Browsing Theses by Supervisor "Gracie, Robert"
Now showing items 1-11 of 11
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Advances in Hydraulic Fracture Simulation - Dynamic and Quasi-static Analysis
(University of Waterloo, 2019-03-05)Hydraulic fracturing (HF) is an effective technique for permeability enhancement of conventional and unconventional reservoirs. HF is performed by injecting a fluid (usually water-based), sand, and chemicals into a formation ... -
Closed Loop Geothermal System Design
(University of Waterloo, 2022-06-17)In contrast to other renewable sources (e.g., wind and solar) that may only be intermittently available throughout a day or year, geothermal resources provide a carbon-free and sustainable source of energy for base-load ... -
Computationally Efficient Extended and Stabilized Finite Element Methods for Multiphase Carbon Sequestration Modelling
(University of Waterloo, 2016-09-01)Carbon sequestration in deep saline aquifers has been proposed for long term storage of CO2 as an alternative to the release of CO2 into the atmosphere. In this thesis a computationally efficient numerical model that ... -
Dislocation Dynamics for High Strain-Rate Plasticity: Inertial and Thermal Effects
(University of Waterloo, 2017-07-26)There has been a trend of miniaturization in recent technological advances, particularly through the development of microelectromechanical systems (MEMS). To cope with the demand for increasing performance from ever smaller ... -
Inertial, Transient, and Turbulent Flow through Deformable and Propagating Fractures: Theory and Computational Engineering
(University of Waterloo, 2023-07-20)Fluid flow in deformable fractures is important to many natural and industrial geological engineering applications including contaminant transport, geothermal energy, and hydraulic stimulation. Large-scale simulations of ... -
The Influence of Jointed Fabric and Stress Ratio on Deformation and Fluid Flow
(University of Waterloo, 2017-01-24)There are remarkable volumes of hydrocarbon resources in low-permeability naturally fractured rock masses (NFRs) characterized by naturally occurring discontinuities. Natural fractures are one of the most important factors ... -
Modelling of Multistage Hydraulic Fracture Operations in Unconventional Resources – The Application of Geomechanics and Field Data to the Optimization of Fracture Spacing and Production
(University of Waterloo, 2016-06-08)Massive multistage hydraulic fracturing using horizontal wells has been an integral part of the natural resource industry in Canada. The process uses long horizontal wells divided into many stages to access large volumes ... -
Numerical Modeling of Nonlinear Problems in Hydraulic Fracturing: Fracture Propagation, Proppant Transport, and Shear Dilation
(University of Waterloo, 2020-05-05)Hydraulic fracturing is a stimulation technique in which fluid is injected at high pressure into low-permeability reservoirs to create a fracture network for enhanced production of oil and gas. It is the primary purpose ... -
Simulation of Hydraulic Stimulation: Acoustic Wave Emission in Fractured Porous Media Using Local and Global Partition-of-Unity Finite Element
(University of Waterloo, 2018-09-25)Hydraulic Fracturing (HF) is an effective stimulation process for extracting oil and gas from unconventional low-permeable reservoirs. The process is conducted by injecting high-pressure fluids into the ground to generate ... -
Strategically Coupled Inertial Flow and Interfaced Evolution (SCI-FIE) Models for Dissolution Mining
(University of Waterloo, 2022-08-23)Mineral dissolution or dissolution mining is a technology for underground mineral extraction. The space developed after the mining may be a desirable reservoir for the storage of natural gas and hydrocarbons or compressed ... -
Up-Scaling Distinct Element Method Simulations of Discontinua
(University of Waterloo, 2017-01-20)Pre-existing fractures significantly influence the geomechanical response of the rock mass at the reservoir scale. For geomechanical applications, these natural fractures need to be considered in the mechanical response ...