Abstract
In this study we suggest a procedure to examine cumulative cycle response vs. cumulative injection in cyclic steam stimulation (CSS) application. This integral process is aimed at capturing the residual effect of prior steam cycles as well as de-saturation and re-saturation of pore volume in the vicinity of the wellbore. The proposed plotting method provides a diagnostic tool for examining the impact of operational factors and can serve as a lumped parameter predictive tool given the actual responses of some prior cycles.
Calibrated cumulative plots are first developed from the early cycles and predictions are shown for successive cycles. The proposed approach is providing a workable graphical tool that can capture both the improved or deteriorating condition exhibited on cycle responses. It can then help in the design of optimal planning of injected steam for successive cycles.
