Journal of Petroleum Geology, Vol.14,
No.4, pp. 387-416, 1991
©Copyright 2000 Scientific Press,
Ltd.
THE EARLY TO
"MIDDLE" CRETACEOUS LITHOSTRATIGRAPHY
OF THE CENTRAL NORTH SEA (UK SECTOR)
S. Crittenden*, J. Cole* and C.
Harlow*
* Geolink UK Ltd, Bridge of Don,
Aberdeen AB2 8EW
Abstract
A revised lilhostratigraphical framework of
the Early to "Middle" Cretaceous strata of the Central
North Sea (UK sector) derived from the rigorous examination of
more than 100 commercial boreholes is presented. Previously
published frameworks have tended toward oversimplification of the
Early to "Middle" Cretaceous as the interval was
considered initially to be of minor importance with regard to
prospectivity. However, there is a general feeling in the
industry that the Early to "Middle" Cretaceous is
prospective, particularly with regard to subtle stratigraphical
traps like the Kilda/Bosun and Scapa fields. It
is inevitable that as more attention, due to hydrocarbon
exploration, is paid to an interval that the stratigraphical
models used progress from the simplistic to the complex. The
framework presented here is the result of a pragmatic approach in
that it is based upon the integration of previously published
schemes, with the erection of new units derived from new analyses
and interpretation. The complete lithostratigraphical framework
is defined, explained and discussed with reference to
borehole
examples in the Central North Sea.