Courses

Applied Petrophysics (basic)

ByPeter Betts
Duration5 days

Business context

In the E&P business, integrated petroleum engineering studies and field development plans are management tools which are used to maximise economic recovery of hydrocarbons. Petrophysical engineers fulfil a key role in analysing and interpreting subsurface reservoir data, which form the basis for reservoir models. Understanding the methods used in petrophysical analysis, and the related uncertainty of the results and hence the derived models is essential knowledge for all E&P technical staff.

Who should attend

Staff in the exploration and production department with no or limited petrophysical background: petroleum engineers, seismologists, geologists, reservoir engineers, and drilling engineers.

Course content

Subjects that are covered are fundamental petrophysical relations, tool principles, modern interpretation methods and core measurements. The importance of interaction between seismology, geology, petrophysics, reservoir engineering and other disciplines is emphasized and illustrated. The main emphasis during the course is on practical application rather than extensive discussion around the theoretical background.

Shorter versions of the basic course lasting two, three or four days are also available on request. The client can decide in consultation with the trainer which topics covered in the full five day version can be dropped in the shortened versions.

Learning, methods and tools

Throughout the course work sessions will be held on PCs using customise Excel spreadsheets, which illustrate the processing methods used by commercial petrophysical analysis software. During the five days, several clastic and carbonate wells will have been evaluated using quicklook visual methods, as well as fairly detailed numerical analysis.

Day by day programme

Day 1
The role of petrophysics in exploration and production
Petrophysical principles
Field set-up and operations, including high angle hole equipment
Log quality control
Data sources (mud logs, core data, wireline logs etc.)
Basic tool principles (GR, SP, resistivity and porosity tools)

Day 2
Basic tool principles (continued)
Quick look lithology and fluid determination from log data
Saturation determination
Evaluation of shaly formations (basic treatment)

Day 3
Basic core analysis
Capillary pressure
Petrophysical SCAL measurements

Day 4
Permeability prediction
Cut-off criteria
Uncertainty ranges and probabilistic methods
Wireline formation testing

Day 5
Cased hole saturation determination and production logging
Cement bond evaluation
Wellbore seismic applications