Geological processes modeling in support of the conceptual model justification

UDK: 519.868:55
DOI: 10.24887/0028-2448-2022-12-14-19
Key words: conceptual model, geological processes modeling, sedimentation modeling, Neocomian, landslide
Authors: T.V. Olneva (Gazpromneft STC LLC, RF, Saint-Petersburg), O.S. Generalenko (Gazpromneft STC LLC, RF, Saint-Petersburg)

The conceptual sedimentation model is important in the study of region geology. Working with actual geological and geophysical data, a specialist transforms abstract models taking into account the most probable scenario for the development of geological processes at a certain point in time within a specific study area. Adding a time factor to the model can significantly increase its informativeness. For example, a conceptual model can be represented through a description of the sequence of processes in their relationship within the formation of one or more clinocyclites and their sequential visualization in the style of "freeze frame" or the so-called "slicing" of frames. This option can be considered as one of the possibilities of approaching the dynamic model. Dynamic sedimentation modeling significantly contributes to the creation of dynamic conceptual models; it allows directly observe simulated geological events step by step.

The article present a new approach, which involves the creation of a conceptual sedimentological model based on core study, well logging and seismic data, and considers the results of sedimentation modeling, on the example of one of the clinocyclites of the Neocomian clinoform complex. The use of sedimentation modeling in support of the conceptual model development for the layers of the Pym clinocyclite at one of the sites in the Khanty-Mansiysk autonomous district made it possible to highlight a number of features in the slope formation processes, to clarify the direction of sedimentary material movement to the foot of the slope, considering the hypsometry of the paleosurface, and further into the deep-water zone, to localize sedimentation depots.

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