کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
478463 | 1446086 | 2012 | 10 صفحه PDF | دانلود رایگان |

The lift-gas allocation problem with well-separator routing constraints is a mixed-integer nonlinear program of considerable complexity. To this end, a mixed-integer linear formulation (compact) is obtained by piecewise-linearizing the nonlinear curves, using binary variables to express the linearization and routing decisions. A new formulation (integrated) combining the decisions on linearization and routing is developed by using a single binary variable. The structures of both formulations are explored to generate lifted cover cuts. Numerical tests show that the solution of the integrated formulation using cutting-plane generation is faster in spite of having more variables than the compact formulation.
► Models for lift-gas allocation in oil wells with well-separator routing.
► MILP models obtained by piecewise linearizing the nonlinear well production curves.
► Cutting planes based on knapsack covers for the MILP models.
► A computational analysis comparing the models and impact of cutting planes.
Journal: European Journal of Operational Research - Volume 217, Issue 1, 16 February 2012, Pages 222–231