Page 23 - Primer on Enhanced Oil Recovery

14 Primer on Enhanced Oil Recovery

Figure 2.4 Field example of reserves assignation to various categories in line with
referencing criteria and for the field development status.

Figure 2.5 Systematic approach for reserve assessment.

apply to Prospective resources. An example how this can be applied to the oil field
is presented on Fig. 2.4.

2.2.1 Basic principles of SPE-PRMS classification in the
assessment of hydrocarbon reserves and resources

The process of estimating reserves and resources is carried out on the basis of draw-
ing up a project for developing hydrocarbon deposits. The project contains: plans
for the hydrocarbon amount assessment as initial geological reserves and resources,
identification of the amount of recoverable reserves for each sub-project, project
classification based on its current stage and the likelihood of project reaching indus-
trial significance.
As project develops, the categorization of reserves and resources, conducted ear-
lier, is refined. This is done on the basis of careful data analysis and can be system-
atized as presented at Fig. 2.5.
Below are few definition used to implement the systematic approach.