Abstract
A detailed integrated multi-disciplinary study, including sedimentology, biostratigraphy, seismics, structural geology, log correlations, geochemistry and palynofacies studies has been carried out in the Feda Graben and Gertrud Graben. Four wells (Gert-1, Gert-2, Jeppe-1 and Gwen-2) have been carefully investigated. An overall transgressive, storm dominated, Jurassic synrift succession was deposited within the northern part of the Danish Central Trough as a result of halfgraben subsidence and overall eustatic sealevel rise. Six depositional sequences are defined in the Jurassic succession. The lowermost sequences comprise Late Kimmeridgian back-barrier and shoreface reservoir sandstones of the ``basal sandstone unit`` and the Heno Formation deposited within a transgressive systems tract and highstand systems tract. The second sequence comprises Late Kimmeridgian middle shoreface reservoir sandstones of the Heno Formation deposited within a transgressive systems tract. The remaining four sequences are identified within the thick offshore claystones of the Farsund Formation and comprise transgressive systems tracts and highstand systems tracts of Late Kimmeridgian to Late Volgian age. Sequence 6 consists of Middle to Late Volgian thin, interbedded turbidite sandstones and organic rich offshore claystones of the ``hot unit``, deposited within a lowstand systems tract. All the sequences in the Feda and Gertrud Grabens are type 2 sequences due
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Citation Formats
Johannessen, P N, Dybkjaer, K, and Skovbjerg Rasmussen, E.
Sequence stratigraphy of Upper Jurassic reservoir sandstones in the northern part of the Danish Central Trough. A contribution to the EFP-90 project: Upper Jurassic sandstone reservoirs in the Danish Central Trough.
Denmark: N. p.,
1992.
Web.
Johannessen, P N, Dybkjaer, K, & Skovbjerg Rasmussen, E.
Sequence stratigraphy of Upper Jurassic reservoir sandstones in the northern part of the Danish Central Trough. A contribution to the EFP-90 project: Upper Jurassic sandstone reservoirs in the Danish Central Trough.
Denmark.
Johannessen, P N, Dybkjaer, K, and Skovbjerg Rasmussen, E.
1992.
"Sequence stratigraphy of Upper Jurassic reservoir sandstones in the northern part of the Danish Central Trough. A contribution to the EFP-90 project: Upper Jurassic sandstone reservoirs in the Danish Central Trough."
Denmark.
@misc{etde_10148374,
title = {Sequence stratigraphy of Upper Jurassic reservoir sandstones in the northern part of the Danish Central Trough. A contribution to the EFP-90 project: Upper Jurassic sandstone reservoirs in the Danish Central Trough}
author = {Johannessen, P N, Dybkjaer, K, and Skovbjerg Rasmussen, E}
abstractNote = {A detailed integrated multi-disciplinary study, including sedimentology, biostratigraphy, seismics, structural geology, log correlations, geochemistry and palynofacies studies has been carried out in the Feda Graben and Gertrud Graben. Four wells (Gert-1, Gert-2, Jeppe-1 and Gwen-2) have been carefully investigated. An overall transgressive, storm dominated, Jurassic synrift succession was deposited within the northern part of the Danish Central Trough as a result of halfgraben subsidence and overall eustatic sealevel rise. Six depositional sequences are defined in the Jurassic succession. The lowermost sequences comprise Late Kimmeridgian back-barrier and shoreface reservoir sandstones of the ``basal sandstone unit`` and the Heno Formation deposited within a transgressive systems tract and highstand systems tract. The second sequence comprises Late Kimmeridgian middle shoreface reservoir sandstones of the Heno Formation deposited within a transgressive systems tract. The remaining four sequences are identified within the thick offshore claystones of the Farsund Formation and comprise transgressive systems tracts and highstand systems tracts of Late Kimmeridgian to Late Volgian age. Sequence 6 consists of Middle to Late Volgian thin, interbedded turbidite sandstones and organic rich offshore claystones of the ``hot unit``, deposited within a lowstand systems tract. All the sequences in the Feda and Gertrud Grabens are type 2 sequences due to high subsidence rates, except sequence 6 which is interpreted to be a type 1 sequence, where the rate of relative sealevel fall was so large that sand was transported out in the deep part of the basin. (au) (32 refs.).}
place = {Denmark}
year = {1992}
month = {Dec}
}
title = {Sequence stratigraphy of Upper Jurassic reservoir sandstones in the northern part of the Danish Central Trough. A contribution to the EFP-90 project: Upper Jurassic sandstone reservoirs in the Danish Central Trough}
author = {Johannessen, P N, Dybkjaer, K, and Skovbjerg Rasmussen, E}
abstractNote = {A detailed integrated multi-disciplinary study, including sedimentology, biostratigraphy, seismics, structural geology, log correlations, geochemistry and palynofacies studies has been carried out in the Feda Graben and Gertrud Graben. Four wells (Gert-1, Gert-2, Jeppe-1 and Gwen-2) have been carefully investigated. An overall transgressive, storm dominated, Jurassic synrift succession was deposited within the northern part of the Danish Central Trough as a result of halfgraben subsidence and overall eustatic sealevel rise. Six depositional sequences are defined in the Jurassic succession. The lowermost sequences comprise Late Kimmeridgian back-barrier and shoreface reservoir sandstones of the ``basal sandstone unit`` and the Heno Formation deposited within a transgressive systems tract and highstand systems tract. The second sequence comprises Late Kimmeridgian middle shoreface reservoir sandstones of the Heno Formation deposited within a transgressive systems tract. The remaining four sequences are identified within the thick offshore claystones of the Farsund Formation and comprise transgressive systems tracts and highstand systems tracts of Late Kimmeridgian to Late Volgian age. Sequence 6 consists of Middle to Late Volgian thin, interbedded turbidite sandstones and organic rich offshore claystones of the ``hot unit``, deposited within a lowstand systems tract. All the sequences in the Feda and Gertrud Grabens are type 2 sequences due to high subsidence rates, except sequence 6 which is interpreted to be a type 1 sequence, where the rate of relative sealevel fall was so large that sand was transported out in the deep part of the basin. (au) (32 refs.).}
place = {Denmark}
year = {1992}
month = {Dec}
}