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Skip to Search Results- 1Abtahi, Shaghayegh
- 1Aghaie, Ermia
- 1Ahmed, Ezz Q
- 1Arango Vasquez,Daniela
- 1Azadeh Ebrahimian Hosseinabadi
- 1Barrios Briceno, Javier
- 5Chen, Weixing (Chemical and Materials Engineering)
- 5Luo, Jingli (Chemical and Materials Engineering)
- 2Li, Dongyang (Chemical and Materials Engineering)
- 2Li, Yong (Civil and Environmental Engineering)
- 2Mitlin, David (Chemical and Materials Engineering)
- 2Thundat, Thomas (Chemical and Materials Engineering)
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Fall 2019
An evaluation of the resistance of two different X70 pipeline steels to hydrogen-induced cracking in severe (pH 2.7 and 1 atm H2S) and intermediate (pH 5.5 and 1 atm H2S) sour service conditions was undertaken. The two steels used in this work, X70-X and X70-B, were selected based on their...
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Evaluation of Methods Used to Estimate the Required Thrust Force for Direct Pipe Installation Within Clayey Soil Based on Case Studies
DownloadSpring 2019
There is a unique technology called Direct Pipe Installation (DPI) developed by Herrenknecht Tunnelling Systems (Herrenknecht) which is becoming more a prominent construction method in the pipeline crossing industry. This construction technique is completed by connecting a micro tunnel boring...
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Finite Element-based Stress Intensity Factor Estimation for Fatigue Crack Growth Simulation and Stochastic Filtering-based Fatigue Crack Growth Prediction of Pipelines
DownloadSpring 2022
Fatigue cracking is one of the major integrity threats to oil and gas pipelines. Having a reliable trajectory of fatigue crack growth once detected is very crucial for decision making regarding integrity threat management. In-line Inspection (ILI) tools, and other non-destructive methods are used...
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Geomorphic landform design and long-term assessment of tailings storage facilities in the Athabasca oil sands
DownloadFall 2019
In stark contrast to historic mine abandonment, current international best practices in mine reclamation call for geomorphic designs and stability (physical and chemical) for a minimum of 1000 years. Current regulations in Alberta state that post-mining landforms shall be maintenance-free with...
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Growth behavior of surface cracks in pipeline steels exposed to near-neutral pH environments
DownloadFall 2013
This study is part of a larger study designed to help a consortium of pipeline operators replace current (very expensive) approaches to managing stress corrosion cracking (SCC) concerns in near-neutral pH (NNPH) environments with mathematical models that predict SCC growth rates. This could...
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Fall 2016
Slurry pipelines are widely utilized in most mining operations to transport the raw materials and the tailings. These pipelines typically suffer from high wear rates. For example, in Canada’s oil sands industry, pipeline wear rates of 1 cm/yr are considered representative. To generate and measure...
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Investigation of Corrosion and Crack Morphology Behavior under Disbonded Coatings on Pipelines
DownloadFall 2015
Coating disbondment on pipelines is a common phenomenon that leads to exposure of the pipeline metal to the surrounding soil and ground water solutions. The exposure of pipelines to those corrosive environments is associated with development of corrosion and Stress Corrosion Cracking (SCC) on the...
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Investigation of Highly Corrosion Resistant and Electrically Conductive Coatings on Metal Bipolar Plates Used in Polymer Electrolyte Membrane Fuel Cell
DownloadSpring 2019
There are apparent technical and economic advantages to replace carbon-based bipolar plates using metal bipolar plates (MBP) for applications in polymer electrolyte membrane fuel cell (PEMFC). However, MBP suffers from corrosion in the acidic environment of PEMFC, and the subsequently formed...
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Investigation of Surface Crack Growth Behaviour Under Variable Pressure Fluctuations in Near-Neutral pH Environments
DownloadFall 2017
The goal of this investigation was to study the corrosion fatigue behaviour and mechanisms of surface cracks, semi-elliptical in shape, when exposed to near-neutral pH environments conducive to the environments experienced in the field. To better simulate field conditions, while avoiding the...
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Investigation Using Polymer Additives to Mitigate Erosion in Multiphase Turbulent Pipe Flow
DownloadSpring 2019
Long chained polymers were evaluated for their impact on reducing pipe erosion during two-phase flow. The research study was compartmentalized into three categories. One of the components of this study investigated the erosion of different materials in an attempt to find a faster eroding...