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Improved Recovery Methods PET560

Improved oil recovery (IOR) techniques are employed extensively in the oil industry to minimize the amount of oil that is left behind at the time of an oil-field's abandonment. There are several such methods available today which are employed after primary oil production and/or secondary water injection schemes to achieve higher oil recovery factors. Each oil field presents a unique opportunity and case that requires a thorough assessment and evaluation of several factors such as for example formation (rock and fluids) properties, field characteristics (depth, location, size, etc.), field operational restrictions, availability and costs of injection fluids as well as their interaction with the formation rock and fluids that an engineer must consider, screen, study and analyze before deciding, based on sound technical and economic criteria, which IOR method should apply to maximize oil recovery from a given asset.


Course description for study year 2021-2022

Facts
Course code

PET560

Version

1

Credits (ECTS)

10

Semester tution start

Spring

Number of semesters

1

Exam semester

Spring

Language of instruction

English

Learning outcome

Knowledge:

The course provides an introduction to techniques, principles and effectiveness of various improved oil recovery methods. Specific emphasis is placed on improved oil recovery process mechanisms and factors influencing both microscopic and macroscopic oil recovery performance prior to embarking on presenting the most relevant methods. Analytical and laboratory evaluation techniques used in conjunction with reservoir simulation studies to evaluate the viability and effectiveness of a given improved oil recovery method in maximizing the oil recovery factor are discussed and examples demonstrating their applicability are presented. Various water- and gas-based improved oil recovery methods are covered in the course including polymer, miscible and immiscible gas injection, surfactant and alkaline flooding as well as thermal recovery processes.

Skills:

After completing this course the student should be able to have a thorough understanding and working knowledge of the most important aspects of the currently employed improved oil recovery techniques to increase oil recovery. 

Competence:

Improved oil recovery techniques are employed extensively in the oil industry to minimize the amount of oil that is left behind at the time of an oil-field's abandonment. There are several such methods available today which are employed after primary oil production and/or secondary water injection schemes to achieve higher oil recovery factors. Each oil field presents a unique opportunity and case that requires a thorough assessment and evaluation of several factors such as for example formation (rock and fluids) properties, field characteristics (depth, location, size, etc.), field operational restrictions, availability and costs of injection fluids as well as their interaction with the formation rock and fluids that an engineer must consider, screen, study and analyze before deciding, based on sound technical and economic criteria, which improved oil recovery method should apply to maximize oil recovery from a given asset.

Content

The course covers the main topics of 'Enhanced Oil Recovery' 2nd Edition 2018 by Green and Willhite, especially:

  • Introduction to EOR Processes
  • Microscopic Displacement of Fluids in a Reservoir
  • Displacement in Linear Systems
  • Macroscopic Displacement of Fluids in a Reservoir
  • Mobility-Control Processes
  • Miscible Displacement Processes
  • Chemical Flooding
  • Thermal Recovery Processes

We refer to the book for more details. The extent at which each topic is covered may vary. Specific relevant papers may also be presented. 

Required prerequisite knowledge
None
Recommended prerequisites
PET500 PVT of Petroleum Reservoirs and Fluids, PET510 Computational Reservoir and Well Modeling
Exam

Written exams

Form of assessment Weight Duration Marks Aid
Written mid-term exam 1/2 3 Hours A - F
Written exam 1/2 3 Hours A - F

Continuous assessment consisting of two written tests. Both tests, and the mandatory lab reports, must be passed, or approved, in order to obtain a grade in the course. No resit exam is offered. Students who fail or want to improve their grade can take one or both of the tests, or the mandatory reports again the NeXT time the course is offered. 

Coursework requirements
Labaratory Report 1, Labaratory Report 2, Labaratory Report 3, Labaratory Report 4

Four laboratory exercises will be conducted during the semester. Passed/Failed

Students must turn in their individual reports 

Course teacher(s)
Course coordinator: Pål Østebø Andersen
Course coordinator: Raoof Gholami
Course coordinator: Ingebret Fjelde
Head of Department: Alejandro Escalona Varela
Method of work
Lectures and laboratoy work
Open for
Petroleum Engineering - Master of Science Degree Programme Petroleum Engineering - Master`s Degree programme in Petroleum Engineering, 5 years
Course assessment
Standard UiS protocol
Overlapping courses
Course Reduction (SP)
Enhanced oil recovery (MPE330) 5
Literature
The syllabus can be found in Leganto