ABSTRACT
In order to test the mechanical properties of cement under well conditions more closely, the cement must typically be cured or hydrated for the appropriate amount of time under the temperature and pressure conditions that are as close as possible to downhole conditions in the well. At laboratory tests of cement slurries it is important to specify the radius of thermal infl uence (physical “infi nity”). This permits determination of the distance from the axis of the wellbore’s model where a constant temperature should be maintained. The above mentioned formula is also used to estimate the radius of thermal infl uence. An example of calculations is presented.
