Formation Evaluation

Injectivity testing is a procedure used to estimate reservoir properties by injecting a fluid (typically water) into the reservoir. Among others, properties such as permeability and reservoir connectivity can be inferred from the study of pressure variations during the injection period. Another stage can follow the injection period, the static period when the well is closed, and the pressure decreases.

Recently, the injectivity test has received more attention because it is considered an operationally safe procedure compared to other techniques usually adopted in well testing, as well as avoiding the release of fluids or their combustion, with low environmental impact. 

Regarding the formation evaluation, we are developing analytical models capable of describing the pressure behavior in oil reservoirs, considering different well and reservoir configurations, and focusing on injectivity tests. We also study the flow behavior in reservoirs with multiple layers and develop techniques for estimating parameters of interest in reservoir engineering.