Sketchbased interface and modelling of stratigraphy and structure

Sketch-based interface and modelling of stratigraphy and structure in three dimensions by Carl Jacquemyn, Margaret E. H. Pataki, Gary J. Hampson, Matthew D. Jackson, Dmytro Petrovskyy, Sebastian Geiger, Clarissa C. Marques, Julio D. Machado Silva, Sicilia Judice, Fazilatur Rahman, and Mario Costa Sousa Journal of the Geological Society Volume (): jgs 2020 -187 March 11, 2021 © 2021 The Author(s). Published by The Geological Society of London

Screenshot of the Rapid Reservoir Modelling research software interface, in which we have implemented the sketch-based interface and modelling methods reported here. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Sketched 3 D model based on five measured outcrop sections and boreholes, illustrating the initial scenario SM 1 for Case study I. The parasequence boundaries (flooding surfaces) and facies boundaries are correlated by sketching in the cross-section window (top) displaying the measured outcrop sections and well logs (Fig. 1). Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Examples of different sketching procedures for initial interpretation model SM 1. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

3 D perspective views of the initial model SM 1 for Case study I. (a) Full 3 D model. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Comparison of the initial model SM 1 (left column) with models sketched for alternative scenarios SM 2 to SM 5 (right column) for Case study I. Facies proportions are calculated for the different scenarios. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Different approaches are possible to sketch the top bounding surface for the flood tidal delta deposits in the middle parasequence as isolated bodies. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Sketched 3 D model based on a road-cut outcrop, illustrating the initial scenario NF 1 for Case study II. The top window shows the sketched interpretation of faults and bed boundaries on the outcrop, which is assumed to be a vertical cross-section. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Two different approaches to sketch the initial interpretation model NF 1. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Comparison of models sketched for three different scenarios of Case study II from different perspectives. Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London

Screenshots of flow diagnostics output for modelled scenario SM 5 (Fig. 5 h). Carl Jacquemyn et al. Journal of the Geological Society 2021; jgs 2020 -187 © 2021 The Author(s). Published by The Geological Society of London