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Smart Water Injection to the Oil Fields for Enhancing the Recovery Factor

Malekpour, Hossein | 2020

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 53299 (05)
  4. University: Sharif University of Technology
  5. Department: Electrical Engineering
  6. Advisor(s): Farhadi, Alireza
  7. Abstract:
  8. The objective of this MSc. thesis is to study the impact of the reactive method and the enhanced reactive method on enhancing the exploitation efficiency of Iran's offshore oil reservoir. This is achieved by enhancing production and the recovery factor of the reactive methods with respect to the currently used proactive method. Unlike the currently used proactive method that implements a fixed rate injection strategy, in this MSc. thesis water is injected to reservoir with multi-rate for the pressure stabilization of the reservoir. In order to scale up this strategy, the ensemble Kalman filter is used to frequently update the reservoir mathematical model using the available measurements from the reservoir. Then, this updated mathematical model for the reservoir is used to calculate the optimal injection rate. This is done by implementing a nonlinear model predictive control strategy that maximizes the injection net present value. It is shown in this thesis that the reactive methods significantly enhance production and the recovery factor from Iran's offshore reservoir respect with the currently used proactive method. This is achieved by implementing a multi – rate injection strategy
  9. Keywords:
  10. Ensemble Kalman Filter ; Water Injection ; Enhanced Oil Recovery ; Nonlinear Predictive Control ; Injection Reactive Method

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