Application of Process Based Stratigraphic Modelling: Methods and Theory
M.P. Suess and D. Tetzlaf
Event name: 81st EAGE Conference and Exhibition 2019
Session: Geological Visualization of Reservoirs
Publication date: 03 June 2019
Info: Extended abstract, PDF ( 393.84Kb )
Price: € 20
Seismic observations and seismic stratigraphy have opened up the subsurface to the eyes of the geoscientist. Stratigraphy and subsurface morphology are ever better imageable. However, rock properties of reservoirs at technical relevant resolution can be only locally observed in wells. Since it’s invention in the late sixties, process based stratigraphic modelling is a wellestablished approach that aims to overcome this problem. It aims to bridge the gap between scales by modeling at sufficient resolution the processes leading to the deposition of the reservoir rocks. Stratigraphic models rely on the quantitative description of sedimentation and the interaction of the structural evolution of sedimentary basins with their hinterland. The models are generated not only to understand the stratigraphic architecture or reservoirs, but also to quantify reservoir distribution and quality. For geologists they are interesting tools as they combine concepts, rules and physical processes which they can observe in the field and laboratory experiments. Even though today the models may still not be able to match all constrains from subsurface observations, they allow us to understand the sensitivity of reservoir distribution to external factors. Higher resolution models can also be used to constrain multipoint statistic models. In this overview paper we aim to describe the key elements of a stratigraphic modelling workflow. Ranging from common techniques to obtain input data to technical approaches for visualization. We finally provide an outlook on future application in cloud-based environments.