A unique methodology
Each SEEBASE multi-client regional product results from a unique, proprietorial methodology and workflow that involves compilation and geospatial capture of all relevant geological and geophysical datasets in ArcGIS, followed by processing and enhancements of potential field datasets (gravity, magnetics) and an integrated interpretation phase that draws on experts from multiple geoscientific disciplines. The resultant SEEBASE product is not the result of a gravity inversion process, and there is no algorithm, computer program, or other such automation of the process. Rather, each SEEBASE is a geological interpretation that is regionally consistent with all available constraining datasets. Even in regions that lack seismic data, a high quality SEEBASE can still be produced using other datasets giving SEEBASE clients a distinct advantage.
The foundation of our methodology is that the evolution of a basin and all its associated resources (O&G, CSG, coal, minerals and groundwater) are intricately linked to the response of basement terranes to tectonic stresses and thermal processes. Individual basement terranes have unique properties of composition, age, tectonic origin, structural fabric and, very importantly, its strength/rheology. These physical properties dictate how a terrane responds to deformation during tectonic events.
A basin is formed through the response of basement terranes to deformation, and the sediments that fill the basin record this history of events (basin phases). Ultimately, the building blocks of petroleum systems elements (reservoir, source, seal and trap) were deposited or formed during structurally-controlled basin phases with additional influences on accommodation from thermal processes and eustacy (global sea-level). The preservation of hydrocarbons is also dependent on tectonic processes and basement response.
A SEEBASE depth-to-basement structural model, along with knowledge of regional terranes, major structures, basin phases, a tectonostratigraphic framework and basement-derived heat flow, are powerful tools that enable explorers to begin their analysis with a good regional context to develop new concepts and plays. SEEBASE has demonstrated value in both frontier regions and in mature basins.