Sedimentology of the upper Åre - lower Tilje formations with emphasis on lateral variations based on selected wells at the Halten Terrace, Mid-Norway.
Seven core descriptions covering the Top Åre Formation/Base Tilje Formation
transition were made from the following Fields and wells: the Smørbukk Field
(6506/12-K-3H, 6506/11-5 S and 6506/11-4 ST2), the Lavrans Field (6406/2-1
and 6406/2-4 SR) and the Njord Field (6407/7-1 S and 6407/7-4).
As a result of the core descriptions:
Seven facies associations (FA Å1-Å7) from the observed upper Åre Formation
Five facies associations (FA T1-T5) from the observed lower Tilje Formation
Three major erosive surfaces were interpreted and correlated in the vicinity
of or at the Top Åre Formation/Base Tilje Formation transition surface.
Eleven wells were used for wireline log correlation of the Top Åre Formation/Base
Tilje Formation transition surface, six of these wells were the same ones used for
the core description, with the exception of the Smørbukk 6506/11-4 ST2 well,
since it did not have wireline logs that covered the area of interest. The rest
of the wells were picked from field and discovery wells that penetrated both the
Tilje and °Are Formation, between the wells used in the core description. Linnorm
Discovery (6406/9-2 and 6406/9-1), Spinell Discovery (6407/4-1), Noatun
Discovery (6407/7-8) and the Hyme Field (6407/8-5 S).
As a combined result of the core description and the wireline log:
The erosive surfaces seen in the core description were recognised in wireline
Facies associations from the core descriptions were linked with corresponding
wireline log response.
Clear differences in the interpreted upper Åre Formation are seen from the
Smørbukk and Lavarans Field compared to the Njord Field.
The Top Åre Formation/Base Tilje Formation transition surface were correlated
between the chosen wells.
Place, publisher, year, edition, pages
Institutt for geologi og bergteknikk , 2014. , 102 p.
IdentifiersURN: urn:nbn:no:ntnu:diva-24513Local ID: ntnudaim:10500OAI: oai:DiVA.org:ntnu-24513DiVA: diva2:712627
Mørk, Mai Britt E., Professor