
Study details a glance

Biostratigraphy
Review

New
Biostratigraphy
Analyses

Reservoir
Geology

Palaeoenvironments
& Facies

Provenance

Reservoir
Quality

17
Wells

Jurassic
Key points
- An integrated multidisciplinary approach is used to differentiate and characterise tidally swept shelfal sands of the ‘True Rogn’ relative to submarine apron sands of the ‘Rogn Equivalent’
- 684 new biostratigraphic sample analyses across the Viking Group with core descriptions and petrography from 3 wells, plus special petrophysical interpretation of spectral gamma wireline logs using LogsStrat
- Tremendous variability was observed in the completeness, stratigraphic & spatial distribution, hiatuses and thickness within the Viking Group
- Integrated biostratigraphy and reservoir geology of the sandstone and claystone lithologies of the Late Jurassic Rogn, Spekk and Melke Formations
- Investigated sub‐regional stratigraphic variability, geographic distribution of sands, reworking and microfacies/ palynofacies of the Rogn, Spekk and Melke Formations, as well as gross geological reservoir characteristics
- Study completed during 2017; ready for delivery with all supporting data
- Integrated micropalaeontology, palynology, petrophysics (for lithology and porosity) and sedimentology (new core description and sampling) has significantly improved stratigraphic resolution
- 683 new quantitative micropalaeontology and palynology closely spaced; focused on cored intervals to provide a consistent, high-resolution database
- Core descriptions undertaken, together with petrography of core samples
Well List

6306/6-1 | 6407/5-2S | 6407/10-2 |
6406/9-2 | 6407/7-1S | 6407/12-1 |
6406/12-1S | 6407/7-8 | 6406/12-3A |
6406/12-2 | 6407/8-5S | 6406/12-3B |
6407/3-1S | 6407/9-1 | 6406/12-3S |
6407/4-1 | 6407/9-6 |
Deliverables
- PetroStrat zonations and chronostratigraphy are interpreted and calibrated to GTS 2012
- Integration of wireline logs with interpreted lithostratigraphy sensu NPD and MFSs sensu Charnock et al., 2001 with interpreted core descriptions and petrographic observations
- Palaeoenvironmental interpretation based on microfacies, palynofacies, core sedimentology and log pattern interpretation.
- Biostratigraphy and sedimentology driven sequence correlations of all the 17 study wells
- Time-slice maps included
- All new data are available graphically in soft copy as .pdf report and digitally , .csv files and StrataBugs .dex files as standard