Philosophiae Doctor - PhD / Integrated approaches in the study of petroleum exploration are increasingly becoming
significant in recent times and have yielded much better result as oil exploration is a
combination of different related topics. The production capacity in hydrocarbon exploration
has been the major concern for oil and gas industries. In the present work an integrated
approach was made with seismic, well logs and biostratigraphy for predicting the
depositional environment and to understand the heterogeneity within the reservoirs belonging
to Valanginian (Early Cretaceous) age of Gamtoos Basin, Offshore South Africa.
Objectively, the integrated work was mainly based on seismic stratigraphy (seismic sequence
and seismic facie analysis) for interpretation of the depositional environments with
combination of microfossil biostratigraphic inputs. The biostratigraphic study provides
evidences of paleo depth from benthic foraminifera and information about bottom condition
within the sedimentary basin, changing of depositional depth during gradual basinal fill
during the Valanginian time.
The petrophysical characterization of the reservoir succession was based on formation
evaluation studies using well logs to investigate the hydrocarbon potential of the reservoir
across Valanginian depositional sequence. Further, the static modeling from 2D-seismic data
interpreted to a geological map to 3D-numerical modeling by stochastic model to quantify the
evaluation of uncertainty for accurate characterisation of the reservoir sandstones and to
provide better understanding of the spatial distribution of the discrete and continuous
Petrophysical properties within the study area.
| Identifer | oai:union.ndltd.org:netd.ac.za/oai:union.ndltd.org:uwc/oai:etd.uwc.ac.za:11394/7075 |
| Date | January 2019 |
| Creators | Lasisi, Ayodele Oluwatoyin |
| Contributors | Chatterjee, Tapas K. |
| Publisher | University of the Western Cape |
| Source Sets | South African National ETD Portal |
| Language | English |
| Detected Language | English |
| Rights | University of the Western Cape |
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