته گسترش شکست هیدرولیکی در مخازن ترک خورده طبیعی با استفاده از ماتریس نفوذ پذیری و خواص ماده غیرهمسان معادل
مدل سازی المان محدود توسعه یافته گسترش شکست هیدرولیکی در مخازن ترک خورده طبیعی با استفاده از ماتریس نفوذ پذیری و خواص ماده غیرهمسان معادل
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مدل سازی المان محدود توسعه یافته گسترش شکست هیدرولیکی در مخازن ترک خورده طبیعی با استفاده از ماتریس نفوذ پذیری و خواص ماده غیرهمسان معادل

عابدیان امیری، عرفان Abedian Amiri, Erfan

An Extended Finite Element Two-phase Crack Propagation in Fractured Rock Masses Using the Equivalent Anisotropic Compliance and Permeability Tensors

Abedian Amiri, Erfan | 2014

1264 Viewed
  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 46716 (09)
  4. University: Sharif University of Technology
  5. Department: Civil Engineering
  6. Advisor(s): Khoei, Amir Reza
  7. Abstract:
  8. Fractured rock masses contain fractures facilitating the fluid movement and storage. Permeability and material behavior of this particular material is poorly understood. Hence, there would be a great need of determining the characteristics of such materials. In this paper, an equivalent approach has been implemented at first in order to equivalently determine the hydro-mechanical and geomechanical characteristics of the fractured rock masses in the form of anisotropic tensors. The equivalent permeability and compliance tensors are derived based upon fluid dissipation energy and linear elasticity, respectively. In addition, the effect of derived characteristics on a single-phase (solid medium) and two-phase (saturated medium) fracture propagation behavior has been investigated. The extended finite element method (X-FEM) is applied to the problem in order to model the main discontinuity. The renowned fully-coupled u – p formulation of the saturated porous medium has been utilized in simulation of the fluid flow through the fractured rock mass. Some comparisons between different cases has been done to determine the influence of each equivalent procedure (permeability and compliance tensor) on the solution
  9. Keywords:
  10. Crack Propagation ; Hydraulic Fracturing ; Extended Finite Element Method ; Naturally Fractured Reservoir ; Anisotropic Permeability Tensor ; Anisotropic Compliance Tensor

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