The paper outlines some recent developments of the boundary element method (BEM) that makes it more user friendly and suitable for a realistic simulation in geomechanics, especially underground excavations tunnelling. innovations refer to introduction isogeometric concepts, elasto-plastic analysis ground support. concepts description excavation boundaries results less effort, since complex geom...

Transversal applications of 3D-printing (or Additive Manufacturing) have been recently implemented in the field Geomechanics. In a process, printed volume is obtained from successive layering adjacent soil filaments. this work, fabric an as-printed has carried out by combining Mercury Intrusion Porosimetry (MIP) tests and Scanning Electron Microscope (SEM) observations, with aim to highlight ho...

This paper investigates the consequences of time-dependent deformation on stress changes and resulting geomechanical risks from injection CO2 into geologic reservoirs. Using 3D fully coupled fluid flow-geomechanics simulations, it is shown that when occurs in caprock, shear decreases caprock but increases reservoir. The magnitude this transfer to reservoir affected by characteristic time scale ...

Abstract The horizontal stress profile plays an important role, extending from wellbore stability analysis to well completion optimization of tight gas reservoirs. When considering exploration fields with planned wells being drilled 5500-m TVD, it is imperative quantify tectonic effects at the location. In addition, accurately predicting and fracture initiation values in vertical required ident...

Generating a suitable hexahedral mesh for field-level coupled flow and geomechanics computation is still a challenging task. The lack of an analytical representation of the reservoir geometry makes generating a valid mesh for geomechanics a tedious and time-consuming endeavor. Indeed, usually the reservoir description comes as a static-model, i.e., corner-point geometry mesh, which is appropria...

KINE3D: a New 3D Restoration Method Based on a Mixed Approach Linking Geometry and Geomechanics — We developed a new methodology for 3D restoration by coupling a geometric modelling software and a mechanical finite-element code. This method allows the geologist to impose the displacement on the main faults in order to get an adequate restored geometry and to compute the 3D strain and stress fie...

Article history: Received 16 April 2012 Received in revised form 16 July 2012 Accepted 19 September 2012 Available online 17 December 2012

Previous developments on zero-thickness interface elements for coupled HydroMechanics problems are briefly described, followed by some new geomechanical applications, particularly to hydraulic fracture in rock. The results are compared satisfactorily to approximate formulas and previously published numerical results. Once verified, the model is applied to new cases to show the capabilities of t...