The stratigraphic resolution of the Early Cretaceous interval from the North Falkland Basin, within which prospective Sea Lion reservoir sandstones were deposited. This supported the seismic interpretation and adding sub-seismic resolution at certain levels. Bio- and chemical stratigraphic data were based on conventional core and ditch cuttings from all the Rockhopper-operated wells in blocks 14/10 and 14/15, Sea Lion area. (69)
Integrated bio and chemical stratigraphy in the development of a reservoir-scale framework - Sea lion Field area, North Falkland Basin
Rockhopper Exploration plc
Offshore Falkland Islands (Malvinas)
- Biostratigraphic (palynology and ostracods) and chemical stratigraphic analysis
Deposition within the North Falkland Basin occurred within a fluvial and lacustrine environment resulting in an absence of marine derived palynomorphs and a scarcity of other regionally occurring age diagnostic taxa.
This, together with a lack of previously published data meant the chronostratigraphic calibration of Early Cretaceous non-marine events was poor and needed to be addressed.
In addition, the chemical stratigraphy results from the analysis of sandstones initially provided a variable set of data that was inconsistent with both the biostratigraphy and seismic data in a stratigraphic layering sense, indicating that the controls of elemental character were not primarily stratigraphic controlled, but dominated by sediment provenance characteristics. (108)
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wells analysed from blocks 14/10 and 14/15
of well section analysed
palynological samples analysed
micropalaeontological samples analysed
chemical stratigraphy samples analysed
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