WELL ACTIVITY SCHEDULING -- AN APPLICATION OF CONSTRAINT REASONING

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WELL ACTIVITY SCHEDULING -- AN APPLICATION OF CONSTRAINT REASONING

Geir Hasle,R. C. Haut,B. S. Johansen,T. S. Ølberg-2008-04-01

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TL;DRAbstract

The relatively low level of oil prices has in the past years drawn attention to cost reduction remedies in oil companies. One way of reducing costs is to improve coordination of activities and resources. The production of oil offshore involves a substantial number of activities in a set of wells. These activities have to be coordinated in order to obey various types of constraints and, at the same time, optimize on criteria such as the production level. Well Activity Scheduling (WAS) deals with the proactive coordination of these activities to form Well Activity Schedules, as well as the dynamic maintenance of these schedules over time. In a cooperative project affiliated with the Esprit project TRUTH, Saga Petroleum a.s. and SINTEF Informatics have studied the WAS problem. In the project we have developed a constraint model, performed problem analysis, and developed a prototype system for WAS. The prototype system includes functionality for defining a particular WAS problem and genera

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The relatively low level of oil prices has in the past years drawn attention to cost reduction remedies in oil companies. One way of reducing costs is to improve coordination of activities and resources. The production of oil offshore involves a substantial number of activities in a set of wells. These activities have to be coordinated in order to obey various types of constraints and, at the same time, optimize on criteria such as the production level. Well Activity Scheduling (WAS) deals with the proactive coordination of these activities to form Well Activity Schedules, as well as the dynamic maintenance of these schedules over time. In a cooperative project affiliated with the Esprit project TRUTH, Saga Petroleum a.s. and SINTEF Informatics have studied the WAS problem. In the project we have developed a constraint model, performed problem analysis, and developed a prototype system for WAS. The prototype system includes functionality for defining a particular WAS problem and genera

Keywords

Computer scienceConstraint programmingScheduling (production processes)HeuristicsGantt chartConstraint satisfaction problemScheduleSet (abstract data type)

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