Mixed-integer linear optimization for optimal lift-gas allocation with well-separator routing

Andrés Codas and Eduardo Camponogara

European Journal of Operational Research, 2012, vol. 217, issue 1, 222-231

Abstract: 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.

Keywords: Integer programming; Piecewise linearization; Lifted cover cuts; Lift-gas allocation; Routing constraints (search for similar items in EconPapers)
Date: 2012
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:ejores:v:217:y:2012:i:1:p:222-231

DOI: 10.1016/j.ejor.2011.08.027

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