ABSTRACT

The Upper Winnipegosis Formation of the northeastern portion of the Williston Basin has been the subject of considerable exploration interest over the past five years. The prediction and delineation of these carbonate mound / pinnacle reef features has, however, proven difficult. The objective of this display is to generate an integrated study of the Winnipegosis anomaly in the Tableland area of southeastern Saskatchewan using workstation technology. The Tableland prospect is ideally suited to this type of study as quality data such as well log digits, and 2D and 3D seismic exist over the anomaly. This display recreates the exploration history of this area from regional 2D seismic exploration and wildcat drilling, through the acquisition of 3D seismic and subsequent development drilling. The manner in which geological lithofacies are related to seismic amplitudes and complex attributes is examined at well locations, and subsequently correlated throughout the seismic coverage of the prospect. Time to depth conversions and synthetic seismic techniques are incorporated through all phases of the study in order to maintain an integrated model of the anomaly. Final prospect structure, isopach, and reserve estimate maps are then generated using the capabilities presently available on a standard geophysical workstation.

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