NORLEX

Norwegian Interactive Offshore Stratigraphic Lexicon

Felix Gradstein and Oyvind Hammer

Norwegian Interactive Offshore Stratigraphic Lexicon

Industrial mandate to update the 25 year old and boring NPD Lithostratigraphic Bulletins # 1- 5 …1600+ wells reported with Formations…

Industry - Academia Consortium funded by 50+ companies and NPD

Since 2005, twelve workshops with NPD, oil companies, NGU and universities and over 25 working meetings. Over 75 scientists have participated, with a core of 7 people.

Norlex Lithostratigraphy ConceptNorlex Lithostratigraphy Concept

UK, Dutch and Danish North Sea ~10 years ahead UK, Dutch and Danish North Sea ~10 years ahead

http://basin.gdr.nrcan.gc.ca/index_e.php

www.nhm.uio.no/stratlexwww.nhm.uio.no/stratlex

www.nhm.uio.no/stratlexwww.nhm.uio.no/stratlex

www.nhm.uio.no/norlexwww.nhm.uio.no/norlex

50+ major lithostratigraphic changes 50+ major lithostratigraphic changes 20160 formation tops in 1086 wells20160 formation tops in 1086 wells

Interactive ’Oracle’ System forInteractive ’Oracle’ System forBiostratigraphy, Taxonomy and Well CorrelationsBiostratigraphy, Taxonomy and Well Correlations

12000 offshorefossil names + synonyms Reticulophragmium pauperum

Neogene Litho-Biostratigraphy, northern North SeaNeogene Litho-Biostratigraphy, northern North Sea

Anthonissen (2008 , 2009)Anthonissen (2008 , 2009)

Neogene Biostratigraphy Calibrated to Standard Stages Neogene Biostratigraphy Calibrated to Standard Stages

Thickness Map Hordaland Group, northern North Sea, with lineaments

Wells with rings have Rogaland + Hordaland tops Red wells have biostrat = clickable

Manuscript reviewers: Manuscript reviewers: Jon GjelbergJon GjelbergJames OggJames OggVigdis LøvøVigdis LøvøTom DreyerTom DreyerMike Charnock Mike Charnock

• Redefinition of Shetland – Cromer Knoll Groups in Norwegian Sea • Directly comparable with definitions in North Sea (consistent tops)

Cretaceous LithostratigraphyCretaceous Lithostratigraphy North Sea Norwegian Sea North Sea Norwegian Sea

Grindhval Member, 6305/5-1 type wellGrindhval Member, 6305/5-1 type well

Isochore Map

STATFJORD GP.

DUNLIN GP.

BRENT GP.

HEGRE GP

BÅT GP.

FANGST GP.

VIKING GP

Ness Fm.Ness Fm.

Tarbert Fm.

Etive Fm.

Rannoch Fm.

Heather Fm.

Draupne Fm.

Rogn Fm.

Garn Fm.

Not Fm.

Ile Fm.

Ror Fm. Tofte Fm.

Tilje Fm.

Åre Fm.

JUR

AS

SIC

U

M

L

CR

ET

.T

RI.

SOUTHERNNorth Sea

NORWEGIAN-DANISH BASIN

SOUTHERNViking Graben

NORTHERNNORTH SEA

TRØNDELAGPLATFORM

HALTENTERRACE

NORDLANDRIDGE

Haut.

Valang.

Ryaz.

Volg.

Kimm.

Oxf.

Call.

Bath.

Bajoc.

Aalen.

Toarc.

Plienc.

Sinem.

Hett.

Rhæt.

Nor.

Ula

Fm

. Tau Fm.

Mandal Fm.

Hauge-sund Fm.

Sauda Fm.

Flekkefjord Fm.

E

Farsund Fm.

Egersund Fm.

Gassum Fm.

Fjerrit-slevFm.

MuninMbr

Drake Fm.

Cook Fm.

Amundsen Fm. Johansen Fm.Burton Fm.

Nansen Fm.Eriksson Fm.

Raude Fm.

S

FK

S: Sognefjord Fm. F: Fensfjord Fm. K: Krossfjord Fm. O: Oseberg Fm. B: Broom Fm.E: Eldfisk Mbr. A: Atrid Mbr. Fr: Fraoch Mbr. F: Fenris Mbr.

A

OB

Tarbert Fm.Heather Fm.

FrF

Jurassic LithostratigraphyJurassic Lithostratigraphy

Jurassic Biostratigraphy, North SeaJurassic Biostratigraphy, North Sea

Atlas of Norwegian offshore MicrofosssilsAtlas of Norwegian offshore Microfosssils click and picture it click and picture it

NORLEX Summary AtlasNORLEX Summary Atlas