The paper describes the underlying infrastructure of an advanced real time integrated drilling simulator that is under development. Focus will be on handling the complex data flow and meeting the requirements regarding simultaneity when designing such a compound system. A synthesis of multiple transient and steady state models for drilling sub-processes with links to 3D visualization software and measured data is being built on the technology described in this paper. Possible applications include: ?personnel training ?testing and comparing drilling plans ?real-time diagnosis: warnings, optimization and forward looking ?process control ?post analysis This paper describes several challenges when developing a compound system for data processing in networks. For example the system must: ?be designed to function with a degree of sensor failure ?make both measured and predicted values available ?make historical data available for the entire well ?make auxiliary data (rig, formation) available ?allow for synchronization of measurements and predictions in time ?manage task co-ordination between modules ?manage storage and retrieval of user communication The paper discusses different approaches to the challenges presented and recommends solution strategies. The underlying infrastructure is a crucial part of an integrated drilling simulator. It is the core of a technology that allows better utilization of drilling data through easier data access, visualization and advanced modeling. Such a system is an important element in integrating operations and enabling better communication between distributed experts.
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