Tactical planning in maritime transportation of crude oil

Siddiqui, Atiq Waliullah (2012) Tactical planning in maritime transportation of crude oil. Doctoral (PhD) thesis, Memorial University of Newfoundland.

[English] PDF (Migrated (PDF/A Conversion) from original format: (application/pdf)) - Accepted Version Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. Download (60MB) [English] PDF - Accepted Version Available under License - The author retains copyright ownership and moral rights in this thesis. Neither the thesis nor substantial extracts from it may be printed or otherwise reproduced without the author's permission. (Original Version)

Abstract

The global crude oil distribution network mainly comprises of ocean shipping links that make use of massive and exceedingly expensive oil tankers. Oil companies rely on these tankers to exploit the economies of scale. However, it also means stern planning and managerial challenges in the presence of uncertain oil demand, freight rates volatilities, high operating costs, long delivery lead times and the associated environmental risks. These challenges vary from long term or strategic issues such as distribution network design, to medium-short term tactical planning issues such as order delivery scheduling and vessel chartering, besides some other day-to-day operational issues On a thematic level, this work presents an integrated approach, through a compatible set of frameworks, to the key tactical planning problems faced by an oil supplier. More specifically, there are at least four major contributions. In the first contribution, we present a cost-of-spill approach for selecting tanker routes for maritime transportation of crude oil. The proposed method is in line with the Formal Safety Assessment (FSA) guidelines proposed by the International Maritime Organization. In the second contribution, we present a time dependent periodic scheduling approach that exploits the crude oil demand structure and resource characteristics. In the third contribution, we present a simulation-optimization based fleet management framework that overarches the proposed scheduling model. Finally, our last contribution integrates and extends the earlier approaches into scheduling model, which would cater to a manager's risk-cost preference by generating a Pareto frontier of non-dominated solutions. a single bi-objective risk-cost based tanker routing and delivery.

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