Application of seismic stratigraphy in reservoir characterisation: A case study of the passive margin deposits of the northern Orange Basin, South Africa

dc.contributor.authorSamakinde, Chris Adesola
dc.contributor.authorVan Bever Donker, Jan M.
dc.contributor.authorDurrheim, Raymond J.
dc.date.accessioned2021-01-25T09:28:10Z
dc.date.available2021-01-25T09:28:10Z
dc.date.issued2020
dc.description.abstractThe Barremian-Cenozoic depositional sequences in the northern Orange Basin, SW, South Africa, were investigated using the principles of seismic stratigraphy to understand the interplay of tectonics and sedimentary processes in the distribution of potential hydrocarbon reservoirs. A seismic stratigraphic workflow (seismic sequence, seismic facies and lithofacies analysis) was completed by utilising three seismic lines (L1, L2 and L3) tied to Wireline data (gamma, checkshots and sonic) in two exploration wells (A1 and A2). Seven depositional sequences were mapped followed by the creation of lithofacies log interpreted from the gamma-ray log (GR) by setting maximum GR value at 60 API for Sandstone, 60–100 API for Siltstone and above 100 API for Shale. Six seismic facies units are recognised based on internal geometry and configurations of the seismic reflectors; Tangential-Oblique (SF1), Hummocky (SF2), Wavy-Parallel (SF3), Chaotic (SF4), Sub-parallel/parallel (SF5) and Divergent (SF6). SF4 is dominant within the Barremian-Aptian sequence and expressed in an incised valley fill, suggesting mass transport deposition accompanied by strong hydrodynamic conditions.en_US
dc.identifier.citationSamakinde, C. A. et al. (2020). Application of seismic stratigraphy in reservoir characterisation: A case study of the passive margin deposits of the northern Orange Basin, South Africa. Journal of Petroleum Exploration and Production Technology. Earth Science. University of the Western Cape.en_US
dc.identifier.issn2190-0566
dc.identifier.uri10.1007/s13202-020-01050-9
dc.identifier.urihttp://hdl.handle.net/10566/5748
dc.language.isoenen_US
dc.publisherSpringer Natureen_US
dc.subjectFacies modellingen_US
dc.subjectOrange Basinen_US
dc.subjectSeismic faciesen_US
dc.subjectHydrocarbon reservoirsen_US
dc.subjectHydrodynamic conditionsen_US
dc.titleApplication of seismic stratigraphy in reservoir characterisation: A case study of the passive margin deposits of the northern Orange Basin, South Africaen_US
dc.typeArticleen_US

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