A study to determine the cement slurry behaviour to prevent the fluıd migration

In this study, the effect of free water, which is the basic quality property of API G-Class cement, on fluid migration potential has been tested for different origin Class-G cement samples (Class G-1, 2 and 3), in combination with different physical conditions. In order to justify the quality of each cement sample, standard API G-Class quality tests were performed. The free fluid values of different origin Class-G cement samples (Class G-1, 2 and 3) were determined as %2.5, %5 and %3.2 respectively. It was found that the Class G-1 cement with the lowest free fluid content has the lowest potential for fluid migration. Moreover, static gel strength analyzer (SGSA) is used to measure the static gel strength of cement slurries to determine the time to complete transition period.