Study details a glance
Biostratigraphy
Review
New
Biostratigraphy
Analyses
Reservoir
Geology
Palaeoenvironments
& Facies
Reservoir
Quality
104
Wells
Tertiary
Mesozoic
Paleozoic
Key points
- Technically consistent, regionally correlatable Ichron Sequences assigned from first returns to TD in every well
- 2,350m core described at a 1:50 scale from 79 wells (database in total is 104 wells), with 250 samples analysed petrographically, and a subset of those with supplementary XRD and SEM analysis
- Having initially been developed in 2005, our Barents Sea database has grown across 15 subset study releases, and is now presented as this technically consistent stratigraphic and sedimentological database of all exploration wells drilled up to 2012.
Founded originally by Ichron in 2005 and expanded annually for 10 years thereafter, with an update of the entire library in 2015 – our Barents Sea sedimentological and stratigraphic database comprises 104 wells. PetroStrat will now be seeking to grow the database with studies on a selection of the ~50 wells released by the NPD since our 2015 update, guided by operator requirements.
Foundational Stratigraphic and Sedimentological Reference
This key technical reference provides a consistent stratigraphic framework (indexed by our ‘Ichron Sequences’) – that our 1:50 scale core descriptions to determine facies, and mineralogy/reservoir quality characterisation using petrography, SEM and XRD analysis are biostratigraphically calibrated to. The overarching aim is to investigate the stratigraphic development and sedimentary style of reservoir-scale building blocks, and primary and secondary controls on reservoir quality within hydrocarbon reservoirs. Of our 104 database wells, 79 have visual, ichnofacies-based core descriptions generated by Ichron at the NPD. All information has been incorporated into timeslice palaeogeographical reconstructed GDE maps, that illustrate the evolution of depositional systems from the Triassic Tr60 (latest Rhaetian) up to the T110 (Oligocene). Detailed schematic depositional models for each formation help illustrate reservoir quality risk related to facies. Further, the released conventional core analysis (CCA) data, has been coded by data derived from new core descriptions, petrographic analyses and biostratigraphy to link porosity & permeability data to geological controls both from a primary depositional and secondary diagenetic/burial perspective. Where beneficial, chemical stratigraphic analysis of sands from core and cuttings has been undertaken to provide insights on regional variation in the sediment provenance.
Unified and Updated Version
To help support operators with their renewed phase of exploration screening in the Barents Sea, as part of the collective efforts to boost gas supplies to Europe – PetroStrat now offers the flexibility for companies to license custom well subsets in priority AOI’s. The APA 2023 round is set to include 78 new license areas in the Barents Sea, and the PetroStrat database includes wells associated with every discovery up until 2015.
Deliverables
| Deliverables | Format |
|---|---|
| 1:50 scale descriptions& review of >2,350m from our 79 cored Barents Sea wells | |
| Petrographic descriptions of 250 thin-sections from 79 cored wells, many with SEM/XRD analysis | Excel, PDF |
| Core photos illustrating the important sedimentological, ichnological and tectonic/diagenetic features | JPEG |
| Reservoir quality cross plots, attributing porosity-permeability data against new our facies, biozone, and modal composition observations | Excel, PDF |
| Tabulated stratigraphic sequence depths for each individual well | PDF & Excel |
| Stratigraphic summary chart per well, including. Age, lithostratigraphy, sample data points & biostratigraphic marker events, set against wireline/ MWD | |
| Correlation panels highlighting regional thickness trends, stratigraphic breaks and hiatal surfaces within the context of the regional structural elements | |
| Stratigraphic framework & zonation scheme | |
| Digital data export of stratigraphic sequences and lithostratigraphic boundaries | Excel |
| Database | IC |
Full Well List
| 7016/2-1 | 7120/6-3S | 7122/7-4S | 7222/11-1T2 |
| 7019/1-1 | 7120/7-1 | 7122/7-5 | 7222/11-1T3 |
| 7117/9-1 | 7120/7-2 | 7122/7-5A | 7222/6-1S |
| 7117/9-2 | 7120/7-3 | 7122/7-6 | 7223/5-1 |
| 7119/12-1 | 7120/8-1 | 7123/4-1A | 7224/6-1 |
| 7119/12-2 | 7120/8-2 | 7123/4-1S | 7224/7-1 |
| 7119/12-3 | 7120/8-3 | 7124/3-1 | 7225/3-1 |
| 7119/12-4 | 7120/8-4 | 7124/4-1S | 7225/3-2 |
| 7119/7-1 | 7120/9-1 | 7125/1-1 | 7226/11-1 |
| 7119/9-1 | 7120/9-2 | 7125/4-1 | 7226/2-1 |
| 7120/10-1 | 7121/1-1R | 7125/4-2 | 7227/11-1A |
| 7120/10-2 | 7121/4-1 | 7128/4-1 | 7227/11-1S |
| 7120/1-1R2 | 7121/4-2 | 7128/6-1 | 7228/1-1 |
| 7120/1-2 | 7121/5-1 | 7131/4-1 | 7228/2-1S |
| 7120/12-1 | 7121/5-2 | 7216/11-1S | 7228/7-1A |
| 7120/12-2 | 7121/5-3 | 7218/11-1 | 7228/7-1B |
| 7120/12-3 | 7121/7-1 | 7219/8-1S | 7228/7-1ST3 |
| 7120/12-4 | 7121/7-2 | 7219/8-2 | 7228/9-1S |
| 7120/12-5 | 7121/9-1 | 7219/9-1 | 7229/11-1 |
| 7120/1-3 | 7122/2-1 | 7220/10-1 | 7316/5-1 |
| 7120/2-1 | 7122/4-1 | 7220/5-1 | 7321/7-1 |
| 7120/2-2 | 7122/6-1 | 7220/5-2 | 7321/8-1 |
| 7120/2-3S | 7122/6-2 | 7220/6-1 | 7321/9-1 |
| 7120/5-1 | 7122/7-1 | 7220/7-1 | 7324/10-1 |
| 7120/6-1 | 7122/7-2 | 7220/8-1 | 7324/7-1S |
| 7120/6-2S | 7122/7-3 | 7222/11-1 | 7324/8-1 |
