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Multiphase Flow in Pipes PET650

"PET 650 - Advanced Multiphase flow" is a combined  theory and project course, going deeper into the topic than in the course PET505 which combines directional drilling and well flow dynamics. Theory is based on lectures and the compendium "Multiphase Flow in Pipes, Wells and Open Systems" by Prof. Rune W. Time.  The potential scope of this course is much wider in applications than PET505. Depending on discussions with the participating students, the topics may range from sedimentology related issues, hydrology, porous  media flows, drilling, flow in pipelines, and even climate issues. The projects may also be selected from a wider range of applications, and will be agreed between student and teacher. Both theoretical/ numerical (simulation) and experimental laboratory projects are available. The projects can be used as  introductory  pre-projects for the MSc project.

Course description for study year 2021-2022

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Learning outcome

Knowledge:The course gives knowledge of multiphase flow in pipes, wells and open systems like separators and various components in process plants.

Abilities: The student will by completion of the course be able to carry out calculation of fluid fractions, pressure gradients and determine flow regimes in pipes. The project part will add abilities depending on topic. These may include knowledge on running CFD simulators for the numerical/tjheoretical projects, and increased knowledge on running experiments and instrumentation for experimental projects.

General competence: The general competence is connected to knowing how wells, pipelines and process units depend on multiphase flow behaviour. Also competence about multiphase flowmeter characteristics. These aspects are important in order for students to be able to critically evaluate complex flow processes. Other special competence depends on the project chosen.


Definitions of concepts related to single phase and multiphase flow in pipes.

Introduction to fluid phases and fluid-fluid interfaces.

Flow regimes in gas-liquid flow, oil-water flow and liquid particle flows.

Calculation of fluid fractions and pressure gradients.

Flow assurance.

Fluid flow and multiphase flow metering techniques and challenges

Use of Matlab for programming of equations. Introduction to numerical solutions and CFD.

Laboratory demonstrations of flow regimes.

Projects: Experimental project and/or project involving theory and numerical simulation. A separate assignment e.g. on measurement techniques for multiphase flow is usually a part of the report.

Due to limited lab and supervision capacity, the number of applicants admitted to the course is limited to 10 students. If the number of applicants for the course exceeds 10, then the 10 most qualified students will be selected based on grades and general qualifications.

Required prerequisite knowledge
PET505 Directional Drilling and Well Flow Engineering
Good background in physics and in fluid mechanics. The course PET 505 is needed as a minimum. Some background in linear algebra and differential equations is needed, as well as some programming knowledge, preferably using Matlab.
Recommended prerequisites
Some background in laboratory work and/or numerical simulation is recommended

Project report and oral presentation of project

Form of assessment Weight Duration Marks Aid
Project report 1/2 A - F
Oral presentation of the project 1/2 A - F

The project report and theoretical syllabus will be subject to oral examination after the presentation. The report counts 50% and the oral examination counts 50% for the total mark.

Course teacher(s)
Head of Department: Øystein Arild
Method of work
Lectures, project - assignments and problem solving. Supervised project and demonstrations in laboratory, together with computer simulations mainly using Matlab as programming language.
Open for
Admission to Single Courses at the Faculty of Science and Technology Petroleum Engineering - Master of Science Degree Programme Petroleum Engineering - Master`s Degree programme in Petroleum Engineering, 5 years Exchange programme at Faculty of Science and Technology
Course assessment
Normally by using forms (e.g. netbased) and / or discussions between students and teacher according to given accepted guidelines.
The syllabus can be found in Leganto