course-details-portlet

TPG4185

Formation Mechanics

Credits 7.5
Level Third-year courses, level III
Course start Autumn 2025
Duration 1 semester
Language of instruction English
Location Trondheim
Examination arrangement School exam

About

About the course

Course content

Reservoir geomechanics: Introduction to poroelasticity theory. Reservoir compaction, linear elastic model and inelastic effects. Surface subsidence. Stress evolution during production. Compaction as a drive mechanism. Stress effects on porosity and permeability. Coupled geomechanic reservoir simulation. Link to 4D-seismics. Borehole stability: Diagnostics. Critical mud weight limits to prevent hole collapse and mud losses. Effects of temperature and mud composition on borehole stability. Stability of deviated and horizontal holes. Effects of plasticity. Modelling of borehole stability. Sand and particle production: Basic mechanisms. Sand control. Sand prediction. Volumetric sand production. Hydraulic fracturing: Initiation and growth of hydraulic fractures. Thermal fracturing during water injection. Use of fracturing during simulation, for stress determination, and for waste storage.

Learning outcome

Knowledge: The students shall understand how stresses change as a result of fluid withdrawal from or injection into the subsurface, and how such changes influence subsurface storage of CO2 and other waste materials, recovery of petroleum or water (e.g. geothermal energy) from subsurface reservoirs, borehole stability during drilling and production.

Skills: The students shall be able to perform calculations of induced stresses within and outside subsurface reservoirs, including compaction / extension and surface subsidence / uplift and estimates of cap rock integrity, mud weight window for stable drilling, critical drawdown and estimated produced mass of solids (e.g. sand, chalk) during fluid production, plus well pressure for initiation of hydraulic fracturing and simple estimates of fracture propagation.

General competence: The students shall develop their ability to work in teams solving multidisciplinary tasks, and obtain experience in presentation of their own work.

Digital component: Through their group exercise the students will learn how to use simple models.

Assessment of research: Through a group project, the students will learn how to read and assess peer-reviewed scientific papers, and present the results orally.

Learning methods and activities

Lectures, compulsory exercises and two group projects. There are compulsory exercises through the semester. Students will participate in seminars linking field practice to the theoretical part of the course, and accomplish two semester projects (in groups or individually) and present the results orally and in writing. This work is compulsory. Evaluation of the course is done by a reference group consisting of students in collaboration with the responsible professor.

Compulsory assignments

  • Exercises

Further on evaluation

Written exam counts 100 % of the grade in the course. Compulsory exercises (numbers will be specified at the start of the semester) and group or individual work based on seminars. If there is a re-sit examination, the examination form may be changed from written to oral.

Course materials

Recommended textbooks:

Zoback, M. D. (2010). Reservoir Geomechanics. Cambridge University Press.

Fjær, E., Holt, R.M., Horsrud, P., Raaen, A.M., Risnes, R.: "Petroleum Related Rock Mechanics", Elsevier 2021.

Curriculum will be given at semester start. Presentations from lectures are provided.

Credit reductions

Course code Reduction From
SIG4054 7.5 sp
This course has academic overlap with the course in the table above. If you take overlapping courses, you will receive a credit reduction in the course where you have the lowest grade. If the grades are the same, the reduction will be applied to the course completed most recently.

Subject areas

  • Formation Evaluation
  • Rock Mechanics
  • Deep drilling Engineering
  • Petroleum Engineering
  • Geotechnical Engineering
  • Geophysics
  • Technological subjects

Contact information

Course coordinator

Department with academic responsibility

Department of Geoscience

Examination

Examination

Examination arrangement: School exam
Grade: Letter grades

Ordinary examination - Autumn 2025

School exam
Weighting 100/100 Examination aids Code D Date 2025-12-10 Time 15:00 Duration 4 hours Exam system Inspera Assessment
Place and room for school exam

The specified room can be changed and the final location will be ready no later than 3 days before the exam. You can find your room location on Studentweb.

Sluppenvegen 14
Room SL510
19 candidates

Re-sit examination - Summer 2026

School exam
Weighting 100/100 Examination aids Code D Duration 4 hours Exam system Inspera Assessment Place and room Not specified yet.