Initial Sensitivity Studies of Basin Shortening: An Exploration of Mechanisms Roozbeh Foroozan.

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Presentation transcript:

Initial Sensitivity Studies of Basin Shortening: An Exploration of Mechanisms Roozbeh Foroozan

Introduction

Rock Mechanics Modeling

FEM Modeling Shear band Non homogeneity cu= 10 ± 5 MPa PLAXIS (qu=2cu) COMSOL cu= 10 ± 5 MPa

FEM Modeling Cohesive Material Cohesive-Frictional Material (f=30) 15km x 5km E = 0.5 GPa Cohesive-Frictional Material (f=30)

FEM Modeling Varying Cohesion (10±5MPa to 50±5MPa) Varying Cohesion and Lateral Loading

FDM Modeling Graben formation above a tilting basement

Effect of Water Effective stress reduction

FDM Modeling Water Effect

FDM Modeling Large Deformation Strain Softening