Offshore drilling projects can be as complex as they are costly, and many problems can arise during the drilling and extraction of sub-sea pipelines petroleum, including environmental issues. The oil and gas industry relies on multi-phase, multi-component flow techniques to transport substances such as gas, oil and water through horizontal and sub-sea pipelines. Artic and offshore drill sites can be particularly challenging due to hydrate formation in the transport horizontal and sub-sea pipelines.

This study investigates the feasibility of using a four-phase, four-fluid flow Multi-Component through horizontal pipelines to move a four-phase multi-component flow (oil, gas, water, and sand particles) through submerged pipelines. In order to accurately gauge the multi-component mixtures’ hydro- and thermo-dynamic properties, fluid equilibrium and phase-behavior models are constructed. As well, to examine various interrelated factors such as momentum, mass and heat transfer occurring between pipelines walls and flow, a series of equations are developed.

In the present work, the effect of pressure and temperature on multi-phase flows in horizontal and sub-sea pipelines is investigated. As well, models of flow patterns and pressure drops are created specifically for horizontal and sub-sea pipeline environments. Note that the terms “Four-Phase and Multi-Component flow” are used interchangeably in this study. And Create pressure drops and flow behavior models of multi-phase flows for horizontal and sub-sea pipelines.

Furthermore, multi-phase flows may occur in any one of the following combinations: gas-liquid, gas-liquid- solid, gas-liquid-liquid-solid, An example of a , gas-liquid-liquid-solid flow is four immiscible fluids and component (e.g., gas, water, oil and solid), immiscible liquids being those which do not form a homogeneous mixture when added together. In terms of practical applications of multi-phase and multi-component flows, water injected into an oil pipelines helps to decreases both the pressure gradient and flow resistance.

Keywords: Four-Phase Flow, Multi- Component, Three-Phase Flow, Sub-sea Pipelines, phase-behavior .

 


Investigation Four-Phase Multi-Component Flow Techniques in Horizontal and Sub-Sea Pipelines

Division / Sponsors: 
Pipeline Systems Division

Paper Proceedings: https://asmedigitalcollection.asme.org/IPC/IPC2020/volume/84447

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