1887

Abstract

Summary

In accordance with many researches, paleo-riverbeds and associated with them sand bodies of alluvial genesis are of the utmost interest in searching for hydrocarbon accumulations as they represent reliable lithological traps. Pontian-Pliocene riverbed sequences of the Pannonian Basin deposited in the settings of lacustrine-fluvial plain are no exception. In recent years, large amount of 3D CDP seismic investigations was carried out. Interpretation of the obtained data allows forming a general understanding of paleoriverbed systems distribution, tracking their stage-by-stage areal variations over the long geological time. Seismic interpretation carried out in the sequence formed in the settings of lacustrine-fluvial plain demonstrated a number of specific problems. The first problem concerns correlation of paleo-isochrone surfaces. The second problem lies in the fact that the smoothed versions of interpretation that are usually sufficient for structural imaging are not optimal for seismic facies analysis. As a result, authors have developed own object-based interpretation technique that allows significant improvement of its quality and information content. The approach is called “Pathfinder”.This method allows moving to a fundamentally new level of seismic facies and sedimentary analysis. There emerges the possibility to create a more accurate depositional model that meets all the requirements of geological modelling.

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/content/papers/10.3997/2214-4609.201600881
2016-05-30
2024-03-29
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References

  1. Biju-Duval, B.
    [2002] Sedimentary geology. Paris.
    [Google Scholar]
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    (Ed.) [1986] Sedimentary environments: Processes, Facies and Stratigraphy. Blackwell Publishing.
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