In this study, several predictive enhanced oil recovery (EOR) techniques ar
e used to evaluate potential thermal oil recovery techniques that could be
applied on a very heavy oil (10-12 degrees API) field located in Southeast
Turkey. Two of the EOR techniques were found to be applicable after the scr
eening process: in situ combustion and steam injection. Sensitivity of the
processes to several operating parameters, such as steam injection rate, ai
r injection rate, and steam quality, were established. It was observed that
initial project life was not critical in steam injection. However, at high
er air injection rates project life was shorter for in situ combustion. As
a result of steam-flood and in situ combustion model applications, it was o
bserved that the steam-flood model provided higher recoveries and longer pr
oject lives with low residual oil saturation.