Denis Schiozer

Universidade Estadual de Campinas

Model-based Petroleum Field Management in Three Stages: Life-cycle, Short-term, and Real-time

The objective of the presentation is to show new results from a methodology to a short-term management of petroleum fields. We consider three stages (life-cycle, short-term, and real-time) to perform a model-based field management process following the general methodology proposed by Schiozer et al. (2019). Life-cycle optimization is the first stage of the process and generates control setpoints for short-term analysis; it is divided in 3 parts: (1) fit-for-purpose models construction, (2) data assimilation for uncertainty reduction, and (3) life-cycle production optimization. The results are used as base for short-term optimization. Short-term optimization is then used to improve the quality of the solutions considering the control parameters of the next cycle (considering a closed-loop procedure). Real-time solution is then implemented considering operational disturbances from real operations. The methodology in being applied to benchmark cases based on typical carbonate fields from the Brazilian Pre-salt, with light oil and submitted to Water-Alternate-Gas injection with CO₂ (WAG-CO₂).