A redeposited chalk reservoir (upper Maastrichtian-Danian) in the Oseberg Field, Northern North Sea

Ali Jahanpanah, Jon Ineson

Research output: Chapter in Book/Report/Conference proceedingAbstract in proceedingspeer-review

1 Citation (Scopus)

Abstract

Setting and Stratigraphy
The northern limit of the Upper Cretaceous chalks in the North Sea occurs at 60–61°N where carbonates interdigitate with mud-rich siliciclastics. This facies transition, coinciding with marked submarine palaeotopography descending from the Horda Platform to the Viking Graben, is recorded primarily by well-log data which demonstrate the temporal shifts in the position of the chalk:mudstone facies boundary. The Oseberg Field, 130 km west of Bergen (Norway), straddles this regional facies front; declining production from the primary Jurassic reservoirs in this field has focussed attention on hydrocarbon-bearing carbonates in the uppermost Shetland Group, mainly in the south of the field. Of particular interest is a 10–30 m thick chalk-rich section that caps the upper Campanian–Maastrichtian Hardråde Formation; a thin Danian carbonate unit (equivalent to the Ekofisk Formation farther south) is also recognisable locally, resting on a hiatal surface spanning the latest Maastrichtian (nannofossil subzone UC20d) and early Danian (subzones NNTp1–4E).
Original languageEnglish
Title of host publication74th EAGE Conference and Exhibition
PublisherEuropean Association of Geoscientists and Engineers
Number of pages2
ISBN (Print)978-90-73834-28-6
DOIs
Publication statusPublished - 2012
Event74th EAGE Conference and Exhibition Incorporating SPE EUROPEC 2012 - Copenhagen, Denmark
Duration: 4 Jun 20127 Jun 2012

Conference

Conference74th EAGE Conference and Exhibition Incorporating SPE EUROPEC 2012
Country/TerritoryDenmark
CityCopenhagen
Period4/06/127/06/12

Programme Area

  • Programme Area 3: Energy Resources

Fingerprint

Dive into the research topics of 'A redeposited chalk reservoir (upper Maastrichtian-Danian) in the Oseberg Field, Northern North Sea'. Together they form a unique fingerprint.

Cite this