Following an extensive period of analytical work during the period 1993 – 2003, Ichron gained a unique insight into the complexity of the Tertiary succession in the Foinaven Sub-basin.
The early phase of appraisal and development drilling on both the Foinaven and Schiehallion Fields highlighted the importance and reliability of the Ichron framework and it is this framework that is utilised in the Foinaven Sub-basin Stratigraphic Database. The study is a 58 well dataset that includes some of the key stratigraphic reference wells from the Foinaven, Schiehallion, Loyal, Alligin and Suilven Fields. These wells have been subjected to biostratigraphic re-appraisal
and interpretation utilising with the T-sequence nomenclature calibrated with the UKOOA/BGS lithostratigraphic scheme. This has provided a robust and reliable stratigraphic framework within which reservoir sections are correlated and confident seismic well ties are presented.