A comparison of three metaheuristics for the workover rig routing problem

Glaydston Mattos Ribeiro, Gilbert Laporte, Geraldo Regis Mauri

Research output: Contribution to journalArticlepeer-review

37 Citations (SciVal)


The workover rig routing problem (WRRP) is a variant of the Vehicle Routing Problem with Time Windows (VRPTW) and arises in the operations of onshore oil fields. In this problem, a set of workover rigs located at different positions must service oil wells requesting maintenance as soon as possible. When a well requires maintenance, its production is reduced or stopped for safety reasons and some workover rig must service it within a given deadline. It is therefore important to service the wells in a timely fashion in order to minimize the production loss. Whereas for classical VRPTWs the objective is to minimize route length, in the WRRP the objective is to minimize the total lost production, equal to the sum of arrival times at the wells, multiplied by production loss rates. The WRRP generalizes the Delivery Man Problem with Time Windows by considering multiple open vehicle routes and multiple depots. This paper compares three metaheuristics for the WRRP: an iterated local search, a clustering search, and an Adaptive Large Neighborhood Search (ALNS). All approaches, in particular ALNS, have yielded good solutions for instances derived from a real-life setting.

Original languageEnglish
Pages (from-to)28-36
Number of pages9
JournalEuropean Journal of Operational Research
Issue number1
Publication statusPublished - 1 Jul 2012


  • Adaptive large neighborhood search
  • Clustering search
  • Iterated local search
  • Metaheuristics
  • Workover rig routing problem

ASJC Scopus subject areas

  • Computer Science(all)
  • Modelling and Simulation
  • Management Science and Operations Research
  • Information Systems and Management


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