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Title

SENSITIVITY ANALYSIS OF WATER FLOODING OPTIMIZATION BY DYNAMIC OPTIMIZATION

Pages

  93-105

Abstract

 ABSTRACT: This study concerns the scope to improve water flooding in heterogeneous reservoirs. We used an existing, in-house developed, optimization program consisting of a reservoir simulator in combination with an adjoint-based optimal control algorithm. In particular we aimed to examine the scope for optimization in a two-dimensional horizontal reservoir containing a single high permeable streak, as a function of reservoir and fluid parameters, which we combined in the form of 10 dimensionless parameters. We defined the parameter NPV IMPROVEMENT to indicate the improvement in net present value (NPV) that can be achieved through optimization. For initial screening of the effect of the dimensionless parameters, a two-level D-optimal DESIGN OF EXPERIMENTS (DOE) technique was used to obtain a linear RESPONSE SURFACE MODEL with the aid of 11 water-flooding simulations. As a result 8 dimensionless groups were selected for more detailed analysis, and a full quadratic NPV IMPROVEMENT model was constructed using a three-level D-optimal design using 50 simulations. It should be reminded that all the D-optimal matrix designs were generated by using commands of statistics Toolbox of MATLAB software. Finally, Pareto charts were plotted to visualize the sensitivity of the model as a function of the dimensionless parameters. Based on the present model we can draw the conclusion that the parameters L s/L (relative streak length), k max/k max streak (relative streak permeability) and the ratio of water cost and oil price have the largest effect on the scope for obtaining a high value of NPVimprovement .

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    APA: Copy

    GHARESHEIKLOU, A.A., & MOUSAVI DEHGHANI, S.A.. (2007). SENSITIVITY ANALYSIS OF WATER FLOODING OPTIMIZATION BY DYNAMIC OPTIMIZATION. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), 26(1), 93-105. SID. https://sid.ir/paper/533715/en

    Vancouver: Copy

    GHARESHEIKLOU A.A., MOUSAVI DEHGHANI S.A.. SENSITIVITY ANALYSIS OF WATER FLOODING OPTIMIZATION BY DYNAMIC OPTIMIZATION. IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE)[Internet]. 2007;26(1):93-105. Available from: https://sid.ir/paper/533715/en

    IEEE: Copy

    A.A. GHARESHEIKLOU, and S.A. MOUSAVI DEHGHANI, “SENSITIVITY ANALYSIS OF WATER FLOODING OPTIMIZATION BY DYNAMIC OPTIMIZATION,” IRANIAN JOURNAL OF CHEMISTRY AND CHEMICAL ENGINEERING (IJCCE), vol. 26, no. 1, pp. 93–105, 2007, [Online]. Available: https://sid.ir/paper/533715/en

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