A big congratulations to Dr. Dimitrios Ktenas, who on Thursday 28 March 2019 successfully defended his PhD thesis at the Department of Geosciences, UiT The Arctic University of Norway. The title of the PhD thesis is «Quantification of the magnitude of net apparent erosion in the southwestern Barents Sea by using compaction trends in shales and sandstones – Implications for hydrocarbon exploration» .

Dr. Ktenas was supervised by Adjunct Professor Erik Henriksen, UiT/North Energy ASA (now at Henriksen Maritime AS), Professor Karin Andreassen, UiT, Dr. Jesper Kresten Nielsen (MOL Norge Group) and Ivar Meisingset, First Geo AS (now at ModelGeo AS).

Summary of thesis

On the Norwegian Continental Shelf, the western Barents Sea shelf is generally ice-free and proven by recent discoveries as a frontier area for hydrocarbon exploration. During the Cenozoic, most of the areas of the Barents Sea were subjected to significant uplift and erosion, processes that had important consequences on the petroleum systems.

This thesis aimed to investigate the estimation of the net apparent erosion in the southwestern Barents Sea and consequently to determine the regional variation and magnitude of the net apparent erosion by studying the compaction of selected stratigraphic layers.

An integrated approach based on seismic interpretation of multi-client seismic data, shale and sandstone compaction combined with a rock physics application was used in order to estimate the amount of net apparent erosion in the study area.

The findings serve as input to the overall understanding of the reservoir characteristics, the maturity of the source rocks, timing of expulsion and the retention of hydrocarbons in the traps.

The doctoral work was carried out at the Department of Geosciences at UiT and North Energy ASA, and was funded by GLANAM – GLAciated North Atlantic Margins, under the EU FP7 program Marie Curie ITN. This research also corresponds to a contribution of the Research council of Norway (RCN)-funded project ‘Research centre for Arctic Petroleum Exploration’ (ARCEx).

Photo (from left): Professor Alejandro Escalona, UiS, (2nd opponent); Professor Karin Andreassen, UiT (co-supervisor); Dr. Jesper Kresten Nielsen, MOL Norge (co-supervisor); Dr. Dimitrios Ktenas, UiT; Professor Anthony Doré, Equinor UK (1st opponent); Professor Alfred Hanssen, UiT (leader of the defense); Dr. Andreia Plaza Faverola, UiT (internal member and leader of the committee); Adjunct Professor Erik Henriksen, Henriksen Maritime AS (main supervisor).