Investigation of Stress-Dependence on Hydro-Mechanical Properties of Fractured Rocks

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Khazaie, Sina | 2015

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Type of Document: M.Sc. Thesis
Language: Farsi
Document No: 47189 (06)
University: Sharif University of Technology
Department: Chemical and Petroleum Engineering
Advisor(s): Goodarznia, Iraj
Abstract:
Fracture and Matrix permeability systematically change because production time of gas and oil reservoirs is very long and pore pressure, temperature and in-situ stresses continously change in reservoirs.This parameters have an important role in determination and development of wells according to the permeability distribution.The main factors in determination of fracture permeability values is normal and shear stiffness that parameters such as roughness, opening, closure, aperture and asperities influence this factor.In this thesis, we try to investigate the influence of this parameters on fracture permeability according to the normal and shear stresses.Also we want to investigate the dilation value in shear direction and influence of direction and rate of stresses in permeability according to the mathematic models
Keywords:
Roughness ; Dilatancy ; Hardness ; Permeability ; Normal Stress ; Dilatation ; Normal Shear

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