Scheduling and rescheduling strategies are used at several levels on a daily basis in the oil industry to among others have control on safety regulations, improve resource utilization and optimize profit. With the emerging integrated operations and focus on collaboration new work methods also become possible within scheduling.

Access to easily shareable information from multiple locations reduces the response time, which in turn make high performance decision support tools for rescheduling attractive. A rescheduling tool produces globally consistent schedule proposals based on information from the different disciplines involved in the planning activities. These proposals can be edited by the participants in the collaborative environment, and new feasible schedules are generated.

In this paper, several simplified scenarios have been executed to simulate and exemplify situations where the original schedule is deteriorated so that rescheduling must be applied to try to keep the schedule objective. In all scenarios our rescheduling strategies maintains the objectives of the original schedules. These scenarios are used to illustrate the potential of using collaborative environments in rescheduling processes.

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