... reservoir geomechanics fault reactivation normal stress basement reservoir characterization pore pressure deeper depth poroelastic stress coefficient upstream oil & gas fluid injection fault plane enhanced recovery cfs earthquake injection oklahoma case 1 ghassemi damage...

... carbon dioxide injection deep underground including investigation on fault reactivation and potential leakage. We first test the flow simulator, matching the numerical solution with a pre-existing solution for density, viscosity, and mass fraction of dissolved carbon dioxide and water in aqueous...

.... A numerical analysis by a 3D FE-IE elasto-plastic geomechanical simulator has been carried out to cast light in this respect, by investigating the mechanisms and the critical factors that can be responsible for a fault reactivation during the various stages of UGS in reservoirs located in the Rotliegend...

..., it is demonstrated that these losses can be consistently linked to downhole pressures exceeding the predicted fault reactivation pressures and loss rate can be associated with the lithology of the damage zone. These observations provide multiple examples on how recognizing the lost circulation mechanism associated...

.... Furthermore, higher injection pressure seems to enhance fault transmissibility, probably due to additional micro-fracturing. fault reactivation Reservoir Characterization acoustic emission fracture network experiment injection pressure Earthquake transmissibility shear displacement giwelli...

... by poroelasticity, thermoelasticity and fracture compression are investigated. With Mohr-Coulomb failure criterion, we calculate the fault reactivation potential around the fracture. Then, two case studies of constant water injection into a hydraulic fracture are presented. This work is of interest...

... ABSTRACT: Poroelastic stress changes in response to production can result in fault reactivation. The combined effects of production and injection on fault reactivation, especially for unconventional reservoirs where injection occurs in layers other than the produced interval, are not readily...

... mechanisms that cause fault reactivation are unclear. This study reports a systematic analysis of several felt induced seismicity field observations using geomechanical models to understand the mechanisms that cause the fault reactivation. The field observations indicate that felt induced seismicity occurs...

... ABSTRACT: Fault reactivation in response to fluid injection into the subsurface is controlled by a number of site-specific and operational parameters. We investigate the effects of variable fluid injection rate on the stability of a nearby fault using three-dimensional fully coupled...

... to analyze the relation between changes in reservoir pore pressures and fault stress changes. We address the effects of fault strength, reservoir and fault geometry and the presence of a viscoelastic caprock on the timing of fault reactivation, the nucleation of seismic events and the main characteristics...

... ABSTRACT: Variations of internal pressure within reservoirs structurally compartmentalized by sealing faults induce changes in deformations and stresses. If these changes are significant, they can create favorable conditions for fault reactivation by shear or tensile modes. In that scenario...

... ABSTRACT: The potential of inducing fault reactivation by a synthetic nuclear waste repository in a clay-stone formation is here investigated. The target clay formation may be expected to be almost impermeable, having self-healing and long-term plastic properties, to make sure the canisters...

...). The marked delay between the start of reservoir depletion and the onset of seismicity has been interpreted as an indication that the in-situ stress conditions in the northern part of the Netherlands are non-critical. reservoir geomechanics depletion Upstream Oil & Gas fault reactivation fault...

... Abstract In this paper we summarize and compare numerical simulation results of injection-induced fault reactivation and seismicity associated with underground CO 2 injection and hydraulic fracturing of shale-gas reservoirs. Overall, the analysis shows that while the CO 2 geologic...

...1. INTRODUCTION Fault reactivation is an engineering problem that can be initiated by the connection of stimulated factures to the fault. Reactivation of a fault could result in environmental pollution owing to fluid migration, particularly in an offshore field. Another environmental risk...

... scenario fluid injection subsurface storage reactivation western australia reservoir geomechanics geometry fault reactivation geology permeability uplift reservoir characterization subsurface uncertainty upstream oil & gas geomechanical model rock property injection rate...

... it are affected by: poro- and thermoelastic phenomena as well as by fracture opening under the combined action of applied pressure and in-situ stress. A couple of numerical studies have been done for the on this for the purpose of analyzing the potential for fault reactivation resulting from pressurization...

... model comprising a normal fault. Comparative results are shown. Artificial Intelligence reactivate Upstream Oil & Gas fault plane Reservoir Characterization criterion equivalent homogeneous property kPa equivalent plastic strain reservoir geomechanics fault reactivation interface...

... Abstract In this study, a coupled poro-elasto-plastic Finite Element Method (FEM) is used to calculate a set of scenarios of fault reactivation which could occur. The potential for fault reactivation is estimated numerically for faults surrounding a well designed for drilling cuttings...

... that whereas it is very difficult to predict how much fault permeability could change upon reactivation, this process can have a significant impact on the leakage rate. Reservoir Characterization Upstream Oil & Gas fault reactivation reservoir geomechanics Fluid Dynamics subsurface storage co...