TPG4175 - Petrophysics - Well Logging, Fundamentals


Examination arrangement

Examination arrangement: Home examination
Grade: Letters

Evaluation Weighting Duration Grade deviation Examination aids
Home examination 100/100 4 hours

Course content

This course is a "must have" for anyone working with the subsurface within the petroleum industry. Well logging provides data to answer fundamental questions regarding petrophysical, geological and mechanical properties required to evaluate, develop and produce a field. The course covers fundamental petrophysical concepts and equations. The following well logging measurements are discussed: resistivity, natural gamma radiation, neutron porosity, density, photoelectric absorption, acoustic/sonic, nuclear magnetic resonance, and formation pressure. Further topics include the measurement environment, geometrical considerations in a borehole, environmental corrections, and the link between the measured parameters and the rock's porosity, permeability, fluid/gas saturation, lithology and clay content. Through exercises and projects the students will learn how to interpret well log data.

Learning outcome

Ingress: The course gives insights into the role of borehole measurements in the search for and evaluation of hydrocarbon reservoirs. The course covers a number of measurement methods, and how these are used to determine important rock parameters such as porosity, permeability, water saturation and the rock types along the borehole.

Knowledge: The students learn to understand and to use the following:

  • Fundamental petrophysical concepts and equations. How does the composition of the rock influence the measurements we do and important petrophysical parameters like porosity, permeability and saturation.
  • The most important log measurements used in boreholes: Resistivity, natural gamma radiation, neutron porosity, density, photoelectric absorption, acoustic measurements, formation pressures, nuclear magnetic resonance and more.
  • The measurement environment in a borehole and environmental corrections of the data.
  • Find how the measured properties can be used to determine the porosity, permeability, water/hydrocarbon saturation, shale content and rock type.

Skills: The students are expected to understand and to make simple interpretations of the more common log measurements that are made in a borehole. They should be able to determine the main lithologies and estimates of porosity, saturation and permeability, and which fluid types, water, oil or gas, are present in the formations.

General competence: During group work the students learn to cooperate and to take responsibility for their part of the assignments given. By working with real data from the field, they learn to understand that real data can be uncertain and that one has to use common sense and understanding in order to find good answers to the interpretation problems.

Learning methods and activities

Lectures and group work. Compulsory exercises. The course is given in English if international master's students attend the course. The course is evaluated by a reference group.

Compulsory assignments

  • Exercises

Further on evaluation

If there is a re-sit examination, the form of assessment may be changed from written to oral examination.

Specific conditions

Compulsory activities from previous semester may be approved by the department.

Course materials

Compendium, lecture notes, correction charts. Articles. Well log data from the Norwegian Continental Shelf.

Credit reductions

Course code Reduction From To
SIG4050 7.5
TPG5120 7.5 AUTUMN 2010
More on the course



Version: 1
Credits:  7.5 SP
Study level: Third-year courses, level III


Term no.: 1
Teaching semester:  AUTUMN 2021

Language of instruction: English

Location: Trondheim

Subject area(s)
  • Geophysical Interpretation
  • Petroleum Geosciences
  • Petroleum Engineering - Production Engineering
  • Petroleum Engineering - Drilling Engineering
  • Petroleum Engineering - Reservoir Engineering
  • Petroleum Geology - Sedimentology
  • Formation Evaluation
  • Petrophysics
  • Petroleum Production/Well Technology
  • Petroleum Geophysics
  • Well Logging
  • Deep drilling Engineering
  • Petroleum Engineering
  • Petroleum Geology
  • Petroleum Production
  • Resource Geology
  • Reservoir Engineering
  • Applied Geophysics
  • Geophysics
  • Geology
Contact information
Course coordinator: Lecturer(s):

Department with academic responsibility
Department of Geoscience and Petroleum


Examination arrangement: Home examination

Term Status code Evaluation Weighting Examination aids Date Time Examination system Room *
Autumn ORD Home examination (1) 100/100





Room Building Number of candidates
  • * The location (room) for a written examination is published 3 days before examination date. If more than one room is listed, you will find your room at Studentweb.
  • 1) Merk at eksamensform er endret som et smittevernstiltak i den pågående koronasituasjonen.

For more information regarding registration for examination and examination procedures, see "Innsida - Exams"

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