Investigation of pressure and temperature gradient in four-phase flow in a complex horizontal pipeline
The oil and gas (O&G) industry uses multi-phase and multi-component pipeline flows to move product from one site to another or to different areas within the same site. In extreme environments, such as offshore or the Arctic, the development of four-phase flows in a complex pipeline can bring eve...
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| Format: | Thesis |
| Language: | English |
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Memorial University of Newfoundland
2021
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| Online Access: | https://research.library.mun.ca/15296/ https://research.library.mun.ca/15296/1/thesis.pdf |
| Summary: | The oil and gas (O&G) industry uses multi-phase and multi-component pipeline flows to move product from one site to another or to different areas within the same site. In extreme environments, such as offshore or the Arctic, the development of four-phase flows in a complex pipeline can bring even more challenges to the project. Jumpers and bends need to be able to is to withstand pressure drops and hydrodynamic loads from internal multi-phase flows and the current, respectively. The study outlines the development of an experiment to investigate of pressure and temperature gradients in four-phase flows in a complex pipeline. Due to the excessive temperatures and pressures of the oil transport pipeline system, the main pipes include shorter pipes (bends and jumpers) that are attached to the manifold at the pipeline. These shorter pipes are used to enable expandability and prevent system failure. The present work examines the practicality of applying a system of four-phase, four-fluid flows for transporting a multi-phase flow (sand, water, gas, and oil) along a flow loop horizontal pipeline with many multiple bends and jumpers. This experimental set-up can be used for investigating a wide variety of multi-phase flow problems considered in the this research. As a means to precisely measure and predict the characteristics of thermo- and hydro-dynamic multi-component mixtures, models representing the multi-phase behavior and equilibrium phase are created and tested. Additionally, the study looks at heat transfer, mass, and momentum in both the flow and the pipeline walls, and offers equations to describe their interrelationships. Another focus of this research is to obtain a Computational Fluid Dynamics (CFD) investigation of multi-phase flow phenomena in order to characterize the impact of pressure gradients and flow regimes due to various types of phase flow techniques used in the petroleum industry and in horizontal pipelines. The results of this thesis offer fundamental and practical guidance for the analysis ... |
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