We are establishing an absolute-age integration of the chronostratigraphy and depositional history of the offshore Tano Basin. Such integration will provide a clearer understanding of the syn-rift and post-rift history, as well as detailed paleoenvironmental models for the basin. Established companies will benefit within their current blocks by having more detailed stratigraphy and paleoenvironmental data to confirm or refine their existing models based upon seismic and well log data. In addition, they, along with companies considering entry to the area for the first time, will have a basic stratigraphic framework with predictive value to aid New Ventures evaluation.
Phase 1 is based on four wells in offshore Tano Basin. Graphically integrating results from new sample analyses on multiple biostratigraphic disciplines (foraminifera, nannofossils, palynology) against the EGI West Africa Composite Standard will obtain a framework of absolute-age calibration of lithostratigraphic units and depositional facies. EGI’s proprietary chronostratigraphic and graphic correlation technology plays a critical role in these results.
Phase 2 will aim toward a regional approach involving absolute-age integration of additional wells (10 or more) from the Tano and adjoining basins, standardization of stratigraphic nomenclature, establishing a structural framework using regional strike and dip seismic lines through the basin, followed by basin modeling to better understand the charging mechanisms of some of the recent discoveries, e.g., the Jubilee Field will be the focus.