Location and sizing of offshore platforms for oil exploration

Article Abstract:

The problem of location and sizing of offshore platforms for oil exploration is modeled as an integer programming multicapacitated plant location problem. Redundant constraints that yield stronger continuous relaxation and generate sharp lower bounds allow the application of a general-purpose integer programming code to medium-size problems, while a Tabu search heuristic is usedfor larger problems. Results show the feasibility of using extended lists of forbidden movements and variable size tabu lists to minimize computation time and improve the quality of solutions. The model is being used with plans for expansion by the Brazilian state-owned PETROBRAS.

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Variable neighborhood search: principles and applications

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Research is presented describing the study of local search algorithms to maximize subroutines and develope a neighborhood search based on variable functions.

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Generation of efficient frontiers in multi-objective optimization problems by generalized data envelopment analysis

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Research is presented describing the development of a design variable measurement models to properly analysis data through multi-objective optimization.

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