The Lower Brent Group Stratigraphy, Reservoir Architecture and Reservoirs Qualities in The Deep Northern Viking Graben
Master thesis
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http://hdl.handle.net/11250/2414739Utgivelsesdato
2016-06Metadata
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Sammendrag
This thesis will give a detailed description of the stratigraphy, reservoir architecture and reservoir
qualities of the Lower Brent Group (Oseberg, Rannoch, Etive and Lower Ness formations) in the
deep northern Viking Graben. Core descriptions and well logs from Valemon –Kvitebjørn,
Huldra and Oseberg field are used to characterize 19 faceis, 10 facies association, 6 depositional
systems, and 2 sequences of the Lower Brent Group in order to assess the factors that control
their distribution within the Rungne sub-basin. The Brent delta is interpreted to be of mixed tide
and wave influence, because of the abundance of double and single mud draps and tidal bundles
in the Rannoch Formation and estuarine deposits in the Etive Formation. Transition form an
exposed wave dominated shoreline into an embayed tide dominated shoreline is documented.
The Oseberg formation is interpreted to be a part of the main Brent system, based on the
lateral interfingering of the Rannoch Formation, indicating that the Oseberg delta was still
active in the Oseberg field during deposition of Rannoch formation. Due to thickness change in
the Lower Brent group and facies change; from wave influenced shoreline to wave and tide
dominated shoreline in the Rannoch formation fault activity is identified.
Beskrivelse
Master's thesis in Petroleum geosciences engineering