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Abstract

Summary

DEA Norge as operator of PL 721 has spent several years exploring this area, maturing it from 2D seismic pre-license round into a fully 3D interpreted, drill ready project. The understanding of the structural development of this area has increased markedly as ideas and concepts have been firmed up using new data. The Leirdjupet Fault Complex (LFC) generally trends in a N-S direction, while NE-SW directed faults splay out from the main fault and give rise to the development of rotated fault blocks in the vicinity of the fault complex. It separates the deep Bjørnøya Basin in the west from the shallower Fingerdjupet Sub-basin to the east.

By Late Paleozoic times, thinning above the LFC is observed associated with movement along the N-S and NE-SW fault trends due to E-W extension. This may have lead to exposure and karstification of Paleozoic carbonates. During Mesozoic times, dominant NE-SW and subsidiary WNW-ESE fault trends were active, indicating NW-SE extension with a sinistral wrench component. This influenced the deposition of the siliciclastic strata of the Realgrunnen Sub-group during the Mid Jurassic, as extensional tectonics created accommodation space allowing for thicker sand development in the LFC than that observed in the wells in Q7321.

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/content/papers/10.3997/2214-4609.201701287
2017-06-12
2024-04-20

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References

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http://instance.metastore.ingenta.com/content/papers/10.3997/2214-4609.201701287
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Pre-Cretaceous Structural Development of the Leirdjupet Fault Complex and its Impact on Prospectivity, Southwestern Barents Sea, Norway
Conference Proceedings 2017, 1 (2017); https://doi.org/10.3997/2214-4609.201701287
/content/papers/10.3997/2214-4609.201701287
/content/papers/10.3997/2214-4609.201701287
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