CODIO is an advanced decision support system for the drilling process with focus on geosteering. The CODIO system tackles both coordination and decision complexity of the drilling process. Coordination complexity is due to interactions between geographically and organizationally distributed experts in a real-time information environment, while decision complexity is inherent in the drilling domain itself, given unavoidable uncertainties about geology, equipment behavior, etc. In CODIO we approach each complexity dimension and propose solutions based on business process technology, mathematical decision models, and a service-oriented architecture. In the paper we outline and justify the approach taken, and summarize the lessons learned in developing a pilot version of CODIO for an Integrated Operations drilling center.

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