Building a Sequence Stratigraphic Framework from HorizonCube and Well Data

To build an accurate subsurface sequence stratigraphic framework, an interpreter ideally needs to correlate all seismic events with available well data. Without a (semi-)automated correlation approach, such a workflow is not feasible. In this article, we present a workflow that integrates seismic data and well data through a HorizonCube, a dense set of auto-tracked seismic events. The mapped events are simultaneously analysed in the relative geologic time (Wheeler) domain and in the structural domain. Among others, HorizonCube derived attributes are extracted to help analyse relative changes in sedimentation rate, base level variations, depositional trends and geomorphologic patterns. All extracted information is collectively interpreted and calibrated to well data. The workflow is illustrated in two subsurface case studies representing a fluvio-deltaic and a mixed silliciclastic-carbonate settings.