This paper describes the use of a graphical pre-processing software to generate the grid block array input data for the large scale Kuparuk Full Field Model. Geological and reservoir property maps generated with various mapping packages were imported along with the 77 by 88 simulation grid. Computing time for calculating the entire grid block array data was approximately 45 minutes on a VAXStation 3200.

The pre-processor greatly expedited the task of initializing and updating the model. An estimated two man-months of engineering time were saved. The compatibility of the preprocessor with the simulator helped to ensure data consistency. Juxtaposition of sands due to faulting and truncation were handled automatically using non-standard grid block connections. An inactive middle layer was extracted while preserving the proper depths of the lower sands, resulting in significant savings in CRAY run times and memory requirements.

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