Tectonostratigraphic development of the Upper Triassic to Middle Jurassic in the Hoop Area, Barents Sea: Implications for understanding ultra-condensed reservoir units

The most prolific reservoir intervals in the Barents Sea are found Upper Triassic to Middle Jurassic Realgrunnen Subgroup, deposited during a major change structural evolution of basin which greatly influenced its development and distribution. effects evident one petroleum provinces SW Sea, Hoop Area. Due condensed nature succession, tectonostratigraphic has been enigmatic. We use range different methods dataset, including high-resolution P-Cable seismic determine tectono-stratigraphic succession. Results important for exploration production Area beyond, but also broader understanding how ultra-condensed successions might evolve long periods non-deposition short bursts deposition. Seven phases deposition non-deposition/erosion defined. Stage 1 represents fluvio-deltaic Fruholmen Formation (Norian), followed by 2 with significant truncation non-deposition, lasting up 35 million years. Deposition resumed shallow marine fluvial Nordmela Stø formations (Pliensbachian Bajocian), both encapsule erosion (stage 3–6). 7 is represented transgression shelf Fuglen (Bathonian). from high-accommodation setting continuous relatively high rate accumulation Triassic, low-accommodation episodic extensive sediment cannibalization Jurassic, resulted cleaner sandstones better properties. enabled coarse-graded detritus hinterlands Fennoscandia prograde into distal part more amalgamation sands Jurassic. Adversely, low accommodation caused fragmented pattern preservation that needs be carefully considered subsurface datasets, often limited resolution.