The CS module allows geosteering based on comparison actual and synthetic logs. A distinctive aspect of the method is that it does not require expensive images for dips’ calculation and may well prove yourself even if geologist has GR curve only. Synthetic log is constructed on the basis of two-dimensional reservoir’ model based on the well’s trajectory, dips, and structural bending formation of lateral heterogeneities thickness layers.
The result is the definition of the bore stratigraphic position in the formation, as well the formation structure prognosis.
The actual horizontal well log is matched with the model synthetic log; then the model is upgraded for the maximum matching of the synthetic and actual logs. Thus, the wellbore stratigraphic position in the formation is defined and the formation structure performance is predicted basing on its regional dip angle and actual and synthetic logs matching. If necessary, the horizontal well path is corrected while drilling.